‹ÁNSACLASSNSYMBOLNOVERPRINTNLABELCDESCRIPTIOCþ 98 0 nm Areas not to be filled that lie within coverage, typically not mapped (bu, BV002) 99 5 bu Bedrock of unknown type or age (Rubble of metasiltstone and chert, KH002; KH004; bu, OP002; MM002) 100 18 Qs Surficial deposits, undifferentiated (Qs, AN002; BA002; BC002; BC003; BS004; CB003; CG002; CG004; CR010; CV003; FI002; GU002; HC002; HE002; KD002; KD004; KN009; IL002; MK002; ML002; PE002; PE003; SL002; SR004; SV002; TA015; TK002; TK003; TY002; TY003; TY 101 0 g Ice fields or glaciers (g, AN002; Qg, MG002; Oi, PE003) 102 740 Water (streams, lakes, ocean) 103 740 238 Tidal flat and estuarine deposits, offshore, subject to inundation (KN008) 104 18 Qad Avalanche deposits 105 18 Qa Alluvium (Qal, AD003; AT002; BN002; BR002; BV002; CH002; DI002; DI005; KH004; KN002; KN003; KZ002; LH002; MC003; NL002; PM002; RB002; SM002; SO002; TA002; TE002; UK002; Qa, BD002; BH002; CB003; CG004; CY002; FB002; GO002; GU002; HG002; LG002; MH002; MK00 106 18 Qaf Alluvial fan and talus deposits (Qaf, CB003; CI002; KH002; KH003; LG002; MG002; MK003; PM002; TA015; TN002; UG003; UG004; Qaf, Qha, Qda, Qtf, FB002; Qf, AT002; BD002; Qaf, Qf, Qat, BV002; Qaf, Qctf, RM004; af, CG003) 107 18 Qc Colluvium (Qc, BH003; BN002; CB003; KH002; KH004; KZ002; LH002; MH002; NB002; OP002; RM002; SO002; SP002; TA015; Qac, BD002; Qh, UL002; Qt, CV003; UK002; Qt, Ql, BG002; Qco, GU002; Qc, Qta, KH003; TN002; Qca, MC003; MM002; Qca, Qct, MG002; RM004; ct, MK0 108 18 Qls Landslide deposits (Qls, BG002; CB003; CV003; DI005; MK002; PE002; PM002; TA015; UG003; UG004; Ql, EA002; FB002; MC003; MK002; NB002; SP002; TC002; TL002; Qrs, Qls, KH003; TN002; ls, CG003; NL003; Qcl, MG002) 109 18 Qoa Older alluvium (Qc, GU002; Qao, MC004; LC005) 110 18 Qt Terrace deposits (Qt, BR002; CA002; CH002; CY002; EA002; KT?; NR002; OP002; PM002; TA015; TC002; Qbg, Qtr, TN002; Qbg, Qtr, KH003; Qhs, KT002; NL003; Qap; BV002; Qat, RM004; st, MK003; Qtg, DI005; Qrs, BH003; t, CG003; Qlt, BN002; SO002) 111 18 Qac Abandoned channel deposits (Qfy, Qfo, KT002; MD002; MZ002; Qab, BD002; FB002; LG002; Qfo, NL003; ac, MK003; Qab, DI005; Qac, CG003; CG004; TA015) 112 18 Ql Lacustrine deposits (Ql, CB003; CG004; KH004; LH002; UG003; UG004; Qfl, MH002; Qfl, Qgl, NB002; Qlc, KH002; Qls; Qfl, TC002; Qls, DI002; DI005; ld, MK003; l, CG003) 113 18 Qsw Swamp deposits (Qs, FB002; TC002; Qsp, BD002; Qrs, RM002; Qs, Qsu, LG002; Qsw, DI005; sw, CG003) 114 18 13 Qlv Levee deposits (KN008) 115 18 Qb Beach deposits (Qb, AT002; BG002; CB003; CG004; CV003; PM002; TC002; SO002; UG003; UG004; Qyb, Qob, BL002; HP002; KW002; Qbl, SC002; Qbs, Qbb, UK002; be, MK003; b; CG003; Qbm, KZ002; SO002) 116 18 Qes Estuarine deposits (Qes, CB003; DI002; Qe, HP002; MA002; Qf, NR002; es, MK003; Ql, CV003?) 117 18 Qmt Marine terrace deposits (Qmt, CB003; CG004; PM002; UG003; UG004; Qtg, AD002; mt, CG003; MK003) 118 18 Qms Mineral spring and mud volcano deposits (Qms, GU002; Qme, MC004) 119 18 Qda Active dume deposits (For YK map initially; AR, KT quads) 120 21 Qd Dune deposits (Qd, BG002; CG004; CV003; LG002; PM002; UK002; Qna, Qns, Qms, KT002; Qms, MD002; MZ002; Qd, Qdr, FB002; Qess, KH002; KH003; TN002; Qdl, KH004; Qe, MG002; NB002; SO002; Qh, UL002; Qds, GU002; Qe, Qd, TC002; Qs, BD002; BV002; RB009; SE002; Qs 121 18 Qfl Loess, Fairbanks loess (unit Qf, FB002; Ql, BD002; BR002; BV002; CI002; CY002; KH003; TN002; Qlc, LG002; Qsw, RM002) 122 18 Qsu Frozen silt, undifferentiated (Qsu, FB002; Qs, Qsu, CI002; Qs, BH003; BN002; KH002; KH004; KZ002; RM002; SO002; Qsp, MG002; RM004) 123 24 16 Qglf Glacial outwash derived fans deposited in ephermeral glacial lakes (Qglf, LC005) 124 24 Qgl Glaciolacustrine deposits (Ql, GU002; Qgl, MC004) 125 24 Qm Glacial deposits, undivided, of Holocene and/or Pleistocene age (Qm, BD002; CB003; CG004; CI002; EA002; KN003; MK002; PM002; SP002; TA015; TN007; Qdt, Qdic, MG002; Qd, AD002; BN002; RM002; SO002; Qt, AT002; BH002; BV002; KH003; RM003; UN002; Qg, CH002; G 126 24 Qsg Superglacial drift (Qsm, BG002; CV003; MM002; Qsg, CG004; sg, CG003; Qsg, MC004) 127 24 Qrg Rock glacier deposits (Qr, LH002; NB002; SP002; TL002; TC002; Qrg, BG002; DI005; KN003; MC003; MG002; RM004; rg, MK003; CG003) 128 24 Qsf Solifluction deposits (Qsf, KH002; Qsm, BV002; Qs, MC003) 129 24 Qek Esker deposits (DI005) 130 24 Qhg Drift, neoglacial (Qm, CV003; UK002; Qm, Qmo, BG002; Qa, TL002; Qam MH002; Qt4, KH003; TN002; Qrm, MM002; Qag, MC003; NB002; Qad, CG004; PM002; UG003; UG004; Qg, TY005; Qgt4, RM004; Qm, UK002; nd, MK003; Qnd, CB003; ad, CG003) 131 24 Qho Outwash deposits, Neoglaciation (Qgo, UK002; no, MK003; Qno, CB003; Qoal, MC003; ao, CG003) 135 24 Qwu Drift, undivided, Wisconsin-age Glaciations (Aleknagik and Brooks Lake, Qag, Qam, Qamg, Qbg, Qbm, DI002; TA002; Qbl, Qbg, DI005; Qrm, FB002; Qyg, HU002; Qdtf, MG002; Qwm, MH002; Qom, MM002; Qwg; NB002; Qgt2, Qgt3, RM004; Qg, SM002; Qg3, Qg, Qm3, TA002; Q 136 24 Qwr Riley Creek glaciation, late Wisconsin (Qt3?, TN002; KH003; Qg3, SM002; Qblik, CG004; PM002; UG003; UG004; blik, CG003; MK003; Qrc2, Qblik, CB003) 137 24 Qw2 Till (unit Qt2, TN002; KH003; Qg2, SM002; Qbln, CG004; LC005; PM002; UG003; UG004; bln, CG003; MK003; Qrc1, Qbln, CB003; Qbn, IL003; ) 138 24 Qw1 Till (unit Qt1, TN002; KH003; Qg1, SM002; Qblil, CB003; CG004; LC005; PM002; TA015; UG003; UG004; blil, CG003; MK003; Qwg, MC003; Qbil, IL003) 139 24 Qw0 Till, Brooks Lake, Kvichak (Qblk, CB003; CG004; DI005; MK005; PM002; TA015; blk, CG003; MK003; Qom, Qog, DI002; DI005; TA002; TA015) [Ground moraine assigned Qclass of 1395] 140 24 Qwo Outwash deposits, late Wisconsin-age Glaciations (Qdo, BD002; Qao, Qbo, Qoo, DI002; TA002; Qoo, DI005; TA015; Qo3, TA002; Qao, LH002; Qdo, Qdot, MG002; Qwf, MH002; Qw, MM002; Qo, BH003; RM002; Qgf, RM004; Qou, SM002; Qoa, TC002; blo, CG004; MK003; Qblo, 145 24 44 Qbld Drumlin deposits in ground moraine fields of Brooks Lake glacial deposits (Qbld, LC005) 160 24 Qrd Rock-defended terraces (Qb, TN002; KH003) 161 24 Qat Altiplanation terraces (Qat, TN002; KH002; KH003) 170 21 14 Qdl Deltaic deposits, including outwash and alluvial deposits (Qdl, KN008) 190 24 13 Qew Glaciations older than Late Wisconsin (Qmm, Qim, DI002; DI005; TA002; TA015; Qga, HU002; SE002; SH002; Qdts, Qdtlm, MG002; Qog, MH002; NB002; Qgt1, RM004; Qg2, TA002; Qmhd, CB003; CG004; PM002; UG003; UG004; mhd, CG003; MK003; Qmh, DI005; Qhm, FB002; Ekl 191 24 13 Qewd Drumlins associated with early glaciations (Qewd, DI005; TA015) [Overprint symbol 13] 194 24 13 Qmhg Early Wisconsin (Mak Hill and Iowithla) ground moraine (Qmg, Qig, DI002; TA002; Qewg, DI005) [Overprint symbol 13] 195 24 13 Qow Older Wisconsin age outwash (Qho, FB002; Qof, MG002; Qmo, Qio, DI002; DI005; TA002; TA015; Qo2, TA002; Qmho, CB003; UG003; UG004; mho, CG003; Qewo, TA015) [Overprint pattern 13] 200 24 14 Qmi Illinoian glaciations (Qpe, TL002; Qdlm, BD002; Qdm, FB002; Qdtplm, MG002; Qdm, TC002; Qug, Qum, DI002; TA002; jhd, CG003; MK003; Qjhd, CG004; UG003; UG004; Qsg, SL002; Qjh, CB003) [Overprint pattern 14] 201 24 14 Qmig Glacial deposits of unnamed Illinoian(?) glaciations, ground moraine (Qug, DI002; TA002; TA015) [Overprint symbol 14] 210 24 14 Qmio Outwash older than Wisconsin-age (unit Qdo, FB002; Qdlo, BD002; Qof, TC002; Quo; DI002; TA002; Qjho, CG004; jho, CG003) [Overprint pattern 14] 220 24 15 Tmp Pliocene(?) glaciations (Qbm, FB002; Tg, NB002; QTg, MG002; Qom, TC002; Qsb, CB003) [Overprint pattern 15] 221 24 238Tmpo Very old outwash deposits (QTgo, DI005) [Overprint symbol 238] 270 790 708Qfr Fringing and fossil carbonate reefs (Qr3, OA003; Qr2, Qr1, MW006) [Overprint symbol 708] 275 5 13 Qsb Glaciallly scoured bedrock; may be covered with thin glacially derived deposits (Qsb, LC005; KN008) 280 21 QTs Surficial deposits, undivided (ID002; BR002) 282 21 QTmb Semiconsolidated marine beach deposits (Tc, AD002; QTs, GO002; HG002) 284 21 13 QTts Tilted sedimentary rocks at South Bight, Amchitka Island (QTs, RI005) 285 21 QTg High-level gravel (QTg, BV002; KH003; LG002; MD002; TN002; Tc, TC002; QTkg, BN002) 290 24 15 QTf Faneto Formation (AT002) 295 21 Qpm Placer and anthropogenic deposits (Qp, ID002; Qg, LG002; FB002) 300 410 13 Qv Volcanic rocks, undivided (Qcc, Qcs, GU002; Qv, Qal, IL002; Qv, Qfp, CB003; Qv, BN002; CG002; CG004; KN002; MK002; PM002; SO002; TY002; TY005; UG004; LC002; Qya, Qvt, UL002; Qrf, Qrq, Qra, Qo, UK002; Qvi, UG002; Qcf, UG100; CG005; vu, CG003) [Overprint s 301 12 Qw Wrangell Lava, younger part (NB002; Qdf, Qsf, GU002) 305 12 Hv Holocene volcanic rocks (Hv, Qfvs, CB003; TY005; Qp, TC002; Qby, SC002; Qvf, Qvp, Qvba, Qbo, Qbv, Qcd, Qaf5, Qaf, Qbf, Qwf, Qef, Qff, Qc, Qyv, UK002; Tmb, Tyc, AD002; Qkn1, Qmn1, NI003; Qyt, UL002; Olj, BN002) 306 12 44 Hvd Domes associated with Holocene volcanic centers (Qgd, AD004; Qld, AD009) 310 12 Qpd Pyroclastic (Ash and debris flow) deposits (Qpd, CB003; CG004; PM002; TY005; UG003; UG004; Qap, IL002; Qrp, Qrv, Qmv, Qep, UK002; Qep, UN002; Toc, AD002; Qad, CG002; afd, CG003) 311 12 Qafd Ash-flow and ash-fall deposits (Qafd, CB003; Qap, MK004) 312 12 Qdf Debris-flow deposits (Qdf, Qvg, CB003; TY005; Qsdf, GU002; Qda, Ql, UG100; df, CG003) 313 12 Qmf Mudflow deposits (Qar, IL002; mf, CG003) 314 12 Qav Volcanic avalanche deposits (Qav, CB003; Qda, GU002) 316 12 Qshc Hyaloclastite or aquagene tuff (unit Qsh, GU002) 317 12 13 Qvs Bedded volcanic sediments (Qs, UK002; RI003) 320 12 Qcs Cinder and spatter cones (Qcs, CB003; CG002; cs, CG003; Qbc, FB002; GU002; Qkr1, Qkn2, NI003; Qc, UK002; Tmt, AD002) 321 12 Qpc Pit craters and calderas {feature, not really unit} (Qkp, Qpt, HI002) 322 12 Qed Explosion debris (Qp, UG100; CG005) 330 12 Qvb Basalt of Togiak River Valley, or basalt flows (Qtb, GO002; HG002; KW002; MA002; HP002; HC002; Qbo, SC002; Qmr1, Qmn2, Qmn3, NI003; Qmb, Qcb, Qf, UK002; Qel, UN002; Tmc, Tpc, Tls, AD002; Qb, BC003; BH002; PE002; SL002; QTb, BH003; --, PI002) 335 12 15 Qva Andesite and low-silica dacite (Qe, RI003; an, CG003) [Overprint symbol 15] 336 12 14 Qvda Dacite and rhyodacite (Qls, Qd, RI003; da, CG003) [Overprint symbol 14] 337 12 16 Qvr Rhyolite 340 78 Qvd Viscous domes in young Hawaiian volcanic rocks, Hawi and Laupahoehoe Volcanic Series (Qhd, Qld, HI002) 341 78 14 Qgm Small masses of gabbro in young Hawaiian volcanic rocks, Kahuku Volcanic Series (Qkhi, HI002) 350 410 16 QTb Basalt (BG002; BR002; CA002; KT002; NR002; RM002; SE002; SH002; TA003; TC002; UL002; Tb, CH002; QTvb, QTvo, QTv, CR010) 355 410 Qhvu Earlier Wrangell Lavas, West Molokai Volcanic Series (upper), Kanapou Volcanic Series (lower), East Molokai, Lanai, Honolua, Wailuku, Honomanu, Plololu, Hamakua, and Ninole Volcanic Series - Early Pleistocene (Qwu, Qel, Qeu OA003; Ql2, Qho, Qw7, Qh7, MW0 356 410 13 Qhcu West Molokai Volcanic Series (upper) and East Molokai, Lanai, Honolua, Honomanu, Kanapou, Pololu, and Hamakua Volcanic Series cinder, spatter, and littoral cones (Qwuc, Qelc, Qeuc, Qlc2, Qhoc, Qhc7, Qkc4, MW006; Qpoc, Qmc, HI002) 358 410 15 Qhvd East Molokai Volcanic Series (upper), Honolua Volcanic Series viscous domes (Qeud, OA003; Qhod, MW006) 359 410 44 Qhgm West Molokai Volcanic Sereis (lower) and Wailuku, Kula, Kanapou, and Pololu Volcanic Series, gabbro masses (Qwli, Qwi, Qki7, Qki4, MW006; Qpoi, HI002) 360 413 Qhvl Koolau and West Molokai (lower) Volcanic Series - Early Pleistocene (Qk3, Qwl, OA003) 370 413 14 Qhcl Koolau and West Molokai (lower) Volcanic Series, cinder, spatter, and littoral cones - Early Pleistocene (Qkc3, OA003) 400 78 Qi Intrusive rocks, undivided (Qi, CB003; PM002; Qdc, Qsi, GU002) 401 78 Qvd Dacitic to rhyolitic domes (Qvd, CB003; Qdd, Qdr, Qsr, Qcr, GU002; Hvcp, TY005; Qr, UK002; Qad, MK004; Qwr, NB002; dap, CG003) 402 78 Qanp Andesite plug domes (Qva, UK002; Tmtv, Td, AD002; Qld, UG100; anp, CG003; Qv, KN009) 403 78 Qds Radial dike swarm and plug (unit Qcd, GU002) 404 78 44 Qbd Basalt dome (Tmd, Tpd, Tpv, AD002) [Overprint symbol 44] 450 410 QTv Quaternary and/or Tertiary volcanic rocks, undifferentiated (QTm, AT002; UN002; QTm, QTv, QTdv, CB003; QTv, BI002; BN002; CG002; CG004; CM002; IL002; KC002; KZ002; NI002; MK002; PM002; Tv, TY002; TY005; QTam, QTab, QTv, UK002; Tav, AD002) 451 410 QTa Andesitic lava (QTa, KH002, TN002; Tsl, AD004; QTwi, QTwt, NB007; QTma, NB108; QTw, RI003) 452 410 14 QTd Dacite (QTwi, NB007) [Overprint symbol 14] 453 410 15 QTr Rhyolite (QTvr, CR010) [Overprint symbol 15] 454 410 14 QTob Olivine basalt flows (AD005) [Overprint symbol 14] 455 410 QTw Wrangell Lava (VA002; MC002; NB002; QTu, Qwf, Qnf, GU002) 460 78 13 QTi Intrusive rocks (QTi, VA002; UN002; QTvp, QTai, UK002; Tpp, AD002) [Overprint symbol 13] 462 78 13 QTqk Quartz keratophyre dikes (AT002) [Overprint symbol 13] 463 78 14 QTad Porphyritic dikes and stocks of hornblende andesite and dacite (AT002) [Overprint symbol 14] 465 78 13 QTva Wrangell Lava, rhyodacite and rhyolite domes and associated pyroclastic rocks (QTwr, NB002; Qwd, QTi, Qni, GU002) [Overprint symbol 13] 466 78 15 QTvb Pochnoi Volcanics - Tuff-breccia, lava flows, and agglomerate, largely basaltic (QTpo, RI002) 470 410 QTva Quaternary and/or Tertiary pyroclastic flow deposits (QTp, PM002; QTap, UK002) 475 63 QTk Kiska Harbor Formation (QTk, KK002) 476 63 13 QTkb Kiska Harbor Formation, breccia member (QTkb, KK002) [Overprint symbol 13] 477 63 14 QTkf Kiska Harbor Formation, flow member (QTkf, KK002) [Overprint symbol 14] 490 39 QTc Quaternary or Tertiary metamorphic rocks, particularly in Mt. Dana area on Port Moller map (QTc, PM002; QTvq, UK002) 500 88 Tsu Sedimentary rocks, undivided (unit Ts, HE002; GU002; IL002; Ts, Tc, and Tsc, MH002; Tcs, CI002; BD002; Tsu, TK002; Ts, Tcl, Tcf, MG002; Tclg, MG003) 510 88 Tkz Kootznahoo Formation, light greenish gray, medium- to coarse-grained, friable, lithofeldspathic fluvial sandstone and siltstone containing leaf fragments and rare, cm-scale, coal lenses (Tk, PE002; PE003; CR010) 530 81 Tmr Milky River Formation (Tmr, CG002; CG004; PM002; UG002; UG004; Ts, AD002; Tvs, CB003) 540 85 13 Tsf Sterling Formation (Ts, SV002; Tps, TL002; Tks, KN002) [Overprint pattern 13] 545 85 14 Tkb Beluga Formation (Tb, SV002; Tkb, TY002; TY005) [Overprint pattern 14] 550 85 QTtg Tugidak Formation, (Tp, KD002; Ttg, KD003) 560 85 Tk Kenai Group, undivided (TL002; SV004) 561 85 16 Tkw Kenai Group and West Foreland Formation, undivided (bT, bT?, KN006) 565 81 15 Ty Yakataga Formation (Ty, MI002; QTy, CV003; MS002; BG002; Albatross, TI004) [Overprint symbol 15] 570 37 Tn Nenana Gravel, Pliocene and Miocene (HE002; MH002; FB002; BD002; KH004; MM002) 571 37 Tn? Nenana Gravel? (MM002) 572 85 Tta Tachilni Formation, Chuniksak Fm. (Tta, CB003; Tch, AT002) 573 91 Tbl Bear Lake Formation (Tbl, CG002; CG004; PM002; UG002; UG004) 580 81 13 Tnc Narrow Cape Formation (Tms, KD002; Tnc, KD003; KD006) [Overprint symbol 13] 581 81 16 Tsti Siltstone of Trinity Islands (TI004; Tts, KD006) 590 81 14 Tun Unalaska Formation (Tu, UN002) [Overprint symbol 14] 600 85 15 Tty Tyonek Formation, undivided (Ttk, AN002; Tt, SV002; Tkt, TY002; TY005; Tk, TY004) [Overprint pattern 15] 610 85 238Tu Unga Formation (Conglomerate) (Tu, CB003; PM002; Tc, Chirikof Fm., AT002) 611 35 Tbe Belkofski Formation (Tbe, CB003; PM002) 630 85 15 Ttyh Tyonek Formation and Hemlock Conglomerate, undivided (Tkth, KN002) [Overprint pattern 15] 640 33 Tcb Coal-bearing rocks, Miocene? to Eocene? (Tcb, BD002; FB002; HE002; TL002; Ts, BV002; EA002; MZ002; NR002; TN002; TN003; KH003; SL002; UL002; Tcg, MG002; MG003; Tcs, BD002) 650 35 13 Th Hemlock Conglomerate and Nevidiskov Fm. (Th, MK002; UG004; Tn, AT002) [Overprint symbol 13] 660 35 Tsk Sitkinak Formation, (To, KD002; KG002; TI002; Tsk, KD003; KG003; TI003; __, TI004) 670 35 Tts Tsadaka Formation (Tt, AN002) 675 35 16 Trf Redwood Formation (Tr, BG003; CV002; CV003) [Overprint symbol 16] 680 37 14 Tpc Poul Creek Formation sedimentary and volcanic rocks, undivided (Tp, BG002; Tps, BG003; CV002; CV003; MI002; Tp, MS002) 740 37 16 Tsi Sitkalidak Formation, (Teo, KD002; KG002; TI002; Tsi, KD003; KG003; TI003; __, TI004; KG004; Ts; Tsl; TSm, KD006) [Overprint pattern 16] 750 37 15 Tgc Gunners Cove Formation, tuffaceous conglomerate and sandstone, crystal-vitric basaltic tuff, thin basalt flows, and basaltic dikes (Tgc, RI004) 751 37 15 Tbp Banjo Point Formation, sandstone, conglomerate, tuffaceous shale, and lapilli tuff of basaltic composition (Tbp, RI005) 790 37 Ttw Tsadaka and Wishbone Formations, undivided (TK002). Tsadaka is Miocene on (TK002), whereas it is Oligocene on (AN002); Wishbone is Eocene to Paleocene on (TK002) and Eocene on (AN002) 794 37 13 Tak Amphithreatre and Kulthieth, mostly fluvial and lacustrine deposits, local debris-flow deposits; some shallow marine (OA, YDZ002; YKL002; YMS002) [Overprint symbol 13] 795 37 13 Tvs Volcanic and sedimentary rocks, undivided, Oligocene and Eocene (Tvs, LG002) [Overprint pattern 13] 800 139 Tst Stepovak and Andrew Lake Formations (Ts, CB003; PM002; Tal, AD011) 810 139 13 Ttf Tokun Formation (Tt, BG002; BG003; CV002; CV003) [Overprint symbol 13] 820 139 14 Tswf Stillwater Formation(?) (Ts, BG002; BG003; CV002; CV003) [Overprint symbol 14] 850 139 Tcl Copper Lake Formation; (Tc, MK002; Tclu, Tcls, Tcll, IL002) 855 35 14 Twf West Foreland Formation (Twf, KN002; SV002; TY002; TY005; Tk, SV004) [Overprint pattern 14] 860 85 16 Tt Tolstoi Formation, Kulthieth Formation (Tt, CG002; CG004; PM002; UG002; UG004; Tk, BG002; CV002; CV003; MS002) [Overprint symbol 16] 870 35 15 Tw Wishbone Formation (AN002) [Overprint pattern 15] 875 139 14 Tslo Siltstone of Oily Lake (Ts, MS002) [Overprint symbol 14] 880 85 16 Tfv early Eocene fluviatile and subordinate volcanic rocks (Tfv, HE002; Tvs, MG002; UK002) [Overprint pattern 16] 890 91 13 Tar Arkose Ridge Formation (Tar, AN002; Kar, TK002) [Overprint symbol 13] 900 91 Tch Chickaloon Formation (Tc, AN002; TK002) 910 33 13 Tjc Sedimentary rocks of Jarvis Creek coal field, undivided (unit Tsj, MH002) 920 33 Tsg Sagavanirktok Formation (Ts, UT003; TKs, ML002) [Overprint symbol 14] 921 33 14 Tsn Sagavanirktok Formation, Nuwok Member [Overprint symbol 14] 922 33 15 Tsfb Sagavanirktok Formation, Franklin Bluffs Member [Overprint symbol 14] 923 33 16 Tswh Sagavanirktok Formation, White Hills Member [Overprint symbol 14] 924 33 13 Tss Sagavanirktok Formation, Sagwon Member [Overprint symbol 14] 950 40 Tos Sedimentary rocks of the Orca Group, undivided (AN002; BG002; BS004; CV002; CV003; SR004; VA002) 951 40 Tovs Sedimentary and volcanic rocks of the Orca Group, undivided (Tovs, AN002; BG002; CV003; Tosv, Tots, CV002) 952 40 Toc Conglomerate of the Orca Group (AN002; CV002; CV003; VA002) 953 40 13 Toss ORCA GROUP: Dark-gray to black siltstone, mudstone, and minor fine-grained sandstone (Toss, BS004; SR004) 960 40 TKghc Ghost Rocks Formation, coherent (Tgc, KD006; KG006) 961 40 14 TKghs Ghost Rocks Formation, sandstone-rich unit, undivided (Tgs, KD006; KG006; TI005) 962 40 15 TKgha Ghost Rocks Formation, argillite-rich unit, undivided (Tga, KD006; KG006; TI005) 999 7 fg Rocks within major fault zones; may be cataclastic or mylonitic, variable ages depending on fault and country rocks (TN007) 1000 365 Tvu Tertiary volcanic rocks, undivided (Tv, AN002; CG002; DI002; DI005; IL002; TK002; TY003; Tvv, HE002; Tr, NL003; Tvs, TL002; Tvs, Thi, TY005; Ta, Czab, GU002; Tf, TC002; Tvu, CB003; CG004; PM002; TKv [part], MZ002) 1001 365 14 Trs Rhyolitic volcanic and sedimentary rocks (Tw, EA002; Tvs, TN002; Tv, TN003; Tr, RM002; TKv [part], MZ002; Trp, CG002) [Overprint pattern 14] 1002 365 15 Tda Dacite (Tr, NL003; Kv, BT002; MZ004 (part); Td, Thr, UL002; Tda, CG002) [Overprint symbol 15] 1003 365 14 Ta Andesite; on map I-1685 unit Tau was subdivided for Alaska Peninsula map depending on location (Tvf, LC002; Ti, EA002; Tau, UG004; Ta, CG002) [Overprint pattern 14] 1004 365 13 Tb Basalt (Tb, CG002; EA002; FB002; LG002; LH004; SM002; Tm, TC002; Tgs, AD004; Tkb, Tb, AD005; QTb, BT002) [Overprint pattern 13] 1010 237 13 Thf Hypabyssal intrusive rocks of uncertain age (Mt. Katmai, Riehle and others, 1987; Tid, Tids, MG002) [Overprint pattern 13] 1011 237 13 Thf Hypabyssal felsic and intermediate intrusions. Age range Paleocene to Miocene, mostly Early Tertiary or Eocene? (unit Ti, AN002; Tf, BD002; Tif, MG002; TK002; VA002; Tvif, HE002; MM002; Th, MC002; TY002; Tp, NB002; Td, SV002; Tf, PzpCi, EA002; Ta, BN002 1012 345 Thm Hypabyssal mafic intrusions. Age range varies, includes Miocene to Paleocene (Tim, TJis, AN002; MG002; TK002; Tvim, HE002; MM002; Td, LH003; Tui, UN002; no unit label, IL002; Tia, MG002; d, AD003; Tp, AD006; Tm, SO002) 1022 76 Thd Hornblende dacite of Jumbo dome and Dacite of Cape Saint Elias (HE002) 1023 76 Talb Alkalic basalt flows and pyroclastic rocks (Ta, NI003) 1024 76 Thb Paniau, Waimea Canyon, and Waianae Volcanic Series, tholeiitic basalt, olivine basalt and oceanite (Tp, Tw, KA004; Twu, Twl, OA003) 1025 76 Tib Intricate Basalt (Tib, IL002; Tvb, RM004; Ta, Tbn1, Tb, NI003; Tw, TA002; QTb, TA003; v, TA012) 1030 76 13 Tpgu Gibraltar Lake Tuff, Upper member (Tglu, IL002) [Overprint 13] 1031 76 14 Tpgl Gibraltar Lake Tuff, Lower member (Tgll, IL002) [Overprint 14] 1035 76 13 Twca Waimea Canyon volcanic series; Makaweli Formation ash and tuffaceous soil (Twma, KA003) 1036 76 14 Thc Waimea Canyon and Waianae Volcanic Series, cinder, spatter, or littorial cones (Twc, KA004; Twuc, Twlc, OA003) 1040 76 Twl Wrangell Lava, Pliocene to Oligoocene lower part, undivided (Tsb, Tsp, Tsf, Tcc, Twl, Tbc, Tm, Tvu, Tsl, Tsm, Tsu, Tbpa, Tba, Tbl, Tol, Trl, MC003) [Overprint symbol 15] 1041 76 15 Twr Wrangell Lava, rhyolitic rocks, undivided (Trt, Tpf, Trp, Tsa, MC003) [Overprint symbol 15] 1042 76 12 Twor Wrangell Lava, obsidian-bearing rhyolite flow (Twr, MC003) [Overprint symbol 12] 1043 76 16 Twd Wrangell Lava, dome and hypabyssal rocks (Th, MC100; Tsd, Tr, Tdh, Tdr, Trr, MC003) [Overprint symbol 16] 1045 345 Thgm Paniau, Waimea Canyon, and Waianae Volcanic Series, small mass of gabbro (Tpi, Twi6, KA004; Twi3, OA003) 1050 420 Tv Miocene volcanic rocks (Tv, CB003; Tmv, PM002; QTc, RI005; includes unit Tva, Miocene volcanic rocks on Mt. Katmai map, Riehle and others, 1987) 1051 420 Tab Miocene and Pliocene andesite and basalt (Ta, AD002; Tad, MK004; Tab, UG002; Tau, UG004; Tg, CG002) 1052 420 Tba Miocene basaltic andesite (Tb, ID002) 1053 237 15 Tdi Miocene and/or Pliocene hypabyssal dacite and rhyolite intrusions, includes unit Tdp, Dacite plugs on I-1229; rhyolite and dacite dikes and sills (Tif, GO002; HG002; NG002; Tf, TA003; Tmd, PE003; Tdp, CG002; Td, CV003; MS002; UG002; MI002) [Overprint sym 1054 420 14 Tmrf Rhyolite (Tfv, BC003;Tdr, PE002) [Overprint symbol 14] 1055 420 16 Twp Wrangell Lava, hypabyssal and plutonic rocks (Tp, NB002; NB007; NB108; Tdd, Tdqd, MC003; Tp, MC002) [Overprint symbol 16] 1056 420 Tmb Olivine basalt flows and cinder cones (Tb, YFB) 1059 420 15 Tcv Cenotaph Volcanics, undivided (Tc, MF003; Ta, SI005) [Overprint symbol 15] 1060 420 15 Tav Admiralty Island volcanics, undivided (Tc, MF003; Ta, SI005) [Overprint symbol 15] 1061 420 14 Tar Admiralty Island and Cenotaph Volcanics, rhyolite (QTv, PA003; QTr, PA003; PE002: PE003; Tar, SI005) [Overprint symbol 14] 1062 420 16 Tavd Admiralty Island and Cenotaph Volcanics, dacite (Tmd, PA003; QTf, Tmd, PE003) [Overprint symbol 16] 1063 420 16 Tava Admiralty Island and Cenotaph Volcanics, andesite (QTa, PE003; Taa, SI005; Tsan, SK002) [Overprint symbol 16] 1064 420 Tavb Admiralty Island and Cenotaph Volcanics, basalt (Tb, BC003; QTb, PA003; PE002; PE003; Tavb, Tab, SI005) 1065 420 44 Tavc Admiralty Island and Cenotaph Volcanics, volcaniclastic rocks (QTc, PA003; PE002; PE003; Taft, Tavc, SI005) [Overprint symbol 44] 1066 420 16 Tlp Lavas and pyroclastic deposits, most likely Miocene or younger Tertiary (Tvl, Tvp, Tvu, GI003; Tp, GI005; Tt, Ttb, Tvl, AD006) 1070 413 Tvr Crystal and crystal-lithic ash-flow tuff (units Tv1, Tv2, Tv3, Tv4, Tv5, LH002; Tvt, IL002; DI005; Tr, SL002) 1080 413 Tpb Volcanic rocks, including basaltic breccia, tuff and a few pillow lava flows; Vega Bay Formation. Also, volcanic rocks of Poul Creek Formation (Tv, KK002; Tpv, CV002; CV003; MI002) 1081 413 Tvb Meshik Volcanics (Formation); Mt. Galen volcanics; Ship Creek, Windy Fork, and Terra Cotta volcanic fields, McGrath (Tm, CG002; CG004; PM002; UG002; UG004; Tvg, MM002; Tvt, Tvld, Tva, Tvd, Tvvd, Tvab, Tvlr, Tvgt, Tvl, Tvf, Tvm, MG002; Tvba, Tvr, IL002; T 1082 413 Tvb Basaltic lavas of the Meshik volcanic arc (MK004; QTb, PE002; PE003) 1083 413 Tvm Andesitic and dacitic rocks of the Meshik volcanic arc (MK004; Tau, UG004; QTa, PE002; PE003) 1084 365 Tap Andesite plug dome (Tap, CG002) 1085 365 Tp Popof volcanic rocks, only in Shumagin Islands = Meshik (Tp, PM002) 1086 413 Tvrd Rhyolitic to dacitic volcanic rocks (QTr, QTv, PE002; QTr, QTf, PE003) [Overprint symbol 13 1087 365 15 Tvc Chiefly block and ash deposits, mafic to felsic tuff, tuff breccia, lapilli tuff, and unclassified pyroclastic deposits (Tvr, IL002) [Overprint symbol 15] 1090 Tmd Mafic dikes, sills, and plugs (Tm, CV002; CV003; QTd, PE002) 1094 365 44 Tkv Krugoli Formation, lava. (TMzkb, AT004) [Overprint symbol 44] 1095 365 16 Tka Krugoli Formation, tuff and tuff-agglomerate. TMzkt, AT004) [Overprint symbol 16] 1096 461 44 Tbv Basement rocks, including basaltic, spilitic, and keratophyric lava and tuff. Pillow lava very common, western Aleutian Islands (TMzv, AT002; TMzl,TMzt, AT004) 1103 413 Tvab Andesite and basalt flows (Ta, NL003; NR002; UL002; Tm, HC002; Roundabout Mtn. volcanic field, KT002; KT003; part TKv, MZ002; MZ004; Khf, SM006) 1110 413 13 Tver Moderately altered rhyolite flows, Nukluk Volcanic Field (Tnr, BH002) 1111 416 Tvnb Massive basalt and andesite, Nukluk Volcanic Field (Tnba, BH002) 1112 413 Trd Rhyolitic and dacitic tuff (44 Ma) (Tbr, DI005) 1120 413 16 Tvep Tuff and breccia, Eocene or Paleocene (Tt, UL002; Tv, GO002; Tr, ST002; Tfu, HC002; Tv, HG002; NG002; TA003) 1121 413 15 Tvei Felsic hypabyssal intrusions [within unit Tfu of HC002] (Tfi, HC002) [Overprint symbol 13] 1125 413 14 Tbep Mafic basalt, layered tuff, tuff breccia and breccia (Tv, MS002; Khc, SM006) [Overprint symbol 14] 1130 174 16 Tvig Intermediate to felsic biotite tuff (Tvi, DI005) [Overprint symbol 16] 1135 416 Tov Orca Group, volcanic rocks, undivided, Paleocene and Eocene? (BG002; CV002; CV003; VA002; Tog BS004; Tog, Tod, SR004) 1136 416 14 Top Orca Group: Pillow basalt (Top, Tops, BS004; CV002; SR004) 1140 416 Tcv Cantwell Formation, volcanic rocks subunit (Tcv, HE002; Tv, MH002) 1145 416 13 Tsr Soda rhyolite and basalt (Tsr, SL002) [Overprint symbol 13] 1150 416 Tgva Ghost Rocks Formation, andesitic volcanic and hypabyssal rocks (Tgva, KD006) 1151 416 14 TKgvb Ghost Rocks Formation, basalitic volcanic and hypabyssal rocks (Tgvb, KD006) 1200 279 Tiu Tertiary intrusive rocks, undivided (Tiu, CB003; CG004; PM002; UG004; Ti, CG002; MK002; UG002; Thi, MK004; Ti, Tg, RM002; Tp, TC002; Ti, KN002; TA015) 1203 174 Tagr Albite granite (Tgr, AT002; Ti13, LC002) 1205 174 Tgd Granodiorite, undivided (on Mt. Katmai map, Riehle and others, 1987; Ti, IL002) 1206 279 13 Tqd Quartz diorite, undivided (on Mt. Katmai map, Riehle and others, 1987; Ti, PE002) 1207 423 Tgb Gabbro and diorite, undivided (Td, AT002; AT004; Tg, KK002; Tm, RM002; Tgb, TC002; Tgd, Togb, SR002; Tgb, Togb, SR004; PPag, AD002) 1208 279 Tsy Syenite of Mount Fairplay (unit Ts, TC002) 1210 279 Tiv Granitic and volcanic rocks, undivided. Age range Oligocene to Paleocene (unit Tgrv, HE002) 1234 94 14 Twh Wrangell Lavas, shallow plutons, chiefly dacite, diorite, and quartz diorite (Th, MC006) [Overprint symbol 14] 1250 94 Ti late Miocene and Pliocene granitic intrusive rocks of the Agripina Bay, Moss Cape, American Bay, and Devils batholith and other similar age plutons, (Ti, CB003; PM002; MK002; Tg, MC002; Tdp, UK002; Tg, UN002; part gd, AD003; Tqd, CG002; UG002) 1251 94 Tmgr Granite and granitic rocks (Tgr, BC003; Tmae, Tmge, Tmaz, Tmgk, Tag, PE002: Tmae, Tmge, Tmgk, PE003; Tge, CR010) 1252 94 13 Tmog Biotite quartz monzonite (Tqm, KC002; Tnme, PE002; PE003; Tme, CR010) [Overprint symbol 13] 1253 273 Td Diorite, (Tgd, UN002; Tdqd, Tdd, MC003; Tmdk, Tqdz, Tmqe, PE002; Tmdk, PE003) 1254 315 Tgg Gabbro, (Tgg, UN002; Tgb, BC003; KC002; Tgbk, PE002; Tmgb, PE003; Tlgb, CR010) 1270 273 Togr Granitic rocks (Tmg, AN002; Twf, TKqc, Tnep, LH002; Tnep, LH004; Tsxr, TY003; TY005; Twg, MG002; Ti19; Ti18, LC002) 1271 273 16 Togp Granite and quartz monzonite porphyry (Tgp, KC002) [Overprint symbol 16] 1273 273 15 Togd Granodiorite and quartz diorite (Ti, MC002; MS002; Tg, SR004; Tgd, MK002) 1275 273 13 Toqd Quartz diorite and diorite (Tqd, IL002; MK002, MK005; Ti15, Ti14; Ti16, Ti6, LC002), LC002) [Overprint pattern 13] 1276 315 348Togb Gabbroic rocks (Tgn, MF002; gbc, gbh, gbm, gbp, Kbgb, MF003; Tgbp, MF009; Tgb, MS002) 1285 273 14 Top Oligocene basalt plug (Tbp, CG002) [Overprint symbol 14] 1290 180 Toegr Granitic rocks (Tmpb, Ttg, Tsf, Tsc, Tgd, Tus, Tcpi, LH002; grsg, MH002) 1292 423 Toem Granodiorite to tonalite (Tmpg, Ttg, Tjc, Tsr, Tt, Tmr, LH002; Tf, TL002; part Tgr, McGonagall, Eielson, and Wyoming Hills plutons, MM002; part gd, AD003; Ti, GI004) 1293 423 15 Toed Oligocene and Eocene diorite (Td, CG002; Mafic phase, Miners Bay pluton, Tmm, AN002; Tmb, AN004) [Overprint symbol 15] 1300 177 Tegr Granite and granodiorite, Tertiary(?) Eocene? (Tgr, HC002; HE002; VA002; MG003; Tgg, AN004; BG003; SR002; Tg, BG002; CV003; SM002; SV002; Tp, ID002; Tgd, TK002; MG002; Ti, TY005; Ti17, Ti12, Ti4, LC002; Tiu, LH002; Tgg, CV002; Tgq, KC002; TKi, TY003) 1301 177 Tfd Felsic intrusions, leucocratic dikes, sills and small stocks, south of Border Ranges fault (AN002) 1302 177 Tegr WHITE PASS PLUT. PROV.: Biotite granite and sphene-biotite granite (Tegr, SK013) 1305 177 13 Tegd Coast Plutonic Complex (Tgq, KC002; Tgdp, Tgrg, PE002; Tgdb, PE003; Tegd, PE004; SD005; Tgdb, Tlg, BC002; Tgq, Tlg, BC003) [Overprint symbol 13] 1307 177 Tgmp Quartz monzonite, monzonite breccia, and quartz porphyry (unit Tqm, LH004; MG002; MG003) 1308 237 14 Teqd Quartz diorite (Tqd, MS002) [Overprint symbol 14] 1309 177 14 Tgdp Porphyritic granodiorite distinctive phase of Coast Plutonic Complex (TKgq, BC003; Tg, Tdr, KC002; Tgdg, Tgdp, PE002; Tgrg, PE003; Tewgd, Test AL003) [Overprint symbol 14] 1310 177 Tet Tonalite (Tt, VA002; Tt, MF002) 1318 315 13 Tgn Gabbronorite and norite (Tgn, SI004) 1320 237 Tg Granitic rocks, including early Tertiary granitic intrusive rocks of the Kodiak, Shumagin, Semidi, and Sanak Islands (Tg, BD002; CB003; CG004; KH003; PM002; TN002; TY002; TY004; TY005; UL002; Tgd, CG002; KD006; Tqm, KD004; KD002; KG002; TI002; Tial, BH00 1325 237 16 Tpgr Granite, aplite and related rocks including peralkaline granite (Ti3, LC002) 1350 273 238Thgd Granodiorite of Mount Estelle; Biotite-hornblende granodiorite, (Ticp, BH002; Ti9, Ti8, Ti7, Ti2, Ti1, LC002; Tm, LG002; Tse [Unnamed Quartz diorite pluton], Tme, LH002; TKqm, MG002; Thgd, KN003; Tgd, TY002; MG003; Te, TL002; TY003; TY005; Tme, Tn, TY003 1370 372 Tim Dark-colored dikes and sills consisting of diabase, basalt, dioritic and gabbroic mafic intrusive rocks (Ti, PE002; Tod, SR002) 1375 372 Tou Orca Group ultramafic rocks (Tou, SR002) 1380 372 Tgl Hornblende and pyroxene-hornblende gabbro (Tmu, CV003; Tgl, LH002; Tgb, MG002; Ti5, LC002) 1410 634 Tgma Cottonwood Creek Complex, gniess and amphibolite (unit Tc, NB002) 1420 634 13 Togs ORCA GROUP: Greenstone and sedimentary rocks (Togs, BS004; SR004) 1450 177 15 Tcpm Leucocratic granodioritic migmatite of the Coast Plutonic Complex (Tlgm, BC002; PE002) [Overprint symbol 15] 1451 177 16 Tcpm2 Another damn Coast Plutonic Complex migmatite (Tgdm, PE002; Tmgz, Tmgy, PE003; Temg, PE004; SD005; Tgd, BC002; TKlg, MzPzmg, BC003; Tesm, AL003) [Overprint symbol 16] 1510 749 TKcg Conglomerate, sandstone, and lignite (TKd, EA002; TKs, UL002; CY002; Kr, TC002) 1515 915 16 TKpc Prince Creek Formation, shelf deposits (TKpc, UT003) [Overprint symbol 16] 1518 749 16 TKcf Canning Formation, basinal turbidite deposits (TKc, BA002; DP004; ML002) [Overprint symbol 16] 1520 749 TKcs Conglomerate and sandstone (TKs, TKc, BN002; SO002) 1525 749 15 TKcm Marine and nonmarine conglomerate to shale (TKs, DP002; TKsc, DP004) 1530 749 Tk Krugoli Formation, undifferentiated (TMzk, AT004) 1540 749 13 Tkc Basement rocks - coarse-grained and conglomeratic sedimentary rocks (TMzkc, AT004) [Overprint symbol 13] 1550 915 TMzu Basement rocks - undifferentiated (TMzu, AT004) 1552 915 16 TMzf Basement rocks - fine-grained sedimentary rocks. (TMzf, AT002) [Overprint symbol 15] 1553 915 15 TMzc Basement rocks - conglomerate, argillite, siltstone, and chert. (TMzc, AT004) [Overprint symbol 15] 1600 126 TKv Extrusive rocks, flows, tuff, and breccia (TKvt, MG002; RM003; TKv, MD002; OP002; SL002; TKva, OP003; RM004; TKe, TKuv, RM002; TKv, RM003; MM002; TKu, UL002; Mzmu, TC002) 1601 126 15 TKd Dikes and subvolcanic rocks (TKd, OP002; SM002; TKd, TKa, TE002; d, NB002; TKi, TL002) [Overprint symbol 15] 1602 126 16 TKgp Hypabyssal granite porphyry dikes, sills, and plugs (TKgp, ID002; TKf, CI002; Khi, HU002; TKd, LH002; TKi7, LC002; Tkr, SM002; TKdf, RM004) [Overprint symbol 16] 1603 126 13 TKvr Volcanic rock, light gray to pink rhyolite (TKr, BV002; SM002; UL002; TKvf, MG002; TKst, TKsr, TKer, TKtb, BH002; TKv, BT002; KH003; KH004; TKf, TKr, KH002; TKnr, TKnf, TKvs, MD002; Tr, BH003; TKd, RB009) [Overprint symbol 13] 1604 126 13 TKvd Volcanic rocks, dacite (TKv, TN002; TN003; TKvd, MG002; TKtd, BH002; TKvi, RM004) [Overprint symbol 13] 1605 126 14 TKvi Younger phase of Iditarod Volcanics and similar units (TKy, TKil, ID002; TKa, KH002; RB009; UL002; TKvm, MG002; TKea, TKsa, BH002; Tv, BH004; TKn, MD002; TKv, RB004) [Overprint symbol 14] 1615 126 TKv Felsic tuff (TY004; TY005) 1620 126 15 TKd Rhyolite-andesite plugs and domes (TKp, ID002; TKv, Kh, MZ002) [Overprint symbol 15] 1625 126 13 TKvr Felsic volcanic rocks (TKvf, SM002; Tf, BH004; TKv, BN002) [Overprint symbol 13] 1630 129 TKiv Mafic to intermediate volcano-plutonic complexes (TKc, OP002; MD002; TKv, SM002) 1631 129 13 TJb Basalt and andesite, Whitefish Lake volcanic field (TJwl, RM003; TJb, RM005) 1635 129 TKmv Flat-lying to gently dipping mafic flows of andesite and basalt, and volcaniclastic deposits of andesitic and basaltic tuff and conglomerate (TKm, ST002) 1640 372 TKum Mafic and ultramafic intrusive rocks including pluglike body of augite andesite porphyry and a small dikelike body of augite peridotite (TKi, HU002) 1641 372 TKmd Mafic dikes (TMzm {northern half of quadrangle}, EA002; part TKd, LH002; TKsa, MD002; TKd, ID002; TKm, MG002; TKda, TKdm, RM004) 1650 187 14 TKi Intrusive rocks (TKi, NR002; RB002; TL002; TY003; TY005; TKg, SM002; TKiu, Tgdn, LH002; gr, MM002; TKcm, MD002) [Overprint symbol 14] 1655 244 TKg Granitic rocks (TKg, AN002; BD002; CI002; CY002; GO002; HG002; ID002; KT002; LG002; MD002; NG002; RB009; TA015; TN003; Kg, TKg, RB004; TKif, TKik, BH002; Tg, BH003; DI002; TA002; TA003; TA005; Mzi, FB002; TKgr, HE002; MM002; TKg, TKkm, LH002; TKf, TKqm, 1656 244 13 TKgr Granite and alaskite (TKga, DI005; TKi10; TKi11, LC002) 1657 244 15 TKgs Syenitic rocks (TKgn, DI005; Tg, DI002) 1658 244 16 TKgm Quartz monzonite and quartz monzodiorite (TKpsw; TKpe; TKgnw, DI005; TKi5, LC002; TKqm, LC012) 1660 205 TKm More mafic granitic rocks, tonalite, monzonite (TKt, AN002; TKt, TKgr, TK002; TKin, BH002; TMzg, EA002; TKm, ID002; LG002; MD002; MD003; OP002; OP003; TKi, IL002; TKig, LH002; md, grn2, MH002; TKi14, TKi13, TKi12, TKi9, TKi8, TKi4, TKi2, LC002; TKsym, R 1662 205 15 TKtf Foliated tonalite sill of Coast Plutonic Complex (TKfg, TKfq, KC002; Tto, PE002; Ttos, PE003; PE004; SD005; Tto, BC002; TKq, BC003; TKtf, AL003) {Overprint symbol 15] 1663 205 TKtm Tonalite migmatite of the tonalite sill of the Coast Plutonic Complex (Ttom, PE002; Tmgx, PE003; TKtmk, TKtm, AL003) [Overprint symbol 16] 1665 244 14 TKqd Granitic unit 3, quartz diorite and diorite dikes, stocks, and small plutons (TKip, TKie, TKig, BH002; TMzd, EA002; grn3, MH002; TKi6, TKi3, TKi1, LC002; TKqd, TKqd1, TKqd2, TY005; TKip, RM003) [Overprint pattern 14] 1670 667 TKgb Gabbro and dark-colored dikes and sills consisting of diabase, basalt, dioritic and gabbroic mafic intrusive rocks (Tim, GO002; HG002; TKmg, TKtp, TKm, TKpg, LH002; TKlg, TK002; TKm, TY005; TKg, ST002; Tm, BH004) 1676 205 14 TKtp Trondhjemitic pegmatite (TKp, KC002) [Overprint symbol 14] 1680 667 TDg Gabbro, undifferentiated, Tertiary to Devonian age (TDg, MD002; RB009; TMg, OP002) 1681 644 TJgd Gabbro and diorite, Tertiary to Jurassic age (TJgd HC003; RM005) 1682 644 TJm Mafic intrusive rocks, Nyack terrane (TJd, HC003; RM005) 1690 644 TKl Lamprophyre, alkali gabbro, and alkali diorite (la, MH002) 1710 187 15 TKc Cataclastite (AN002) [Overprint symbol 15] 1720 187 13 TKgg Gneissose granitic rocks (unit gg, MH002; TKgs, LH002; Tsmg, TK002) [Overprint symbol 13] 1780 416 16 TKgh Ghost Rocks (Tpe, KD002; Tgh, KD003; Tgm, KD006) [Overprint pattern 16] 1790 416 15 TKmx Orca Group melange (TKm, VA002) [Overprint symbol 16] 1800 745 Ksu Cretaceous sedimentary rocks, undivided () [Reassigned to other units] 1805 797 Knb Undivided marine and non-marine shale and siltstone 1810 745 Kca Chert and argillite (unit Kc, RB002) [Not used, see 6080, 3850] 1815 800 Kcc Limestone conglomerate (unit Klc, CA002; Kcc, NR002) 1816 800 238Kccc Conglomeritic facies of a mixed sequence of calcareous graywacke, calcareous mudstone, volcanic graywacke, and volcanic conglomerate (on unit Kcv, CA003; or on unit Kcc, NR002). [Overprint pattern 238] 1820 968 Kcvg Calcareous graywacke and mudstone, volcanic graywacke, and volcanic conglomerate (Kcc, Kcv, CA002; Kcvg, NR002; Kg, UL002; Kv [part], SH003, SE004) [Overprint pattern 13] 1821 797 708Kcg Calcareous graywacke and micaceous, calcareous mudstone turbidite deposits (Kcg, CA002; Kct, NR002) [Overprint pattern 708] 1822 800 15 Kcc Nonmarine and marine carbonate-rich conglomerate and sandstone deltaic deposits (Kcv, CA002; Kcc, NR002; Kv [part], SE004) [Overprint pattern 15] 1823 797 238Kcgc Conglomeritic facies of carbonate-rich sandstone, siltstone, and shale turbidite deposits. (on Kct, NR002) [Overprint pattern 238] 1905 851 13 Ksh Shale and siltstone (OP002) [Overprint symbol 13] 1906 851 14 Ksa Sandstone, Late Cretaceous (OP002) [Overprint symbol 14] 1907 851 15 Kvss Volcaniclastic sandstone (OP002) [Overprint symbol 15] 1912 749 Kshf Shumagin Formation (Ks, CB003; PM002) 1913 745 14 Kh Hoodoo Formation (Kh, CG002; CG004; PM002) 1916 749 14 Ksmd Shumagin Formation, mudstone member (PM002) 1917 749 Kkd Kodiak Formation (Kkd, KD002; Kk, KD003; KD004; KD006) 1920 800 13 Kcs Cantwell Formation, sedimentary rocks subunit (Tcs, HE002; MM002; Ts, TL002) [Overprint symbol 13] 1930 745 Ksb Schrader Bluff Formation (Ksbl, UT003) [Overprint symbol 14] 1931 745 Ksbu Schrader Bluff Formation, upper member (Ksbm, UT003) 1932 745 Ksbm Schrader Bluff Formation, middle member (Ksbm, UT003) 1933 745 Ksbl Schrader Bluff Formation, lower member (Ksbl, UT003) 1940 851 Kk Late Cretaceous undifferentiated clastic rocks (Ku, MC002; Kss, MD002) 1941 848 16 Kss Non-marine sandstone, quartz conglomerate, shale, and siltstone (Ks, MZ002; NB002; RB004; RB009; TKs, MC003) [Overprint symbol 16] 1942 851 Kk Limy volcaniclastic sandstone (Kls, OP002) 1943 797 16 Kshn Non-marine shale, siltstone, and sandstone (Ks, KW002; HP002; SC002; HC002) [Overprint symbol 16] 1955 745 15 Kkg Kaguyak Formation (Kk, MK002; IL002) [Overprint symbol 15] 1960 754 13 Kc Chignik Formation (Kc, CG002; CG004; PM002; UG002; UG004; Ks, GO002; HG002; NG002) 1961 754 15 Khc Chignik and Hoodoo Formations, undivided. Also includes Late Cretaceous rocks called Kaguyak Fm. on the west side of Cook Inlet in the Seldovia quad (Kk, SV002; Khc, UG002; UG004) 1970 851 Kk Kuskokwim Group, sandstone, siltstone, shale, and conglomerate (Kk, DI005; GO002; SM002; TA002; TA003; TA004; TA015; Kku, LH003; Kss, Kcs, LH004; Kks, ID002; RM002; Ksu, MD002; Ku, Kss, OP002; TKhf [part], Kcs, Kss, Kls, Kus, Ksh, MG003; Kkcf, Kkmf, Kkmc 1971 851 13 uKss Fine sandstone, siltstone, and shale, Kuskokwim Group [Overprint symbol 13] 1980 754 16 Kms Minto unit, siltstone, mudstone, graywacke, quartzose sandstone, plant fragments, Late Cretaceous(?) (Km, LG002) 1985 851 16 Kkn Kuskokwim Group, nonmarine to marginal marine quartzose sandstone and siltstone (Kkq, ID002; Ksc, MD002; OP002; Kqs, Kqcs, Kqvs, LH004; Kqs, Kqcs, MG003; Kkcd, Kkbc, BH002; Kkcd, RM003; Ksl, RM004; Kka, TA002) [Overprint symbol 16] 1990 848 14 Kqc Quartz-pebble conglomerate, early Late Cretaceous (MZ002; BT002; HU002; Knc, SE002; Kq, SH002; SP002; Kb, CH002) [Overprint symbol 14] 1995 797 14 Ktu Tuluvak Formation (Ktu, UT003) [Overprint symbol 14] 2010 800 Km Matanuska Formation, fossiliferous marine shale, late Early Cretaceous to Late Cretaceous (Km, AN002; TK002; GU002; Kmu, Kml, VA002; Ks, GU101) 2020 848 Kme Melozitna group, informal name; Shaktolik (sp) Group (abandoned name), graywacke, shale, grit, and conglomerate (Ks, ID002; MA002; OP002; RM002; Ksu?, NL002) 2021 848 Kme Sandstone, shale, and conglomerate deltaic deposits (Ksu, NL003; Ks, BI002; NI002, NI003; NR002; UL002; Kn, Knm, KT002 [see also 2180]) 2023 800 348Ksi Rhyolite and dacite, and sandstone, shale, and conglomerate deltaic deposits and intricately intruded areas of volcanic graywacke and mudstone, late Early Cretaceous (Albian) (TKrs, UL002; Kvc, NR002; TKic, RB009) [Overprint symbol 348] 2024 848 238Kccf Undifferentiated sedimentary rocks -- conglomerate facies (NL004) [Overprint symbol 238] 2030 848 15 Kcg Igneous pebble-cobble conglomerate (Albian and Late Cretaceous?, unit Kc, MZ002; HU002; RB004; SE002; SH002; SP002; Kic, BT002; Kmc, RB009) [Overprint symbol 15] 2040 848 13 Ksb Seabee Formation (Ks, UT003; Kh, DP004; ML002) [Overprint symbol 13] 2070 848 13 Knf Nanushuk Formation, includes former Kukpowruk, Tuktu, Grandstand, Corwin, Chandler, and Ninuluk Formations, now abandoned (Knc, Knt, KL002; Kn, UT003; Ka, DP004; ML002) [Overprint symbol 13] 2071 848 16 Knu Nanushuk Formation, upper part (Knu, UT003) 2072 848 14 Knu Nanushuk Formation, lower part (Knu, UT003) 2080 800 14 Kto Torok Formation, Aptian to Cenomanian (Kto, KL002; UT003) [Overprint symbol 14] 2081 800 16 Ktfm Torok and Fortress Mountain Formations, undivided, Aptian to Cenomanian (Ktfm, HW003) [Overprint symbol 16] 2100 745 708Knl Early Cretaceous Nelchina Limestone (Ksu, TK00) [Overprint symbol 708] 2101 803 Ksse Marine sandstone and siltstone, Early Cretaceous (Ksm, NR002; Km, KT002; Kg, Km, NL003) 2102 803 14 Kgcg Calcareous graywacke and conglomerate (Kcg, GO002) [Overprint symbol 14] 2105 983 Kvgm Volcanic graywacke and mudstone, late Early Cretaceous (Albian) (unit Kgm, MZ002; RB004; Knm, eastern map area, KT003; Kg, NL003; CA002; Kls, KW002; SC002; Kv, SE002; ST002; KJcs, TN002) 2106 63 238Kvcc Conglomeratic facies, Volcanic conglomerate and breccia (Kvg, CA002; Kcv, CA003; Kvc, NR002)[Overprint symbol 238] 2110 745 Kbc Berg Creek Formation (Kb, Js, VA002; Ks, VA007; Kl, BG002; MC002; Kbc, MC100) 2115 793 238Kwcf Early Cretaceous flysch, Wilber Creek unit (Kts, BH002; KJqa, Kwcf, CI002; Kka, CY002; Kwcc, Kwcs, LG002; Kwc, Kwcq, TN003; KJgs, KH002; KJcs, KH003) 2120 745 16 Kp Pedmar Formation, Albian (Kp, MK002) 2122 803 Kkd Kandik Group equivalent, Mount Goodenough in Yukon? 2124 803 13 Kkt Kandik Group; Kathul Graywacke (Kka, CY002) 2125 745 13 Ksm Quartz-carbonate sandstone and pebbly mudstone, Early Cretaceous, Valanginian-Aptian (Kqc, MD002; Kb, GO002) [Overprint symbol 13] 2126 803 15 Kba Biederman Argillite, Kandik Group, Valanginian (Kb, CY002) [Overprint pattern 13] 2127 745 13 Kko Kongakut Formation, pebble shale and siltstone (Kk, Kk?, AC002; DP002; DP004) [Overprint symbol 13] 2128 803 16 Kps Pebble Shale unit (Kp, DP004; ML002) 2130 793 Kcct Cape Current terrane (Kc, KD004) 2135 909 15 Kkq Keenan Quartzite, Kandik Group, Valanginian (unit Kk, CY002; Kq, BR002; Kke, ML002) [Overprint pattern 15] 2140 803 16 Karg Argillite, Early Cretaceous(?) (Ka, CY002) [Overprint pattern 14] 2145 803 14 Kus Unnamed sandstone along Nation River, stratigraphically below Keenan Quartzite (Ku, CY005) [Overprint symbol 14] 2150 848 708Khe Herendeen Formation or Limestone on some maps; (Khe, CG002; CG004; PM002; MK005; Klg, GO002) 2151 848 708Kli Limestone, Early Cretaceous(?), primarily Inoceramus prisms (Kl, CY002) 2152 803 Km Marine mudstone and sandstone (Kgm, KT002 [201]; Kcs, KW002; MA002; NL003 [303]; SC002) 2170 909 Kuc Ungalik Conglomerate (unit Ku, RB002; NL002) [Not used] 2175 909 Kst Staniukovich Formation (Ks, PM002; UG004; Kst, CG004; MK005; KJs, CG002; Js UG002) 2180 983 Kvm Earliest Cretaceous volcanic graywacke and conglomerate (Kvs, BH002; Kgm, BT002; HU002; Kvg, MD002; NR002; RB009 [According to Patton, oral commun., 1997]; Kvg, Kvm, Kcv, CA002; Kg, UL002; Kcg, HU002; Kv, SH002; Kgs, Knm, KT002; Kvg, NR002; Kg, NL003; UL 2181 983 Kvm Earliest Cretaceous volcanic conglomerate (KT002, shown as part of unit Kgs - 2180; KT002; Kcvs/Kcs, MD003; OP003) 2182 793 Klvm Earliest Cretaceous volcanic conglomerate (Kvg, MD002; OP002) 2184 979 13 Kfm Fortress Mountain Formation, interbedded wacke and mudstone (Kfw, DL002; DL003; DL004; Kfwc, DL004; KKy, DL005; Kfm, Kfcg, Kfs, KL002; Kb, DP004) [Overprint symbol 13] 2185 979 16 Ko Okpikruak Formation and may include Fortress Mountain Formation, interbedded wacke and mudstone (Kfo, Ko, Ko1, Ko2, Ko3, Kit1, DL002; DL003; DL004; Koc, Koc1, Koc2, DL003; DL004; Ko4, Koc3, Koc4, DL004; Ko, Ko1, Ko2, Ko3, Ko3e, Ko4, Ko4n, Ko5, MU002) [Ov 2186 979 708Kofc Coquina limestone of the Okpikruak Formation (c, HW003) 2190 602 Kmk McHugh Complex, Uyak Complex, melange (Mzm, AN002; BG002; Ku, KD004; Kbc, KJm, VA002; KJm, KN003; KPm, KPms, KPmc, SV002) 2191 602 14 Mzpg Phyllite/greenstone melange; occurs structurally between the McHugh Complex and Valdez Group (Mzpg, BG002) 2192 602 Kmar Melange south of McKinley Fault (Kms, HE002; DSga, TK002) 2193 602 708TrSl Melange south of McKinley Fault, limestone blocks ( (msl)Kms, HE002) 2195 602 Kmar Melange north of McKinley Fault (Kmn, HE002; wm, MH002 [same as Kmy and Kmz in Healy quad?, subdivided also on map]) 2196 602 708TrSl Melange north of McKinley Fault, limestone blocks ( (mnl)Kmn, HE002) 2197 423 13 Kmu Melange north of McKinley Fault, ultramafic rocks ( (mno)Kmn, HE002; Kuu, KD004) [Overprint symbol 13] 2210 124 348Kve Hypabyssal rocks, dacite and rhyolite porphyry (Ktr, BH002; Ki, HC002; KW002; MA002; Khe, SE002; Kfv, SH002) [Overprint symbol 348] 2220 124 44 Ksf South Fork Volcanics, locally columnar jointed, massive, densely welded, biotite-quartz-hornblende-feldspar crystal tuff (KSF, YFL002; YSL002; YTY002) [Overprint symbol 44] 2230 172 Kve Cretaceous basalt, local pillow flows, probably early Cretaceous (Kb, TY004; TY005) 2255 124 Kvl Andesitic subvolcanic rocks (Kva, HE002) 2256 124 Kvl Basaltic subvolcanic rocks (Kvb, HE002) 2260 124 Kvl Iditarod Volcanics and similar units, flows, tuff, and agglomerate (TKvm, RM004; Kkt, Kit, ID002; Kac, OP002; Kka, Kkv, ID002; Kkv, RM002; TKvit, TKa, TKvi, TKvip, TKpvm, TKgvm, TKvm, TKvv, TKvmi, SM003; Kvmp, Kvm, MG003; Ksl, Kvkr, Kvk1, Kvk2, Kvk3, Kvk 2265 124 14 Kvl Volcanic rocks, Kipchuk Volcanic Field (TKdt, TKat, TKgrt, TKft, TKvmi, SM003; Khtb, Khb, SM006; Ki, ST002) [Overprint symbol 14] 2280 516 13 Kvp Valdez. Group: Pillow basalt; in some areas, interlayered with subordinate pillow breccia and tuff (Kvp, BS004; SR004) 2320 124 15 Ktg Tuff, volcanic graywacke, and mudstone (Ktg, HU002; MZ002; Kv, UL002; Kts, GO002; Kv, HC002; KCgg [part], BH004) [Overprint symbol 15] 2330 124 16 Kve Andesitic volcanic rocks (earliest Cretaceous, Neocomian, but may include Albian) (Kv, MZ002; NL003; NR002; RB004; SL002; UL002; KJv, CA002; HU002; KT002; KW002; SE002; SH002; Kab, SH002; Kv, RB009) [Overprint symbol 16] 2335 172 Kbd Spilitic pillow basalt and diabase (SH002; KT004, see also2230) 2336 124 13 Kft Shoshonitic flows and tuffs (Kft, UL002) [Overprint symbol 13] 2340 124 13 Kcve Chisana Formation, andesitic flows and volcaniclastic rocks, also includes Gravina Belt volcanics in southeast Alaska, which may also be in part Late Jurassic in age (Kc, MC002; NB002; KJgv, KC002; KC005; KJsg, KJsv, PE002; Ksg, PE003; Tvh, Jgv, CR010) [ 2400 251 Kdg Dikes, granite to diorite (LG002) 2401 251 Kd Basaltic andesite dikes (Kd, SV002) 2405 251 348Kpg Pegmatite (Kpg, BN002) [Overprint symbol 348] 2410 251 Kgu Granitic Rocks (Kg, BV002; CA002; KH003; KT002; MA002; TN003; Kgr, HE002; NL003; Kag, HU002; PzpCg, EA002; part Mzg, TC002; Ku, KN009; Kcb, Knh, BN002; Kgu, BN002; SO002) [All ages] 2411 251 Kgt Tourmaline bearing granite (HE002) 2415 251 Kgc Contaminated granitic rocks; Dark, fine- to coarse-grained contaminated granitic rocks with abundant mafic schlieren (Kgc, BV002) 2420 251 Kgd Granodiorite (Kg, MZ002; Kgq, HU002; Ki13, Ki11, Ki10, Ki7, Ki3, Ki2, Ki1, LC002; Kg3, SH002; part Mzg, TC002; Kkg, SO002) 2430 672 Kqd Quartz diorite (Ki12, Ki6, Ki5, Ki4, LC002; part Mzg, TC002; Kkd, SO002) 2435 672 Ksd Sheeted dikes, Valdez Group (Ksd, SR002; BS002; Ksd, BS004; SR004) 2440 672 Kmum Gabbro of Mount Moffit (gbm, MH002; Kd, BD002; Km?, TN002; Km, KH003; Kgab, TK003) 2445 672 Kmum Serpentinite, diabase, gabbro, and mafic volcaniclastic rocks (Ksp, KH003) 2446 672 Kvgb Coarse-grained gabbro, Valdez Group (Kvgb, SR002; BS002) 2447 672 Kvu VALDEZ GROUP: Dunite, locally with layers of chromite (Kvu, SR004) 2450 251 13 Kga Alaskite (Ka, LG002; Kp, BD002, Ka3, SH002) [Overprint symbol 13] [< 85 Ma] 2460 251 13 Kgl Granite (Kw, AN002; Kick, Kicc, BH002; Kg, CI005; Ki8, LC002, Kg, MZ002; RB005; Kug, NB002; Kcm, NR002; TKg, TN003; Kog, 2460) [Overprint symbol 13] [< 85 Ma] 2465 251 13 Kgs Syenite (LG002; Kae, BN002) [Overprint symbol 13] [< 85 Ma] 2470 251 13 Kgk Quartz monzonite, monzonite, and syenite (Ki15; Kmo, LG002; Kqm, TK003; Ksp, Ki, LH002; Km, Kmd, MG003; Kihd, BH002; Kg, BT002; TN002; Kqm, IL002; Kp, Kb, Kwc, BN002) [Overprint symbol 13] [< 85 Ma] 2475 251 Kgm Granite (Pedro Dome, LG002; grgm, grma, grrc, MH002; Kgq, Kcg, Ktq, Ktg, Kmg, NB002; Kqd, Kq, Kg, Kgq, Klg, Kpg, KC002) 2480 251 Klgd Granodiorite (unit Kgr [part], HE002; Kg, BD002; HP002; grmr, MH002; Ki14; LC002; Kgd, LG002) 2490 251 15 mKg Granite 85-110 Ma [Overprint symbol 15] 2491 251 15 mKqm Quartz monzonite, monzonite, and syenite 85-110 Ma (Kq, SL002; Kkz, Kku, Kvb, BN002; Kd, BN002; SO002) [Overprint symbol 15] 2492 251 16 mKgd Intermediate granitic rocks, mostly granodiorite (Kwqo, PE002; Kwqo, Kwan, PE003) [Overprint symbol 16] 2493 251 15 mKqd Intermediate granitic rocks, mostly quartz diorite and tonalite, magmatic garnet and epidote 85-110 Ma (unit Kgr [part], HE002; Kqd, Kq, Kg, Kgq, Klg, Kpg, KC002; Ktef, Ktob, BC002; Kgp, Kgg, Kqd, BC003; Ktif, Ktop, Ktoc, Kqop, Kqo, Kdi, Kmgf, Ktef, Kto 2494 672 mKgb Gabbro (not zoned ultramafic) (Kwgb, CR010) 2495 672 mKum Ultramafic rocks, especially including zoned ultramafic bodies of southeast Alaska (TKum, BC003; Kum, KC002; Kbdu, Kbwh, Kbgb, Kuk, Khb, Kgb, PE002; Khb, PE003; Kkdu, Kkgu, CR010) 2510 672 Kmum Serpentinized ultramafic rocks (Kum, AN002; NB002; Ksp, TN002; BH002; Kvu, CV002; s, BH003) 2515 251 14 eKg Granite (lKgg, RB009; Kis, RM003) [Overprint symbol 14] 2520 251 14 eKg Slana pluton, hornblende granodiorite, Nabesna pluton, granodiorite and quartz diorite, Antler Creek pluton, syenodiorite, Border of Antler Creek pluton, hornblendite, Klein Creek pluton, granodiorite and quartz monzonite (Kkg, MC002; MC003; Ksg, Kng, Ka 2521 580 13 eKgf Foliated granodiorite 2525 251 14 eKg Quartz-feldspar porphyry (Knp, NB002) [Overprint 14] [>110 Ma] 2530 251 14 eKg Quartz monzonite (Km, MZ002; Kgr, NL003; Kg, RB004; TN003; TY002; WI002; Kinc, BH002; RM003; Kgq, HU002; Kqi+, SE002; Kq2, Km2, SH002; Kg (part), CA003; CA004) [Overprint 14] [>110 Ma] 2535 251 348eKns Nephelene syenite (Kns, SE002; Kn2, SH002; Kn, SL002; Kg (part), CA003; CA004; Kdc, SO002) [Overprint symbol 348] 2540 251 14 eKg Diorite, quartz diorite and syenodiorite (Kbd, Ksd, Kdd, Kcs, Kkd, NB002; Tqd, Tqd-f, Tqd-p, Kgd-f, TK003; Kt, MF004) [Overprint 14] [>110 Ma] 2545 251 14 eKsy Syenite (Kgi, SE002; Ks2, SH002; Kg (part), CA002; Ko, SL002; Kkms, SO002) [Overprint symbol 14] 2550 672 eKgb Gabbro of Tenakee Inlet on Chichagof Island (Tg(?), SI006; Kku, CR010) 2570 251 14 eKtt Leucotonalite and trondjemite (Kt, AN002; Knt, NB002; Kg (part), CA003; CA004) [Overprint 14] 2590 580 eKgdc Foliated (or cataclastic/mylonitic) quartz diorite (Ki9, Ki5, LC002) 2600 580 eKmi Metamorphosed granitic rocks, wide range of compositions from quartz monzonite to diorite (ag, MH002; Kgr, AR002; Kkgm, SO002; Kfg, BN002; mgg, MF003) 2620 963 13 eKqm Foliated quartz monzonite and granodiorite (Kfq, KC002) [Overprint symbol 13] 2625 251 348eKmg Migmatite associated with western plutonic belt of southeast Alaska (Wales-Chichagof arc) (Kwmg, JU002; Krmg, CR010) [Overprint symbol 348] 2630 963 14 Mzsa Migmatite and migmatitic schist (mig, mgsh, MH002) [Overprint symbol 14] 2640 44 Khg Hornfels and gniess (Kh, KH003; Pzh, EA002) [Also gneissose areas within hornfels, largely on the Tanana geologic map (TN002)] 2670 672 Kmum Metagabbro, metadiabase, and minor amphibolite (mgb, MH002) 2700 749 Kvs Metasedimentary rocks of the Valdez Group (Kvs, AN002; BG003; CV002; CV003; SR002; VA003; KJv, KN003; MC002; TY002; Kv, BG002; BS004; SR004; Kv, Kvm, SV002; Kvs, Kfc, Kvm, Khc, VA002) 2702 749 238Kvvs Valdez Group, Interbedded volcanic and sedimentary rocks (Kvvs, BG002; CV002; CV003; SR002) [Overprint symbol 238] 2705 516 Kvv Valdez Group, metavolcanic rocks, undivided (Kvv, CV003; VA002; Kvt, AN002; BS004; SR004; Kvgr, CV002) 2710 749 16 Kvg Valdez Group -- Schistose metaflysch (Kvm, av, avp, BG002; Kvm, CV003; Kvm, Kvsm, MS002; Kvs, BS004; SR004; mlg, mlp, msb, MF003; TKmlg, SK002) 2715 516 14 Kvsg Valdez Group -- Schistose to gneissic metaflysch and migmatite (Kvg, BG003; CV002; CV003; Kvg, ap, BG002; mgb, MF003) [Overprint symbol 14] 2810 909 14 KJs Argillite, chert, sandstone, and limestone (KJc, BH002; Mza, TC002) [Overprint symbol 14] 2812 909 13 KJwc Wilber Creek and Wolverine quartzite units, undivided (TN003 modified, shown as southern TrPs) [Overprint symbol 13] 2815 909 KJw Wolverine unit, quartzite and interbedded shale and siltstone, Late Jurassic or Early Cretaceous (KJw, LG002; TN003; KJqa, CI002) 2816 909 15 KJw Quartzite of the Wolverine quartzite unit (KJwq, TN003) [Overprint pattern 15] 2817 909 KJw Sandstone and shale of the Wolverine quartzite unit (KJwa, TN003) 2820 793 14 KJfn Marine sedimentary rocks of Gravina-Nuzotin unit (KJa, HE002; KJs, MC002; MC003; NB002; KJgs, MzPzms, KC002; KJss, KJsm, PE002; Tsh, Ksm, Kss, Ksp, Mzp, PE003; MzPzms, Tsh, CR010) [Compare to unit KJf north of Denali Fault, HE002] [Overprint symbol 14] 2821 793 15 KJcg Conglomerate, sandstone, siltstone, shale, and volcanic rocks, westernmost outcrops of the Gravina-Nuzotin belt (HE002) [Overprint symbol 15] 2822 797 13 KJgb Sedimentary and volcanic rocks of the Gravina belt, undivided (KJsu, JU002; KJs, KJsh, SI005; KJgg, Jgs, CR010) [Overprint symbol 13] 2824 793 44 Mzc Conglomerate and sandstone, possibly northern shore facies of Nutzotin Mountains sequence (TKc, NB002) [Overprint symbol 44] 2825 793 KJfm Metasedimentary rocks (JKw, LH003) 2830 909 KTrs Marine volcaniclastic sandstone, conglomerate, and argillite (KCg1, DI002; TA002; KJs, TA003; TA004; KCgg, BH004; Jvs, BH002) 2831 909 44 KTrsi Marine volcaniclastic sandstone, conglomerate, and argillite apparently cut by dikes or shallow intrusions (KJsvi, TA015) 2835 797 15 KJsh Pebble shale and Kingak Shale, undivided (KJs, DP004; ML002) 2840 754 KJyg Yakutat Group, undivided (MS002) 2841 754 13 KJys Yakutat Group, flysch facies (Kys, Kys(?), BG002; MS002) [Overprint symbol 13] 2845 754 13 KJsg Sitka Graywacke and Khaz Sandstone (KJs, KJsh, SI002; PA002; Ks, Ksh, SI004; KJks, SI002; Ksh, MF002) [Overprint symbol 13] 2850 793 KJf Flysch sequence, Early Cretaceous and Late Jurassic (Js, Kag, TK002; KJf, HE002; MM002, south of Denali flt.; JKs, Pzu, LH002; KJu, TY002; Km, Kw, TY003; Ks, TY004; KJs, KJc, KJsh, MG002; Ks, Kw, KJu, TY005; KJs, LC002; LH004; TK003; KJs south of Denali 2851 793 13 KJfk Flysch sequence (Early Cretaceous and Late Jurassic, unit KJfk, HE002) [Overprint symbol 13] 2852 793 14 KJfn Flysch sequence, Late Cretaceous to Late Jurassic (unit KJfl, HE002; KJm, MG002; KJs, TL002) [Overprint symbol 14] 2855 793 KJkr Koksetna River sequence, Jura-Cretaceous flysch, southern part of Kahiltna terrane (KJkr, LC003; LC006; LH005) 2860 909 16 KJvr Vrain unit, pyritiferous shale and minor siltstone; not flysch, equivalent to upper part of Glenn Shale (KJv, LG002; part of MzPzat, CI002) [Overprint pattern 16] 2861 909 16 KJgu Glenn Shale, upper unit, Early Cretaceous to Middle Jurassic (KJgu, CY002; KJs, BR002) [Overprint pattern 16] 2865 516 44 KJsgu Sitka Graywacke, undivided ( 2866 516 15 KJsgs Sitka Graywacke graywacke and argillite ( 2870 978 KJv Basalt and andesite flows, Whitefish Lake volcanic field, Nyac terrane (TJwl, RM003; KJba, BH002; RM003; KJv, SC002; KJvs, GO002; KJv, DI005) 2872 978 13 KJvs Volcanic and sedimentary rocks (KJvs, DI002; KJvs, GO002; DI007; DI005) 2875 978 KJvt Tuffaceous subunit of unit MzPzat (Vrain, CI002) 2880 978 KJcv Chert and volcanic sequence (Late Cretaceous and(?) Jurassic, KJcv, FP002) 2885 978 KJrd Highly altered hypabyssal rhyolite and dacite (TJih, BH002; RM003) 2890 470 13 JTrtv Pillow basalt (KJb, TL002; BH002) [see 5450, 4215, all thought to be same unit] [Overprint symbol 13] 2891 978 14 KJsv Volcanic Rocks of the Sitka Graywacke (KJsv, SI002; Ksv, SI004) 2900 248 KJg Granitic rocks and minor monzonite (grs1, grs2, grs3, grcl, MH002; Kgd, hbqd, hbqm, hbgd, GU002; TJis, BH002; KJi, LC002; MzPzp, CH002) 2910 248 KJse Saint Elias Suite, biotite hornblende granodiorite; lesser tonalite; locally quartz monzodiorite, quartz diorite, granite, and quartz monzonite (JKS, YDZ002; YKL002; YMS002) 2920 633 KJgg Gabbro and diorite (KJg, MG002) 2945 633 KJmu Ultramafic rocks (Early Cretaceous or Jurassic, HE002) [Compare to Kum (AN002)] 2950 602 238KJyx Yakutat Group, melange facies (Kyx, MS002; YA002; Kym, MF003; MF009; SK012; Kys, MF003; Kyx, MS002) [Overprint symbol 238] Edit list 2951 602 14 KJyxs Yakutat Group, melange facies, sandstone masses (Kyxs, MS002) 2952 602 14 KJyxc Yakutat Group, melange facies, conglomerate masses (Kyxc, MS002) 2953 602 14 KJyxg Yakutat Group, melange facies, greenstone masses (Kyxg, MS002) 2954 602 14 KJyxd Yakutat Group, melange facies, tonalite masses (Kyxd, MS002) 2955 602 238Ksx Khaz melange or melange associated with the Sitka Graywacke (Kk, MF002; SI004; KJk, KJkh, PA002; SI002; KJkm, SI002; JTrk, PA004; SI006 2956 602 14 KJks Khaz melange, sandstone mass (KJks, SI002) 2970 793 15 KJfm Marine metasedimentary rocks, flysch, Early Cretaceous and Late Jurassic, part of the Gravina-Nuzotin belt (KJs, MH002) [Overprint pattern 15] 2971 793 16 KJgm Undifferentiated greenstone, metapelitic rocks, and metasandstone of the Gravina belt (KJsu, JU002) [Overprint symbol 16] 2975 793 15 KJgc Polymictic metaconglomerate, Gravina related (MzPzmc, KC002) [Overprint symbol 15] 2980 602 13 KJyb Metamorphic rocks of the Brabazon Range (Yakutat Group equivalent) (Kyb, MS002) [Overprint symbol 16] 2981 793 15 Kynf Schist of Nunatak Fiord (Kym, Kyn, Kyxm, Kyvm, MS002) [Overprint 15] 2985 602 44 Kyxg Yakutat Group Greenstone (Kyv, Kma, MF003) 2990 580 14 KJmqd Metamorphosed quartz diorite, granodiorite, and diorite (KJgd, KC002) [Overprint symbol 14] 3000 844 14 Jsu Jurassic sedimentary rocks, marine, undivided (Js, MC002) 3010 844 Jn Naknek Formation (B-1969A; AN002; CB003; CG002; CG004; KN002; MK005; PM002; IL002; SV002; TY002; UG004) 3011 844 13 Jn? Naknek Formation? Use with overprint pattern 13] 3012 844 Jnn Naknek Formation -- Northeast Creek Sandstone Member (Jnn, CG004; PM002; MK002; MK005; UG004; Jns, UG002) 3013 844 Jns Naknek Formation -- Snug Harbor Siltstone Member (Jns, CG004; PM002; MK002; MK005; UG004; Jnst, UG002) 3014 844 Jni Naknek Formation -- Indecision Creek Sandstone Member (Jni, CG004; PM002; MK002; MK005; UG004) 3015 844 Jnk Naknek Formation -- Katolinat Conglomerate Member (Jnk, MK002; MK005; UG004) 3016 844 Jnc Naknek Formation -- Chisik Conglomerate Member (Jnc, CG004; MK002; MK005; UG002; UG004) 3017 844 Jnnc Naknek Formation -- undivided Northeast Creek Sandstone Member and Chisik Conglomerate Member (CG004; UG004) 3018 844 Jnis Naknek Formation -- undivided Indecision Creek Sandstone Member and Snug Harbor Siltstone Member (CG004; UG004) 3020 971 Js Shelikof Formation (Jss, Sandstone member, Jsst, Siltstone member, and Jsc, Conglomerate member, all on I-1685 now abandoned) [Shelikof Fm. is equivalent to the upper part of the Chinitna Fm. (Pavelof Siltstone Member)] 3025 971 Jc Chinitna Formation (AN002; KN002; IL002; SV002) 3030 971 Jc Chinitna Formation, Tonnie Siltstone Member (Jct, IL007; KN005; SV004) 3040 971 Jb Bug Creek, undivided. Several cycles of shale and shelf sandstone in northern Yukon, fining generally to the northwest, and including equivalent generally fine clastic strata in central Yukon. (JB, Yukon; Jw, MU002; KJk, DP004; ML002) 3042 971 Jb Bug Creek Group, succession of alternating coarse and fine clastic formations (JB2, YOC002; YDM002; YBE002) 3110 971 15 Jkt Kotsina Conglomerate, Middle and/or Late Jurassic? (Jk, VA002; MC002) 3120 844 14 Juc Unnamed marine sedimentary rocks, sandstone, siltstone, mudstone (Jvc, Jvs, BH002; Jvc, RM003) 3130 844 15 Jc Marine arkosic sandstone and argillite, Togiak terrane (Ja, BH002) [Overprint symbol 15] 3140 971 14 Jtxc Chinitna Formation and Tuxedni Group, undivided (Jct, TK002; part of KJs, TL002; Jk, GO002) 3150 971 15 Jkw Graywacke of Kulukak Bay (Weary Graywacke) (Jk, DI003; DI005; GO002; HG002; NG002; KJs, IL002; LC002) [Overprint symbol 15] 3180 971 Jtx Tuxedni Group, undivided (Jt, AN002; KN002; IL002; Jtu, SV002) 3181 745 Jtb Tuxedni Group, Bowser Formation (Jtb, IL007; KN005; SV004) 3182 912 Jtt Tuxedni Group, Twist Creek Siltstone (Jtt, IL007; KN005; SV004) 3183 793 Jtc Tuxedni Group, Cynthia Falls Sandstone (Jtc, IL007; KN005; SV004) 3184 909 Jtf Tuxedni Group, Fritz Creek Siltstone (Jtf, IL007; KN005; SV004) 3185 752 Jtg Tuxedni Group, Gaikema Sandstone (Jtg, IL007; KN005; SV004) 3186 905 Jtrg Tuxedni Group, Red Glacier Formation (Jtr, IL007; KN005; SV004) 3190 971 Jk Kialagvik Formation (Jk, UG002; UG004) [Kialagvik Fm. is similar to the lower upper part of the Tuxedni Group] 3195 971 16 Jl Laberge Group, arkosic sandstone and minor shale with resistant heterolithic pebble and boulder conglomerate; recessive, thin bedded, silty shale (JL, YAL002; YGL002; YCK002; YLB002; YTS002; YWH002) [Overprint symbol 16] 3210 971 13 JTrtv Tatina River volcanics, Upper member, phosphatic shale and volcaniclastic sandstone (unit lJs, MG002; part of KJs, TL002) [Overprint symbol 13] 3220 971 13 Jms Micaceous, fine-grained black graywacke, siltstone, and slate, and gritty limestone. (Jlvs, DI003; TA006) 3230 974 16 Jvt Volcaniclastic turbidites (Jln, GO005) 3250 772 Jtk Talkeetna Formation (JTrt, AN002; Jtk, KN002; VA002; TK002; TY002; IL002; Mzv, TY003; TY005; Jta, Jts, Jtrd, GU002; Jlvs, GO002; HG002; Jt, MK002; MK005; SV002; UG002; UG004; Jv, KN009) [Listed as sedimentary rock unit above; varies, essentially volcanic 3251 772 14 Jtkh Talkeetna Formation, Horn Mountain Tuff member (Jtkh, IL007; KN005) [Overprint symbol 14] 3252 772 15 Jtkp Talkeetna Formation, Portage Creek Agglomerate member (Jtkp, IL007; KN005) [Overprint symbol 15] 3253 772 16 Jtkm Talkeetna Formation, Marsh Creek Breccia member (Jtkm, IL007; KN005) [Overprint symbol 16] 3260 772 JTrp Phyllite and chert, possible Talkeetna stratigraphic equivalent (JTrp, BH002; MzPzgp, TA019) [Compare with 3850] 3270 301 14 JMsu Strangle Woman Creek sequence, undivided (JMsu, CO003) 3271 974 14 Jqs Strangle Woman Creek sequence, quartzite and shale (Jqs, CO002) 3272 974 15 JMqs Strangle Woman Creek sequence, quartzite, shale, and sandstone (Jqss, CO002) 3280 752 JMpu Younger strata of the Porcupine River sequence, undivided (JMpu, CO003) 3340 633 Jmu Ultramafic rocks including layered quartz gabbro (Jum, Jlg, Ju, VA002) Lumped units 3345, 3405, 3490, 3491, 3495, 3540, 3545 3380 325 13 Jtr Trondhjemite (AN002; TK002; IL002; Jt, UL002; GO002; HG002; Jgr, HC002; Ji2, LC002) [Overprint pattern 13] 3390 633 Jmu Alkalic gabbro (Jgb, HE002) 3400 325 Ji Alaska-Aleutian Range batholith, undifferentiated (Jg, IL008; LC010: KN011; p, IL007; Ji7, MU002) 3401 325 Jgr Granite of Alaska-Aleutian Range batholith (Jg, VA002; J(?)f, SV002; Jgr, MK002; MK005) 3402 325 14 Jgd Granodiorite of Alaska-Aleutian Range batholith (Jgd, AN002; BG002; KN002; MK002; MK005; UG002; UG004; VA002; Jqm, IL002; Ji3, LC002; KJgd, KJgd-f, KJgn, TK002) 3403 325 15 Jqd Quartz diorite of Alaska-Aleutian Range batholith and Chitina Valley batholith, quartz monzodiorite, quartz diorite, tonalite, and granodiorite (Jqd, AN002; KN002; TK002; IL002; MK002; MK005; Ji1, LC002; Jt, BG002; Jc, MC002; VA002; JTrq, NB002; Jgd, CR0 3404 325 16 Jqt Quartz diorite and tonalite (AN002; Jd, Jto, SV002; JU, KN009) [Overprint symbol 16] 3405 633 Jmu Mafic and intermediate plutonic rocks, Middle to Early Jurassic, also Diorite and Gabbro of Alaska-Aleutian Range batholith (Jd, IL002; Jmip, AN002; Jgb, MK002; MK005; KJd, MF002) 3406 423 Jgb Largely gabbroic rocks, may include minor ultramafic or dioritic rocks (Jg, GO002; HG002; TJik, BH002; TJim, RM003; Jg7, DL002; DL004; Jg7, Jfg7, MU002; Jg, SI006; Jmp, VA002; Jsg, Jslg, HW003; HW004) 3410 325 15 Jpg Bokan Mountain peralkaline granite and syenite (Jg, CR002; Jbgr, Jbsy, CR010) [Overprint symbol 15] 3420 633 Jla Lamprohyre and maifc dikes associated with Iliamna Volcano, thought to be Jurassic (la, b, IL007; la, KN005; LC007) 3450 772 13 Jvab Andesitic and basaltic flows, flow breccias and epiclastic marine rocks; younger than Talkeetna (Jab, BH002; RM003; Jvs, GO002; mi, DI002; Kkv, BH004) [Overprint symobl 13] 3460 772 44 Jsb Igneous complex of Siniktanneyak Mountain, basalt at highest stratigraphic level. Includes pillow breccia, part of ophiolite. (Jsb, Jsd, HW003; HW004; Jsu, HW004) 3480 362 Jan Anorthosite () 3490 633 Jmu Gabbronorite, Middle and Early Jurassic (Jg, Jgs, AN002) 3495 633 Jmu Ultramafic and mafic rocks, Middle to Early Jurassic (Jum, AN002; Jm, IL002; Jum, GO002; HG002; Ju7, MU002; DL002; DL004) 3496 468 Jtu Cumulate ultramafic rocks (unit Jcu, NL003; pc, OP002) 3497 468 Jtu Harzburgite tectonite (unit Jht, NL003; ph, OP002) 3498 468 Jtu Ultramafic and mafic rocks, Middle to Early Jurassic; Dishna River mafic and ultramafic rocks (Juu, NL003; Jumc, AR003; WI003; Ju, AR002; UL002; Jdr, ID002; OP002; JPu, MZ002; BT002) 3505 325 13 eJn Nordenskiold Dacite (lJN, YAL002; YCK002; YGL002; YLB002; YWH002) [Overprint symbol 13] 3540 633 Jmu Hornblende gabbro and leucogabbro (layered) (Jgl [now Jtg), VA002; shgb, GU002) 3545 633 Jmu Ultramafic rocks, Early Jurassic or older (shgb, GU002) 3550 325 15 JTrg Granodiorite of Taylor Mountain batholith and related(?) rocks (JTrg, TC002; JTrg, Mzh, EA002) 3555 325 15 Jsy Hornblende syenite porphyry (MZs, TC002; Js, EA002) 3600 506 PPast Metamorphic and plutonic rocks, undifferentiated, Jurassic, (Jpmu, TK002) 3610 963 Jsch Schist of Kodiak Island, = Raspberry Schist of Roeske and others (1989). Equivalent to Seldovia Schist and Schist of Iceberg Lake in Cook Inlet Region and Schist of Liberty Creek, (Jgb, Klc, VA002, revised G.R. Winkler, 1998; Jsm, SV002; Js, KD004) 3620 506 Jmgd Texas Creek granodiorite (metamorphosed) (JTrt, BC003; Trt, KC002) [Reconsider color] 3621 506 PPast Migmatite border zone of granodiorite (Jgdm, TK002) 3640 915 Jbs Bug Creek Group, Lower Schist: dark grey argillite, slate, and phyllite, commonly graphitic, thin-bedded dark grey quartzite, platy to phyllitic quartzite; minor phyllite and limy quartzite (JB1, YDW002; YLS002) 3700 915 Jps Pelitic schist, Jurassic (Jps, AN002) 3810 940 14 JTru Kingak Shale, Shublik Formation, and Karen Creek Sandstone, undivided (JTru, ML002) 3820 912 JTrmc McCarthy Formation, argillite and impure limestone (Early Jurassic-Late Triassic) (JTrm, BG002; MH002; MC002; VA002) 3821 912 JTrmc Limestone, shale, and chert (Early Jurassic(?)-Late Triassic (Norian)); newly recognized unit in Taylor Mtns. (eJTrl, TA008) 3830 912 13 JTrsu Red and brown sedimentary rocks and basalt (Early Jurassic-Late Triassic) (JTrrs, HE002) 3850 905 JTrct Crystal tuff, argillite, chert, graywacke, and limestone, deep marine, Late Jurassic to Late Triassic(?) (Jta, TK002; JTrta, HE002; JTrsv, TL002) 3851 464 JTrta Crystal tuff, argillite, chert, graywacke, and limestone, deep marine, Late Jurassic to Late Triassic(?), thought largely Triassic (unit JTrt, MD002; MD003; OP003; JTrp, SV002; JMc, RB009) 3860 325 238JTrgb Gabbro, associated basalt and andesite(?), minor diorite and diabase, and undiffereniated mafic- and intermediate composition igneous rocks. (TMzm, EA002; Mzgb, TC002; MzPzmu, YT003) 3890 464 JTro Probable dismembered altered ophiolite complex consisting of mafic flows, dikes, volcaniclastic rocks, and gabbro, subdivided: (Pzmg, GO002; HG002) 3891 468 JTropbPillow basalt (Trub, GO005; HG003) 3892 461 JTrot Trondhjemite (Trut, GO005; HG003) 3893 461 13 JTrod Diabasic intrusive rocks (Trud, GO005; HG003) 3894 464 JTropgPyroxene gabbro (Trug, GO005; HG003) 3895 468 JTrosuSerpentinized ultramafic rocks (su, GO005; HG003) 3900 325 15 JTrdi Diorite (JU004) [Overprint symbol 15] 3950 963 16 JTrcs Calcareous schist and phyllite (JTrmc, GO005) 3990 468 44 JTrmb Metabasaltic schist (JTrmb, GO005; HG003) 3991 464 44 JTrmv Volcaniclastic schist (JTrmb, GO005; HG003) 4000 973 13 Trsu Sedimentary rocks, undivided (Tru, DP004; ML002) 4010 905 15 Trvs Volcaniclastic rocks of Rodman Bay and sedimentary and solcanic rocks of Nakwasina Sound (Trsv, Trsv?, SI002; PA002; Pmup, SK002; MF003) [Overprint symbol 15] 4011 905 708Trlc Triassic limestone, shale, and chert (TA020) [Overprint symbol 708] 4012 940 15 Trlt Fossiliferous limestone from the northeast Taylor Mountains quadrangle (Trlt, TA008) 4015 937 Trsf Shublik Formation, black shale, sandstone, and silty limestone (Trs, CO002; AC002) 4020 912 16 Trk Kamishak Formation [includes some volcanic rocks] (Trls, UG002; Trk, KN002; MK002; MK005; UG004; Trku, Trkm, Trkb, IL002; KCg2, DI002; TA002) [Overprint symbol 16] 4021 905 15 Trlb Limestone and basalt sequence, Late Triassic, Norian (Trlb, HE002; MM002; TL002) [Overprint 15] 4022 912 Trku Ursus Member, Kamishak Formation (Trku, IL002) 4023 905 Trkm Middle Member, Kamishak Formation (Trkm, IL002) 4024 912 Trkb Bruin Limestone Member, Kamishak Formation (Trkb, IL002) 4025 940 13 Trkc Karen Creek Sandstone (Trk, DP002) 4029 912 Trl Upper Triassic limestone, might not be Chitistone -- Nizina equivalent (Trl, NB002) 4030 912 708JTrlm Chitistone and Nizina Limestone units, undivided (Trl, AN002; Trn, BG002; unit HE002; Trcn, Trm, MC002 [+ 20,000 hfls]; Trl, MH002; VA002; Trl, Tsk, TK003) 4031 912 708JTrlm Limestone and marble (Jls, TK002) 4032 912 15 Trsl Spiculite and sandy limestone, Late Triassic, Norian (Trs, MD002) [Overprint symbol 708] 4033 937 Trcs Calcareous sedimentary rocks, Late Triassic, middle(?) Norian and Late Karnian (Trcs, HE002: MM002; Pzsl, TL002; Trls, MG002) 4034 937 Trgl Glenn Shale, lower unit, Late and Middle Triassic (CY002; Trs, Trks, DP004; ML002) 4035 464 Trcg Limestone, chert and some greenstone (Trvs, GO002; DI003) 4050 937 13 Trcg Conglomerate and volcanic sandstone, Late Triassic, Norian (HE002; Trvs, LH004; Trs, MG002) [Overprint pattern 13] 4055 912 13 lTrs Synorogenic clastics (uTrS, YFL002; YMQ002; YTS002; YTY002; YWF002; YWL002) [Overprint symbol 13] 4060 912 13 Trr Red beds, Late Triassic (Trr, HE002; JTrrs, MM002) 4080 937 Trgl Calcareous phosphatic shale and limestone [probably correlative with lower part of Glenn Shale] (Trs, LG002) 4110 937 Trcs Otuk Formation and black shale and chert, Triassic (Trc, LG002; Trs, SL002; Tro, AL002; JTro, JTro1, JTro2, DL002; JTro, JTro1, JTro2, JTro3, JTro4, DL003; DL004; MU002; Tro, AC002) 4120 912 14 TrPas Siksikpuk Formation, Etivluk Group, chert and shale (TrlPs, TrlPs1, TrlPs2, TrlPs3, DL002; Dl003; DL004; TrlPs4, DL004; TrPs, TrPs1, TrPs2, TrPs3, TrPs3e, TrPs4, TrPs4n, MU002, TrPs, SP002) [Overprint symbol 14] 4130 937 14 Trcgs Conglomerate and shale, Middle Triassic (Trc, NB005) [Overprint symbol 14] 4140 912 15 Trls Stikine terrane limestone, sandy limestone, and mudstone (Trsl, AL003) [Overprint symbol 15] 4150 940 Trss Shuyak Formation, sedimentary member (Trss, KD004; Trvm, KD002) 4160 944 14 TrPsg Sadlerochit Group, undivided (TrPs, TrPu, DP002; TrPs, DP004; ML002) 4161 944 15 Tri Sadlerochit Group, Ivishak Formation (Tri, DP002) 4205 0 Trvs Rhyolitic lava and breccia, tuff, chert, and shale, in Kantishna quadrangle, unit eliminated on newer TN003 compilation (Trvs, KH003) 4210 375 Trn Mafic igneous rocks, Triassic(?) (Trm, LG002; KH002; Unk, RB?) 4215 470 JTrtv Tatina River Volcanics, lower members, pillow basalt and gabbro (Trab, MG002; Trb, LH003; LH004; MG003; BH002) [see 5450, 2890, all thought to be same unit] 4230 375 Trv Upper Triassic volcanic rocks (Trv, UG002; UG004) 4235 905 JTrvs Chulitna Sequence -- volcanic and sedimentary rocks, Late Triassic, Norian (JTrvs, TL002) [Lumped with units 5010 and 3850] 4240 375 Trvm Mafic dikes, sills, and plugs intruding Shuyak Formation (Trm, KD004) 4250 905 Trsv Shuyak Formation, volcanic member (Trsv, KD004) 4310 468 13 Trqd Afognak pluton, U-Pb age indicates is probably Triassic (Ja, KD004) [Overprint symbol 13] 4315 468 13 Trsg Stikine Suite, Tally Ho Leucogabbro, Little River Batholith, Friday Creek diorite. Coarse-grained, foliated, gabbroic hornblende orthogneiss; hornblende-biotite granite and granodiorite; foliated, fine- to medium-grained hornblende quartz diorite to dio 4320 633 Trgb Gabbro, diabase, and metagabbro, Late Triassic(?) (ga, MH002; Trg, Trum, MG002; Trg, Trcg, GU002) 4321 633 Trgb Cumulate mafic and ultramafic rocks, Late Triassic(?) [Nikolai related] (cu, MH002) 4325 633 Trsgb Stikine terrane hornblende diorite and gabbro (Trkd, Trkg, AL003) 4326 633 Trsum Stikine terrane hornblende ultramafic rocks (Trkp, AL003) 4340 999 Trc Carbonatite (Jsc, TN003; TN004) 4350 468 13 Tradi Quartz diorite and lesser granodiorite and diorite, Alexander (TKgd, part, JU002; Trgd, Trd, Mzg, SI005; Trg, KC002; Mzg, PE002) [Overprint symbol 13] 4351 468 13 Traum Alexander terrane ultramafic rocks 4410 470 Trnm Schistose metasedimentary and metavolcanic rocks, Late Triassic (csv, MH002; JTrs, NB002) 4415 605 13 Trmg Biotite-hornblende syenite-monzonite gniess (JTrg, NB002) [Overprint symbol 13] 4420 375 Trn Nikolai Greenstone, Late and/or Middle Triassic (Trng, BG002; Trn, GU002; MH002; MC002; MC003; VA002; NB002; Trn, Trbd, HE002; Trmb, Trab, TK003) 4421 375 Trn Nikolai Greenstone - subaerial basalt flows member, Late Triassic (Trnf, MH002) 4422 375 Trn Nikolai Greenstone, Late and/or Middle Triassic, pillow basalt member (Trnp, MH002; Tra, Trap, TK003) 4423 375 Trn? Basalt, diabase, and subordinate sedimentary rocks, Late Triassic, Karnian and Norian (Trbd, MM002) 4425 375 Trc Cottonwood Bay Greenstone (APMAP; MzPzg, LH002; Trc, IL002; MK002; MK005; Sc, LC002; JTrv, LC003; Trv, DI005; JTrca, LC006) 4430 375 Trn Basaltic metavolcanic rocks, Late Triassic, (Trv, TK002) 4440 470 Trnm Metavolcanic, metavolcaniclastic, and subordinate metasedimentary rocks, Late Triassic, late Norian, (Trvs, HE002) 4450 470 Trnm Metabasalt and slate, Late Triassic (Trvs, TK002) 4460 375 Trg Galena Suite, massive, medium-grained hornblende diorite and gabbro sills; serpentinized greenstone sills (TrG, YDW002; YLR002; YLS002; YMY002; YNC002; YNR002) 4470 374 Trhg Hyd Group, undivided (Trsv, KC002, Trhsv, Trh, PE002; Trhsv, CR010) 4471 374 44 Trhv Hyd Group, including Chapin Peak Formation marine volcanic rocks and subordinate calcareous sedimentary rocks (Trc, KC002; Trhv, PE002; Trhh, PE003; Trhc, CR010) [Overprint symbol 44] 4472 374 15 Trhb Hyd Group breccia (Trhb, PE002; PE003; Trhb, CR010) [Overprint symbol 15] 4473 374 708Trhl Hyd Group limestone and dolomite (Trl, KC002; Trhl, PE002; PE003; Trhl, CR010) [Overprint symbol 708] 4474 374 13 Trhf Hyd Group felsic volcanic rocks, includes Puppets Formation on Gravina Island (Trv, KC002; Trhv, CR010) [Overprint symbol 13] 4475 374 Trha Hyd Group argillite (Trha, PE002) [Overprint symbol 14] 4480 470 15 mTrsb Stuhini Group, pillow basalt, volcanic sandstone and mudstone (Trsb, AL003) 4481 470 16 mTrss Stuhini Group, tuffaceous sandstone, volcanic wacke, tuff, mudstone, and minor conglomerate (Trss, AL003) 4500 468 14 Trmv Mafic metavolcanic rocks, metamorphosed intermediate to mafic volcanic flows, pillowed flows, tuff, and agglomerate, with subordinate pelitic and semipelitic flysch. (Alava) (part of MzPzmv, MzPzu, KC005) [Overprint symbol 14] 4501 974 Trclt Perseverance Slate and related Alava slate and phyllite (Trs, KC002) 4510 974 13 Trpp Pinnacle Peak phyllite and phyllite of Rodman Bay (Trp, SI002; Kpp, SI004) [Overprint symbol 13] 4511 468 15 Trvs Volcaniclastic rocks of Rodman Bay and sedimentary and volcanic rocks of Nakwasina Sound (Trsv, Trsv?, SI002; PA002; Pmup, SK002; MF003; Kf, MF002; SI004) [Overprint symbol 15] 4512 912 708Trml Marble of Nakwasina Sound and limestone blocks in Freeburn Assemblage (Kfl, SI004; Trm, SI002; PA002; Pmum, SK002; MF003) [Overprint symbol 708] 4515 912 708Trw Whitestripe Marble (Pmum, MF003; Trwm, MF004) 4516 912 708Trw? Whitestripe Marble? 4520 605 13 Trgn Orthogniess (Trgn, SI005; MzPzm, pazrt, JU002) [Overprint symbol 13] 4521 605 708Trmb Marble (mTrmb, JU010) [Overprint symbol 708] 4550 602 15 Trkb Kelp Bay Group, undivided (JTrkb, SI006) 4710 973 TTC Togiak-Tikchik Complex, formerly Gemuk Group, chiefly siltstone and lesser chert and volcanic rocks (KTrg, SM002; KCgu, RM002; MzPzvs, RM004; TrPvs, MA002; KCg1, DI002; TA002; KCg, BH003) 4711 973 14 MzPzgcLava flows in undivided Gemuk Group, chiefly siltstone and lesser chert and volcanic rocks (part KCg, BH004) 4712 973 14 MzPzgcLimestone in undivided Gemuk Group, chiefly siltstone and lesser chert and volcanic rocks (part KCg, BH004) 4713 973 15 MzPzgvVolcanic breccia in undivided Gemuk Group, chiefly siltstone and lesser chert and volcanic rocks (part KCg, BH004) 4720 973 14 JPc Christian River and Porcupine River sequences (JPc, CO002) 4730 979 4730 Minto unit, Wilber Creek flysch and Wolverine quartzite, undivided (KJmu, YFB) 4800 312 Mzi Intrusive rocks, quartz diorite and diorite (TY003) 4870 470 14 Ktrv Gabbro and basaltic rocks of Kechumstuk Mountain in Interior Alaska, largely altered mafic volcanic rocks (Mzgb, TC002) [Overprint symbol 14] 4880 375 Mzm Mafic rocks, diorite and gabbro (Mzm,TY003; Mg, SV002; Mzg, g, BM002; mi, AR002) 4890 674 Mzum Ultramafic and associated rocks (Mzp, EA002; Mu, SV002; um, MH002; GG, VA005 [new unit]) 4891 674 Mzum Ultramafic and mafic igneous rocks along Broxson Gulch thrust (umm, MH002) 4905 944 JPzk Metasedimentary and metavolcanic rocks, (Mzs, TY003; TY005) (Correlated with Kakhonak Complex) 4910 506 348KPzw Windy, quartz-chlorite-sericite schist, epidote-actinolite greenschist, quartzite, slate, quartz-mica schist, limestone (PMW5, YKL002) [Overprint pattern 348] 4920 944 JPzk Metavolcanic and metasedimentary rocks, (Mzu, TY003; TY005) (Correlated with Kakhonak Complex) 4950 602 348Mzm Tikchik terrane melange (MzPz, DI003, DI005, DI007, GO002, TA003; TA006; TrPzm, BH002; KCgc, BH004; KCg4, DI002; TA002; Mzm, TA019) 5000 937 16 JPe Etivluk Group, undivided: Maroon, red, green, gray, black, and variegated chert and siliceous argillite, minor maroon calcareous siltstone and argillite, and rare maroon or gray limestone lenses. (JPe, BM002) [Overprint pattern 16] 5004 944 TrCs Sedimentary rocks: Includes: Shublik and Otuk Formations - Black shale, siltstone, limestone, and black chert; Sadlerochit Group - black shale, and bluff calcareous siltstone; Siksikpuk Formation - black, red, and green shale and siltstone; buff calcare 5010 937 14 KPs Carbonaceous shale, mudstone, and graywacke; subordinate limestone, chert, conglomerate, and mafic volcanic rocks; minor felsic volcanic rocks; and the metamorphosed and deformed equivalents (SEAK) 5012 937 14 TrPs Dark gray, phyllitic, siliceous to carbonaceous argillite and shale, subordinate chert-rich conglomerate, chert, volcaniclastic rocks, highly calcareous argillite or limestone, and minor intrusive rocks. (Ps, TN002; TrPs, TN003; SL002) 5020 461 TrMts Formerly Rampart Group, sedimentary rocks, now considered Tozitna -- Triassic to Mississippian (TrMrs, LG002; JMr, TN003; PaMc, ch, CI002; JPc, BV002; Pza, CY002; Pq, EA002) 5021 461 TrMis Rampart Group, sedimentary rocks, Triassic to Mississippian (unit TrMs, OP002; TrMv, MD003; OP003; Pg, RB003) 5022 977 MzPzs Low-grade metasedimentary rocks of the Seventymile/Slide Mountain terrane (MzPzs, CY006) 5026 977 16 MzPzc Chert and argillite, Goodnews terrane (BH002) [Overprint pattern 16] 5030 0 TrPzvsVolcanic and sedimentary rocks of Talkeetna superterrane, Triassic and Paleozoic (HE002) [Only in cross-sections] 5035 937 708TrPgt Lower unit Glenn shale and Tahkandit Limestone, undivided (TrPgt, CY002; PCs, BR002) [Overprint pattern 708] 5036 977 Pzta Sedimentary rocks of the Tatonduk area, undivided. Ranges through entire Paleozoic, diverse lithologies, many formal units lumped (PCta, YFB) 5040 905 16 TrPas Flysch-like sedimentary rocks (TrPas, HE002; Trps, MM002) [Overprint symbol 16 5045 905 16 MzPzvsTurbiditic volcaniclastic sandstone and argillite, Goodnews terrane (MzPzv, BH002) 5050 905 13 MzPzasArkosic sandstone and slate, Goodnews terrane (MzPzs, BH002 5060 905 14 TrDs Marine sandstone, shale, limestone and conglomerate (BH002; KCgl1, DI002) 5070 977 14 MzPzctWhite-weathering chert or silicified limestone (wc, KL002) [Overprint symbol 14] 5090 602 16 MzPzm Melange and argillaceous melange, Goodnews terrane (MzPza, BH002;) [Overprint symbol 16] 5105 912 14 KPv Andesitic or basaltic flows and locally fragmental rocks, subordinate clastic strata and carbonate, and the metamorphosed and deformed equivalents (SEAK) 5110 912 14 TrDv Chulitna Sequence -- volcanic and sedimentary rocks, Early Triassic to late Paleozoic (unit TrDv, HE002) 5111 461 TrMicaChert, volcanic rocks, metasandstone, and limestone (TrMc, ID002) 5112 461 TrMicaChert, argillite, and volcaniclastic rocks (TrPzc [TrMc], OP002; OP003) 5113 468 JPztm Mafic and ultramafic rocks, undivided (Jurassic? and/or Paleozoic?) (Pzmi, RB005) 5120 347 MzPzi Volcanic rocks, unknown age (unit vr, NL002; MzPzb, EA002) 5130 468 16 JTrtmuRampart Group, igneous rocks, Triassic to Mississippian (unit TrMrv, LG002; JMr, TN003; MzPzc, CI002; CY002; Pzv, BR002; TrMb, NL002) [Overprint 16] 5131 461 TrMtsuMafic and sedimentary rocks; pillow basalt, chert, and minor argillite (JMms, TN002; TrMcb, OP005; MD004) 5132 464 JMtru Undivided Tozitna (mafic rocks?) (JMr, TN003 5133 464 JMtu Mafic, ultramafic, and sedimentary rocks of the Tozitna sequence, undivided (Jurassic to Mississippian) (mi, RB002; Pzrgmsv, Pzrgs, RB004; JPv, BT002) 5135 325 44 JMvr Rhyolite and dacite of Tozitna terrane (JMvr, CS002) 5140 464 JMab Basalt and diabase, Permian to Jurassic (TrPv, KH003; JMbc, TN003; Jv, HU002; SE002; SH002; JPv, BV002; JPb, MZ002; RB003; RB004; TrMb, OP002; NL003; MzPzv, WI002; TrPg, SL002; JDv, RB009; MzPzb, BN002) 5145 468 MzPzl Melange between Angayucham-Tozitna and Arctic Alaska and Ruby terranes (JPv, AR002; BT002; MzPzm, BM002; MzPzv, SP002; MzPzl, AR003; BM003; SP003; JDu, MzPzl, HU002) 5150 468 Jaum Ultramafic rocks, Permian to Jurassic (JPu, TN002; RB004; JMu, TN003; Js, SH002; s, BM002 [in part]; Jumc, CA004; RB009) 5160 347 MzPzi Undivided intrusive rocks, Mesozoic or Paleozoic (MzPzi, TL002; MzPzt, BN002) 5170 347 MzPzg Granodiorite of Rainbow Mountain (grrm, MH002) 5175 347 MzPzi Diorite (MzPzd, CI002) 5180 347 MzPzi Gabbro and quartz diorite, Mesozoic and/or Paleozoic (MzPzg, EA002; TL002; MzPzi, LH003; LH004; MG002; MG003) 5190 640 MzZum Undivided dunite and serpentinite, Mesozoic or Paleozoic (MzPzd, TL002; part of Jsc, TN003; MzPzs, BN002; SO002) 5200 963 MzPzu Metamorphic rocks, undivided (JPzm, AN002; MzPzu, KC002; b, c, cs, m, BM002; PzPs, WI002; MzPzp, PE002; TKp, Mzp, PE003) 5201 937 Trcs Fine- to medium-grained mylonitic metasedimentary rocks, calc-schist, marble, quartz-mica schist (as, MH002) 5202 506 13 Pe Metasedimentary rocks sequence, overlying 100-m-thick chert sequence and principally (700 m) black argillite containing minor sandstone and limestone (TrPam, HE002) [Overprint pattern 13] 5203 963 MzZyu Undivided schist and gneiss (in SE Alaska) (PE, SD) 5204 506 348PPast Dadina Schist (ds, GU002) [Overprint pattern 348] 5205 963 14 Mzsa Schist and amphibolite, Late Cretaceous or older (sa, MH002) [Overprint pattern 14] 5206 963 15 Mzpca Quartz-mica schist, calc-schist, and amphibolite, Late Jurassic or older (msh, MH002) [Overprint pattern 15] 5207 937 Trcs Schist, quartzite, and amphibolite, Triassic(?) (unit sq, MH002) [See also MH002 units mig and mgsh. Lithologically similar rocks on strike in Healy quad have Penn to Trias conodonts, see unit Trcs?] {Mzmm} 5208 937 15 TPza Raven Creek Hill unit, metasedimentary gneiss, mica schist, phyllite..., Mesozoic or Paleozoic (MzPzr, LG002; Pzsr, TN002; TN003; KH003) [Overprint symbol 15] 5209 506 13 MzPza Black argillite and other low-grade metasedimentary rocks along the Tintina Fault zone (MzPza, CY006) 5210 963 15 Mzpca Argillite and metagraywacke, Late Jurassic or older (ma, MH002; part Kag, TK002) [Overprint pattern 15] 5211 963 MzPzaqArgillite and quartzite (CI002) Deleted unit in revision. 5212 347 238MzPzt Silicified tuff, white, light-tan, light-gray silica rock [Overprint symbol 238] 5213 937 TrPzd Metasedimentary, metavolcanic, and sedimentary rocks of the Doonerak area (Other maps show as NSA 5565 and 6685) (TrPzd, YFB) 5215 963 15 Mzpca Phyllite, Late Jurassic or older (mph, MH002) [see Pzp, #5540] [Overprint pattern 15] 5216 909 16 KJvr? Phyllite, amphibolite, greenstone, and diorite, Mesozoic or Paleozoic (MzPzp, LG002) Lumped with Vrain [Overprint pattern 16] 5217 977 MzPzp Chloritic phyllite, Goodnews terrane (BH002) 5220 944 JPk Kakhonak Complex (Jurassic, Triassic and older?) (JPk, Jmg, IL002; JPk, MK002; MK005; MzPzs, LH002; Mzv, Mzu, LH003; TrPztc, LC003; LC004; as, KN009) 5225 977 13 MzPzmcMetachert and phyllitic quartzite, Goodnews terrane (MzPzm, BH002) 5230 311 JPe Banded dark-green, gray, and red eclogite and banded amphibolite. (JPe, BV002) 5235 375 KMu Melange-like assemblage of mafic volcanic rocks, chert, mudstone, argillite, graywacke and limestone (KMu, RM005) 5240 375 MzPzb Metabasalt and minor metachert (MzPz, BH002; Pzg, EA002; MzPzm, LC002) 5241 605 MzPzm Metabasite, Arctic Alaska terrane (MzPzm, AR003; BM003; HU003; SP003; WI003) 5242 605 MzPzm Metabasite, Ruby terrane (PzpCm, NL003; MzPzm, BT003) 5243 605 MzPzm Metabasite, Seward terrane (MzPzm, SE002; SE004) 5244 605 15 TrPzvsStikine, recrystallized volcanic and sedimentary rocks (MzPzvs, BC003; KC002; Pzvs, BC003; Tehv, JU002; TR003) [Overprint symbol 15] 5245 605 14 JPaur Uranatina Metaplutonic Complex, Jurassic(?), Layered quartz gabbro; Amphibolite and orthogneiss (Khc, Kag, Jag, VA002; sqm, sqd, sgd, shd, GU002; Mzms, TK003) [Changed per Winkler, 1998] [Overprint symbol 14] 5250 605 MzPmi Metamorphosed igneous rocks, post-Carboniferous (mi, NL002; MzPzi, BM002; MzPzmi, KC002) 5260 977 15 MzPzq Schist of lower grade metavolcanic and metasedimentary rocks unit (TrPs, JU010) [Overprint pattern 15] 5261 977 15 MzPzq Greenschist of lower grade metavolcanic and metasedimentary rocks unit (TrPs, JU010) [Overprint pattern 14] 5265 605 16 MzPzmiMainly regionally metamorphosed or otherwise recrystallized or altered diorite, quartz diorite, and gabbro (MzPzmi, KC002; CR010) [Overprint symbol 16] 5270 944 TrPzmsAlava sequence, undivided Permian and Triassic (MzPzp, KC003; MzPzsv, PE002) 5271 944 13 TrPsa Alava sequence, metasedimentary rocks (part of MzPzms and MzPzu, KC005; SOms, SOmv, SOmc, CR010) [Overprint symbol 13] 5272 605 TrPv Alava sequence, metavolcanic rocks, derived primarily from submarine andesitic or basaltic lava flows, tuff, and agglomerate (part MzPzmv, KC005; MzPzmv, CR010) 5275 347 MzZog Metamorphosed granitic plutonic rocks (orthogneiss) (TKfg, KC002; MzPzgn, BC002; MzPzpo, BC003; Tgdg, PE003) 5276 337 MzZog Paleozoic otrthogneiss (Pzsg, Pzsm, AL003) 5280 464 MzPzo Ophiolitic metamorphosed mafic rocks (MzPzb, UL002; HC002) 5285 605 Pzrmi Metamorphosed mafic igneous rocks (Pzm, TN003) 5290 640 MzZum Serpentinite, Mesozoic and/or Paleozoic (MzPzu, TL002; TC002; Kum, SD002; TR002; TKum, JU002) 5295 699 13 MzZfm Metabasic and metafelsic volcanic rocks, undifferentiated.(MzPzfm, WI003) [Overprint symbol 13] 5300 838 708Pzds Dolostone, black shale and carbonate rocks (Pzd, Pzbs, BM002) [Overprint symbol 708] 5305 980 16 Pzsv Sedimenatary and volcanic rocks (Pzls, Pzvs, BC003) [Overprint symbol 16] 5310 838 708DCd Dillinger stratigraphic sequence, undivided; sedimentary rocks of Dillinger River, lime mudstone and shale, etc, Paleozoic (Pzd, TL002; Pzu, LH002; LH003; Pzdu, LH004, part of Pzl, SM002; DOsl, MD002; Pzc, MM002) 5320 980 Pzld Massively bedded limestone, dolomite, and schist, Paleozoic, Seward terrane (Pzl, CA002; SE002[SW part]; Pzc, NR002) 5321 980 13 PzZls Undivided limestone and schist, Paleozoic (Pzls, CA002; Pzu, NR002) [Overprint pattern 13] 5322 980 14 Pzls2 Limestone and quartz-mica schist, Paleozoic, Seward terrane (Pzs, CA002; NR002) [Overprint pattern 14] 5325 980 44 PPas Skolai Group undivided; also Skolai Group, greenstone, Early Permian to Middle Pennsylvanian (Pzs, VA002) [Overprint symbol 44] 5330 573 708Pzlc Limestone and chert (Pzl, CI002) [Overprint pattern 708] 5340 836 708Pzrm Carbonates, early Paleozoic (Pzl, TN003; Pzc, BT003; OP002; RB003; RB009; mcl, NL002; PzpCc, NL004; Pzm, BV002; MZ002; BT002; PaMcl, MD002) [Overprint symbol 708] 5341 742 PPl Limestone?, Permian-Pennsylvanian? (unit PPl, LH003) 5350 461 14 Pzqa Quartzite and argillite, Late Paleozoic (Pzqa, CY002) [Overprint pattern 14] 5355 461 15 Pzca Chert and argillite, Late Paleozoic (CY002) [Overprint pattern 15] 5360 458 15 Pzsu Clastic rocks, undivided, Paleozoic(?) (Pzu, CY002) [Overprint pattern 15] 5361 458 15 Pzss Schistose sandstone, Paleozoic(?) (Pzsc, CO002) 5370 458 348JCmd Mystic and Dillinger stratigraphic sequences, undivided (Triassic to Ordovician), undivided sedimentary rocks, typically flysoid (Pzp, Pzus, TL002; Pzc?, DOs, DOs?, MM002; Dos, HE002) [Overprint pattern 348] 5375 458 JDm Mystic stratigraphic sequence, undivided (Triassic to Devonian) (Pzmu, LH004) 5380 742 16 ePzc Lower Paleozoic black chert. Derived from 1969-1970 Condan and Hoare field notes lPzc, TA019) 5410 470 13 Pzvs Volcanic and sedimentary rocks, middle or late Paleozoic (Pzv, TL002; Pzvs, KH003; JPzu, SH002) 5440 347 MzPzi Diorite (Pzd, BD002; TC002) 5450 470 13 JTrtv Pillow basalt, middle or late Paleozoic (Pzbs, TL002) [see 2890, 4215, all thought to be same unit] 5460 270 238Pagb Gabbro and leucogabbro, Late Paleozoic, Permian to Pennsylvanian (Pzg, VA002; Pgo, MC002) [Overprint pattern 248] 5470 241 Pzug Ultramafic and mafic rocks and greenstone (Pzg, Pzum, NB002; Pu, MC002; Pzmu, CY002) 5475 311 Pze Eclogite see Chatanika unit [5510], which includes eclogite in Livengood quad (Pze, CI002) 5500 311 708Pzkm Undivided Paleozoic metamorphic rocks: Marble and marble of Klery Creek, and quartz mica schist (Pzm, Pzkm, Pzqms, Pzqs, Pzbq, BM002; MzPzg, CS002) [Overprint symbol 14] 5510 311 Pze Chatanika unit, allochthonous garnet-bearing qtz-bio-mus schist and quartzite, Paleozoic (Pzb, EA002; Pzc, LG002; PzpCms, CI002) 5515 311 15 Pzsqm Metamorphosed sedimentary, volcanic, and intrusive rocks, undivided (part MzPzms, MzPzu, KC005; MzPzmc, CR010) [Overprint symbol 15] 5516 209 15 Pzmv Metamorphosed volcanic rocks, Kah Shakes sequence (part MzPzmv, KC005) [Overprint symbol 15] 5521 977 44 MzPzr Reindeer Hills complex of altered carbonate rocks, schist and quartzite, and shallow intrusive rocks (NR002) [Overprint symbol 44] 5525 836 708Dm Marble, Paleozoic (Dl, HU002; Pzl, SE002 [N part]; SH002; Pzc, SH004; Pzkm, SE003; Pzm, BM002; Pzc, SP003; AR003; BM003; WI003; Pzm, WI004) [Overprint symbol 708] 5526 836 708Pzm Marble, Paleozoic (m, KC002) [Overprint symbol 708] 5540 301 13 Pzgs Greenschist and other metamorphic rocks, undivided (Pzgs, CY006) 5542 461 16 TrMtqpCalcareous siltstone and sandstone and phyllite (Pzc, KH003; TrMq, NL003; PzpCs, OP002; Pzrp, RB004; MzPzq, NR002, CA003; RB009; PzpCq, MZ002) [Overprint pattern 16] 5545 461 16 PMpc Phyllite, calcareous phyllite, and marble (uPzs, uPzc, MG002) [Overprint pattern 16] 5550 506 348PPast Meta-hornblende andesite, Late Paleozoic(?); Amphibolite and quartz diorite, Middle to Early Jurassic metamorphic age (mha, MH002; GU002; Jma, AN002; TK002; uPzsv, TK003) [Overprint pattern 348] 5555 506 348Pzpr Porcupine River sequence -- Argillite (Pza, CO002) 5560 836 Pzp Phyllite of Arctic Alaska terrane (Pzp, HU003; WI003; SP002; BT002; Dp in part, HU002) 5561 836 Pzp Phyllite of Ruby terrane (Pzp, TN008) 5565 836 14 Pzg Metagraywacke of Arctic Alaska and Ruby terrane (Pzg, HU003; WI003, SP003, AR003; BT002) 5600 841 PDms Greenish-gray siliceous slate, quartzite, chert, and greenstone, Perm-Miss. (PMs, LG002) 5605 700 238MDtm Cataclastic rocks, Totatlanika Schist (unit Pzc, BD002; PzpCm, EA002) [Overprint pattern 238] 5615 841 348PDms Metamorphic and sedimentary rocks, black and greenish-gray siliceous slate, chert siltstone, debris flows, greenstone, Permian to Devonian(?) (PDms, LG002; Pzar, TN002) [Overprint pattern 348] 5620 506 14 Pat Slana Spur Formation, marine calcareous and noncalcareous volcaniclastic rocks, Early Permian-Middle Penn. (PaPs, MH002) [Overprint pattern 14] 5621 506 14 Pat Slana Spur Formation, calcareous volcaniclastic rocks, Early Permian-Middle Penn. (PaPsu, MH002) [Overprint pattern 14] 5625 506 348PPast Metamorphosed Skolai Group (PPasm, MC002; uPzfv, TK003) [Overprint pattern 348] 5630 506 PPasc Slana Spur Formation, volcaniclastic rocks, Early Permian-Middle Penn. (PaPsl, MH002; Ps, NB002; PPs, GU002; Pzv, TK002; Pzt, Pmvs, Pat, TK003) [equivalent to part of Station Creek Fm.] 5635 209 Pzvc Volcanic rocks, volcanic sandstone, cherty argillite, quartzite, and tuff (NB002) 5636 209 13 Pzv Windy terrane volcanic rocks (Pzv, NB002) [Overprint symbol 13] 5640 461 JPzsgsGreenstone (Pzg, CI002) 5641 506 348PPast Greenstone (unit mcb, GU002; Jgs, TK002) [Overprint pattern 348] 5660 699 Pzk Keevy Peak Formation, schist, quartzite, and phyllite, early Paleozoic (Pzk, HE002; MM002; Pzq, BD002; CI002; EA002; Pza, TC002; bc, FB002) 5661 699 Pzk? Keevy Peak Formation, schist, quartzite, and phyllite, early Paleozoic (PzpCg, TC002) 5662 699 16 Pzkcp Calcareous and phyllitic rocks (Pzm, CI002; BD002; bc, FB002) [Overprint pattern 16] 5666 699 13 Pzsc Spruce Creek sequence of Kantishna Hills from Bundtzen thesis (unit bc, FB002; Pzsc, MM002); Muskox sequence of Newberry and others (1996), FB004 [Overprint pattern 13] 5670 337 PzZyg Big Delta Gneiss dome (Pzg, BD002) 5675 699 16 PzZp Phyllite (TKp, PE003) 5676 136 14 PzZbg Paragneiss characterized by rusty brown weathering pelitic paragneiss and schist (MzPzp, KC002; MzPzbs, BC002; MzPzsp, BC003; MzPzbs, MzPzbg, PE002; TKbs, TKbg, PE003) [Overprint symbol 14] 5677 136 15 PzZbc Polymictic conglomerate in a schistose matrix (MzPzsc, PE002) [Overprint symbol 15] Reconsider color 5678 136 16 PzZhg Metavolcanic hornblende schist and gniess (MzPzhs, MzPzhg, PE002; TKhg, TKhs, PE003) [Overprint symbol 16] Reconsider color 5679 136 708PzZm Marble and interbedded schist (MzPzm, BC002; PE002; MzPzmb, BC003; TKmb, PE003) [Overprint symbol 708] Reconsider color 5680 506 PPast Metamorphic complex of Gulkana River, amphibolite (am, GU002) 5681 506 15 Pza Metavolcanic rocks of early Paleozoic age, derived primarily from submarine andesitic or basaltic lava flows, tuff, and agglomerate (MzPza, KC002; part MzPzmv, MzPzu, KC005) [Overprint symbol 15] 5682 337 13 Pzgm Portland Peninsula gneiss and marble (Pzgm, KC005) [Overprint symbol 13] 5683 337 16 Pzbs Biotite schist and gneiss, with subordinate felsic to mafic metavolcanic rocks, conglomerate containing quartzite, volcanic rocks, and marble. Includes Port Houghton assemblage in Tracy Arm and Port Houghton areas (TKbs, JU002; TR003) [Overprint symbol 1 5685 337 44 Pzog Four Winds Complex orthogniess (Mzog, SK004; Pzgn, SK005; SK006) 5690 640 MzZum Metamorphosed ultramafic rocks (Pzu, BD002; Pzmg, GO002; HG002) 5710 841 13 Psu Sedimentary rocks, undivided, Permian. Sandstone, siltstone, and quartzite (Pu, CY002) [Overprint pattern 13] 5715 841 13 Pef Sadlerochit Group, Echooka Formation, undivided [NOTE: may be equivalent to NSA 5710 and 5735] (Pe, DP002) 5720 841 Pal Argillite and limestone (Pua, PCl, JU002; Ps, CO002) 5721 742 13 Pps Pybus Formation, phyllite, slate, shale, siltstone, and graywacke member, also Sitth-gha-ee Peak Formation phyllite, slate, metagraywacke (Pss, SK002; SK010) 5722 742 14 Pps Pybus Formation, chert member 5730 742 Pls Unnamed Permian limestone (Pls, UG002; UG004; Pl, GO002; HG002; DI003; KCgl, BH003) 5735 742 708Ptl Tahkandit Limestone, massive bioclastic limestone (Pt, CY002) [Overprint 13] 5736 742 14 Psc Step Conglomerate, Permian, chert and quartzite clast pebble- and cobble conglomerate (Ps, CY002; Pq, BR002; Pc, EA002) [Overprint pattern 14] 5737 742 238Pstl Tahkandit Limestone, massive bioclastic limestone and Step Conglomerate, Permian, chert and quartzite clast pebble- and cobble conglomerate, undivided (Pst, CY005) [Overprint pattern 238] 5740 841 238Ps Argillite, sandstone, sandy limestone, and minor conglomerate (LG002; KH003; RB009; MD002) [Overprint pattern 238] 5745 461 14 Pig Graywacke, conglomerate, and mudstone, Permian(?) (Kc, RB002; Pg, RB004) [Overprint pattern 14] 5750 506 Ph Hasen Creek Formation (MC002; MC003) 5755 742 Phls Limestone of the Hasen Creek Formation (Pl, MC002; MC003) 5756 742 Pels Limestone of the Eagle Creek Formation (Pel, NB002) 5760 841 14 Pf Fantasque, grey to black chert in medium to very thick beds separated by thin beds of shale; grey sandstone and mudstone (PF, YCR002; YFT002; YLA002) [Overprint symbol 14] 5765 841 15 Pp Pybus Formation, limestone and dolostone (Pp, PE002; PE003; CR010) [Overprint symbol 15] 5766 841 708Phl Halleck Formation calcareous siltstone to conglomerate (Phl, PA003; PE003) [Overprint symbol 708] 5810 374 Pv Permian(?) volcanic rocks (agglomerate) from Hanson (1957) (Pv, KR004; GO002; KCg3, DI002; TA002; KCgv, BH003; Phb, PE003) 5830 461 348JPzsgsGreenstone and chert (Pgc, BD002) [Overprint pattern 348] 5860 270 Pmi Shallow-level stocks, dikes, sills and small plutons, Early Permian? (Pi, MH002) 5870 270 Pmgi Monzonitic-granitic complex (Pm, MC002; Pam, BG002) 5871 270 Pmgi Ahtell pluton (PPf, PPp, PPg, GU002; ) 5875 241 13 PPasy Syenite (PCsy, PE002; PPasy, CR010) [Overprint symbol 13] 5880 270 PPad Diorite complex, diorite, granodiorite, and altered diabase and gabbronorite (JTrd, NB002; PPd, PPa, GU002; Mza, NB002) 5920 506 348PPast Strelna Metamorphic complex, low- to medium-grade greenschist and amphibolite, Late Jurassic or older (Ja, Psm, VA002; uPzas, TK003; Pas, BG002; qmfs, mmp, GU002; Pavs, MS002; JPhc, VA007) [Overprint pattern 348] 5930 841 16 PDcvs Cannery Formation, metasedimentary and metavolcanic rocks, undivided (Pc, JU002; PMc, JU004; PE002; SD003; SD004; SI005; MDc, PE003) [Overprint symbol 16] 5931 506 14 PDcv Cannery Formation metavolcanic and volcaniclastic rocks (PMcv, JU004; SD004; SI005) 5932 841 13 PDcs Cannery Formation, carbonaceous facies, slate and black phyllite (PMcp, SD004; SI005; uPzs, SK004; TrDs, SK005) 5933 506 708PDcsm Cannery Formation slate and mable 5934 841 708PDcm Cannery Formation, massive, light- to medium gray and black argillite and marble (uPzml, SK004; TrDl, MDm, MDd, SK005) [Overprint symbol 708] 5940 506 16 Pmg Mankomen Group, undivided (Pm, NB002) [equivalent stratigraphically to Skolai Group] 5950 506 13 Pe Eagle Creek Formation, Early Permian, marine argillite and limestone, lower greenschist facies (Pe, MH002; NB002; Pac, uPzsl, TK003) [equivalent to Hasen Creek Fm.] [Overprint pattern 13] 5952 506 Pm Marble (Pm, KC002; KC006) 5955 506 13 Pzskm Skolai Group, marble, Early Permian to Middle Pennsylvanian (Pasm, BG002, Pzm, VA002; Pm, MC002; Jmb, Jmrb, Pls, TK002; ulPla, lPls, uPzdt, uPzsm, TK003, M, VA002) [Overprint pattern 13] 5960 461 JPzsgsQuartzite, phyllite, micaceous quartzite, marble, inferred Permian age (Pq, BD002) 5965 305 14 PDs Metasiliciclastic rocks and minor carbonate rocks (PDs, CY006) 5970 742 15 Pks Klondike Schist, poorly understood assemblage of metamorphosed pelitic/volcanic rocks and minor marble. (PzpCk, TC002; Pzqc, YT003; CPK, Yukon) [Overprint symbol 15] 5971 742 708Pksm Klondike Schist, marble. (CPK2, Yukon) [Overprint symbol 708] 5980 468 JPsu Serpentinized ultramafic (Pu, BD002; Pzp, CI002; MzPzs, MzPzp, EA002, Dmu, FB002) 5990 841 44 PDcs Black phyllite, possibly metamorphosed Cannery Fm. (MDph, SK005) 6000 704 708PDl Pennsylvanian, Mississippian, Devonian, light gray limestone PDl, BM002) [Overprint symbol 708] 6010 458 238PDsc Sheep Creek Formation and correlative largely siliciclastic units of the Mystic stratigraphic sequence (Permian to Devonian); Conglomerate of Mount Dall, Middle Pennsylvanian (Pad, TL002; PDs, MG002; PDs, uPzs, uPzac, MG003; PDs, LH004) [Overprint patter 6020 704 15 PaDcb Calico Bluff and Ford Creek Formations, undivided (PaDu, CY002; lPMc, MDf, EA002) [Overprint pattern 15] 6030 704 708PAl Crinoidal limestone (Cl, PE003; Pal, CR010) [Overprint symbol 708] 6031 704 708PAk Klawock Formation, clastic (Pak, CR010) [Overprint symbol 16] 6080 461 TrMicaChert and limestone, chiefly chert, Penn and Miss (Kc, RB002; MDc, RB003; RB005; TrDc, MD004; OP005; PaMc, MD002; TrMc, MD003; RB009; Mrc, TA019; IPMc, DL002; DL004; IPMc2, DL003; DL004; IPMc4, DL004; IPMc1, DL002; DL003; DL004; IPMc12, DL002; DL003; DL0 6090 458 16 PMn Nuka Formation (lPMn5, DL004; PMn5, MU002) [Overprint symbol 16] 6095 704 708PAsb Saginaw Bay Formation, unit to be abandoned (CDs, PE003; PA003) [Overprint symbol 708] 6110 241 PPagi Granitic plutons south of Denali Fault (MH002; Pag, MS002) 6120 506 14 Pat Station Creek Formation andesitic volcanic rocks (correlated with Tetelna volcanics), Early Permian? and Pennsylvanian (Ppav, HE002; Pzt, MH002; lPsmv, TK003; PPsc, MC002; PlPsc, MC003) [Overprint pattern 14] 6200 704 15 PMc Black carbonaceous metachert, quartzite, and siliceous or calcareous phyllite, commonly distictive silvery blue (phosphatic) bloom on weathered surfaces. Similar to and correlative with the Kuna Formation of Mull and others (1982) (PMc, BM002) [Overprin 6220 506 14 Pat Tetelna Volcanics, volcanic flows, etc., lower greenschist facies (Pat, MH002; Pzv, PPt, NB002; Pt, GU002) [Overprint pattern 14] 6230 241 238Pzi Metamorphosed intermediate igneous rocks (Pzi, AR002) [Overprint symbol 238] 6300 704 MDe Endicott Group, undivided. Unit includes the Hunt Fork Shale, Noatak Sandstone, Kanayut Conglomerate, Kekiktuk Conglomerate, and Kayak Shale. (MDe, BM002; Me, DP004; ML002) 6320 704 MDl Fossiliferous limestone, Miss. (ls, HC002[?]; Mko, Ml, BM002; Ml, SL002 TE002; Mko, Mko1, Mko2, Mko3; Mkoc3, DL002; DL004; Mko, Mko2, Mko3, DL003; Ml1, Mko3; Mko3e, MU002) 6325 704 16 Mlg Lisburne Group, includes Akmalik Chert (Ml, AR002; CH002; SP002; PaMl, PaMlu, PaMa, Pac, Ml, Ml?, Mll, PaMl?, AC002; Ml, Mlb, CO002; Mlch DL005; PaMl, DP002; DP004; ML002; Mlb, Mlr, Mlri, PaMap, HW003: PPMl, PaMa, PAMlc, KL002) 6328 704 14 Mlk Lisburne Group and Kayak Shale, undivided (PaMlk, ML002) 6330 706 13 Mk Kayak Shale (Mk, AR002; BM002, DP004; ML002; SP002) [Overprint symbol 13] 6335 742 PMl Younger limestones of Mystic stratigraphic sequence (Mississippian) (uMl, LH004) [Overprint pattern 348] 6340 704 14 Mls Iyoukeen and Peratrovich Formations, limestone, black chert, and black shale (Mi, JU002; SI003; Mp, CR010) [Overprint symbol 14] 6360 706 14 Mke Kekiktuk conglomerate (Mke, AR002; DP004; ML002; Mke, Mke?, SP002) [Overprint symbol 14] 6365 706 238Mkk Kayak shale and Kekiktuk conglomerate (Mkk, AR002) [Overprint symbol 238] 6370 706 15 Mc Quartz conglomerate (Mc, AR002) 6375 706 44 MDk Kayak Shale and Kanayut Conglomerate (MDk, CH002) [Overprint symbol 44] 6380 704 MDl Limestone, Mississippian to Devonian (MDl, OP002; CY002; Ce, CY005; MDm, BH002; Dl, BR002; MDl, MDue, BM002; Mu1, Mu2, Mu3, Mul3, Mus1, Mus3, DL002; Mu1, Mu2, Mu3, Mul1, Mus1, Mus2, Mus3, DL003; Mu1, Mu2, Mu3, Mul1, Mul3, Mul4, Mus1, Mus2, Mus3, Muls3, M 6390 461 Mc Chert, Mississippian (Mch, SP002) 6391 461 13 MDfl Ford Lake Shale, laminated siliceous shale and chert (MDf, CY002; Ms, ML002) [Overprint pattern 13] 6395 461 13 Mks Kurupa Sandstone (Mku, KL002) [Overprint symbol 13] 6400 704 13 Mlt Limestone and tuff (Mlt, BM002) [Overprint symbol 13] 6412 678 13 MDv Massive and pillowed basalt and other volcanic rocks (KCgg, RM002; BH002) [Overprint pattern 13] 6450 184 Mpm Pelly Mountains Suite, massive, medium to fine grained equigranular syenite; gradational to trachyte; intrusive equivalent to felsic volcanics of the Earn assemblage (MyP, YQL002) 6510 700 MDt Totatlanika Schist, metavolcanic and metavolcaniclastic rocks, Early Mississippian to Middle Devonian, (MDt, HE002; MM002; Mt, FB002; Pzsg, BD002; very tentatively unit Pzu, TC002) 6511 700 MDt? Totatlanika Schist?, metavolcanic and metavolcaniclastic rocks, Early Mississippian to Middle Devonian, (bc, FB002; PzpCgr, CI002; MDt?, KH) 6521 184 16 MDyao Augen gneiss and schist, Mississipian or Devonian intrusion age, Yukon-Tanana terrane (lga, MH002; PzpCa, BD002; Da, CI002; PzpCg, EA002; Mog, LG003) [overprint pattern 16] 6522 184 16 MDrao Augen gneiss and schist, Mississipian or Devonian intrusion age, Ruby terrane (Dao, TN003; Km, MZ002) [overprint pattern 16] 6523 184 16 MDaao Augen gneiss and schist, Mississipian or Devonian intrusion age, Arctic Alaska terrane (Kg1, SH002; Dgn, SH004) [overprint pattern 16] 6530 616 238Mgq Globe quartzite unit Similar to Keno Hill Quartzite in Yukon (Mg, LG002; Vitreous quartzite unit of MzPzaq, CI002; Mq, TN003) [Overprint pattern 238] 6540 516 MDcp Carbonaceous phyllite 6615 836 DSmdl Thin-bedded limestone (Dl, Sl, TL002; DOls, MM002) 6616 836 708Stl Point Augusta Formation limestone horizon within turbidite deposits (Sal, SI003; Stal, JU002) [Overprint symbol 708] 6617 836 14 Sab Heceta Limestone, reefoid limestone and algal boundstone in SW Alaska (Sab, TA007; Sch PE002; Sch, Khh, PE003; Shl, CR010) [Overprint symbol 14] 6618 836 708Stpc Polymictic conglomerate and olistostrome deposits associated with Silurian turbibidites and reefs (Schc, Stbc, Stbo, PE002; Kch, Koh, Schc, Scp, Stbc, Stbo, PE003; Shc, Shpc, Spc, CR010) [Overprint symbol 708] 6619 699 15 Stg Silurian turbidite deposits including the Bay of Pillars Formation, Point Augusta and Tidal Formation and related units (Stbg, Stpg, PE002; Tbh, Kbh, Stbg, Stpg, PE003; Spg, Spsv, CR010) [Overprint symbol 15] 6620 836 13 Spf Paradise Fork Formation and correlative units (Sls, MD002; TA007; Ssh, MG003; Stbl, PE003) [Overprint pattern 13] 6625 836 15 mSl Middle Silurian limestone (Sl, BN002) [Overprint symbol 15] 6630 706 Sta Point Augusta Formation argillite and chert (Staa, JU002; Sa, LH003) 6631 706 16 DSs Staney Creek sandstone, limestone and dolostone, shallow water facies rocks (DSs, CR010) [Overprint symbol 16] 6640 706 Ss Micaceous calc-sandstone (LH003) Gone 6650 706 708SCju Jones Ridge Limestone (early Cambrian to Late Ordovician) and Road River Formation (Silurian) (SCju, CY006) 6660 704 238Stc Terra Cotta Mountains sandstone, sandstone and graptolitic shale (uSsl, mSl, mSvs, mSs, MG002; mSs, MG003; mSs, LH004) [Overprint pattern 238] 6680 520 SZa Amy Creek unit, siliceous dolomite, chert, and basaltic greenstone, minor limestone, shale..., Silurian(?) to Late Proterozoic (SZa, LG002; PzpCb, CI002; pCa, TN003) 6681 520 SZa? Dolomite and argillite (DSd, CI002) 6685 570 13 SCb Black siltstone and phyllite (SCb, WI002) [Overprint symbol 238] 6690 520 14 SOt Descon Formation graywacke turbidites (SOdg, PE002; SOtdg, PE003; SOdg, CR010) [Overprint symbol 14] 6691 520 708SOl Descon Formation limestone (SOdl, PE002) [Overprint symbol 708] 6692 520 SOdcg Descon Formation conglomerate (SOdcg, CR005; Odsg, CR006; DE005; SOdcb, CR007; SOdc, CR010) 6693 520 13 SOds Descon Formation fine-grained sedimentary rocks [see also NSA 6820] (SOda, DE003; DE004) 6710 423 14 SOdr Descon Formation - Dacitic to rhyolitic volcanic rocks (SOdr, CR010; SOf, CR005; SOdsv, DE003; SOdr, pOwr, DE004; Odv, DE005) 6711 423 16 SOdv Descon Formation, andesite and felsite (Odv, CR006; DE005; SOda, CR010) 6712 423 44 SOdvm Descon Formation, basaltic to andesitic volcanic rocks (SOdbv, DE003; SOdb, DE004; CR010; SObl, CR010; Odb, ODs, CR006; DE005; "NW" KC004; CR004; SObl, SOdv, SOv, CR003; SOdv, CR005; SOdv, CR007; Sav, CR009) 6730 270 13 St Trondhjemite (St, Smt, KC002; Stj, CR010) [Overprint symbol 13] 6740 270 14 Sv Silurian volcanic rocks (Stpc, PE002; Stpc, PE002; Stpc, Stbv, PE003) [Overprint symbol 14] 6750 345 Sum Ultramafic rocks, southeast Alaska (SOpx, SOhb, CR010) 6760 270 15 SOgu Medium-grained biotite syenite and granite (SOdi, SOsy, SOgr, Sld, CR010) 6800 311 13 SOsv Metamorphosed extrusive, intrusive, and sedimentary rocks, undivided (SOu, KC002) [Overprint symbol 13] 6805 311 14 SOmi Metamorphosed intermediate and mafic plutonic rocks (SOui, KC002; SOmk, Omr, CR010) [Overprint symbol 14] 6815 836 13 SOm Marble and subordinate metavolcanic and metasediemntary phyllite and schist (m, KC002) [Overprint symbol 13] 6820 790 13 SOmd Fine-grained low-grade metamorphic rocks of the Descon Formation and Wales Group [see also NSA 6693] (SOca, CR005; Oda, CR006; DE005; pOwp, DE004; DSmk, CR010) 6825 423 15 SOgs Greenstone and greenschist, possible Descon association (Pzmv, MF003; SOb, CR005) [Overprint symbol 44] 6830 520 16 SOdsv Metamorphosed and hornfelsed Descon Formation schist and semischist (Pzmh, MF003) [Overprint symbol 16] 6831 520 708SOdm Marble, metamorphosed Decon Formation limestone (Pzm, JU010; SI004; SI006; JU007; MF004; SI003; Kch, JU002; Pzmm, SK002; MF003; SK010; Soc, SK016) 6900 838 13 Dnu Noatak Sandstone and phyllite, carbonate and clastic rocks of the Nakolik River, shale, Kugururok Limestone (Dn, Dnu, Dnl, Ds, Dk, Dl, BM002; Dw, Dn, Dbl[?], CS002) [Overprint symbol 13] 6901 700 14 Du Southeast Alaska undivided Devonian rocks [Overprint symbol 16] 6902 570 Dp Phyllite, slate, silicious siltstone, and argillite (Dps, KH002; DOs, KH004; Dp, BV002) 6905 704 Dm Ruby marble (unit Pzm, RB004; Pztbl, RB005) [Dubious age call?, reported in source as Paleozoic?] 6910 570 238Dtr Troublesome unit, rhythmically interbedded cherty argillite to chert and thin beds of slate, Devonian(?), also McCann Hill Chert (Dt, LG002; Pzvs, TN002; Pzc, CI002; Dm, CY002; EA002; Dvc, CH002) [Overprint pattern 248] 6911 458 14 Dsc Shale and chert of Mystic stratigraphic sequence (Devonian) (Dsc, LH004; DOs, BH004) [Overprint pattern 14] 6912 573 14 Dmo McCann Hill chert and Olgilvie Formation, undivided (Dmo, CY002) [Overprint pattern 14] 6913 573 13 DOmr McCann Hill Chert and Road River Formation, undivided (DOu, CY002) [Overprint pattern 13] 6914 838 14 MDkn Kanayut conglomerate and Noatak sandstone (MDkn, WI002) [Overprint symbol 14] 6915 838 15 Dk Kanayut Conglomerate (Dk, AR002; Dk, Dk?, SP002; MDk, BM002; MDk, Dkq, CS002) [Overprint symbol 15] 6916 838 16 Dkq Kanayut Conglomerate - Quartz arenite and quartz wacke member (Dkq, SP002; CS002; Dgw, CH002) [Overprint symbol 16] 6917 706 238MDkh Interlayered dark gray to black phyllite and calcareous phyllite. Unit is more siliceous than either Early Mississippian Kayak Shale or Late Devonian Hunt Fork Shale although it is lithologically similar to both. At present, these rocks are considered 6920 570 Dnr Quail unit, conglomerate, phyllite, calc-phyllite, siltstone, and sandstone, Late Devonian(?), also Nation River Formation of Charley River quad. (Dq, LG002; Dnr, CY002; Dn, EA002) 6921 570 14 Dnr? Calcareous clastic rocks; also Devonian sandstone and shale (Dss, BV002; Pzc, TN002) 6922 570 15 Dnr2? Quartz wacke (Pzw, TN002; KH003) 6923 573 15 Dnrc Conglomerate, Nation River Formation (Dnrc, CY002) [Overprint pattern 15] 6925 509 13 Dhf Hunt Fork Shale (Dhf, AR002; BM002; Dhf, Dhf(b), CS002; Dhf, Dhf?, Dhfs, Dhfs?, SP002; Dhf, Dhf?, Dhs, Dhs?, WI002; Ds, Dst, Dp, CH002) [Overprint symbol 13] 6927 700 708Dbc Beaucoup Formation, (Dbls, Dbsg, Dbcw, CS002; Dbc, Dbc?, Dbs, Dbs?, Dw, Dw?, Pzwv, WI002; Pzr, BM002; Dls, CH002) [Overprint symbol 708] 6928 700 13 Dpr Port Refugio Formation (Dp, CR003; Dpr, CR010) [Overprint symbol 13] 6929 836 16 lDl Late Devonian thin-bedded limestone (Dl, PA003; SI005; Dct, SI005) [Overprint 16] 6930 509 708DSl Limestone, Late Devonian (Dql, LG002; Dl, TE002; MU002) [Overprint symbol 708] 6931 458 13 DSml Carbonate rocks of the lower part of the Mystic stratigraphic sequence (Devonian and Silurian) (lDl, lDd, uDl, Dls, MG002; uDl, mDl, MG003; DOs(ls), HE002; MM002; lDl, uDl, LH004; uDl, LH003; Dl, NB002; DOs(ls), BH004; Dls, PE002) [Overprint pattern 13] 6932 836 708Dwl Wadleigh Limestone (Dw, Dkl, CR010) [Overprint 708] 6933 836 708Dbcl Black Cap Limestone and Cedar Cove limestone member () [Overprint 708] 6934 570 16 Dg Dark-greenish-gray fine-grained impure graywacke (Dg, BV002; Dsq, CH002) [Overprint symbol 16] 6935 520 13 Dcs Chloritic siltstone and conglomerate (Dc, AR002; Dqq, CH002) [Overprint symbol 13] 6936 573 15 Drl Cedar Cove Formation (Dsv, KC002; Dkkr, Dksn, Dkcb, CR010) [Overprint symbol 15] 6937 699 16 eDcg Karheen Formation and related rocks, conglomerate, Lower Devonian (Dkbn, Dkcg, CR010) [Overprint symbol 16] 6938 836 708eDl Kassan Limestone, part of Karheen (Dkl, CR010; Dcbl, MF003) [Overprint 708] 6939 573 14 Dkms Karheen Formation redbed facies rocks 6940 573 Dcb Cascaden Ridge, Beaver Bend combined correlative units, shale, siltstone, sandstone, conglomerate, and minor limestone, Middle Devonian (Dc, Dcg, Dq, LG002; Pzcg, Pzcc, CI002; Dc, CI003?, some chert CI002) 6944 836 DSl Limestone (Late Devonian to mid-Silurian) (Dls, KH002, Dl, KH004; CI002; Dlr, Dld, Ml, TN003; Pzl, BV002) 6945 836 Ds Schwatka unit -- Limestone and Ogilvie Formation of Clough (1980), Middle and Early Dev. (Dsl, LG002; CI003; Do, Dwl, CY002; Dl, RB002; DSl, CI002) 6950 902 708DSsk Skajit limestone (DSsk, AR002; SP002; DOs, CS002; DSk, WI002; Dsk, CH002) [Overprint symbol 13] 6951 836 DSol Dark gray to orange weathering limestone (see also 7360) (Dl; Dl?, SP002) 6952 836 14 DSca Barren Ridge limestone, calcarenite, calcareous siltstone, and limestone (DSl, MG002; MG003; LH004) [Overprint pattern 14] 6953 836 16 DSr Rendu Formation and related units, argillite and silty limestone turbidite (DSr, DSrt, SK002; Pzam, Pzaam?, Pzmt, Pzmt?, Pzmb, SK004; Pzam, SK011) 6955 836 708Dlc Lost Creek unit, lime mudstone and wackestone, Devonian and Silurian (DSl, LG002; Pzmr, TN003; Sl, BR002; Dl, CY002) [Overprint symbol 708] 6956 520 708DSls? Limestone, dolomite, greenstone, and chert (Pzl, TN002; Pzsl, KH002) 6957 520 708DSls (DSls, LH003) 6960 836 14 DSwc Whirlwind Creek Formation and unnamed correlative units (Late Devonian, Frasnian through mid-Silurian, Wenlockian), reefy limestone and dolomite (DSl, MD002; MM002; lDl, lDd, Sla, SDlw, MG003; SDlw(h), LH004; Pzl, SM002; DSab, LH003; DSw, RB009; DSbl, JU 6961 573 15 Dcg Conglomerate of the Kennel Creek Limestone (DSkc, JU010; SI003; SI006) 6965 836 DSt Tolovana Limestone, Middle Devonian to Early(?) Silurian, (DSt, LG002; FB002; KH003; KH004) 6966 790 DSt? Limestone, greenstone, and schist (Pzl, TN002) [Overprint symbol 708] 6970 573 DCpu Older strata of the Porcupine River sequence, undivided (DCpu, CO003) 6990 573 DCru Road River Formation, Hillard Limestone and other units, undivided (DCu, CY002; DCl, BR002; DOr, EA002) 6995 573 708DOl Thin-bedded to massive, fine-grained, limestone with local interbedded tuff and mafic volcanic rocks (DOl, GO002) 7000 678 44 Dvt Basaltic and andesitic flows, tuff, breccia, and volcanic conglomerate altered to greenstone, interbedded in Hunt Fork Shale (Dvt, CS002; Dv, Dg, CH002) [Overprint symbol 44] 7010 836 348Dsv Schwatka unit, mafic volcanic rocks, Middle and Early Devonian (Dsv, LG002; SOls, CI002) [Overprint pattern 348] 7015 836 348Dwv Woodchopper Volcanics, amygdaloidal basalt, pillow basalt, ..., equivalent to Schwatka unit? (Dw, Dwv, CY002) [Overprint pattern 348] 7020 678 15 lDv Freshwater Bay Formation and Kasaan Island Volcanics, Basalt and rhyolite with subordinate sedimentary rocks, Middle to Late Devonian (Df, JU002; SI003; Dprv, CR010) [Overprint symbol 15] 7021 678 16 Dv Basalt and rhyolite on Prince of Wales and Kasaan Islands and andesite associated with Black Cap Limestone (Dsj, Dc, Dkr, Dkp, Dka, CR010) [Overprint symbol 16] 7022 678 13 DSv Berg Mountain, largely mafic volcanic rocks (DSbv, DSbb, SK002; SK010; JU003; DSbb, DSbb?, DSbv, JU002) [Overprint symbol 13] 7030 678 14 Dcv Karheen Formation volcanic and hypabyssal rocks 7050 270 348Dgr Old Crow Suite, undivided (MLDO) [Overprint symbol 348] 7051 270 348Dgr Old Crow Suite granitic rocks: medium to coarsely crystalline leucocratic biotite granite, Old Crow, Schaeffer, Sedgwick, Ammerman, and Fitton granites (gr, DP004; ML002; MLDqO, YDM002; YOC002) [Overprint symbol 348] 7052 270 348Dsr Old Crow Suite granitic rocks: leucocratic syenite to hornblende nepheline syenite, Dave Lord syenodiorite (MLDyO, YOC002) [Overprint symbol 348] 7060 270 348Dsy Syenite, Chichagof Island, southeast Alaska, Alexander terrane [Overprint symbol 348] 7065 270 16 Dqd Quartz diorite, Prince of Wales Island, southeast Alaska (single pluton, part of mKgd, CR010) [Overprint symbol 16] 7080 270 348Ddg Diorite-gabbro (MzPzi, NB002) 7200 934 238DOb Metamorphic rocks, undivided. Includes carbonate rocks; quartzite and slate. Coeval with the Baird Group [DOb, BM002] (DOc, BM002; Dsq, Dmw, Dpm, Ds, Dg, CS002) 7204 509 15 Dgu Gambier Bay Formation, undivided, sedimentary and volcanic rocks, marble and recrystallized limestone, phyllite and semischist, and tuffaceous marlstone, pillow breccia, volcanic conglomerate, aquagene tuff, subordinate basaltic to andesitic pillow flows 7205 699 14 Dgv Gambier Bay Formation, sedimentary and volcanic rocks, marble and recrystallized limestone, phyllite and semischist, and tuffaceous marlstone, pillow breccia, volcanic conglomerate, aquagene tuff, subordinate basaltic to andesitic pillow flows (Dsv, PE00 7206 934 708Dm Gambier Bay Formation Marble (DSl, JU002; Pzm, JU004; SI005; Dgm, SI005; Pzam, SI007) [Overprint symbol 708] 7207 699 Dgg Gambier Bay Formation, pyrite-bearing garnet-chlorite-amphibole-quartz-feldspar schist and gneiss (Dgg, JU010) 7208 699 Dgs Gambier Bay Formation, homogeneous layered garnet-chlorite-quartz-feldspar schist and semischist ; with minor dark gray phyllite and chlorite-actinolite schist (Dgs, JU010) 7209 699 Dgp Gambier Bay Formation, dark gray locally pyritic and graphitic semischist and phyllite; some quartz-rich semischist and Retreat Group; black siliceous phyllite on Admiralty Island (Mzps, JU002; Pzcs, PzZr, JU004; SI005; Dgs, JU010) 7210 934 238DSba Baird Group; Massive light gray reefoid limestone and dolomite with local thin interbeds of calcareous phyllite (DSba, AR002; DOb, BM002; Dd, SL002; DZn, DP004; ML002) [Overprint symbol 238] 7220 509 708Dkm Kaskawulsh Group of Kindle, mainly marble (Pzk, MC002; Dkm, Pasm, Pas, BG002) 7230 902 14 Dpmc Phyllite and metaconglomerate (Dp, Dms, NB002) 7235 902 14 Dbs Thin bedded black, siliceous, carbonaceous phyllite and impure chert (Dbs, AR002) 7240 509 Dyv Fine-grained schistose volcanic rocks and phyllite, Devonian extrusion age, (hgv, MH002; Dmf, HE002; Pzk, BG002) 7242 509 Dy Yanert Fork sequence, thick sequence of marine metasedimentary and metavolcanic rocks, Late Devonian (unit Dy, Dy?, HE002) 7245 902 16 Dbl Black limestone, calcareous schist, and black siliceous phyllite, undifferentiated (Db, AR002) [Overprint symbol 16] 7250 184 MDyao Medium-grained granitic gneiss, Devonian intrusion age (lgr, jcg, mg, MH002; Dg, WI002; MzPzg, CH002; Pzg, BN002; KZ002; SO002) 7260 699 13 Dav Ambler metavolcanic and lesser metasedimentary rocks (Da, Da?, Dm, WI002; MzPzfm, WI003) [Overprint symbol 13] 7261 699 15 Davf Very light gray to brownish red weathering resistant schistose felsic volcanic rocks, Ambler sequence? (Df, SP002; Df, Df?, Dfm, WI002; MzPzf, SP003; WI003) [Overprint symbol 15] 7290 699 13 Dms Undifferentiated metasedimentary rocks, Late Devonian (Yanert Fork equivalent) (DSu, MM002) [Overprint pattern 13] 7291 699 13 Dms? Undifferentiated metasedimentary rocks, Late Devonian (DSu?, MM002 [Overprint pattern 13] 7300 699 13 Pzsc Metasedimentary rocks, Late Devonian (Dms, HE002) [Overprint pattern 13] 7315 699 708Pzcs Calcareous schist (Pzcs, Pzc, AR002; Dac, Dcm; CHoo2; DCks, KZ002; KZ003; SO002; SO004; Pzca, SP002; PzPcs, WI002) [Overprint symbol 708] 7320 699 13 Pzsc Metabasalt and subordinate metasedimentary rocks, Late Devonian (Dmb, HE002; jcv, MH002; Dg, NB002) [Overprint pattern 13] 7325 678 Dmgs Serpentinite, basalt, chert and gabbro, Late Devonian (Dsb, HE002; MM002) 7330 612 Dmg Metagabbro, Late Devonian(?) (HE002) 7350 902 15 Pzsb Light-brown weathering calcareous schist interbedded with gray quartz-mica schist and marble. Brooks Range schist belt. (Dgs, Dgh, Dqm, Dqs, CH002; Dcs, WI004) [Overprint symbol 15] 7360 902 DSm Orange weathering chloritic marble Brooks Range schist belt (see also 6950, 6951) (DSom; Pzcm, AR002; DSso; DSso?; Pzmsm, SP002; DOtm, BM002) 7400 902 15 DPzmp Pelitic, calcareous, and quartz-feldspar metasedimentary rocks, Devonian or older, (Pzs, NB002) [Overprint symbol 15] 7402 509 14 Dys Fine-grained, schistose metasedimentary and metavolcanic rocks, Devonian or older, (hgs, MH002) [Evidence suggests that this unit is most likely Triassic, at least in its western exposures and correlates with similar units all along the north side of the 7450 573 16 DOtu Metasedimentary and metavolcanic rocks of Tukpahlearik Creek, undivided (BM002; SE003) [Overprint 16] 7451 666 DOtq Carbonaceous quartzite and quartz conglomerate of Tukpahlearik Creek (DOtq, BM002) 7453 707 DOtmq Marble and quartz schist of Tukpuhlearik Creek (DOtmq, BM002) 7454 509 44 DOtpg Pelitic schist and greenstone of Tukpaklearik Creek (DOtpg, BM002) [Overprint symbol 44] 7455 305 DOtp Pelitic schists of Tukpaklearik Creek (DOtp, BM002) [Overprint symbol 16] 7500 934 13 OCc Carbonate rocks (OCc, BM002) 7510 934 Olss Tcherskidium-bearing limestone (TA007) 7515 934 15 Os Brown and gray 'chippy' shale, silty shale and silicified limestone (TA007) [Overprint symbol 15] 7520 836 16 Ont Novi Mountain and Telsitna Formations, and unnamed correlative units, massive dolomite and limestone, Late to Middle Ordovician (Od, Osl, MD002; Ol, RB002; OCl, OCm, Ol, mOl, uOll, uOl, lOlb, MG003; Ont, RB009) [Overprint pattern 16] 7525 934 16 OCjr Jones Ridge Limestone, massive oolitic, typically silicified limestone (OCjr, CY002; COl, BR002) [overprint pattern 16] 7530 934 14 OChl Hillard Limestone (OCh, EA002) [Overprint pattern 14] 7535 SOdl Limestone and dolomitic limestone (SOdl, TE002) 7540 Od Pink to light gray weathering, gray to tan fine-grained dolostone with distinct color mottling (Od, BN002; SO002; Oum, Oshl, TE002) 7541 Oshd Limestone and shale (Oshd, TE002) 7550 Oim Impure chlorite marble (Oim, BN002; SO002) 7551 Oimh Impure marble (Oimh, BN002; SO002) 7560 902 Oab Algal boundstone and lime mudstone (TA007) 7570 790 708Ols Lime mudstone (TA007) [Overprint symbol 708] 7580 836 15 SCpl Post River Sandstone and Lyman Hills Formations and correlative units, silty limestone and siltstone, Early Ordovician (OCsl, KH002; pOlp, KH004; SOls, LH003; lSl, SOsh, OCls, MG002; Clm, SOsh, OCls, MG003; Pzc, MD002; Oc, TL002; OCls, SOsh, LH004; part 7581 10 15 Oc Chert and phyllite, Telida sub-terrane of Munchumina terrane (part Pzc, MD002; Oc, MD005; RB009) [Overprint pattern 15] 7610 520 348Ofc Fossil Creek Volcanics, undivided -- Alkali basalt, agglomerate, and volcaniclastic conglomerate (unit Ofv, Ofs, LG002; SOs, CI002; Ofc, TN003) [Overprint pattern 348] 7620 520 348OCv Andesitic to basaltic volcaniclastic rocks and local tuffaceous phyllite, gabbro, and diabase, and black phyllite (OCv, WI002) 7650 520 Ogd Granodiorite on Prince of Wales Island (Og, CR002; Ogb, CR003; Sa, Sgd, Sk, CR006; DE005; Oqd, Ofgd, Od, Ogd, Oqgd, Oqd?, DE003; Oqd, Odi, Ogd, CR010) 7700 OCx Interlayered pure and impure marble, quartz-graphite schist, and lesser pelite, calc-schist, and mafic schist (OCx, BN002; KZ002; SO002) 7701 OCxh Predominantly marble and quartz-graphite schist above biotite grade; upgraded equivalent of mixed unit [OCx] OCxh, BN002) 7710 520 15 Och Ordovician chert, including Livengood Dome Chert, chert, siliceous slate and rare greenstone and limestone, Late Ordovician (protolith) (unit Old, LG002; CI002; nc, FB002; Oc, TN002; KH002; KH003; DOc, KH004; MM002; Pzlc, Olc, TN003) [Overprint pattern 1 7711 616 Oldl Limestone marker bed within Livengood Dome Chert (Pzll, TN003) 7720 Ocs Casadepaga schist (Ocs, BN002; KZ002; SO002) 7721 Ocsh Calcareous and mafic schist (Ocsh, BN002; SO002) 7750 Pzim Impure marble (Pzim, BN002; KZ002) 7800 616 14 OCmi Metaigneous and minor metasedimentary rocks (Or, Ofd, DE003) 7970 616 13 Ca Adams Argillite (Ca, EA002) [Overprint pattern 13] 7971 616 15 Cqa Quartzite and argillite (pCq, EA0020 [Overprint pattern 15] 7980 616 16 Cf Funnel Creek Limestone (Cf, EA002) [Overprint pattern 16] 7990 306 13 CZtu Tindir Group, upper part, Early Cambrian and Late Proterzoic argillite, quartzite, dolomite, dolo-arenite... (CZtu, CY002; pCp, BR002) [Overprint pattern 13] 8000 301 708CZwl Wickersham unit -- Limestone, Early Cambrian and Late Proterozoic (CZwl, LG002; unk, CI002) 8005 301 708mCa Avalanche, light grey, buff, yellow, and orange weathering, crypto grained dolomite, silty dolomite, dolomitic siltstone and dolomitic mudstone (mCA, YFR002; YLN002) [Overprint symbol 708] 8006 616 13 mCh Hess River, shale, black, pyritic, unfossiliferous; occurs as interstratified thick units of black calcareous shale and rusty black shale (mCH, YBP002; YNL002) [Overprint symbol 13] 8007 301 708mCr Rockslide, platy calcareous shale and silty, dark grey fine- to crypto-grained limestone; minor thin beds of light brown to grey weathering platy dark crypto-grained limestone and rare bands of buff dolomite (mCR, YLN002; YSM002) [Overprint symbol 708] 8010 306 CZhy Hyland Group, consists upwards of coarse turbiditic clastics, limestone, and fine clastics typified by maroon and green shale; includes scattered mafic volcanic rocks (PCH, YBP002; YCR002; YDW002; YFC002; YFR002; YLR002; YLS002; YNC002; YNR002; YTY002; Y 8011 306 CZnp Neruokpuk, turbiditic sandstone, quartzite, grit, and pebble conglomerate interbedded with siltstone and lesser argillite (uPCN, YDM002; YHI002) 8012 306 CZng Neruokpuk, fine to coarse sandstone, grit and pebble conglomerate, poorly sorted, turbiditic, locally feldspathic; siltstone and slaty argillite interbeds; local maroon, green and Oldhamia bearing slate in upper part (uPCN2, YDM002; YHI002) 8013 306 16 CZu Sedimentary rocks, undivided (CZu, CY006) 8014 602 708Cls Medium- to thick-bedded, commonly light-gray to dark-gray lime mudstone (Cls, TA008) 8015 301 708Cs Middle or lower Cambrian thin-bedded platy limestone associated with coarse-grained silciclastic sandstone and granule conglomerate, possible shale (Cls, TA008; Sleetmute A-2) 8250 640 CZum Ultramafic and mafic rocks and greenstone, Cambrian and/or preCambrian (CZum, LG002; Pzug, CI002; pCl, BR002) 8300 306 CZw Wickersham unit -- Grit, Early Cambrian and Late Proterozoic (CZw, LG002; part of PzpCa, CI002; pCw, TN003; PzpCs, MG002; Cqs, KH002; Cal, Pzcs, KH003; PzpCq, MD002; PzpCs, PzpCq, PzpCp, MM002) 8310 301 CZwa Wickersham unit -- Maroon and green argillite, Early Cambrian and Late Proterozoic (unit CZwa, LG002; ng, FB002; Cal, TN002; western exposures of unit PzpCa in part, CI002) 8340 836 DZn Undivided shallow marine carbonate units of Holitna Basin area, late Proterozoic to Devonian (Pzh, LH004; Pal, TA002; DSab, TA005; DOl, GO002; major part Pzl, SM002) 8350 836 238CZds Oolitic limestone, Khuchaynik Dolomite of Babcock and others, Big River Dolostone of Babcock and others, Windy Fork Formation of Babcock and others (XCl, XCd, Xmso, MG003) [Overprint pattern 238] 8430 616 ls Various limestone bodies (unk, CI002; pClt, EA002) 8440 306 PzZl Sedimentary and igneous rocks corresponding to the Livengood sequence of Weber and others (1992) (PzZl, YFB) 8441 306 13 PzZl Sedimentary and igneous rocks corresponding to the Fairbanks-White Mountains sequence of Weber and others (1992) (PzZw, YFB) 8450 640 MzZum Mafic igneous rocks, Paleozoic and/or Late Proterozoic (PzZm, CI003; LG002) 8500 303 PzZi Meta-intrusive rocks of intermediate composition (BM002) 8600 133 995YZnm Nixon Fork metamorphic basement, undivided (part of mca and mcb, RB002; PzpCm, RB003; part of bu, KH00?) [Overprint pattern 995] 8601 306 998PzZrqsRuby quartz-mica schist (Pzc, BV002; part of mca, RB002; PzpCs, MD003; RB005; Dbs, CH002; Pzs, Pzbs, CS002; Pzl, KH003; PzpCs/TrMc, OP002; TrMs, OP003; PzpCsq; TN002; Stippled areas of Pzqs, TN007; PzPs, RB009; Dbs, CH002) [Overprint symbol 998] 8602 306 PzZs Quartz-mica schist. Assigned to Arctic Alaska terrane (qm, uqm, AR002; PzZs, AR003; SP003; Pzus, Pzqms, Pzqms?, Pzis, SP002) 8605 303 14 PzZk Mixed schists of the Kallarichuk Hills, undivided. Assigned to Seward terrane (PzPku; PzPkc; PzPcb, BM002; PzZu, BM003; Pzs, SE002; Pzp, SH002) [Overprint symbol 14] 8606 303 15 PzZss Siliceous schist of the Kallarichuk Hills. Assigned to Seward terrane (PzPks, BM002) 8610 133 708YZnc Calc-schist and impure marble, early Paleozoic or preCambrian (unit PzpCc, MD002; Zc, RB009; very tentatively pCl, GO002) [Overprint symbol 708] 8615 836 13 Pzydm Dolomite and marble (PzpCd, CI002; PzPnm, AL003) [Overprint symbol 13] 8620 836 13 Pzrm Metamorphic complex, crystalline limestone, Paleozoic (Ord-Dev) or preCambrian (mcl, RB002; NL002; PzpCc, NL003; Pztbl, RB004) [Overprint symbol 13] 8625 339 PzZm Metamorphic complex, schist, crystalline limestone, quartzite, greenstone, slate, and phyllite (mc, RB002; NL002; PzpCs, OP002; also 2 polygons shown as PzpCs or TrMc on OP002) 8626 339 13 PzZas Metamorphic rocks, Alexander terrane (PzpCm, PE002) [Overprint symbol 13] 8630 136 PzZysaPelitic schist, early Paleozoic or preCambrian, includes Chena River sequence (PzpCs, CI002; PzpCm, CY002; bc, FB002; lgs, MH002; Pzs, PzpCsq, BD002; PzpCb, EA002; part PzpCb, TC002; PzPns, AL003; TKbg, TR003; part TKbg, TR005)) 8632 341 PzZpg Sillimanite gneiss subunit, pelitic schist (unit PzpCs, CI002) 8633 306 996PzZaqsPelitic and quartzose schist sequence (PzpCp?, MM002) [Overprint symbol 996] 8640 133 15 YZns Pelitic schist of Nixon Fork basement (PzpCp, MD002) [Overprint symbol 15] 8641 133 14 Zq Quartzite, grit, and argillite (PzpCs, MD002) Is this Wickersham? 8650 341 238PzZmc Metamorphic complex, schist and quartzite with some crystalline limestone, younger unit, Paleozoic (Ord-Dev) or preCambrian (PzPlg, ID002; PzpCku, SE003) 8660 337 14 PzZms Mafic schist (PzpCm, CI002) 8665 337 15 PzZyv Metabasite, massive mafic semischist and agmatite in the Coast Mountains (TKhg, JU002) [Overprint symbol 15] 8700 133 16 YZnv Felsic metavolcanic rocks of Nixon Fork basement (PzpCv, MD002) [Overprint symbol 16] 8710 512 Ynqd Meta-quartz diorite (ira, RB002; pCm, RB007) 8720 512 13 CZog Kaigani, False Point Retreat, and Bronaugh Islands plutons (orthogneiss) (Cqd, Cdi, Cgb, Cmgi, CR010; JU, KC) [Overprint symbol 13] 8721 136 15 Cmgo Metamorphic rocks of eastern Prince of Wales Island (Cmpw, CR010) [Overprint symbol 15] 8750 303 PzZsv Undivided Wales, Retreat Groups, and Four Winds Mountain metamorphic rocks (PzPEs, PzPEw, CR003; CZsv, CR005; Wpmg, CR006; DE005; PzpCw, CR008; wsl, CR009; SOk, pOw, DE003; pOws, pOwu, DE004; Pzsp, Mzps, JU002; PzSm, KC009; SOua, SOug, KC010; PzZr, SI005 8751 303 13 PzZq Wales, Retreat Groups, and Four Winds Mountain metamorphic rocks semischist and black quartzite (CZwsc, CR005; Wss, Wp, CR006; DE005; PzpCwcs, PzpCwb, CR008; Pzq, SI005; Pzmv, Pzsv, SK005; Pzs, SK006) [Overprint symbol 13] 8752 303 708PzZc Wales, Retreat Groups, and Four Winds Mountain metamorphic rocks marble (CZwm, CR002; CR010; PzPEwm, CR003; D, Wpl, Wm, Wdm, CR006; DE005;PzpCwm, CR008; wl, CR009; pOwm, DE004; Mzm, JU002; Pzm, SK004; SK006) [Overprint symbol 708] 8753 136 13 PzZf Wales, Retreat Groups, and Four Winds Mountain metamorphic rocks metafelsite (CZwf, CR005; Kh, Ws, CR006; DE005; pOwd, DE004) [Overprint symbol 13] 8754 303 14 PzZmv Wales, Retreat Groups, and Four Winds Mountain metamorphosed mafic volcanic rocks (CZwv, CR005; Kah, Wg, CR006; DE005; PzpCwg, PzpCwgc, PzpCwh, CR008; wg, CR009; CZwgb, CR010; Pza, SI005; Pzmb, SK005; Pzmb, Mzb, SK006) [Overprint symbol 14] 8801 136 16 PzZrpgGneiss and quartzite of the Ruby crystalline complex, Paleozoic or preCambrian (PzpCn, MZ002; PzpCqg, TN003; PzpCg, PzpCsg, RB004; Pzqg, BV002; MzPkc, RB009) [Overprint symbol 16] 8802 136 13 PzZypgGneiss, schist, and quartzite of the Yukon-Tanana crystalline complex; Pelly Gneiss in Yukon in part (PzpCs and quartzite subunit, CI002; PzpCg, BD002; part PzpCb, TC002; MzPzbg, PE002; TKbg, PE003; PzXgs, PE004; SD005) [Overprint symbol 13] 8803 136 44 PzZcg Nisling Biotite gneiss 8804 303 16 PzZbg Nisling Schistose polymictic conglomerate 8850 303 PzZh Metasedimentary and metaigneous rocks of the Hammond terrane, Brooks Range, lumping of many otherwise defined units (PzpCh, YFB) 8852 136 PzZm Metamorphic rocks, lenses near Kobuk and Victoria Creek fault systems, amphibolite facies (PzpCm, YFB) 9010 306 Zt Pinguicula/Fifteen Mile (Lower) and Tindir Group, lower part (muPPFu, mPPFl, Yukon; muPPFu1, mPPFl1, YLS002; YNR002; muPPFu2, mPPFl2, YDW002; mPPFl3, YOG002; mPPFl1, YNC002; YSR002; YWR002) 9020 306 14 Ytl Tindir Group, lower part, stromatolitic limestone (Ytl, CY002; EA002) [Overprint symbol 14] 9021 306 15 Yts Tindir Group, dolomitic sandstone and shale member (Yts, EA002) [Overprint symbol 15] 9040 640 Ytb Tindir Group, basalt and red beds member (Ytb, EA002) 9041 640 Ytb? Greenstone (pCg, EA002) 9045 608 Zgr Granitic rocks, preCambrian(?) (pCg, BR002; pCgr, SP002; Pi, BM002) 9050 640 Zbi Basic intrusive rocks (pCi, BR002) 9110 306 Zwg Grit, Late Proterozoic, bimodal quartzite, gray and olive-gray greenschist facies argillite (Zwg, LG002, PzpCgq, CI002) 9120 616 708Zs Dolostone, limestone, orthoquartzite, and minor chert (Zs, TA008; Sleetmute A-2) 9150 343 15 mPw Wernicke Breccias: Hematitic and dolomitic breccia and related metasomatized country rock; breccia contains variably altered rotated siliceous and carbonate clasts (Wernicke Supergroup) and minor dyke rock; breccia and metasomatites enriched in Cu, Co, 9160 305 708lPg Gillespie Lake Gp.: Dolostone and silty dolostone, locally stromatolitic, locally with chert nodules and sparry karst infillings, interbedded with lesser black siltstone and shale, laminated mudstone, and quartzose sandstone; local dolomite boulder cong 9170 305 lPq Quartet Gp.: Black weathering shale, finely laminated dark grey weathering siltstone, and thin to thickly interbedded planar to cross laminated light grey weathering siltstone and fine grained sandstone; minor interbeds of orange weathering dolostone in 9180 305 13 lPfl Fairchild Lake Gp.: Lower: greenish grey weathering calcareous laminated siltstone, grey weathering fine grained sandstone, and minor brown weathering carbonate, ripple cross-laminated; upper: siltstone, dolomitic siltstone, and dolostone (lPFL, YDW00 9210 10 348mPhr Hart River, undivided Mafic volcanic flows and and their possible intrusive equivalents (mPH, Yukon) [Overprint symbol 348] 9211 10 348mPhv Hart River Volcanics: mafic volcanic flows, generally massive and fine-grained, locally pillowed (mPH1, YLS002; YPR002) [Overprint symbol 348] 9212 10 348mPhs Hart River Sills: resistant dark weathering diorite and gabbro sills and dikes (mPH2, YDW002; YLS002; YNC002; YNR002; YOC002; YPR002; YWR002) [Overprint symbol 348] 9213 10 348mPkc Khose Creek Volcanics: basic to intermediate volcanic flows and aquagene tuffs (mPH3, YNC002) [Overprint symbol 348] 9300 303 13 PzZma Metasedimentary and metavolcanic rocks of Mount Angayukaqsraq (Psv, BM002) [Overprint symbol 13] 9320 132 PzZyqsGreenschist facies muscovite chlorite schist, quartzite and phyllite [Fairbanks schist unit - undivided] (Zf, LG002; PzpCq, CI002) 9321 132 PzZyqsFairbanks schist unit - Cleary subunit, white felsic schist, micaceous quartzite chloritic or actinolitic greenschist, greenstone and marble (Zfc, LG002, magnetic chlorite schist subunit of unit PzpCqm, CI002) 9322 132 996PzZaqsPelitic and quartzose schist of the Alaska Range (bc, FB002 (southern part); ms, jcs, MH002; PzpCp, HE002, MM002; Pzsv, TL002) [Overprint pattern 996] 9323 132 PzZyqsQuartzite subunit of quartzite and quartzitic schist (PzpCq, CI002) 9324 132 708PzZyqsCalc-silicate and marble subunit of quartzite and quartzitic schist (PzpCq, CI002) [Overprint symbol 708] 9325 132 997PzZrqsPelitic and quartzitic schist of the Ruby terrane (PzpCs, MZ002; ira, mc, RB002; PzpCm, RB003; RB004; Pzs, BT002; PzZs, BT003; Pzs, Pzq, BV002; TN003; PzZs, WI003) [Overprint pattern 997] 9326 132 PzZyqsGreenschist subunit of quartzite and quartzitic schist (PzpCq, CI002) [Not found yet on map.] 9327 132 13 PzZyqsQuartzitic and pelitic schist of the Yukon-Tanana crystalline complex (bc [northern part], FB002; PzpCs, PzpCsq, BD002; PzZng, AL003; part TKbg, TR005; PzZng?, SD013) 9400 343 Xi Idono Complex, Early Proterozoic, metaplutonic rocks, amphibolite, and minor metasedimentary rocks (ID002) 9410 pCg Includes coarse-grained gabbro, diabase and altered equivalents which locally are garnet-glaucophane rocks. Of two ages (pCg, TE002) 9415 pCsg Slate of the York region, slightly to moderately metamorphosed graphitic siltite, slate, graywacke, and calcareous siltite. (pCs, TE002). Also 29415, Slate of the York region, green-weathering chloritic graphitic siltite (pCs) near mafic intrusive rocks 9420 343 Xo Amphibolite facies orthogniess and minor amphibolite and pelitic schist. Kanektok or Kilbuck terrane (Xo, BH002, pCk, GO002; pCm, BH003) 9425 pCn Nome Group undifferentiated; chloritic schists and marble schists (pCn, TE002) 9426 pCne Nome Group, chlorite-epidote-amphibole schists, intensely deformed, locally graphitic; retograded blueschist facies rocks locally; subordinate schistose limestone (pCnc, TE002) 9427 pCnl Nome Group, dark schistose limestone intercalated with subordinate chloritic schist (pCnl, TE002) 9430 pCmu Kigluaik Group, undifferentiated (pCmu, TE002) 9450 pCm Coarse-grained marble, locally contains mica and either olivine or monticellite (pCm, TE002) 9460 pCb Tigaraha Schist, biotite-garnet schist (pCb, TE002) 9461 pCbm Marble and calc-silicate rocks intercalated in Tigaraha Schist (pCbm, TE002) 9470 pCgn Orthogneiss (PzpCo, BN002; SO002; pCgn, TE002) 9480 pCgu Biotite-hornblende-quartz-plagioclase paragneiss (pCgu, TE002) 9490 pCgl Quartz-biotite-plagioclase-hornblende paragneiss and local calc-silicate rock (pCgl, TE002) 10000 Completely unknown 10100 Clasitc sedimentary rocks 10400 Carbonate sedimentary rocks 10800 Chemical sedimentary rocks 11000 Volcanic rocks 11400 Plutonic rocks 11800 Hypabyssal rocks 12000 Low-grade metamorphic rocks 12500 High-grade metamorphic rocks 12600 High-grade metamorphic rocks, carbonates 12950 Hornfels and migmatite 2000044 Hornfelsed zones. (TKhf, RM004)