@ÁSYMBOLNOVERPRINTNNSACLASSNLABELCDESCRIPTIOCþ 5 99 bu Bedrock of unknown type or age (Rubble of metasiltstone and chert, KH002; KH004; bu, OP002; MM002) 0 98 nm Areas not to be filled that lie within coverage, typically not mapped (bu, BV002) 18 100 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 0 101 g Ice fields or glaciers (g, AN002; Qg, MG002; Oi, PE003) 740 102 Water (streams, lakes, ocean) 18 104 Qad Avalanche deposits 18 105 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 18 106 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) 18 107 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 18 108 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) 18 110 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) 18 111 Qac Abandoned channel deposits (Qfy, Qfo, KT002; MD002; MZ002; Qab, BD002; FB002; LG002; Qfo, NL003; ac, MK003; Qab, DI005; Qac, CG003; CG004; TA015) 18 112 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) 18 113 Qsw Swamp deposits (Qs, FB002; TC002; Qsp, BD002; Qrs, RM002; Qs, Qsu, LG002; Qsw, DI005; sw, CG003) 18 115 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) 18 116 Qes Estuarine deposits (Qes, CB003; DI002; Qe, HP002; MA002; Qf, NR002; es, MK003; Ql, CV003?) 18 117 Qmt Marine terrace deposits (Qmt, CB003; CG004; PM002; UG003; UG004; Qtg, AD002; mt, CG003; MK003) 21 120 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 18 121 Qfl Loess, Fairbanks loess (unit Qf, FB002; Ql, BD002; BR002; BV002; CI002; CY002; KH003; TN002; Qlc, LG002; Qsw, RM002) 18 122 Qsu Frozen silt, undifferentiated (Qsu, FB002; Qs, Qsu, CI002; Qs, BH003; BN002; KH002; KH004; KZ002; RM002; SO002; Qsp, MG002; RM004) 24 125 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 24 126 Qsg Superglacial drift (Qsm, BG002; CV003; MM002; Qsg, CG004; sg, CG003; Qsg, MC004) 24 127 Qrg Rock glacier deposits (Qr, LH002; NB002; SP002; TL002; TC002; Qrg, BG002; DI005; KN003; MC003; MG002; RM004; rg, MK003; CG003) 24 128 Qsf Solifluction deposits (Qsf, KH002; Qsm, BV002; Qs, MC003) 24 129 Qek Esker deposits (DI005) 24 130 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) 24 131 Qho Outwash deposits, Neoglaciation (Qgo, UK002; no, MK003; Qno, CB003; Qoal, MC003; ao, CG003) 24 135 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 24 136 Qwr Riley Creek glaciation, late Wisconsin (Qt3?, TN002; KH003; Qg3, SM002; Qblik, CG004; PM002; UG003; UG004; blik, CG003; MK003; Qrc2, Qblik, CB003) 24 137 Qw2 Till (unit Qt2, TN002; KH003; Qg2, SM002; Qbln, CG004; LC005; PM002; UG003; UG004; bln, CG003; MK003; Qrc1, Qbln, CB003; Qbn, IL003; ) 24 138 Qw1 Till (unit Qt1, TN002; KH003; Qg1, SM002; Qblil, CB003; CG004; LC005; PM002; TA015; UG003; UG004; blil, CG003; MK003; Qwg, MC003; Qbil, IL003) 24 140 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, 24 160 Qrd Rock-defended terraces (Qb, TN002; KH003) 24 161 Qat Altiplanation terraces (Qat, TN002; KH002; KH003) 24 13 190 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 24 13 195 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] 24 14 200 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] 24 14 210 Qmio Outwash older than Wisconsin-age (unit Qdo, FB002; Qdlo, BD002; Qof, TC002; Quo; DI002; TA002; Qjho, CG004; jho, CG003) [Overprint pattern 14] 24 15 220 Tmp Pliocene(?) glaciations (Qbm, FB002; Tg, NB002; QTg, MG002; Qom, TC002; Qsb, CB003) [Overprint pattern 15] 21 280 QTs Surficial deposits, undivided (ID002; BR002) 21 282 QTmb Semiconsolidated marine beach deposits (Tc, AD002; QTs, GO002; HG002) 21 285 QTg High-level gravel (QTg, BV002; KH003; LG002; MD002; TN002; Tc, TC002; QTkg, BN002) 24 15 290 QTf Faneto Formation (AT002) 21 295 Qpm Placer and anthropogenic deposits (Qp, ID002; Qg, LG002; FB002) 410 13 300 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 12 301 Qw Wrangell Lava, younger part (NB002; Qdf, Qsf, GU002) 12 305 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) 12 310 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) 12 311 Qafd Ash-flow and ash-fall deposits (Qafd, CB003; Qap, MK004) 12 312 Qdf Debris-flow deposits (Qdf, Qvg, CB003; TY005; Qsdf, GU002; Qda, Ql, UG100; df, CG003) 12 313 Qmf Mudflow deposits (Qar, IL002; mf, CG003) 12 314 Qav Volcanic avalanche deposits (Qav, CB003; Qda, GU002) 12 316 Qshc Hyaloclastite or aquagene tuff (unit Qsh, GU002) 12 320 Qcs Cinder and spatter cones (Qcs, CB003; CG002; cs, CG003; Qbc, FB002; GU002; Qkr1, Qkn2, NI003; Qc, UK002; Tmt, AD002) 12 322 Qed Explosion debris (Qp, UG100; CG005) 12 330 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) 410 16 350 QTb Basalt (BG002; BR002; CA002; KT002; NR002; RM002; SE002; SH002; TA003; TC002; UL002; Tb, CH002; QTvb, QTvo, QTv, CR010) 78 400 Qi Intrusive rocks, undivided (Qi, CB003; PM002; Qdc, Qsi, GU002) 78 401 Qvd Dacitic to rhyolitic domes (Qvd, CB003; Qdd, Qdr, Qsr, Qcr, GU002; Hvcp, TY005; Qr, UK002; Qad, MK004; Qwr, NB002; dap, CG003) 78 402 Qanp Andesite plug domes (Qva, UK002; Tmtv, Td, AD002; Qld, UG100; anp, CG003; Qv, KN009) 78 403 Qds Radial dike swarm and plug (unit Qcd, GU002) 410 450 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) 410 451 QTa Andesitic lava (QTa, KH002, TN002; Tsl, AD004; QTwi, QTwt, NB007; QTma, NB108; QTw, RI003) 410 455 QTw Wrangell Lava (VA002; MC002; NB002; QTu, Qwf, Qnf, GU002) 78 13 460 QTi Intrusive rocks (QTi, VA002; UN002; QTvp, QTai, UK002; Tpp, AD002) [Overprint symbol 13] 78 13 462 QTqk Quartz keratophyre dikes (AT002) [Overprint symbol 13] 78 14 463 QTad Porphyritic dikes and stocks of hornblende andesite and dacite (AT002) [Overprint symbol 14] 78 13 465 QTva Wrangell Lava, rhyodacite and rhyolite domes and associated pyroclastic rocks (QTwr, NB002; Qwd, QTi, Qni, GU002) [Overprint symbol 13] 410 470 QTva Quaternary and/or Tertiary pyroclastic flow deposits (QTp, PM002; QTap, UK002) 39 490 QTc Quaternary or Tertiary metamorphic rocks, particularly in Mt. Dana area on Port Moller map (QTc, PM002; QTvq, UK002) 88 500 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) 81 530 Tmr Milky River Formation (Tmr, CG002; CG004; PM002; UG002; UG004; Ts, AD002; Tvs, CB003) 85 13 540 Tsf Sterling Formation (Ts, SV002; Tps, TL002; Tks, KN002) [Overprint pattern 13] 85 14 545 Tkb Beluga Formation (Tb, SV002; Tkb, TY002; TY005) [Overprint pattern 14] 85 550 Ttg Tugidak Formation, (Tp, KD002; Ttg, KD003) 85 560 Tk Kenai Group, undivided (TL002; KN005) 37 570 Tn Nenana Gravel, Pliocene and Miocene (HE002; MH002; FB002; BD002; KH004; MM002) 37 571 Tn? Nenana Gravel? (MM002) 85 572 Tta Tachilni Formation, Chuniksak Fm. (Tta, CB003; Tch, AT002) 91 573 Tbl Bear Lake Formation (Tbl, CG002; CG004; PM002; UG002; UG004) 81 13 580 Tnc Narrow Cape Formation (Tms, KD002; Tnc, KD003; KD006) [Overprint symbol 13] 81 14 590 Tun Unalaska Formation (Tu, UN002) [Overprint symbol 14] 85 15 600 Tty Tyonek Formation, undivided (Ttk, AN002; Tt, SV002; Tkt, TY002; TY005; Tk, TY004) [Overprint pattern 15] 85 15 600 Ttyc Tyonek Formation, Conglomerate member (TL002) [Overprint pattern 15] 85 15 600 Ttys Tyonek Formation, Sandstone member (TL002) [Overprint pattern 15] 85 15 600 Tty? Tyonek Formation (unit Tkt?, TY005) [Overprint pattern 15] 85 238610 Tu Unga Formation (Conglomerate) (Tu, CB003; PM002; Tc, Chirikof Fm., AT002) 35 611 Tbe Belkofski Formation (Tbe, CB003; PM002) 85 15 630 Ttyh Tyonek Formation and Hemlock Conglomerate, undivided (Tkth, KN002) [Overprint pattern 15] 33 640 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) 35 13 650 Th Hemlock Conglomerate and Nevidiskov Fm. (Th, MK002; UG004; Tn, AT002) [Overprint symbol 13] 35 660 Tsk Sitkinak Formation, (To, KD002; KG002; TI002; Tsk, KD003; KG003; TI003; __, TI004) 35 670 Tts Tsadaka Formation (Tt, AN002) 37 16 740 Tsi Sitkalidak Formation, (Teo, KD002; KG002; TI002; Tsi, KD003; KG003; TI003; __, TI004; KG004; Ts; Tsl; TSm, KD006) [Overprint pattern 16] 37 790 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) 37 13 795 Tvs Volcanic and sedimentary rocks, undivided, Oligocene and Eocene (Tvs, LG002) [Overprint pattern 13] 139 800 Tst Stepovak and Andrew Lake Formations (Ts, CB003; PM002; Tal, AD011) 139 850 Tcl Copper Lake Formation; (Tc, MK002; Tclu, Tcls, Tcll, IL002) 35 14 855 Twf West Foreland Formation (KN002; SV002; TY002; TY005) [Overprint pattern 14] 85 16 860 Tt Tolstoi Formation, Kulthieth Formation (Tt, CG002; CG004; PM002; UG002; UG004; Tk, BG002; CV002; CV003; MS002) [Overprint symbol 16] 35 15 870 Tw Wishbone Formation (AN002) [Overprint pattern 15] 85 16 880 Tfv early Eocene fluviatile and subordinate volcanic rocks (Tfv, HE002; Tvs, MG002; UK002) [Overprint pattern 16] 91 13 890 Tar Arkose Ridge Formation (Tar, AN002; Kar, TK002) [Overprint symbol 13] 91 900 Tch Chickaloon Formation (Tc, AN002; TK002) 33 13 910 Tjc Sedimentary rocks of Jarvis Creek coal field, undivided (unit Tsj, MH002) 33 13 910 Tjcu Sedimentary rocks of Jarvis Creek coal field, upper member (unit Tsju, MH002) 33 13 910 Tjcm Sedimentary rocks of Jarvis Creek coal field, middle member (unit Tsjm, MH002) 33 13 910 Tjcl Sedimentary rocks of Jarvis Creek coal field, lower member (unit Tsjl, MH002) 40 950 Tos Sedimentary rocks of the Orca Group, undivided (AN002; BG002; BS004; CV002; CV003; SR004; VA002) 40 951 Tovs Sedimentary and volcanic rocks of the Orca Group, undivided (Tovs, AN002; BG002; CV003; Tosv, Tots, CV002) 40 952 Toc Conglomerate of the Orca Group (AN002; CV002; CV003; VA002) 365 1000 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) 365 14 1001 Trs Rhyolitic volcanic and sedimentary rocks (Tw, EA002; Tvs, TN002; Tv, LC002; TN003; Tr, RM002; TKv [part], MZ002; Trp, CG002) [Overprint pattern 14] 365 15 1002 Tda Dacite (Tr, NL003; Kv, BT002; MZ004 (part); Td, Thr, UL002; Tda, CG002) [Overprint symbol 15] 365 14 1003 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] 365 13 1004 Tb Basalt (Tb, CG002; EA002; FB002; LG002; LH004; SM002; Tm, TC002; Tv, BH004; Tgs, AD004; Tkb, Tb, AD005; QTb, BT002) [Overprint pattern 13] 237 13 1010 Thf Hypabyssal intrusive rocks of uncertain age (Mt. Katmai, Riehle and others, 1987; Tid, Tids, MG002) [Overprint pattern 13] 237 13 1011 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 345 1012 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) 76 1022 Thd Hornblende dacite of Jumbo dome and Dacite of Cape Saint Elias (HE002) 76 1025 Tib Intricate Basalt (Tib, IL002; Tvb, RM004; Ta, Tbn1, Tb, NI003; Tw, TA002; QTb, TA003; v, TA012) 76 13 1030 Tpgu Gibraltar Lake Tuff, Upper member (Tglu, IL002) [Overprint 13] 76 14 1031 Tpgl Gibraltar Lake Tuff, Lower member (Tgll, IL002) [Overprint 14] 420 1050 Tv Miocene volcanic rocks (Tv, CB003; Tmv, PM002; QTc, RI005; includes unit Tva, Miocene volcanic rocks on Mt. Katmai map, Riehle and others, 1987) 420 1051 Tab Miocene and Pliocene andesite and basalt (Ta, AD002; Tad, MK004; Tab, UG002; Tau, UG004; Tg, CG002) 420 1052 Tba Miocene basaltic andesite (Tb, ID002) 237 15 1053 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 413 1070 Tvr Crystal and crystal-lithic ash-flow tuff (units Tv1, Tv2, Tv3, Tv4, Tv5, LH002; Tvt, IL002; DI005; Tr, SL002) 413 1080 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) 413 1081 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 413 1082 Tvb Basaltic lavas of the Meshik volcanic arc (MK004; QTb, PE002; PE003) 413 1083 Tvm Andesitic and dacitic rocks of the Meshik volcanic arc (MK004; Tau, UG004; QTa, PE002; PE003) 365 1084 Tap Andesite plug dome (Tap, CG002) 365 1085 Tp Popof volcanic rocks, only in Shumagin Islands = Meshik (Tp, PM002) 413 1103 Tvab Andesite and basalt flows (Ta, NL003; NR002; UL002; Tm, HC002; Roundabout Mtn. volcanic field, KT002; KT003; part TKv, MZ002; MZ004; Khf, SM006) 413 13 1110 Tver Moderately altered rhyolite flows, Nukluk Volcanic Field (Tnr, BH002) 413 1111 Tvnb Massive basalt and andesite, Nukluk Volcanic Field (Tnba, BH002) 413 16 1120 Tvep Tuff and breccia, Eocene or Paleocene (unit Tt, UL002; Tv, Tn, GO002; Tr, ST002; Tfu, HC002; Tv, HG002; NG002; TA003) 413 15 1121 Tvei Felsic hypabyssal intrusions [within unit Tfu of HC002] (Tfi, HC002) [Overprint symbol 13] 416 1135 Tov Orca Group, volcanic rocks, undivided, Paleocene and Eocene? (BG002; CV002; CV003; VA002; Tog BS004; Tog, Tod, SR004) 416 1140 Tcv Cantwell Formation, volcanic rocks subunit (Tcv, HE002; Tv, MH002) 416 13 1145 Tsr Soda rhyolite and basalt (Tsr, SL002) [Overprint symbol 13] 279 1200 Tiu Tertiary intrusive rocks, undivided (Tiu, CB003; CG004; PM002; UG004; Ti, CG002; MK002; UG002; Thi, MK004; Ti, Tg, RM002; Tp, TC002; Ti, KN002; TA015) 174 1203 Tagr Albite granite (Tgr, AT002; Ti13, LC002) 174 1205 Tgd Granodiorite, undivided (on Mt. Katmai map, Riehle and others, 1987; Ti, IL002) 279 13 1206 Tqd Quartz diorite, undivided (on Mt. Katmai map, Riehle and others, 1987; Ti15, Ti14 (altered), LC002; Ti, PE002) 423 1207 Tgb Gabbro and diorite, undivided (Td, AT002; AT004; Tg, KK002; Tgb, MS002; Tm, RM002; Tgb, TC002; Tgd, Togb, SR002; Tgb, Togb, SR004; PPag, AD002) 279 1208 Tsy Syenite of Mount Fairplay (unit Ts, TC002) 279 1210 Tiv Granitic and volcanic rocks, undivided. Age range Oligocene to Paleocene (unit Tgrv, HE002) 94 1250 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) 273 1253 Td Diorite, (Tgd, UN002; Tdqd, Tdd, MC003; Tmdk, Tqdz, Tmqe, PE002; Tmdk, PE003) 315 1254 Tgg Gabbro, (Tgg, UN002; Tgb, BC003; KC002; Tgbk, PE002; Tmgb, PE003; Tlgb, CR010) 273 1270 Togr Granitic rocks (Tmg, AN002; Twf, TKqc, Tnep, LH002; Tnep, LH004; Tsxr, TY003; TY005; Twg, MG002; Ti19; Ti18, Ti3, LC002) 273 13 1275 Toqd Quartz diorite and diorite (Tqd, IL002; MK002, MK005) [Overprint pattern 13] 273 14 1285 Top Oligocene basalt plug (Tbp, CG002) [Overprint symbol 14] 180 1290 Toegr Granitic rocks (Tmpb, Ttg, Tsf, Tsc, Tgd, Tus, Tcpi, LH002; grsg, MH002) 423 1292 Toem Granodiorite to tonalite (Tmpg, Ttg, Tjc, Tsr, Tt, Tmr, LH002; Ti16, Ti6, LC002; Tf, TL002; part Tgr, McGonagall, Eielson, and Wyoming Hills plutons, MM002; part gd, AD003; Ti, GI004) 177 1300 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, Ti11, Ti4, LC002; Tiu, LH002; Tgg, CV002; Tgq, KC002; TKi, TY00 177 1301 Tfd Felsic intrusions, leucocratic dikes, sills and small stocks, south of Border Ranges fault (AN002) 177 1307 Tgmp Quartz monzonite, monzonite breccia, and quartz porphyry (unit Tqm, LH004; MG002; MG003) 177 1310 Tet Tonalite (Tt, VA002; Tt, MF002) 237 1320 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 273 2381350 Thgd 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 372 1370 Tim Dark-colored dikes and sills consisting of diabase, basalt, dioritic and gabbroic mafic intrusive rocks (Tim, GO002; HG002) 372 1380 Tgl Hornblende and pyroxene-hornblende gabbro (Tmu, CV003; Tgl, LH002; Tgb, MG002; Ti5, LC002) 634 1410 Tgma Cottonwood Creek Complex, gniess and amphibolite (unit Tc, NB002) 749 1510 TKcg Conglomerate, sandstone, and lignite (TKd, EA002; TKs, UL002; CY002; Kr, TC002) 749 1520 TKcs Conglomerate and sandstone (TKs, TKc, BN002; SO002) 749 1530 Tk Krugoli Formation, undifferentiated (TMzk, AT004) 749 13 1540 Tkc Basement rocks - coarse-grained and conglomeratic sedimentary rocks (TMzkc, AT004) [Overprint symbol 13] 126 1600 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) 126 15 1601 TKd Dikes and subvolcanic rocks (TKd, OP002; SM002; TKd, TKa, TE002; d, NB002; TKi, TL002) [Overprint symbol 15] 126 16 1602 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] 126 13 1603 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] 126 13 1604 TKvd Volcanic rocks, dacite (TKv, TN002; TN003; TKvd, MG002; TKtd, BH002; TKvi, RM004) [Overprint symbol 13] 126 14 1605 TKvi Younger phase of Iditarod Volcanics and similar units (TKy, TKil, ID002; TKa, KH002; RB009; UL002; TKvm, MG002; TKea, TKsa, BH002; TKn, MD002; TKv, RB004) [Overprint symbol 14] 126 1615 TKv Felsic tuff (TY004; TY005) 126 15 1620 TKd Rhyolite-andesite plugs and domes (TKp, ID002; TKv, Kh, MZ002) [Overprint symbol 15] 126 13 1625 TKvr Felsic volcanic rocks (TKvf, SM002; Tf, BH003; TKv, BN002) [Overprint symbol 13] 129 1630 TKiv Mafic to intermediate volcano-plutonic complexes (TKc, OP002; MD002; TKv, SM002) 129 1635 TKmv Flat-lying to gently dipping mafic flows of andesite and basalt, and volcaniclastic deposits of andesitic and basaltic tuff and conglomerate (TKm, ST002) 372 1640 TKum Mafic and ultramafic intrusive rocks including pluglike body of augite andesite porphyry and a small dikelike body of augite peridotite (TKi, HU002) 187 14 1650 TKi Intrusive rocks (TKi, NR002; RB002; TL002; TY003; TY005; TKg, SM002; TKiu, Tgdn, LH002; gr, MM002; TKcm, MD002) [Overprint symbol 14] 244 1655 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, 205 1660 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 244 14 1665 TKqd Granitic unit 3, quartz diorite and diorite dikes, stocks, and small plutons (TKip, BH002; TMzd, EA002; grn3, MH002; TKi6, TKi3, TKi1, LC002; TKqd, TKqd1, TKqd2, TY005; TKip, RM003) [Overprint pattern 14] 667 1670 TKgb Gabbro (TKmg, TKtp, TKm, TKpg, LH002; TKlg, TK002; TKm, TY005; TKg, ST002; TKie, TKig, BH002; Tm, BH003) 667 1680 TDg Gabbro, undifferentiated, Tertiary to Devonian age (TDg, MD002; RB009; TMg, OP002) 644 1690 TKl Lamprophyre, alkali gabbro, and alkali diorite (la, MH002) 187 15 1710 TKc Cataclastite (AN002) [Overprint symbol 15] 187 13 1720 TKgg Gneissose granitic rocks (unit gg, MH002; TKgs, LH002; Tsmg, TK002) [Overprint symbol 13] 416 16 1780 Tgh Ghost Rocks (Tpe, KD002; Tgh, KD003; Tgm, KD006) [Overprint pattern 16] 416 15 1790 TKmx Orca Group melange (TKm, VA002) [Overprint symbol 16] 745 1800 Ksu Cretaceous sedimentary rocks, undivided () [Reassigned to other units] 797 1805 Knb Undivided marine and non-marine shale and siltstone 745 1810 Kca Chert and argillite (unit Kc, RB002) [Not used, see 6080, 3850] 800 1815 Kcc Limestone conglomerate (unit Klc, CA002; Kcc, NR002) 800 2381816 Kccc 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] 968 1820 Kcvg Calcareous graywacke and mudstone, volcanic graywacke, and volcanic conglomerate (Kcc, Kcv, CA002; Kcvg, NR002; Kg, UL002; Kv [part], SH003, SE004) [Overprint pattern 13] 797 7081821 Kcg Calcareous graywacke and micaceous, calcareous mudstone turbidite deposits (Kcg, CA002; Kct, NR002) [Overprint pattern 708] 800 15 1822 Kcc Nonmarine and marine carbonate-rich conglomerate and sandstone deltaic deposits (Kcv, CA002; Kcc, NR002; Kv [part], SE004) [Overprint pattern 15] 797 2381823 Kcgc Conglomeritic facies of carbonate-rich sandstone, siltstone, and shale turbidite deposits. (on Kct, NR002) [Overprint pattern 238] 851 13 1905 Ksh Shale and siltstone (OP002) [Overprint symbol 13] 851 14 1906 Ksa Sandstone, Late Cretaceous (OP002) [Overprint symbol 14] 851 15 1907 Kvss Volcaniclastic sandstone (OP002) [Overprint symbol 15] 749 1912 Kshf Shumagin Formation (Ks, CB003; PM002) 745 14 1913 Kh Hoodoo Formation (Kh, CG002; CG004; PM002) 749 14 1916 Ksmd Shumagin Formation, mudstone member (PM002) 749 1917 Kkd Kodiak Formation (Kkd, KD002; Kk, KD003; KD004; KD006) 800 13 1920 Kcs Cantwell Formation, sedimentary rocks subunit (Tcs, HE002; MM002; Ts, TL002) [Overprint symbol 13] 851 1940 Kk Late Cretaceous undifferentiated clastic rocks (Ku, MC002; Kss, MD002) 848 16 1941 Kss Non-marine sandstone, quartz conglomerate, shale, and siltstone (Ks, MZ002; NB002; RB004; RB009; TKs, MC003) [Overprint symbol 16] 851 1942 Kk Limy volcaniclastic sandstone (Kls, OP002) 797 16 1943 Kshn Non-marine shale, siltstone, and sandstone (Ks, KW002; HP002; SC002; HC002) [Overprint symbol 16] 745 15 1955 Kkg Kaguyak Formation (Kk, MK002; IL002) [Overprint symbol 15] 754 13 1960 Kc Chignik Formation (Kc, CG002; CG004; PM002; UG002; UG004; Ks, GO002; HG002; NG002) 754 15 1961 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) 851 1970 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 754 16 1980 Kms Minto unit, siltstone, mudstone, graywacke, quartzose sandstone, plant fragments, Late Cretaceous(?) (Km, LG002) 851 16 1985 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] 848 14 1990 Kqc Quartz-pebble conglomerate, early Late Cretaceous (MZ002; BT002; HU002; Knc, SE002; Kq, SH002; SP002; Kb, CH002) [Overprint symbol 14] 800 2010 Km Matanuska Formation, fossiliferous marine shale, late Early Cretaceous to Late Cretaceous (Km, AN002; TK002; GU002; Kmu, Kml, VA002; Ks, GU101) 848 2020 Kme Melozitna group, informal name; Shaktolik (sp) Group (abandoned name), graywacke, shale, grit, and conglomerate (Ks, ID002; MA002; OP002; RM002; Ksu?, NL002) 848 2021 Kme Sandstone, shale, and conglomerate deltaic deposits (Ksu, NL003; Ks, BI002; NI002, NI003; NR002; UL002; Kn, Knm, KT002 [see also 2180]) 800 3482023 Ksi 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] 848 2382024 Kccf Undifferentiated sedimentary rocks -- conglomerate facies (NL004) [Overprint symbol 238] 848 15 2030 Kcg Igneous pebble-cobble conglomerate (Albian and Late Cretaceous?, unit Kc, MZ002; HU002; RB004; SE002; SH002; SP002; Kic, BT002; Kmc, RB009) [Overprint symbol 15] 745 7082100 Knl Early Cretaceous Nelchina Limestone (Ksu, TK00) [Overprint symbol 708] 803 2101 Ksse Marine sandstone and siltstone, Early Cretaceous (Ksm, NR002; Km, KT002; Kg, Km, NL003) 983 2105 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) 63 2382106 Kvcc Conglomeratic facies, Volcanic conglomerate and breccia (Kvg, CA002; Kcv, CA003; Kvc, NR002)[Overprint symbol 238] 745 2110 Kbc Berg Creek Formation (Kb, Js, VA002; Ks, VA007; Kl, BG002; MC002; Kbc, MC100) 793 2382115 Kwcf Early Cretaceous flysch, Wilber Creek unit (Kts, BH002; KJqa, Kwcf, CI002; Kka, CY002; Kwcc, Kwcs, LG002; Kwc, Kwcq, TN003; KJgs, KH002; KJcs, KH003) 745 16 2120 Kp Pedmar Formation, Albian (Kp, MK002) 745 13 2125 Ksm Quartz-carbonate sandstone and pebbly mudstone, Early Cretaceous, Valanginian-Aptian (Kqc, MD002; Kb, GO002) [Overprint symbol 13] 803 15 2126 Kba Biederman Argillite, Kandik Group, Valanginian (Kb, CY002) [Overprint pattern 13] 793 2130 Kcct Cape Current terrane (Kc, KD004) 909 15 2135 Kkq Keenan Quartzite, Kandik Group, Valanginian (unit Kk, CY002; Kq, BR002; Kke, ML002) [Overprint pattern 15] 803 16 2140 Karg Argillite, Early Cretaceous(?) (Ka, CY002) [Overprint pattern 14] 848 7082150 Khe Herendeen Formation or Limestone on some maps; (Khe, CG002; CG004; PM002; MK005; Klg, GO002) 848 7082151 Kli Limestone, Early Cretaceous(?), primarily Inoceramus prisms (Kl, CY002) 803 2152 Km Marine mudstone and sandstone (Kgm, KT002 [201]; Kcs, KW002; MA002; NL003 [303]; SC002) 909 2170 Kuc Ungalik Conglomerate (unit Ku, RB002; NL002) [Not used] 909 2175 Kst Staniukovich Formation (Ks, PM002; UG004; Kst, CG004; MK005; KJs, CG002; Js UG002) 983 2180 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 983 2181 Kvm Earliest Cretaceous volcanic conglomerate (KT002, shown as part of unit Kgs - 2180; KT002; Kcvs/Kcs, MD003; OP003) 602 2190 Kmk McHugh Complex, Uyak Complex, melange (Mzm, AN002; BG002; Ku, KD004; Kbc, KJm, VA002; KJm, KN003; KPm, KPms, KPmc, SV002) 602 2192 Kmar Melange south of McKinley Fault (Kms, HE002; DSga, TK002) 602 7082193 TrSl Melange south of McKinley Fault, limestone blocks ( (msl)Kms, HE002) 602 2195 Kmar Melange north of McKinley Fault (Kmn, HE002; wm, MH002 [same as Kmy and Kmz in Healy quad?, subdivided also on map]) 602 7082196 TrSl Melange north of McKinley Fault, limestone blocks ( (mnl)Kmn, HE002) 423 13 2197 Kmu Melange north of McKinley Fault, ultramafic rocks ( (mno)Kmn, HE002; Kuu, KD004) [Overprint symbol 13] 124 3482210 Kve Hypabyssal rocks, dacite and rhyolite porphyry (Ktr, BH002; Ki, HC002; KW002; MA002; Khe, SE002; Kfv, SH002) [Overprint symbol 348] 172 2230 Kve Cretaceous basalt, local pillow flows, probably early Cretaceous (Kb, TY004; TY005) 124 2255 Kvl Andesitic subvolcanic rocks (Kva, HE002) 124 2256 Kvl Basaltic subvolcanic rocks (Kvb, HE002) 124 2260 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 124 14 2265 Kvl Volcanic rocks, Kipchuk Volcanic Field (TKdt, TKat, TKgrt, TKft, TKvmi, SM003; Khtb, Khb, SM006; Ki, ST002) [Overprint symbol 14] 124 15 2320 Ktg Tuff, volcanic graywacke, and mudstone (Ktg, HU002; MZ002; Kv, UL002; Kts, GO002; Kv, HC002; KCgg [part], BH004) [Overprint symbol 15] 124 16 2330 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] 172 2335 Kbd Spilitic pillow basalt and diabase (SH002; KT004, see also2230) 124 13 2340 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) [ 251 2400 Kdg Dikes, granite to diorite (LG002) 251 2401 Kd Basaltic andesite dikes (Kd, SV002) 251 3482405 Kpg Pegmatite (Kpg, BN002) [Overprint symbol 348] 251 2410 Kgu Granitic Rocks (Kg, BV002; CA002; KH003; KT002; MA002; TN003; Kgr, HE002; NL003; Kag, HU002; Ki15, LC002; PzpCg, EA002; part Mzg, TC002; Ku, KN009; Kcb, Knh, BN002; Kgu, BN002; SO002) [All ages] 251 2411 Kgt Tourmaline bearing granite (HE002) 251 2415 Kgc Contaminated granitic rocks; Dark, fine- to coarse-grained contaminated granitic rocks with abundant mafic schlieren (Kgc, BV002) 251 2420 Kgd Granodiorite (Kg, MZ002; Kgq, HU002; Ki14, Ki13, Ki11, Ki10, Ki7, Ki3, Ki2, Ki1, LC002; Kg3, SH002; part Mzg, TC002; Kkg, SO002) 672 2430 Kqd Quartz diorite (Ki12, Ki6, Ki4, LC002; part Mzg, TC002; Kkd, SO002) 672 2440 Kmum Gabbro of Mount Moffit (gbm, MH002; Kd, BD002; Km?, TN002; Km, KH003; Kgab, TK003) 672 2445 Kmum Serpentinite, diabase, gabbro, and mafic volcaniclastic rocks (Ksp, KH003) 251 13 2450 Kga Alaskite (Ka, LG002; Kp, BD002, Ka3, SH002) [Overprint symbol 13] [< 85 Ma] 251 13 2460 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] 251 13 2465 Kgs Syenite (LG002; Kae, BN002) [Overprint symbol 13] [< 85 Ma] 251 13 2470 Kgk Quartz monzonite, monzonite, and syenite (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] 251 2475 Kgm Granite (Pedro Dome, LG002; grgm, grma, grrc, MH002; Kgq, Kcg, Ktq, Ktg, Kmg, NB002; Kqd, Kq, Kg, Kgq, Klg, Kpg, KC002) 251 2480 Klgd Granodiorite (unit Kgr [part], HE002; Kg, BD002; HP002; grmr, MH002; Kgd, LG002) 672 2510 Kmum Serpentinized ultramafic rocks (Kum, AN002; NB002; Ksp, TN002; BH002; Kvu, CV002; s, BH003) 251 14 2515 eKg Granite (lKgg, RB009; Kis, RM003) [Overprint symbol 14] 251 14 2520 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 251 14 2525 eKg Quartz-feldspar porphyry (Knp, NB002) [Overprint 14] [>110 Ma] 251 14 2530 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] 251 3482535 eKns Nephelene syenite (Kns, SE002; Kn2, SH002; Kn, SL002; Kg (part), CA003; CA004; Kdc, SO002) [Overprint symbol 348] 251 14 2540 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] 251 14 2545 eKsy Syenite (Kgi, SE002; Ks2, SH002; Kg (part), CA002; Ko, SL002; Kkms, SO002) [Overprint symbol 14] 251 14 2570 eKtt Leucotonalite and trondjemite (Kt, AN002; Knt, NB002; Kg (part), CA003; CA004) [Overprint 14] 580 2590 eKgdc Foliated (or cataclastic/mylonitic) quartz diorite (Ki9, Ki5, LC002) 580 2600 eKmi Metamorphosed granitic rocks, wide range of compositions from quartz monzonite to diorite (ag, MH002; Kgr, AR002; Kkgm, SO002; Kfg, BN002; mgg, MF003) 963 14 2630 Mzsa Migmatite and migmatitic schist (mig, mgsh, MH002) [Overprint symbol 14] 44 2640 Khg Hornfels and gniess (Kh, KH003; Pzh, EA002) [Also gneissose areas within hornfels, largely on the Tanana geologic map (TN002)] 672 2670 Kmum Metagabbro, metadiabase, and minor amphibolite (mgb, MH002) 749 2700 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) 516 2705 Kvv Valdez Group, metavolcanic rocks, undivided (Kvv, CV003; VA002; Kvt, AN002; BS004; SR004; Kvgr, CV002) 909 14 2810 KJs Argillite, chert, sandstone, and limestone (KJc, BH002; Mza, TC002) [Overprint symbol 14] 909 13 2812 KJwc Wilber Creek and Wolverine quartzite units, undivided (TN003 modified, shown as southern TrPs) [Overprint symbol 13] 909 2815 KJw Wolverine unit, quartzite and interbedded shale and siltstone, Late Jurassic or Early Cretaceous (KJw, LG002; TN003; KJqa, CI002) 909 15 2816 KJw Quartzite of the Wolverine quartzite unit (KJwq, TN003) [Overprint pattern 15] 909 2817 KJw Sandstone and shale of the Wolverine quartzite unit (KJwa, TN003) 793 14 2820 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] 793 15 2821 KJcg Conglomerate, sandstone, siltstone, shale, and volcanic rocks, westernmost outcrops of the Gravina-Nuzotin belt (HE002) [Overprint symbol 15] 793 2825 KJfm Metasedimentary rocks (JKw, LH003) 793 2850 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 793 13 2851 KJfk Flysch sequence (Early Cretaceous and Late Jurassic, unit KJfk, HE002) [Overprint symbol 13] 793 14 2852 KJfn Flysch sequence, Late Cretaceous to Late Jurassic (unit KJfl, HE002; KJm, MG002; KJs, TL002) [Overprint symbol 14] 909 16 2860 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] 909 16 2861 KJgu Glenn Shale, upper unit, Early Cretaceous to Middle Jurassic (KJgu, CY002; KJs, BR002) [Overprint pattern 16] 978 2870 KJv Basalt and andesite flows, Whitefish Lake volcanic field, Nyac terrane (TJwl, RM003; KJba, BH002; RM003; KJv, SC002; KJvs, GO002; KJv, DI005) 978 2875 KJvt Tuffaceous subunit of unit MzPzat (Vrain, CI002) 978 2880 KJcv Chert and volcanic sequence (Late Cretaceous and(?) Jurassic, KJcv, FP002) 978 2885 KJrd Highly altered hypabyssal rhyolite and dacite (TJih, BH002; RM003) 470 13 2890 JTrtv Pillow basalt (KJb, TL002; BH002) [see 5450, 4215, all thought to be same unit] [Overprint symbol 13] 248 2900 KJg Granitic rocks and minor monzonite (grs1, grs2, grs3, grcl, MH002; Kgd, hbqd, hbqm, hbgd, GU002; TJis, BH002; KJi, LC002; MzPzp, CH002) 633 2920 KJgg Gabbro and diorite (KJg, MG002) 633 2945 KJmu Ultramafic rocks (Early Cretaceous or Jurassic, HE002) [Compare to Kum (AN002)] 793 15 2970 KJfm Marine metasedimentary rocks, flysch, Early Cretaceous and Late Jurassic, part of the Gravina-Nuzotin belt (KJs, MH002) [Overprint pattern 15] 844 14 3000 Jsu Jurassic sedimentary rocks, marine, undivided (Js, MC002) 844 3010 Jn Naknek Formation (B-1969A; AN002; CB003; CG002; CG004; KN002; MK005; PM002; IL002; SV002; TY002; UG004) 844 13 3011 Jn? Naknek Formation? Use with overprint pattern 13] 844 3012 Jnn Naknek Formation -- Northeast Creek Sandstone Member (Jnn, CG004; PM002; MK002; MK005; UG004; Jns, UG002) 844 3013 Jns Naknek Formation -- Snug Harbor Siltstone Member (Jns, CG004; PM002; MK002; MK005; UG004; Jnst, UG002) 844 3014 Jni Naknek Formation -- Indecision Creek Sandstone Member (Jni, CG004; PM002; MK002; MK005; UG004) 844 3015 Jnk Naknek Formation -- Katolinat Conglomerate Member (Jnk, MK002; MK005; UG004) 844 3016 Jnc Naknek Formation -- Chisik Conglomerate Member (Jnc, CG004; MK002; MK005; UG002; UG004) 844 3017 Jnnc Naknek Formation -- undivided Northeast Creek Sandstone Member and Chisik Conglomerate Member (CG004; UG004) 844 3018 Jnis Naknek Formation -- undivided Indecision Creek Sandstone Member and Snug Harbor Siltstone Member (CG004; UG004) 971 3020 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)] 971 3030 Jc Chinitna Formation (AN002; KN002; IL002; SV002) 971 15 3110 Jkt Kotsina Conglomerate, Middle and/or Late Jurassic? (Jk, VA002; MC002) 844 14 3120 Juc Unnamed marine sedimentary rocks, sandstone, siltstone, mudstone (Jvc, Jvs, BH002; Jvc, RM003) 844 15 3130 Jc Marine arkosic sandstone and argillite, Togiak terrane (Ja, BH002) [Overprint symbol 15] 971 14 3140 Jtxc Chinitna Formation and Tuxedni Group, undivided (Jct, TK002; part of KJs, TL002; Jk, GO002) 971 3180 Jtx Tuxedni Group (Jt, AN002; KN002; IL002; Jtu, SV002) 971 3190 Jk Kialagvik Formation (Jk, UG002; UG004) [Kialagvik Fm. is similar to the lower upper part of the Tuxedni Group] 971 13 3210 JTrtv Tatina River volcanics, Upper member, phosphatic shale and volcaniclastic sandstone (unit lJs, MG002; part of KJs, TL002) [Overprint symbol 13] 772 3250 JTrtk 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 772 3260 JTrp Phyllite and chert, possible Talkeetna stratigraphic equivalent (BH002) 633 3340 Jmu Ultramafic rocks including layered quartz gabbro (Jum, Jlg, Ju, VA002) Lumped units 3345, 3405, 3490, 3491, 3495, 3540, 3545 325 13 3380 Jtr Trondhjemite (AN002; TK002; IL002; Jt, UL002; GO002; HG002; Jgr, HC002; Ji2, LC002) [Overprint pattern 13] 633 3390 Jmu Alkalic gabbro (Jgb, HE002) 325 3400 Ji Alaska-Aleutian Range batholith, undifferentiated (Jg, IL008; LC010: KN011; p, IL007; Ji7, MU002) 325 3401 Jgr Granite of Alaska-Aleutian Range batholith (Jg, VA002; J(?)f, SV002; Jgr, MK002; MK005) 325 14 3402 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) 325 15 3403 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 325 16 3404 Jqt Quartz diorite and tonalite (AN002; Jd, Jto, SV002; JU, KN009) [Overprint symbol 16] 633 3405 Jmu Mafic and intermediate plutonic rocks, Middle to Early Jurassic, also Diorite and Gabbro of Alaska-Aleutian Range batholith (TJik, BH002; TJim, RM003; Jd, IL002; Jmip, AN002; Jmp, VA002; Jgb, MK002; MK005; Jg7, Jfg7, MU002; Jg7, DL002; DL004; KJd, MF002) 772 13 3450 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] 362 3480 Jan Anorthosite () 633 3490 Jmu Gabbronorite, Middle and Early Jurassic (Jg, Jgs, AN002) 633 3495 Jmu Ultramafic and mafic rocks, Middle to Early Jurassic (Jum, AN002; Jm, IL002; Jg, Jum, GO002; HG002; Ju7, MU002; DL002; DL004) 468 3496 Jtu Cumulate ultramafic rocks (unit Jcu, NL003; pc, OP002) 468 3497 Jtu Harzburgite tectonite (unit Jht, NL003; ph, OP002) 468 3498 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) 633 3540 Jmu Hornblende gabbro and leucogabbro (layered) (Jgl [now Jtg), VA002; shgb, GU002) 633 3545 Jmu Ultramafic rocks, Early Jurassic or older (shgb, GU002) 325 15 3550 JTrg Granodiorite of Taylor Mountain batholith and related(?) rocks (JTrg, TC002; JTrg, Mzh, EA002) 325 15 3555 Jsy Hornblende syenite porphyry (MZs, TC002; Js, EA002) 506 3600 PPast Metamorphic and plutonic rocks, undifferentiated, Jurassic, (Jpmu, TK002) 963 3610 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) 506 3621 PPast Migmatite border zone of granodiorite (Jgdm, TK002; Jmg, IL002) 915 3700 Jps Pelitic schist, Jurassic (Jps, AN002) 912 3820 JTrmc McCarthy Formation, argillite and impure limestone (Early Jurassic-Late Triassic) (JTrm, BG002; MH002; MC002; VA002) 912 3821 JTrmc Limestone, shale, and chert (Early Jurassic(?)-Late Triassic (Norian)); newly recognized unit in Taylor Mtns. (eJTrl, TA008) 912 13 3830 JTrsu Red and brown sedimentary rocks and basalt (Early Jurassic-Late Triassic) (JTrrs, HE002) 905 3850 JTrct Crystal tuff, argillite, chert, graywacke, and limestone, deep marine, Late Jurassic to Late Triassic(?) (Jta, TK002; JTrta, HE002; JTrsv, TL002) 464 3851 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) 912 16 4020 Trk Kamishak Formation [includes some volcanic rocks] (Trls, UG002; Trk, KN002; MK002; MK005; UG004; Trku, Trkm, Trkb, IL002; KCg2, DI002; TA002) [Overprint symbol 16] 905 15 4021 Trlb Limestone and basalt sequence, Late Triassic, Norian (Trlb, HE002; MM002; TL002) [Overprint 15] 912 7084030 JTrlm Chitistone and Nizina Limestone units, undivided (Trl, AN002; Trn, BG002; unit HE002; Trcn, Trm, MC002 [+ 20,000 hfls]; Trl, MH002; VA002; Trl, Tsk, TK003) 912 7084031 JTrlm Limestone and marble (Jls, TK002) 912 15 4032 Trsl Spiculite and sandy limestone, Late Triassic, Norian (Trs, MD002) [Overprint symbol 708] 937 4033 Trcs Calcareous sedimentary rocks, Late Triassic, middle(?) Norian and Late Karnian (Trcs, HE002: MM002; Pzsl, TL002; Trls, MG002) 937 4034 Trgl Glenn Shale, lower unit, Late and Middle Triassic (CY002; Trs, Trks, DP004; ML002) 464 4035 Trcg Chert and some greenstone (Trvs, GO002; DI003) 937 13 4050 Trcg Conglomerate and volcanic sandstone, Late Triassic, Norian (HE002; Trvs, LH004; Trs, MG002) [Overprint pattern 13] 912 13 4060 Trr Red beds, Late Triassic (Trr, HE002; JTrrs, MM002) 937 4080 Trgl Calcareous phosphatic shale and limestone [probably correlative with lower part of Glenn Shale] (Trs, LG002) 937 4110 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) 940 4150 Trss Shuyak Formation, sedimentary member (Trss, KD004; Trvm, KD002) 0 4205 Trvs Rhyolitic lava and breccia, tuff, chert, and shale, in Kantishna quadrangle, unit eliminated on newer TN003 compilation (Trvs, KH003) 375 4210 Trn Mafic igneous rocks, Triassic(?) (Trm, LG002; KH002; Unk, RB?) 470 4215 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] 375 4230 Trv Upper Triassic volcanic rocks (Trv, UG002; UG004) 905 4235 JTrct Chulitna Sequence -- volcanic and sedimentary rocks, Late Triassic, Norian (JTrvs, TL002) [Lumped with units 5010 and 3850] 375 4240 Trvm Mafic dikes, sills, and plugs intruding Shuyak Formation (Trm, KD004) 905 4250 Trsv Shuyak Formation, volcanic member (Trsv, KD004) 468 13 4310 Trqd Afognak pluton, U-Pb age indicates is probably Triassic (Ja, KD004) [Overprint symbol 13] 633 4320 Trgb Gabbro, diabase, and metagabbro, Late Triassic(?) (ga, MH002; Trg, Trum, MG002; Trg, Trcg, GU002) 633 4321 Trgb Cumulate mafic and ultramafic rocks, Late Triassic(?) [Nikolai related] (cu, MH002) 999 4340 Trc Carbonatite (Jsc, TN003; TN004) 470 4410 Trnm Schistose metasedimentary and metavolcanic rocks, Late Triassic (csv, MH002; JTrs, NB002) 605 13 4415 Trmg Biotite-hornblende syenite-monzonite gniess (JTrg, NB002) [Overprint symbol 13] 375 4420 Trn Nikolai Greenstone, Late and/or Middle Triassic (Trng, BG002; Trn, GU002; MH002; MC002; MC003; VA002; NB002; Trn, Trbd, HE002; Trmb, Trab, TK003) 375 4421 Trn Nikolai Greenstone - subaerial basalt flows member, Late Triassic (Trnf, MH002) 375 4422 Trn Nikolai Greenstone, Late and/or Middle Triassic, pillow basalt member (Trnp, MH002; Tra, Trap, TK003) 375 4423 Trn? Basalt, diabase, and subordinate sedimentary rocks, Late Triassic, Karnian and Norian (Trbd, MM002) 375 4425 Trc Cottonwood Bay Greenstone (APMAP; MzPzg, LH002; Trc, IL002; MK002; MK005; Sc, LC002; JTrv, LC003; Trv, DI005; JTrca, LC006) 375 4430 Trn Basaltic metavolcanic rocks, Late Triassic, (Trv, TK002) 470 4440 Trnm Metavolcanic, metavolcaniclastic, and subordinate metasedimentary rocks, Late Triassic, late Norian, (Trvs, HE002) 470 4450 Trnm Metabasalt and slate, Late Triassic (Trvs, TK002) 973 4710 MzPzgsGemuk Group, chiefly siltstone and lesser chert and volcanic rocks (KTrg, SM002; KCgu, RM002; MzPzvs, RM004; TrPvs, MA002; KCg1, DI002; TA002; KCg, BH003) 312 4800 Mzi Intrusive rocks, quartz diorite and diorite (TY003) 470 14 4870 Ktrv Gemuk Group of southwestern Alaska and gabbro and basaltic rocks of Kechumstuk Mountain in Interior Alaska, largely altered mafic volcanic rocks (unit KCgg, RM002; Mzgb, TC002) [Overprint symbol 14] 375 4880 Mzm Mafic rocks, diorite and gabbro (Mzm,TY003; Mg, SV002; Mzg, g, BM002; mi, AR002) 674 4890 Mzum Ultramafic and associated rocks (Mzp, EA002; Mu, SV002; um, MH002; GG, VA005 [new unit]) 674 4891 Mzum Ultramafic and mafic igneous rocks along Broxson Gulch thrust (umm, MH002) 944 4905 JPzk Metasedimentary and metavolcanic rocks, (Mzs, TY003; TY005) (Correlated with Kakhonak Complex) 944 4920 JPzk Metavolcanic and metasedimentary rocks, (Mzu, TY003; TY005) (Correlated with Kakhonak Complex) 937 16 5000 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] 944 5004 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 905 16 5005 MzPzvsThick, widespread, marine unit consisting of volcanic and sedimentary rocks ranging in age from Early (?) Ordovician to Early Cretaceous. (MzPz, GO002; HG002) [Overprint symbol 16] 937 14 5012 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) 461 5020 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) 461 5021 TrMis Rampart Group, sedimentary rocks, Triassic to Mississippian (unit TrMs, OP002; TrMv, MD003; OP003; Pg, RB003) 977 16 5026 MzPzc Chert and argillite, Goodnews terrane (BH002) [Overprint pattern 16] 0 5030 TrPzvsVolcanic and sedimentary rocks of Talkeetna superterrane, Triassic and Paleozoic (HE002) [Only in cross-sections] 937 7085035 TrPgt Lower unit Glenn shale and Tahkandit Limestone, undivided (TrPgt, CY002; PCs, BR002) [Overprint pattern 708] 905 16 5040 TrPas Flysch-like sedimentary rocks (TrPas, HE002; Trps, MM002) [Overprint symbol 16 905 16 5045 MzPzvsTurbiditic volcaniclastic sandstone and argillite, Goodnews terrane (MzPzv, BH002) 905 13 5050 MzPzasArkosic sandstone and slate, Goodnews terrane (MzPzs, BH002 905 14 5060 TrDs Marine sandstone, shale, limestone and conglomerate (BH002; KCgl1, DI002) 602 16 5090 MzPzm Melange and argillaceous melange, Tikchik and Goodnews terranes (TrPzm, MzPza, BH002; KCg4, DI002; TA002; MzPz, GO002; DI003, TA003; KCgc, BH003) [Overprint symbol 16] 912 14 5110 TrDv Chulitna Sequence -- volcanic and sedimentary rocks, Early Triassic to late Paleozoic (unit TrDv, HE002) 461 5111 TrMicaChert, volcanic rocks, metasandstone, and limestone (TrMc, ID002) 461 5112 TrMicaChert, argillite, and volcaniclastic rocks (TrPzc [TrMc], OP002; OP003) 468 5113 JPztm Mafic and ultramafic rocks, undivided (Jurassic? and/or Paleozoic?) (Pzmi, RB005) 347 5120 MzPzi Volcanic rocks, unknown age (unit vr, NL002; MzPzb, EA002) 468 16 5130 JTrtmuRampart Group, igneous rocks, Triassic to Mississippian (unit TrMrv, LG002; JMr, TN003; MzPzc, CI002; CY002; Pzv, BR002; TrMb, NL002) [Overprint 16] 461 5131 TrMtsuMafic and sedimentary rocks; pillow basalt, chert, and minor argillite (JMms, TN002; TrMcb, OP005; MD004) 464 5132 JMtru Undivided Tozitna (mafic rocks?) (JMr, TN003 464 5133 JMtu Mafic, ultramafic, and sedimentary rocks of the Tozitna sequence, undivided (Jurassic to Mississippian) (mi, RB002; Pzrgmsv, Pzrgs, RB004; JPv, BT002) 464 5140 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) 468 5150 Jaum Ultramafic rocks, Permian to Jurassic (JPu, TN002; RB004; JMu, TN003; Js, SH002; s, BM002 [in part]; Jumc, CA004; RB009) 347 5160 MzPzi Undivided intrusive rocks, Mesozoic or Paleozoic (MzPzi, TL002; MzPzt, BN002) 347 5170 MzPzg Granodiorite of Rainbow Mountain (grrm, MH002) 347 5175 MzPzi Diorite (MzPzd, CI002) 347 5180 MzPzi Gabbro and quartz diorite, Mesozoic and/or Paleozoic (MzPzg, EA002; TL002; MzPzi, LH003; LH004; MG002; MG003) 640 5190 MzZum Undivided dunite and serpentinite, Mesozoic or Paleozoic (MzPzd, TL002; part of Jsc, TN003; MzPzs, BN002; SO002) 963 5200 MzPzu Metamorphic rocks, undivided (JPzm, AN002; MzPzu, KC002; b, c, cs, m, BM002; PzPs, WI002; MzPzp, PE002; TKp, Mzp, PE003) 937 5201 Trcs Fine- to medium-grained mylonitic metasedimentary rocks, calc-schist, marble, quartz-mica schist (as, MH002) 506 13 5202 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] 506 3485204 PPast Dadina Schist (ds, GU002) [Overprint pattern 348] 963 14 5205 Mzsa Schist and amphibolite, Late Cretaceous or older (sa, MH002) [Overprint pattern 14] 963 15 5206 Mzpca Quartz-mica schist, calc-schist, and amphibolite, Late Jurassic or older (msh, MH002) [Overprint pattern 15] 937 5207 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} 937 15 5208 TPza Raven Creek Hill unit, metasedimentary gneiss, mica schist, phyllite..., Mesozoic or Paleozoic (MzPzr, LG002; Pzsr, TN002; TN003; KH003) [Overprint symbol 15] 963 15 5210 Mzpca Argillite and metagraywacke, Late Jurassic or older (ma, MH002; part Kag, TK002) [Overprint pattern 15] 963 5211 MzPzaqArgillite and quartzite (CI002) Deleted unit in revision. 963 15 5215 Mzpca Phyllite, Late Jurassic or older (mph, MH002) [see Pzp, #5540] [Overprint pattern 15] 909 16 5216 KJvr? Phyllite, amphibolite, greenstone, and diorite, Mesozoic or Paleozoic (MzPzp, LG002) Lumped with Vrain [Overprint pattern 16] 977 5217 MzPzp Chloritic phyllite, Goodnews terrane (BH002) 944 5220 JPzk Kakhonak Complex (Jurassic, Triassic and older?) (JPk, IL002; MK002; MK005; MzPzs, LH002; Mzv, Mzu, LH003; TrPztc, LC003; LC004; as, KN009) 977 13 5225 MzPzmcMetachert and phyllitic quartzite, Goodnews terrane (MzPzm, BH002) 311 5230 JPe Banded dark-green, gray, and red eclogite and banded amphibolite. (JPe, BV002) 375 5240 MzPzb Metabasalt and minor metachert (MzPz, BH002; Pzg, EA002; MzPzm, LC002) 605 14 5245 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] 605 5250 MzPmi Metamorphosed igneous rocks, post-Carboniferous (mi, NL002; MzPzi, BM002; MzPzmi, KC002) 977 15 5260 MzPzq Seward terrane? Quartzite, carbonate rocks, schist, and amphibolite (MzPzq, NR002) [Overprint pattern 15] 464 5280 MzPzo Ophiolitic metamorphosed mafic rocks (MzPzb, UL002; HC002) 605 5285 Pzrmi Metamorphosed mafic igneous rocks (Pzm, TN003) 640 5290 MzZum Serpentinite, Mesozoic and/or Paleozoic (MzPzu, TL002; TC002; Kum, SD002; TR002; TKum, JU002) 838 7085300 Pzds Dolostone, black shale and carbonate rocks (Pzd, Pzbs, BM002) [Overprint symbol 708] 838 7085310 DCd 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) 980 5320 Pzld Massively bedded limestone, dolomite, and schist, Paleozoic, Seward terrane (Pzl, CA002; SE002[SW part]; Pzc, NR002) 980 13 5321 PzZls Undivided limestone and schist, Paleozoic (Pzls, CA002; Pzu, NR002) [Overprint pattern 13] 980 14 5322 Pzls2 Limestone and quartz-mica schist, Paleozoic, Seward terrane (Pzs, CA002; NR002) [Overprint pattern 14] 573 7085330 Pzlc Limestone and chert (Pzl, CI002) [Overprint pattern 708] 836 7085340 Pzrm Carbonates, early Paleozoic (Pzl, TN003; Pzc, BT003; OP002; RB003; RB009; mcl, NL002; PzpCc, NL004; Pzm, BV002; MZ002; BT002; PaMcl, MD002) [Overprint symbol 708] 742 5341 PPl Limestone?, Permian-Pennsylvanian? (unit PPl, LH003) 461 14 5350 Pzqa Quartzite and argillite, Late Paleozoic (Pzqa, CY002) [Overprint pattern 14] 461 15 5355 Pzca Chert and argillite, Late Paleozoic (CY002) [Overprint pattern 15] 458 15 5360 Pzsu Clastic rocks, undivided, Paleozoic(?) (Pzu, CY002) [Overprint pattern 15] 458 3485370 JCmd 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] 458 5375 JDm Mystic stratigraphic sequence, undivided (Triassic to Devonian) (Pzmu, LH004) 470 13 5410 Pzvs Volcanic and sedimentary rocks, middle or late Paleozoic (Pzv, TL002; Pzvs, KH003; JPzu, SH002) 347 5440 MzPzi Diorite (Pzd, BD002; TC002) 470 13 5450 JTrtv Pillow basalt, middle or late Paleozoic (Pzbs, TL002) [see 2890, 4215, all thought to be same unit] 270 2385460 Pagb Gabbro and leucogabbro, Late Paleozoic, Permian to Pennsylvanian (Pzg, VA002; Pgo, MC002) [Overprint pattern 248] 241 5470 Pzug Ultramafic and mafic rocks and greenstone (Pzg, Pzum, NB002; Pu, MC002; Pzmu, CY002) 311 5475 Pze Eclogite see Chatanika unit [5510], which includes eclogite in Livengood quad (Pze, CI002) 311 7085500 Pzkm 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] 311 5510 Pze Chatanika unit, allochthonous garnet-bearing qtz-bio-mus schist and quartzite, Paleozoic (Pzb, EA002; Pzc, LG002; PzpCms, CI002) 980 15 5520 Pzpq Chiefly dark phyllite and fine-grained quartz-mica schist (Pzp, SH002; Pzs, SE002) [Overprint 15] 836 7085525 Dm 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] 836 7085530 Pzcs Schistose calcareous siltstone, limestone, and greenish tuffaceous rocks (GO002) [Overprint pattern 708] 461 16 5542 TrMtqpCalcareous siltstone and sandstone and phyllite (Pzc, KH003; TrMq, NL003; PzpCs, OP002; Pzrp, RB004; MzPzq, NR002, CA003; RB009; PzpCq, MZ002) [Overprint pattern 16] 461 16 5545 PMpc Phyllite, calcareous phyllite, and marble (uPzs, uPzc, MG002) [Overprint pattern 16] 506 3485550 PPast 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] 841 5600 PDms Greenish-gray siliceous slate, quartzite, chert, and greenstone, Perm-Miss. (PMs, LG002) 700 2385605 MDtm Cataclastic rocks, Totatlanika Schist (unit Pzc, BD002; PzpCm, EA002) [Overprint pattern 238] 841 3485615 PDms 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] 506 14 5620 Pat Slana Spur Formation, marine calcareous and noncalcareous volcaniclastic rocks, Early Permian-Middle Penn. (PaPs, MH002) [Overprint pattern 14] 506 14 5621 Pat Slana Spur Formation, calcareous volcaniclastic rocks, Early Permian-Middle Penn. (PaPsu, MH002) [Overprint pattern 14] 506 3485625 PPast Metamorphosed Skolai Group (PPasm, MC002; uPzfv, TK003) [Overprint pattern 348] 506 5630 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.] 209 5635 Pzvc Volcanic rocks, volcanic sandstone, cherty argillite, quartzite, and tuff (NB002) 461 5640 JPzsgsGreenstone (Pzg, CI002) 506 3485641 PPast Greenstone (unit mcb, GU002; Jgs, TK002) [Overprint pattern 348] 699 5660 Pzk Keevy Peak Formation, schist, quartzite, and phyllite, early Paleozoic (Pzk, HE002; MM002; Pzq, BD002; CI002; EA002; Pza, TC002; bc, FB002) 699 5661 Pzk? Keevy Peak Formation, schist, quartzite, and phyllite, early Paleozoic (PzpCg, TC002) 699 16 5662 Pzkcp Calcareous and phyllitic rocks (Pzm, CI002; BD002; bc, FB002) [Overprint pattern 16] 699 13 5666 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] 337 5670 PzZyg Big Delta Gneiss dome (Pzg, BD002) 506 5680 PPast Metamorphic complex of Gulkana River, amphibolite (am, GU002) 640 5690 MzZum Metamorphosed ultramafic rocks (Pzu, BD002; Pzmg, GO002; HG002) 841 13 5710 Psu Sedimentary rocks, undivided, Permian. Sandstone, siltstone, and quartzite (Pu, CY002) [Overprint pattern 13] 742 5730 Pls Unnamed Permian limestone (Pls, UG002; UG004; Pl, GO002; HG002; DI003; KCgl, BH003) 742 13 5735 Ptl Tahkandit Limestone, massive bioclastic limestone (Pt, CY002) [Overprint 13] 841 2385740 Ps Argillite, sandstone, sandy limestone, and minor conglomerate (LG002; KH003; RB009; MD002) [Overprint pattern 238] 461 14 5745 Pig Graywacke, conglomerate, and mudstone, Permian(?) (Kc, RB002; Pg, RB004) [Overprint pattern 14] 506 5750 Ph Hasen Creek Formation (MC002; MC003) 742 5755 Phls Limestone of the Hasen Creek Formation (Pl, MC002; MC003) 374 5810 Pv Permian(?) volcanic rocks (agglomerate) from Hanson (1957) (Pv, KR004; GO002; KCg3, DI002; TA002; KCgv, BH003; Phb, PE003) 461 3485830 JPzsgsGreenstone and chert (Pgc, BD002) [Overprint pattern 348] 270 5860 Pmi Shallow-level stocks, dikes, sills and small plutons, Early Permian? (Pi, MH002) 270 5870 Pmgi Monzonitic-granitic complex (Pm, MC002; Pam, BG002) 270 5880 PPad Diorite complex, diorite, granodiorite, and altered diabase and gabbronorite (JTrd, NB002; PPd, PPa, GU002; Mza, NB002) 506 3485920 PPast 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] 506 16 5940 Pmg Mankomen Group, undivided (Pm, NB002) [equivalent stratigraphically to Skolai Group] 506 13 5950 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] 506 13 5955 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] 461 5960 JPzsgsQuartzite, phyllite, micaceous quartzite, marble, inferred Permian age (Pq, BD002) 468 5980 JPsu Serpentinized ultramafic (Pu, BD002; Pzp, CI002; MzPzs, MzPzp, EA002, Dmu, FB002) 704 7086000 PDl Pennsylvanian, Mississippian, Devonian, light gray limestone PDl, BM002) [Overprint symbol 708] 458 2386010 PDsc 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 704 15 6020 PaDcb Calico Bluff and Ford Creek Formations, undivided (PaDu, CY002; lPMc, MDf, EA002) [Overprint pattern 15] 461 6080 TrMicaChert and limestone, chiefly chert, Penn and Miss (PMc, MD002; TrMc, MD003; RB009) 241 6110 PPagi Granitic plutons south of Denali Fault (MH002; Pag, MS002) 506 14 6120 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] 704 15 6200 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 506 14 6220 Pat Tetelna Volcanics, volcanic flows, etc., lower greenschist facies (Pat, MH002; Pzv, PPt, NB002; Pt, GU002) [Overprint pattern 14] 241 2386230 Pzi Metamorphosed intermediate igneous rocks (Pzi, AR002) [Overprint symbol 238] 704 6300 MDe Endicott Group, undivided. Unit includes the Hunt Fork Shale, Noatak Sandstone, Kanayut Conglomerate, Kekiktuk Conglomerate, and Kayak Shale. (MDe, BM002; Me, DP004; ML002) 704 6320 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) 704 16 6325 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) 706 13 6330 Mk Kayak Shale (Mk, AR002; BM002, DP004; ML002; SP002) [Overprint symbol 13] 742 6335 PMl Younger limestones of Mystic stratigraphic sequence (Mississippian) (uMl, LH004) [Overprint pattern 348] 706 14 6360 Mke Kekiktuk conglomerate (Mke, AR002; DP004; ML002; Mke, Mke?, SP002) [Overprint symbol 14] 706 2386365 Mkk Kayak shale and Kekiktuk conglomerate (Mkk, AR002) [Overprint symbol 238] 706 15 6370 Mc Quartz conglomerate (Mc, AR002) 704 6380 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 461 6390 Mc Chert, Mississippian (Mch, SP002 461 13 6391 MDfl Ford Lake Shale, laminated siliceous shale and chert (MDf, CY002; Ms, ML002) [Overprint pattern 13] 704 13 6400 Mlt Limestone and tuff (Mlt, BM002) [Overprint symbol 13] 678 13 6412 MDv Massive and pillowed basalt and other volcanic rocks (BH002) [Overprint pattern 13] 700 6510 MDt Totatlanika Schist, metavolcanic and metavolcaniclastic rocks, Early Mississippian to Middle Devonian, (MDt, HE002; MM002; Mt, FB002; Pzsg, BD002; very tentatively unit Pzu, TC002) 700 6511 MDt? Totatlanika Schist?, metavolcanic and metavolcaniclastic rocks, Early Mississippian to Middle Devonian, (bc, FB002; PzpCgr, CI002; MDt?, KH) 184 16 6521 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] 184 16 6522 MDrao Augen gneiss and schist, Mississipian or Devonian intrusion age, Ruby terrane (Dao, TN003; Km, MZ002) [overprint pattern 16] 616 2386530 Mgq Globe quartzite unit Similar to Keno Hill Quartzite in Yukon (Mg, LG002; Vitreous quartzite unit of MzPzaq, CI002; Mq, TN003) [Overprint pattern 238] 838 13 6900 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] 570 6902 Dp Phyllite, slate, silicious siltstone, and argillite (Dps, KH002; DOs, KH004; Dp, BV002) 704 6905 Dm Ruby marble (unit Pzm, RB004; Pztbl, RB005) [Dubious age call?, reported in source as Paleozoic?] 570 2386910 Dtr 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] 458 14 6911 Dsc Shale and chert of Mystic stratigraphic sequence (Devonian) (Dsc, LH004; DOs, BH004) [Overprint pattern 14] 573 14 6912 Dmo McCann Hill chert and Olgilvie Formation, undivided (Dmo, CY002) [Overprint pattern 14] 573 13 6913 DOmr McCann Hill Chert and Road River Formation, undivided (DOu, CY002) [Overprint pattern 13] 838 14 6914 MDkn Kanayut conglomerate and Noatak sandstone (MDkn, WI002) [Overprint symbol 14] 838 15 6915 Dk Kanayut Conglomerate (Dk, AR002; Dk, Dk?, SP002; MDk, BM002; MDk, Dkq, CS002) [Overprint symbol 15] 838 16 6916 Dkq Kanayut Conglomerate - Quartz arenite and quartz wacke member (Dkq, SP002; CS002; Dgw, CH002) [Overprint symbol 16] 706 2386917 MDkh 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 570 6920 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) 570 14 6921 Dnr? Calcareous clastic rocks; also Devonian sandstone and shale (Dss, BV002; Pzc, TN002) 570 15 6922 Dnr2? Quartz wacke (Pzw, TN002; KH003) 573 15 6923 Dnrc Conglomerate, Nation River Formation (Dnrc, CY002) [Overprint pattern 15] 509 13 6925 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] 509 7086930 DSl Limestone, Late Devonian (Dql, LG002; Dl, TE002; MU002) [Overprint symbol 708] 458 13 6931 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] 570 16 6934 Dg Dark-greenish-gray fine-grained impure graywacke (Dg, BV002; Pzg, BT002; Dsq, CH002) [Overprint symbol 16] 520 13 6935 Dcs Chloritic siltstone and conglomerate (Dc, AR002; Dqq, CH002) [Overprint symbol 13] 573 6940 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) 836 6944 DSl Limestone (Late Devonian to mid-Silurian) (Dls, KH002, Dl, KH004; CI002; Dlr, Dld, Ml, TN003; Pzl, BV002) 836 6945 Ds Schwatka unit -- Limestone and Ogilvie Formation of Clough (1980), Middle and Early Dev. (Dsl, LG002; CI003; Do, Dwl, CY002; Dl, RB002; DSl, CI002) 902 7086950 DSsk Skajit limestone (DSsk, AR002; SP002; DOs, CS002; DSk, WI002; Dsk, CH002) [Overprint symbol 13] 836 14 6952 DSca Barren Ridge limestone, calcarenite, calcareous siltstone, and limestone (DSl, MG002; MG003; LH004) [Overprint pattern 14] 836 7086955 Dlc Lost Creek unit, lime mudstone and wackestone, Devonian and Silurian (DSl, LG002; Pzmr, TN003; Sl, BR002; Dl, CY002) [Overprint symbol 708] 520 7086956 DSls? Limestone, dolomite, greenstone, and chert (Pzl, TN002; Pzsl, KH002) 520 7086957 DSls (DSls, LH003) 836 14 6960 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 836 6965 DSt Tolovana Limestone, Middle Devonian to Early(?) Silurian, (DSt, LG002; FB002; KH003; KH004) 790 6966 DSt? Limestone, greenstone, and schist (Pzl, TN002) [Overprint symbol 708] 573 6990 DCru Road River Formation, Hillard Limestone and other units, undivided (DCu, CY002; DCl, BR002; DOr, EA002) 678 44 7000 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] 836 3487010 Dsv Schwatka unit, mafic volcanic rocks, Middle and Early Devonian (Dsv, LG002; SOls, CI002) [Overprint pattern 348] 836 3487015 Dwv Woodchopper Volcanics, amygdaloidal basalt, pillow basalt, ..., equivalent to Schwatka unit? (Dw, Dwv, CY002) [Overprint pattern 348] 270 3487080 Ddg Diorite-gabbro (MzPzi, NB002) 934 2387200 DOb Metamorphic rocks, undivided. Includes carbonate rocks; quartzite and slate. Coeval with the Baird Group [DOb, BM002] (DOc, BM002; Dsq, Dmw, Dpm, Ds, Dg, CS002) 934 2387210 DSba 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] 509 7087220 Dkm Kaskawulsh Group of Kindle, mainly marble (Pzk, MC002; Dkm, Pasm, Pas, BG002) 902 14 7230 Dpmc Phyllite and metaconglomerate (Dp, Dms, NB002) 902 14 7235 Dbs Thin bedded black, siliceous, carbonaceous phyllite and impure chert (Dbs, AR002) 509 7240 Dyv Fine-grained schistose volcanic rocks and phyllite, Devonian extrusion age, (hgv, MH002; Dmf, HE002; Pzk, BG002) 509 7242 Dy Yanert Fork sequence, thick sequence of marine metasedimentary and metavolcanic rocks, Late Devonian (unit Dy, Dy?, HE002) 902 16 7245 Dbl Black limestone, calcareous schist, and black siliceous phyllite, undifferentiated (Db, AR002) [Overprint symbol 16] 184 7250 MDyao Medium-grained granitic gneiss, Devonian intrusion age (lgr, jcg, mg, MH002; Dg, WI002; MzPzg, CH002; Pzg, BN002; KZ002; SO002) 699 13 7290 Dms Undifferentiated metasedimentary rocks, Late Devonian (Yanert Fork equivalent) (DSu, MM002) [Overprint pattern 13] 699 13 7291 Dms? Undifferentiated metasedimentary rocks, Late Devonian (DSu?, MM002 [Overprint pattern 13] 699 13 7300 Pzsc Metasedimentary rocks, Late Devonian (Dms, HE002) [Overprint pattern 13] 699 13 7320 Pzsc Metabasalt and subordinate metasedimentary rocks, Late Devonian (Dmb, HE002; jcv, MH002; Dg, NB002) [Overprint pattern 13] 678 7325 Dmgs Serpentinite, basalt, chert and gabbro, Late Devonian (Dsb, HE002; MM002) 612 7330 Dmg Metagabbro, Late Devonian(?) (HE002) 902 15 7350 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] 902 15 7400 DPzmp Pelitic, calcareous, and quartz-feldspar metasedimentary rocks, Devonian or older, (Pzs, NB002) [Overprint symbol 15] 509 14 7402 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 699 15 7261 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] 573 16 7450 DOtu Metasedimentary and metavolcanic rocks of Tukpahlearik Creek, undivided (BM002; SE003) [Overprint 16] 666 7451 DOtq Carbonaceous quartzite and quartz conglomerate of Tukpahlearik Creek (DOtq, BM002) 707 7453 DOtmq Marble and quartz schist of Tukpuhlearik Creek (DOtmq, BM002) 509 44 7454 DOtpg Pelitic schist and greenstone of Tukpaklearik Creek (DOtpg, BM002) [Overprint symbol 44] 836 6615 DSmdl Thin-bedded limestone (Dl, Sl, TL002; DOls, MM002) 836 14 6617 Sab Heceta Limestone, reefoid limestone and algal boundstone in SW Alaska (Sab, TA007; Sch PE002; Sch, Khh, PE003; Shl, CR010) [Overprint symbol 14] 836 13 6620 Spf Paradise Fork Formation and correlative units (Sls, MD002; TA007; Ssh, MG003; Stbl, PE003) [Overprint pattern 13] 836 15 6625 mSl Middle Silurian limestone (Sl, BN002) [Overprint symbol 15] 706 6630 Sta Point Augusta Formation argillite and chert (Staa, JU002; Sa, LH003) 706 6640 Ss Micaceous calc-sandstone (LH003) Gone 704 2386660 Stc Terra Cotta Mountains sandstone, sandstone and graptolitic shale (uSsl, mSl, mSvs, mSs, MG002; mSs, MG003; mSs, LH004) [Overprint pattern 238] 520 6680 SZa Amy Creek unit, siliceous dolomite, chert, and basaltic greenstone, minor limestone, shale..., Silurian(?) to Late Proterozoic (SZa, LG002; PzpCb, CI002; pCa, TN003) 520 6681 SZa? Dolomite and argillite (DSd, CI002) 570 13 6685 SCb Black siltstone and phyllite (SCb, WI002) [Overprint symbol 238] 934 13 7500 OCc Carbonate rocks (OCc, BM002) 934 7510 Olss Tcherskidium-bearing limestone (TA007) 934 15 7515 Os Brown and gray 'chippy' shale, silty shale and silicified limestone (TA007) [Overprint symbol 15] 836 16 7520 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] 934 16 7525 OCjr Jones Ridge Limestone, massive oolitic, typically silicified limestone (OCjr, CY002; COl, BR002) [overprint pattern 16] 934 14 7530 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) 902 7560 Oab Algal boundstone and lime mudstone (TA007) 790 7087570 Ols Lime mudstone (TA007) [Overprint symbol 708] 836 15 7580 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 520 3487610 Ofc Fossil Creek Volcanics, undivided -- Alkali basalt, agglomerate, and volcaniclastic conglomerate (unit Ofv, Ofs, LG002; SOs, CI002; Ofc, TN003) [Overprint pattern 348] 520 3487620 OCv Andesitic to basaltic volcaniclastic rocks and local tuffaceous phyllite, gabbro, and diabase, and black phyllite (OCv, WI002) 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) 520 15 7710 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 1 616 7711 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) 616 13 7970 Ca Adams Argillite (Ca, EA002) [Overprint pattern 13] 616 15 7971 Cqa Quartzite and argillite (pCq, EA0020 [Overprint pattern 15] 616 16 7980 Cf Funnel Creek Limestone (Cf, EA002) [Overprint pattern 16] 306 13 7990 CZtu Tindir Group, upper part, Early Cambrian and Late Proterzoic argillite, quartzite, dolomite, dolo-arenite... (CZtu, CY002; pCp, BR002) [Overprint pattern 13] 301 7088000 CZwl Wickersham unit -- Limestone, Early Cambrian and Late Proterozoic (CZwl, LG002; unk, CI002) 640 8250 CZum Ultramafic and mafic rocks and greenstone, Cambrian and/or preCambrian (CZum, LG002; Pzug, CI002; pCl, BR002) 306 8300 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) 301 8310 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) 836 8340 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) 836 2388350 CZds 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] 306 8410 Zwg Grit, Late Proterozoic, bimodal quartzite, gray and olive-gray greenschist facies argillite (Zwg, LG002, PzpCgq, CI002) 616 8430 ls Various limestone bodies (unk, CI002; pClt, EA002) 640 8450 MzZum Mafic igneous rocks, Paleozoic and/or Late Proterozoic (PzZm, CI003; LG002) 133 9958600 YZnm Nixon Fork metamorphic basement, undivided (part of mca and mcb, RB002; PzpCm, RB003; part of bu, KH00?) [Overprint pattern 995] 306 9988601 PzZrqsRuby 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] 306 8602 PzZs Quartz-mica schist. Assigned to Arctic Alaska terrane (qm, uqm, AR002; PzZs, AR003; SP003; Pzus, Pzqms, Pzqms?, Pzis, SP002) 303 14 8605 PzZk Mixed schists of the Kallarichuk Hills, undivided. Assigned to Seward terrane (PzPku; PzPkc; PzPcb, BM002; PzZu, BM003) [Overprint symbol 14] 133 7088610 YZnc Calc-schist and impure marble, early Paleozoic or preCambrian (unit PzpCc, MD002; Zc, RB009; very tentatively pCl, GO002) [Overprint symbol 708] 836 13 8615 Pzydm Dolomite and marble (PzpCd, CI002; PzPnm, AL003) [Overprint symbol 13] 836 13 8620 Pzrm Metamorphic complex, crystalline limestone, Paleozoic (Ord-Dev) or preCambrian (mcl, RB002; NL002; PzpCc, NL003; Pztbl, RB004) [Overprint symbol 13] 339 8625 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) 136 8630 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)) 341 8632 PzZpg Sillimanite gneiss subunit, pelitic schist (unit PzpCs, CI002) 306 9968633 PzZaqsPelitic and quartzose schist sequence (PzpCp?, MM002) [Overprint symbol 996] 133 15 8640 YZns Pelitic schist of Nixon Fork basement (PzpCp, MD002) [Overprint symbol 15] 341 2388650 PzZmc Metamorphic complex, schist and quartzite with some crystalline limestone, younger unit, Paleozoic (Ord-Dev) or preCambrian (PzPlg, ID002; PzpCku, SE003) 337 14 8660 PzZms Mafic schist (PzpCm, CI002) 133 16 8700 YZnv Felsic metavolcanic rocks of Nixon Fork basement (PzpCv, MD002) [Overprint symbol 16] 512 8710 Ynqd Meta-quartz diorite (ira, RB002; pCm, RB007) 136 16 8801 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] 136 13 8802 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] 306 14 9020 Ytl Tindir Group, lower part, stromatolitic limestone (Ytl, CY002; EA002) [Overprint symbol 14] 306 15 9021 Yts Tindir Group, dolomitic sandstone and shale member (Yts, EA002) [Overprint symbol 15] 640 9040 Ytb Tindir Group, basalt and red beds member (Ytb, EA002) 640 9041 Ytb? Greenstone (pCg, EA002) 608 9045 Zgr Granitic rocks, preCambrian(?) (pCg, BR002; pCgr, SP002; Pi, BM002) 303 13 9300 PzZma Metasedimentary and metavolcanic rocks of Mount Angayukaqsraq (Psv, BM002) [Overprint symbol 13] 132 9320 PzZyqsGreenschist facies muscovite chlorite schist, quartzite and phyllite [Fairbanks schist unit - undivided] (Zf, LG002; PzpCq, CI002) 132 9321 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) 132 9969322 PzZaqsPelitic and quartzose schist of the Alaska Range (bc, FB002 (southern part); ms, jcs, MH002; PzpCp, HE002, MM002; Pzsv, TL002) [Overprint pattern 996] 132 9323 PzZyqsQuartzite subunit of quartzite and quartzitic schist (PzpCq, CI002) 132 7089324 PzZyqsCalc-silicate and marble subunit of quartzite and quartzitic schist (PzpCq, CI002) [Overprint symbol 708] 132 9979325 PzZrqsPelitic 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] 132 9326 PzZyqsGreenschist subunit of quartzite and quartzitic schist (PzpCq, CI002) [Not found yet on map.] 132 13 9327 PzZyqsQuartzitic and pelitic schist of the Yukon-Tanana crystalline complex (bc [northern part], FB002; PzpCs, PzpCsq, BD002; PzZng, AL003; part TKbg, TR005; PzZng?, SD013) 343 9400 Xi Idono Complex, Early Proterozoic, metaplutonic rocks, amphibolite, and minor metasedimentary rocks (ID002) 343 9420 Xo Amphibolite facies orthogniess and minor amphibolite and pelitic schist. Kanektok or Kilbuck terrane (Xo, BH002, pCk, GO002; pCm, BH003) 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 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) 44 20000 Hornfelsed zones. (TKhf, RM004) 742 14 5736 Psc Step Conglomerate, Permian, chert and quartzite clast pebble- and cobble conglomerate (Ps, CY002; Pq, BR002; Pc, EA002) [Overprint pattern 14] 305 7455 DOtp Pelitic schists of Tukpaklearik Creek (DOtp, BM002) [Overprint symbol 16] 700 7086927 Dbc Beaucoup Formation, (Dbls, Dbsg, Dbcw, CS002; Dbc, Dbc?, Dbs, Dbs?, Dw, Dw?, Pzwv, WI002; Pzr, BM002; Dls, CH002) [Overprint symbol 708] 347 2385212 MzPzt Silicified tuff, white, light-tan, light-gray silica rock [Overprint symbol 238] 803 13 2124 Kkt Kandik Group; Kathul Graywacke (Kka, CY002) 803 2122 Kkd Kandik Group equivalent, Mount Goodenough in Yukon? 306 9010 Zt Pinguicula/Fifteen Mile (Lower) and Tindir Group, lower partt (muPPFu, mPPFl, Yukon; muPPFu1, mPPFl1, YLS002; YNR002; muPPFu2, mPPFl2, YDW002; mPPFl3, YOG002; mPPFl1, YNC002; YSR002; YWR002) 325 2383860 JTrgb Gabbro, associated basalt and andesite(?), minor diorite and diabase, and undiffereniated mafic- and intermediate composition igneous rocks. (TMzm, EA002; Mzgb, TC002; MzPzmu, YT003) 742 15 5970 Pks Klondike Schist, poorly understood assemblage of metamorphosed pelitic/volcanic rocks and minor marble. (PzpCk, TC002; Pzqc, YT003; CPK, Yukon) [Overprint symbol 15] 742 7085971 Pksm Klondike Schist, marble. (CPK2, Yukon) [Overprint symbol 708] 672 2446 Kvgb Coarse-grained gabbro, Valdez Group (Kvgb, SR002; BS002) 672 2435 Ksd Sheeted dikes, Valdez Group (Ksd, SR002; BS002; Ksd, BS004; SR004) 37 13 794 Tak Amphithreatre and Kulthieth, mostly fluvial and lacustrine deposits, local debris-flow deposits; some shallow marine (OA, YDZ002; YKL002; YMS002) [Overprint symbol 13] 971 3040 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) 971 3042 Jb Bug Creek Group, succession of alternating coarse and fine clastic formations (JB2, YOC002; YDM002; YBE002) 915 3640 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) 971 16 3195 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] 124 44 2220 Ksf South Fork Volcanics, locally columnar jointed, massive, densely welded, biotite-quartz-hornblende-feldspar crystal tuff (KSF, YFL002; YSL002; YTY002) [Overprint symbol 44] 325 13 3505 eJn Nordenskiold Dacite (lJN, YAL002; YCK002; YGL002; YLB002; YWH002) [Overprint symbol 13] 912 13 4055 lTrs Synorogenic clastics (uTrS, YFL002; YMQ002; YTS002; YTY002; YWF002; YWL002) [Overprint symbol 13] 468 13 4315 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 375 4460 Trg Galena Suite, massive, medium-grained hornblende diorite and gabbro sills; serpentinized greenstone sills (TrG, YDW002; YLR002; YLS002; YMY002; YNC002; YNR002) 506 3484910 KPzw Windy, quartz-chlorite-sericite schist, epidote-actinolite greenschist, quartzite, slate, quartz-mica schist, limestone (PMW5, YKL002) [Overprint pattern 348] 248 2910 KJse Saint Elias Suite, biotite hornblende granodiorite; lesser tonalite; locally quartz monzodiorite, quartz diorite, granite, and quartz monzonite (JKS, YDZ002; YKL002; YMS002) 841 14 5760 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] 184 6450 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) 270 3487050 Dgr Old Crow Suite, undivided (MLDO) [Overprint symbol 348] 270 3487051 Dgr 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] 270 3487052 Dsr Old Crow Suite granitic rocks: leucocratic syenite to hornblende nepheline syenite, Dave Lord syenodiorite (MLDyO, YOC002) [Overprint symbol 348] 306 8010 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 301 7088005 mCa Avalanche, light grey, buff, yellow, and orange weathering, crypto grained dolomite, silty dolomite, dolomitic siltstone and dolomitic mudstone (mCA, YFR002; YLN002) [Overprint symbol 708] 306 8011 CZnp Neruokpuk, turbiditic sandstone, quartzite, grit, and pebble conglomerate interbedded with siltstone and lesser argillite (uPCN, YDM002; YHI002) 306 8012 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) 616 13 8006 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] 301 7088007 mCr 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] 343 15 9150 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, 305 7089160 lPg 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 305 9170 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 305 13 9180 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 10 3489210 mPhr Hart River, undivided Mafic volcanic flows and and their possible intrusive equivalents (mPH, Yukon) [Overprint symbol 348] 10 3489211 mPhv Hart River Volcanics: mafic volcanic flows, generally massive and fine-grained, locally pillowed (mPH1, YLS002; YPR002) [Overprint symbol 348] 10 3489212 mPhs Hart River Sills: resistant dark weathering diorite and gabbro sills and dikes (mPH2, YDW002; YLS002; YNC002; YNR002; YOC002; YPR002; YWR002) [Overprint symbol 348] 10 3489213 mPkc Khose Creek Volcanics: basic to intermediate volcanic flows and aquagene tuffs (mPH3, YNC002) [Overprint symbol 348] 12 13 317 Qvs Bedded volcanic sediments (Qs, UK002; RI003) 740 238103 Tidal flat and estuarine deposits, offshore, subject to inundation (KN008) 40 13 953 Toss ORCA GROUP: Dark-gray to black siltstone, mudstone, and minor fine-grained sandstone (Toss, BS004; SR004) 416 14 1136 Top Orca Group: Pillow basalt (Top, Tops, BS004; CV002; SR004) 634 13 1420 Togs ORCA GROUP: Greenstone and sedimentary rocks (Togs, BS004; SR004) 516 13 2280 Kvp Valdez. Group: Pillow basalt; in some areas, interlayered with subordinate pillow breccia and tuff (Kvp, BS004; SR004) 672 2447 Kvu VALDEZ GROUP: Dunite, locally with layers of chromite (Kvu, SR004) 749 16 2710 Kvg Valdez Group -- Schistose metaflysch (Kvm, av, avp, BG002; Kvm, CV003; Kvm, Kvsm, MS002; Kvs, BS004; SR004; mlg, mlp, msb, MF003; TKmlg, SK002) 516 14 2715 Kvsg Valdez Group -- Schistose to gneissic metaflysch and migmatite (Kvg, BG003; CV002; CV003; Kvg, ap, BG002; mgb, MF003) [Overprint symbol 14] 977 44 5521 MzPzr Reindeer Hills complex of altered carbonate rocks, schist and quartzite, and shallow intrusive rocks (NR002) [Overprint symbol 44] 851 13 1971 uKss Fine sandstone, siltstone, and shale, Kuskokwim Group [Overprint symbol 13] 605 5241 MzPzm Metabasite, Arctic Alaska terrane (MzPzm, AR003; BM003; HU003; SP003; WI003) 251 15 2490 mKg Granite 85-110 Ma [Overprint symbol 15] 251 15 2491 mKqm Quartz monzonite, monzonite, and syenite 85-110 Ma (Kq, SL002; Kkz, Kku, Kvb, BN002; Kd, BN002; SO002) [Overprint symbol 15] 251 15 2493 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 24 139 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] 803 14 2102 Kgcg Calcareous graywacke and conglomerate (Kcg, GO002) [Overprint symbol 14] 81 15 565 Ty Yakataga Formation (Ty, MI002; QTy, CV003; MS002; BG002; Albatross, TI004) [Overprint symbol 15] 35 16 675 Trf Redwood Formation (Tr, BG003; CV002; CV003) [Overprint symbol 16] 37 14 680 Tpc Poul Creek Formation sedimentary and volcanic rocks, undivided (Tp, BG002; Tps, BG003; CV002; CV003; MI002; Tp, MS002) 139 13 810 Ttf Tokun Formation (Tt, BG002; BG003; CV002; CV003) [Overprint symbol 13] 139 14 875 Tslo Siltstone of Oily Lake (Ts, MS002) [Overprint symbol 14] 372 1375 Tou Orca Group ultramafic rocks (Tou, SR002) 749 2382702 Kvvs Valdez Group, Interbedded volcanic and sedimentary rocks (Kvvs, BG002; CV002; CV003; SR002) [Overprint symbol 238] 139 14 820 Tswf Stillwater Formation(?) (Ts, BG002; BG003; CV002; CV003) [Overprint symbol 14] 602 14 2191 Mzpg Phyllite/greenstone melange; occurs structurally between the McHugh Complex and Valdez Group (Mzpg, BG002) 24 13 191 Qewd Drumlins associated with early glaciations (Qewd, DI005; TA015) [Overprint symbol 13] 24 13 194 Qmhg Early Wisconsin (Mak Hill and Iowithla) ground moraine (Qmg, Qig, DI002; TA002; Qewg, DI005) [Overprint symbol 13] 1090 Tmd Mafic dikes, sills, and plugs (Tm, CV002; CV003; QTd, PE002) 797 2830 KJag Marine volcaniclastic sandstone, conglomerate, and argillite (KCg1, DI002; TA002; KJs, TA003; TA004; KCgg, BH004; Jvs, BH002) 971 15 3150 Jkw Graywacke of Kulukak Bay (Weary Graywacke) (Jk, DI003; DI005; GO002; HG002; NG002; KJs, IL002; LC002) [Overprint symbol 15] 905 7084011 Trlc Triassic limestone, shale, and chert (TA008) [Overprint symbol 708] 303 8500 PzZi Meta-intrusive rocks of intermediate composition (BM002) 303 15 8606 PzZss Siliceous schist of the Kallarichuk Hills. Assigned to Seward terrane (PzPks, BM002; PzZs, BM003) 836 5560 Pzp Phyllite of Arctic Alaska terrane (Pzp, HU003; WI003; SP002; BT002; Dp in part, HU002) 836 14 5565 Pzg Metagraywacke of Arctic Alaska and Ruby terrane (Pzg, HU003; WI003, SP003, AR003; BT002) 7 999 fg Rocks within major fault zones; may be cataclastic or mylonitic, variable ages depending on fault and country rocks (TN007) 851 14 1975 Kkc Kuskokwim Group, sedimentary rocks, conglomerate facies (Kks, BH004) 973 14 4711 MzPzgcLava flows in undivided Gemuk Group, chiefly siltstone and lesser chert and volcanic rocks (part KCg, BH004) 973 14 4712 MzPzgcLimestone in undivided Gemuk Group, chiefly siltstone and lesser chert and volcanic rocks (part KCg, BH004) 973 15 4713 MzPzgvVolcanic breccia in undivided Gemuk Group, chiefly siltstone and lesser chert and volcanic rocks (part KCg, BH004) 10 15 7581 Oc Chert and phyllite, Telida sub-terrane of Munchumina terrane (part Pzc, MD002; Oc, MD005; RB009) [Overprint pattern 15] 468 5145 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) 793 2182 Klvm Earliest Cretaceous volcanic conglomerate (Kvg, MD002; OP002) 78 44 404 Qbd Basalt dome (Tmd, Tpd, Tpv, AD002) [Overprint symbol 44] 410 14 454 QTob Olivine basalt flows (AD005) [Overprint symbol 14] 915 1550 TMzu Basement rocks - undifferentiated (TMzu, AT004) 915 15 1553 TMzc Basement rocks - conglomerate, argillite, siltstone, and chert. (TMzc, AT004) [Overprint symbol 15] 63 475 QTk Kiska Harbor Formation (QTk, KK002) 63 13 476 QTkb Kiska Harbor Formation, breccia member (QTkb, KK002) [Overprint symbol 13] 63 14 477 QTkf Kiska Harbor Formation, flow member (QTkf, KK002) [Overprint symbol 14] 365 16 1095 Tka Krugoli Formation, tuff and tuff-agglomerate. TMzkt, AT004) [Overprint symbol 16] 78 15 466 QTvb Pochnoi Volcanics - Tuff-breccia, lava flows, and agglomerate, largely basaltic (QTpo, RI002) 410 14 452 QTd Dacite (QTwi, NB007) [Overprint symbol 14] 12 14 336 Qvda Dacite and rhyodacite (Qls, Qd, RI003; da, CG003) [Overprint symbol 14] 12 15 335 Qva Andesite and low-silica dacite (Qe, RI003; an, CG003) [Overprint symbol 15] 12 16 337 Qvr Rhyolite 420 16 1066 Tlp Lavas and pyroclastic deposits, most likely Miocene or younger Tertiary (Tvl, Tvp, Tvu, GI003; Tp, GI005; Tt, Ttb, Tvl, AD006) 410 15 453 QTr Rhyolite (QTvr, CR010) [Overprint symbol 15] 273 16 1271 Togp Granite and quartz monzonite porphyry (Tgp, KC002) [Overprint symbol 16] 205 14 1676 TKtp Trondhjemitic pegmatite (TKp, KC002) [Overprint symbol 14] 672 2495 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) 94 13 1252 Tmog Biotite quartz monzonite (Tqm, KC002; Tnme, PE002; PE003; Tme, CR010) [Overprint symbol 13] 963 13 2620 eKqm Foliated quartz monzonite and granodiorite (Kfq, KC002) [Overprint symbol 13] 793 15 2975 KJgc Polymictic metaconglomerate, Gravina related (MzPzmc, KC002) [Overprint symbol 15] 124 13 2336 Kft Shoshonitic flows and tuffs (Kft, UL002) [Overprint symbol 13] 580 14 2990 KJmqd Metamorphosed quartz diorite, granodiorite, and diorite (KJgd, KC002) [Overprint symbol 14] 944 5270 TrPzmsAlava sequence, undivided Permian and Triassic (MzPzp, KC003; MzPzsv, PE002) 605 15 5244 TrPzvsStikine, recrystallized volcanic and sedimentary rocks (MzPzvs, BC003; KC002; Pzvs, BC003; Tehv, JU002; TR003) [Overprint symbol 15] 347 5275 MzZog Metamorphosed granitic plutonic rocks (orthogneiss) (TKfg, KC002; MzPzgn, BC002; MzPzpo, BC003; Tgdg, PE003) 506 5952 Pm Marble (Pm, KC002; KC006) 270 13 6730 St Trondhjemite (St, Smt, KC002; Stj, CR010) [Overprint symbol 13] 836 13 6815 SOm Marble and subordinate metavolcanic and metasediemntary phyllite and schist (m, KC002) [Overprint symbol 13] 311 13 6800 SOsv Metamorphosed extrusive, intrusive, and sedimentary rocks, undivided (SOu, KC002) [Overprint symbol 13] 311 14 6805 SOmi Metamorphosed Intermediate and mafic plutonic rocks (SOui, KC002; SOmk, Omr, CR010) [Overprint symbol 14] 177 13 1305 Tegd Coast Plutonic Complex (Tgq, KC002; Tgdp, Tgrg, PE002; Tgdb, PE003; Tegd, PE004; SD005; Tgdb, Tlg, BC002; Tgq, Tlg, BC003) [Overprint symbol 13] 177 14 1309 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] 205 15 1662 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] 506 3620 Jmgd Texas Creek granodiorite (metamorphosed) (JTrt, BC003; Trt, KC002) [Reconsider color] 311 15 5515 Pzsqm Metamorphosed sedimentary, volcanic, and intrusive rocks, undivided (part MzPzms, MzPzu, KC005; MzPzmc, CR010) [Overprint symbol 15] 605 16 5265 MzPzmiMainly regionally metamorphosed or otherwise recrystallized or altered diorite, quartz diorite, and gabbro (MzPzmi, KC002; CR010) [Overprint symbol 16] 605 5272 TrPv Alava sequence, metavolcanic rocks, derived primarily from submarine andesitic or basaltic lava flows, tuff, and agglomerate (part MzPzmv, KC005; MzPzmv, CR010) 506 15 5681 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] 136 14 5676 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] 836 7085526 Pzm Marble, Paleozoic (m, KC002) [Overprint symbol 708] 468 14 4500 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] 699 14 7205 Dsv 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 (PE002; DO 374 44 4471 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] 374 15 4472 Trhb Hyd Group breccia (Trhb, PE002; PE003; Trhb, CR010) [Overprint symbol 15] 374 7084473 Trhl Hyd Group limestone and dolomite (Trl, KC002; Trhl, PE002; PE003; Trhl, CR010) [Overprint symbol 708] 374 13 4474 Trhf Hyd Group felsic volcanic rocks, includes Puppets Formation on Gravina Island (Trv, KC002; Trhv, CR010) [Overprint symbol 13] 374 4470 Trhg Hyd Group, undivided (Trsv, KC002, Trhsv, Trh, PE002; Trhsv, CR010) 76 16 1043 Twd Wrangell Lava, dome and hypabyssal rocks (Th, MC100; Tsd, Tr, Tdh, Tdr, Trr, MC003) [Overprint symbol 16] 76 1040 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] 76 15 1041 Twr Wrangell Lava, rhyolitic rocks, undivided (Trt, Tpf, Trp, Tsa, MC003) [Overprint symbol 15] 76 12 1042 Twor Wrangell Lava, obsidian-bearing rhyolite flow (Twr, MC003) [Overprint symbol 12] 94 1251 Tmgr Granite and granitic rocks (Tgr, BC003; Tmae, Tmge, Tmaz, Tmgk, Tag, PE002: Tmae, Tmge, Tmgk, PE003; Tge, CR010) 672 2494 mKgb Gabbro (not zoned ultramafic) (Kwgb, CR010) 365 15 1087 Tvc Chiefly block and ash deposits, mafic to felsic tuff, tuff breccia, lapilli tuff, and unclassified pyroclastic deposits (QTc, PE002; PE003) [Overprint symbol 15] 88 510 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) 420 14 1054 Tmrf Rhyolite (Tfv, BC003;Tdr, PE002) [Overprint symbol 14] 177 15 1450 Tcpm Leucocratic granodioritic migmatite of the Coast Plutonic Complex (Tlgm, BC002; PE002) [Overprint symbol 15] 205 1663 TKtm Tonalite migmatite of the tonalite sill of the Coast Plutonic Complex (Ttom, PE002; Tmgx, PE003; TKtmk, TKtm, AL003) [Overprint symbol 16] 177 16 1451 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] 374 4475 Trha Hyd Group argillite (Trha, PE002) [Overprint symbol 14] 974 4501 Trclt Perseverance Slate and related Alava slate and phyllite (Trs, KC002) 841 15 5765 Pp Pybus Formation, limestone and dolostone (Pp, PE002; PE003; CR010) [Overprint symbol 15] 836 7086618 Stpc 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] 251 16 2492 mKgd Intermediate granitic rocks, mostly granodiorite (Kwqo, PE002; Kwqo, Kwan, PE003) [Overprint symbol 16] 841 7085766 Phl Halleck Formation calcareous siltstone to conglomerate (Phl, PA003; PE003) [Overprint symbol 708] 704 7086030 PAl Crinoidal limestone (Cl, PE003; Pal, CR010) [Overprint symbol 708] 241 13 5875 PPasy Syenite (PCsy, PE002; PPasy, CR010) [Overprint symbol 13] 841 16 5770 PMcs Cannery Formation, chert and siliciceous shales (Pc, JU002; PMc, JU004; PE002; SD003; SD004; SI005; MDc, PE003) [Overprint symbol 16] 704 7086031 PAk Klawak Formation, clastic (Pak, CR010) [Overprint symbol 16] 699 15 6619 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] 520 14 6690 SOt Descon Formation graywacke turbidites (SOdg, PE002; SOtdg, PE003; SOdg, CR010) [Overprint symbol 14] 520 7086691 SOl Descon Formation limestone (SOdl, PE002) [Overprint symbol 708] 270 14 6740 Sv Silurian volcanic rocks (Stpc, PE002; Stpc, PE002; Stpc, Stbv, PE003) [Overprint symbol 14] 944 13 5271 TrPsa Alava sequence, metasedimentary rocks (part of MzPzms and MzPzu, KC005; SOms, SOmv, SOmc, CR010) [Overprint symbol 13] 423 15 6825 SOgs Greenstone and greenschist, possible Descon association (Pzmv, MF003; SOb, CR005) [Overprint symbol 44] 980 16 5305 Pzsv Sedimenatary and volcanic rocks (Pzls, Pzvs, BC003) [Overprint symbol 16] 136 15 5677 PzZbc Polymictic conglomerate in a schistose matrix (MzPzsc, PE002) [Overprint symbol 15] Reconsider color 136 16 5678 PzZhg Metavolcanic hornblende schist and gniess (MzPzhs, MzPzhg, PE002; TKhg, TKhs, PE003) [Overprint symbol 16] Reconsider color 136 7085679 PzZm Marble and interbedded schist (MzPzm, BC002; PE002; MzPzmb, BC003; TKmb, PE003) [Overprint symbol 708] Reconsider color 339 13 8626 PzZas Metamorphic rocks, Alexander terrane (PzpCm, PE002) [Overprint symbol 13] 423 15 1293 Toed Oligocene and Eocene diorite (Td, CG002; Mafic phase, Miners Bay pluton, Tmm, AN002; Tmb, AN004) [Overprint symbol 15] 413 14 1125 Tbep Mafic basalt, layered tuff, tuff breccia and breccia (Tv, MS002; GO002; HG002; NG002; Khc, SM006) [Overprint symbol 14] 325 15 3900 JTrdi Diorite (JU004) [Overprint symbol 15] 468 13 4350 Tradi Quartz diorite and lesser granodiorite and diorite, Alexander (TKgd, part, JU002; Trgd, Trd, Mzg, SI005; Trg, KC002; Mzg, PE002) [Overprint symbol 13] 605 13 4520 Trgn Orthogniess (Trgn, SI005; MzPzm, pazrt, JU002) [Overprint symbol 13] 841 5720 Pal Argillite and limestone (Pua, PCl, JU002; Ps, CO002) 704 14 6340 Mls Iyoukeen and Peratrovich Formations, limestone, black chert, and black shale (Mi, JU002; SI003; Mp, CR010) [Overprint symbol 14] 699 16 6937 eDcg Conglomerate, Lower Devonian (Dkbn, Dkcg, CR010) [Overprint symbol 16] 573 15 6936 Drl Sandstone, red beds, Lower to Middle Devonian, includes Cedar Cove Formation (Dsv, KC002; Dkkr, Dksn, Dkcb, CR010) [Overprint symbol 15] 678 15 7020 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] 836 7086616 Stl Point Augusta Formation limestone horizon within turbidite deposits (Sal, SI003; Stal, JU002) [Overprint symbol 708] 672 2550 eKgb Gabbro of Tenakee Inlet on Chichagof Island (Tg(?), SI006; Kku, CR010) 174 16 1130 Tvig Intermediate to felsic biotite tuff (Tvi, DI005) [Overprint symbol 16] 793 2855 KJkr Koksetna River sequence, Jura-Cretaceous flysch, southern part of Kahiltna terrane (KJkr, LC003; LC006; LH005) 413 1086 Tvrd Rhyolitic to dacitic volcanic rocks (QTr, QTv, PE002; QTr, QTf, PE003) [Overprint symbol 13 251 3482625 eKmg Migmatite associated with western plutonic belt of southeast Alaska (Wales-Chichagof arc) (Kwmg, JU002; Krmg, CR010) [Overprint symbol 348] 836 16 6929 lDl Late Devonian thin-bedded limestone (Dl, PA003; SI005; Dct, SI005) [Overprint 16] 836 16 6953 DSr Rendu Formation and related units, argillite and silty limestone turbidite (DSr, DSrt, SK002; Pzam, Pzaam?, Pzmt, Pzmt?, Pzmb, SK004; Pzam, SK011) 678 16 7021 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] 742 2385737 Pstl Tahkandit Limestone, massive bioclastic limestone and Step Conglomerate, Permian, chert and quartzite clast pebble- and cobble conglomerate, undivided (Pst, CY005) [Overprint pattern 238] 803 14 2145 Kus Unnamed sandstone along Nation River, stratigraphically below Keenan Quartzite (Ku, CY005) [Overprint symbol 14] 754 2840 KJyg Yakutat Group, undivided (MS002) 754 13 2841 KJys Yakutat Group and Sitka Graywacke, flysch facies (Kys, Kys(?), BG002; MS002) [Overprint symbol 13] 602 2950 KJyx Yakutat Group and Khaz Melange, melange facies (Kyx, MS002; YA002; Kk, MF002; SI004; Kym, Kys, MF003; KJk, KJkh, PA002; SI002; KJkm, SI002; JTrk, PA004; SI006) [Overprint symbol 238] 602 14 2951 KJyxs Yakutat Group, melange facies, sandstone masses (Kyxs, MS002) 602 14 2952 KJyxc Yakutat Group, melange facies, conglomerate masses (Kyxc, MS002) 602 14 2953 KJyxg Yakutat Group, melange facies, greenstone masses (Kyxg, MS002) 602 14 2954 KJyxd Yakutat Group, melange facies, tonalite masses (Kyxd, MS002) 602 13 2980 KJyb Metamorphic rocks of the Brabazon Range (Yakutat Group equivalent) (Kyb, MS002) [Overprint symbol 16] 793 15 2981 Kynf Schist of Nunatak Fiord (Kym, Kyn, Kyxm, Kyvm, MS002) [Overprint 15] 237 14 1308 Teqd Quartz diorite (Tqd, MS002) [Overprint symbol 14] 18 118 Qms Mineral spring and mud volcano deposits (Qms, GU002; Qme, MC004) 516 6540 MDcp Carbonaceous phyllite 209 15 5516 Pzmv Metamorphosed volcanic rocks, Kah Shakes sequence (part MzPzmv, KC005) [Overprint symbol 15] 337 13 5682 Pzgm Portland Peninsula gneiss and marble (Pzgm, KC005) [Overprint symbol 13] 18 109 Qoa Older alluvium (Qc, GU002; Qao, MC004; LC005) 18 119 Qda Active dume deposits (For YK map initially; AR, KT quads) 24 124 Qgl Glaciolacustrine deposits (Ql, GU002; Qgl, MC004) 605 5242 MzPzm Metabasite, Ruby terrane (PzpCm, NL003; MzPzm, BT003) 605 5243 MzPzm Metabasite, Seward terrane (MzPzm, SE002; SE004) 184 16 6523 MDaao Augen gneiss and schist, Mississipian or Devonian intrusion age, Arctic Alaska terrane (Kg1, SH002; Dgn, SH004) [overprint pattern 16] 836 5561 Pzp Phyllite of Ruby terrane (Pzp, TN008) 978 13 2872 KJvs Volcanic and sedimentary rocks (KJvs, DI002; KJvs, GO002; DI007; DI005) 273 15 1273 Togd Granodiorite and quartz diorite (Ti, MC002; MS002; Tg, SR004; Tgd, MK002) 793 16 2971 KJgm Undifferentiated greenstone, metapelitic rocks, and metasandstone of the Gravina belt (KJsu, JU002) [Overprint symbol 16] 797 13 2822 KJgb Sedimentary and volcanic rocks of the Gravina belt, undivided (KJsu, JU002; KJs, KJsh, SI005; KJgg, Jgs, CR010) [Overprint symbol 13] 754 13 2845 KJsg Sitka Graywacke and Khaz Sandstone (KJs, KJsh, SI002; PA002; Ks, Ksh, SI004; KJks, SI002; Ksh, MF002) [Overprint symbol 13] 325 15 3410 Jpg Bokan Mountain peralkaline granite and syenite (Jg, CR002; Jbgr, Jbsy, CR010) [Overprint symbol 15] 912 15 4140 Trls Stikine terrane limestone, sandy limestone, and mudstone (Trsl, AL003) [Overprint symbol 15] 974 13 4510 Trpp Pinnacle Peak phyllite and phyllite of Rodman Bay (Trp, SI002; Kpp, SI004) [Overprint symbol 13] 905 15 4010 Trvs Volcaniclastic rocks of Rodman Bay and sedimentary and solcanic rocks of Nakwasina Sound (Trsv, Trsv?, SI002; PA002; Pmup, SK002; MF003) [Overprint symbol 15] 912 7084512 Trml Marble of Nakwasina Sound and limestone blocks in Freeburn Assemblage (Kfl, SI004; Trm, SI002; PA002; Pmum, SK002; MF003) [Overprint symbol 708] 76 1024 Thb Paniau, Waimea Canyon, and Waianae Volcanic Series, tholeiitic basalt, olivine basalt and oceanite (Tp, Tw, KA004; Twu, Twl, OA003) 345 1045 Thgm Paniau, Waimea Canyon, and Waianae Volcanic Series, small mass of gabbro (Tpi, Twi6, KA004; Twi3, OA003) 76 13 1035 Twca Waimea Canyon volcanic series; Makaweli Formation ash and tuffaceous soil (Twma, KA003) 76 14 1036 Thc Waimea Canyon and Waianae Volcanic Series, cinder, spatter, or littorial cones (Twc, KA004; Twuc, Twlc, OA003) 413 14 370 Qhcl Koolau and West Molokai (lower) Volcanic Series, cinder, spatter, and littoral cones - Early Pleistocene (Qkc3, OA003) 413 360 Qhvl Koolau and West Molokai (lower) Volcanic Series - Early Pleistocene (Qk3, Qwl, OA003) 790 708270 Qfr Fringing and fossil carbonate reefs (Qr3, OA003; Qr2, Qr1, MW006) [Overprint symbol 708] 12 321 Qpc Pit craters and calderas {feature, not really unit} (Qkp, Qpt, HI002) 78 340 Qvd Viscous domes in young Hawaiian volcanic rocks, Hawi and Laupahoehoe Volcanic Series (Qhd, Qld, HI002) 78 14 341 Qgm Small masses of gabbro in young Hawaiian volcanic rocks, Kahuku Volcanic Series (Qkhi, HI002) 410 355 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 410 13 356 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) 410 15 358 Qhvd East Molokai Volcanic Series (upper), Honolua Volcanic Series viscous domes (Qeud, OA003; Qhod, MW006) 410 44 359 Qhgm West Molokai Volcanic Sereis (lower) and Wailuku, Kula, Kanapou, and Pololu Volcanic Series, gabbro masses (Qwli, Qwi, Qki7, Qki4, MW006; Qpoi, HI002) 841 13 5771 PMcc Cannery Formation, carbonaceous facies 841 7085772 PMcl Cannery Formation, limestone and marble facies [Overprint symbol 708] 700 13 6928 Dpr Port Refugio Formation (Dp, CR003; Dpr, CR010) [Overprint symbol 13] 836 7086938 eDl Kassan Limestone, part of Karheen (Dkl, CR010; Dcbl, MF003) [Overprint 708] 700 14 6901 Du Southeast Alaska undivided Devonian rocks [Overprint symbol 16] 699 14 7310 Dsc Retreat Group; black siliceous phyllite on Admiralty Island [Overprint symbol 14] 699 7087315 Pzcs Calcareous schist (Pzcs, Pzc, AR002; Dac, Dcm; CHoo2; DCks, KZ002; KZ003; SO002; SO004; Pzca, SP002; PzPcs, WI002) [Overprint symbol 708] 345 6750 Sum Ultramafic rocks, southeast Alaska (SOpx, SOhb, CR010) 520 7650 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) 270 3487060 Dsy Syenite, Chichagof Island, southeast Alaska, Alexander terrane [Overprint symbol 348] 270 16 7065 Dqd Quartz diorite, Prince of Wales Island, southeast Alaska (single pluton, part of mKgd, CR010) [Overprint symbol 16] 706 16 6631 DSs Staney Creek sandstone, limestone and dolostone, shallow water facies rocks (DSs, CR010) [Overprint symbol 16] 303 8750 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 303 13 8751 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] 303 7088752 PzZc 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] 136 13 8753 PzZf Wales, Retreat Groups, and Four Winds Mountain metamorphic rocks metafelsite (CZwf, CR005; Kh, Ws, CR006; DE005; pOwd, DE004) [Overprint symbol 13] 303 14 8754 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] 512 13 8720 CZog Kaigani, False Point Retreat, and Bronaugh Islands plutons (orthogneiss) (Cqd, Cdi, Cgb, Cmgi, CR010; JU, KC) [Overprint symbol 13] 678 13 7022 DSv Berg Mountain, largely mafic volcanic rocks (DSbv, DSbb, SK002; SK010; JU003; DSbb, DSbb?, DSbv, JU002) [Overprint symbol 13] 706 44 6375 MDk Kayak Shale and Kanayut Conglomerate (MDk, CH002) [Overprint symbol 44] 420 15 1060 Tav Admiralty Island and Cenotaph Volcanics, undivided (Tc, MF003; Ta, SI005) [Overprint symbol 15] 420 14 1061 Tar Admiralty Island and Cenotaph Volcanics, rhyolite (QTv, PA003; QTr, PA003; PE002: PE003; Tar, SI005) [Overprint symbol 14] 420 16 1062 Tavd Admiralty Island and Cenotaph Volcanics, dacite (Tmd, PA003; QTf, Tmd, PE003) [Overprint symbol 16] 420 16 1063 Tava Admiralty Island and Cenotaph Volcanics, andesite (QTa, PE003; Taa, SI005; Tsan, SK002) [Overprint symbol 16] 420 1064 Tavb Admiralty Island and Cenotaph Volcanics, basalt (Tb, BC003; QTb, PA003; PE002; PE003; Tavb, Tab, SI005) 420 44 1065 Tavc Admiralty Island and Cenotaph Volcanics, volcaniclastic rocks (QTc, PA003; PE002; PE003; Taft, Tavc, SI005) [Overprint symbol 44] 468 15 4511 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] 793 44 2824 Mzc Conglomerate and sandstone, possibly northern shore facies of Nutzotin Mountains sequence (TKc, NB002) [Overprint symbol 44] 209 13 5636 Pzv Windy terrane volcanic rocks (Pzv, NB002) [Overprint symbol 13] 912 4029 Trl Upper Triassic limestone, might not be Chitistone -- Nizina equivalent (Trl, NB002) 742 5756 Pels Limestone of the Eagle Creek Formation (Pel, NB002) 633 4325 Trsgb Stikine terrane hornblende diorite and gabbro (Trkd, Trkg, AL003) 633 4326 Trsum Stikine terrane hornblende ultramafic rocks (Trkp, AL003) 468 13 4351 Traum Alexander terrane ultramafic rocks 337 5276 MzZog Paleozoic otrthogneiss (Pzsg, Pzsm, AL003) 699 13 7260 Dav Ambler metavolcanic and lesser metasedimentary rocks (Da, Da?, Dm, WI002; MzPzfm, WI003) [Overprint symbol 13] 270 5871 Pmgi Ahtell pluton (PPf, PPp, PPg, GU002; ) 24 16 123 Qglf Glacial outwash derived fans deposited in ephermeral glacial lakes (Qglf, LC005) 5 13 275 Qsb Glaciallly scoured bedrock; may be covered with thin glacially derived deposits (Qsb, LC005; KN008) 24 44 145 Qbld Drumlin deposits in ground moraine fields of Brooks Lake glacial deposits (Qbld, LC005) 934 7087206 Dm Gambier Bay Formation Marble (DSl, JU002; Pzm, JU004; SI005; Dgm, SI005; Pzam, SI007) [Overprint symbol 708] 337 15 8665 PzZyv Metabasite, massive mafic semischist and agmatite in the Coast Mountains (TKhg, JU002) [Overprint symbol 15] 337 16 5683 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 1 980 44 5325 PPas Skolai Group undivided; also Skolai Group, greenstone, Early Permian to Middle Pennsylvanian (Pzs, VA002) [Overprint symbol 44] 24 238221 Tmpo Very old outwash deposits (QTgo, DI005) [Overprint symbol 238] 24 14 201 Qmig Glacial deposits of unnamed Illinoian(?) glaciations, ground moraine (Qug, DI002; TA002; TA015) [Overprint symbol 14] 979 16 2185 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 912 14 4120 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] 458 16 6090 PMn Nuka Formation (lPMn5, DL004; PMn5, MU002) [Overprint symbol 16] 461 13 6395 Mks Kurupa Sandstone (Mku, KL002) [Overprint symbol 13] 977 14 5070 MzPzctWhite-weathering chert or silicified limestone (wc, KL002) [Overprint symbol 14] 33 920 Tsg Sagavanirktok Formation (Ts, UT003; TKs, ML002) [Overprint symbol 14] 848 13 2040 Ksb Seabee Formation (Ks, UT003; Kh, DP004; ML002) [Overprint symbol 13] 937 14 4130 Trcgs Conglomerate and shale, Middle Triassic (Trc, NB005) [Overprint symbol 14] 573 14 6939 Dkms Karheen Formation and related rocks, mudstone and siltstone, turbidites (Ds, Dvs, CR003; Da, Dsg, CR006; Dksh, Dkms, DE003; Da, Dsg, DE005; Dkkt, Dkkm, CR010) 270 15 6760 SOgu Medium-grained biotite syenite and granite (SOdi, SOsy, SOgr, Sld, CR010) 520 6692 SOdcg Descon Formation conglomerate (SOdcg, CR005; Odsg, CR006; DE005; SOdcb, CR007; SOdc, CR010) 423 14 6710 SOdr Descon Formation - Dacitic to rhyolitic volcanic rocks (SOdr, CR010; SOf, CR005; SOdsv, DE003; SOdr, pOwr, DE004; Odv, DE005) 423 16 6711 SOdv Descon Formation, andesite and felsite (Odv, CR006; DE005; SOda, CR010) 520 13 6693 SOds Descon Formation fine-grained sedimentary rocks [see also NSA 6820] (SOda, DE003; DE004) 790 13 6820 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) 423 44 6712 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) 616 14 7800 OCmi Metaigneous and minor metasedimentary rocks (Or, Ofd, DE003) 372 1641 TKmd Mafic dikes (TMzm {northern half of quadrangle}, EA002; part TKd, LH002; TKsa, MD002; TKd, ID002; TKm, MG002; TKda, TKdm, RM004) 800 14 2080 Kto Torok Formation, Aptian to Cenomanian (Kto, KL002; UT003) [Overprint symbol 14] 800 16 2081 Ktfm Torok and Fortress Mountain Formations, undivided, Aptian to Cenomanian (Ktfm, HW003) [Overprint symbol 16] 848 13 2070 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] 797 14 1995 Ktu Tuluvak Formation (Ktu, UT003) [Overprint symbol 14] 745 14 1930 Ksb Schrader Bluff Formation (Ksbl, UT003) [Overprint symbol 14] 915 16 1515 TKpc Prince Creek Formation, shelf deposits (TKpc, UT003) [Overprint symbol 16] 33 14 921 Tsn Sagavanirktok Formation, Nuwok Member [Overprint symbol 14] 33 15 922 Tsfb Sagavanirktok Formation, Franklin Bluffs Member [Overprint symbol 14] 33 16 923 Tswh Sagavanirktok Formation, White Hills Member [Overprint symbol 14] 33 13 924 Tss Sagavanirktok Formation, Sagwon Member [Overprint symbol 14] 979 13 2184 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] 94 14 1234 Twh Wrangell Lavas, shallow plutons, chiefly dacite, diorite, and quartz diorite (Th, MC006) [Overprint symbol 14] 420 16 1055 Twp Wrangell Lava, hypabyssal and plutonic rocks (Tp, NB002; NB007; NB108; Tdd, Tdqd, MC003; Tp, MC002) [Overprint symbol 16] 704 7086095 PAsb Saginaw Bay Formation, unit to be abandoned (CDs, PE003; PA003) [Overprint symbol 708] 836 7086933 Dl Black Cap and Wadleigh Limestone (Dw, Dkl, CR010) [Overprint 708] 136 15 8721 Cmgo Metamorphic rocks of eastern Prince of Wales Island (Cmpw, CR010) [Overprint symbol 15] 772 14 3251 JTrth Talkeetna Formation, Horn Mountain Tuff member (Jtkh, IL007; KN005) [Overprint symbol 14] 772 15 3252 JTrtp Talkeetna Formation, Portage Creek Agglomerate member (Jtkp, IL007; KN005) [Overprint symbol 15] 772 16 3253 JTrtm Talkeetna Formation, Marsh Creek Breccia member (Jtkm, IL007; KN005) [Overprint symbol 16] 973 14 4720 JPc Christian River and Porcupine River sequences (JPc, CO002) 81 16 581 Tsti Siltstone of Trinity Islands (TI004; Tts, KD006) 745 13 2127 Kko Kongakut Formation, pebble shale and siltstone (Kk, Kk?, AC002; DP002; DP004) [Overprint symbol 13] 21 13 284 QTts Tilted sedimentary rocks at South Bight, Amchitka Island (QTs, RI005) 749 15 1525 TKcm Marine and nonmarine conglomerate to shale (TKs, DP002; TKsc, DP004) 940 13 4025 Trkc Karen Creek Sandstone (Trk, DP002) 944 14 4160 TrPsg Sadlerochit Group, undivided (TrPs, TrPu, DP002; TrPs, DP004; ML002) 944 15 4161 Tri Sadlerochit Group, Ivishak Formation (Tri, DP002) 841 13 5715 Pef Sadlerochit Group, Echooka Formation, undivided [NOTE: may be equivalent to NSA 5710 and 5735] (Pe, DP002) 704 14 6328 Mlk Lisburne Group and Kayak Shale, undivided (PaMlk, ML002) 940 14 3810 JTru Kingak Shale, Shublik Formation, and Karen Creek Sandstone, undivided (JTru, ML002) 797 15 2835 KJsh Pebble shale and Kingak Shale, undivided (KJs, DP004; ML002) 749 16 1518 TKcf Canning Formation, basinal turbidite deposits (TKc, BA002; DP004; ML002) [Overprint symbol 16] 803 16 2128 Kps Pebble Shale unit (Kp, DP004; ML002) 973 13 4000 Trsu Sedimentary rocks, undivided (Tru, DP004; ML002) 18 13 114 Qlv Levee deposits (KN008) 21 14 170 Qdl Deltaic deposits, including outwash and alluvial deposits (Qdl, KN008) 85 16 561 Tkw Kenai Group and West Foreland Formation, undivided (bT, bT?, KN006) 40 14 961 Tghs Ghost Rocks Formation, sandstone-rich unit, undivided (Tgs, KD006; KG006; TI005) 40 15 962 Tgha Ghost Rocks Formation, argillite-rich unit, undivided (Tga, KD006; KG006; TI005) 40 960 Tghc Ghost Rocks Formation, coherent (Tgc, KD006; KG006) 416 1150 Tgva Ghost Rocks Formation, andesitic volcanic and hypabyssal rocks (Tgva, KD006) 416 14 1151 Tgvb Ghost Rocks Formation, basalitic volcanic and hypabyssal rocks (Tgvb, KD006) 315 3481276 Togb Gabbroic rocks (Tgn, MF002; gbc, gbh, gbm, gbp, Kbgb, MF003) 315 13 1318 Tgn Gabbronorite and norite (Tgn, SI004) 963 5203 MzZyu Undivided schist and gneiss (in SE Alaska) (PE, SD) 470 15 4480 mTrsb Stuhini Group, pillow basalt, volcanic sandstone and mudstone (Trsb, AL003) 470 16 4481 mTrss Stuhini Group, tuffaceous sandstone, volcanic wacke, tuff, mudstone, and minor conglomerate (Trss, AL003) 602 15 4550 Trkb Kelp Bay Group, undivided (JTrkb, SI006) 573 15 6961 Dcg Conglomerate of the Kennel Creek Limestone (DSkc, JU010; SI003; SI006) 699 16 5675 PzZp Phyllite (TKp, PE003) 742 16 5380 ePzc Lower Paleozoic black chert. Derived from 1969-1970 Condan and Hoare field notes lPzc, TA019) 797 2831 KJagi Marine volcaniclastic sandstone, conglomerate, and argillite apparently cut by dikes or shallow intrusions (KJsvi, TA015) 633 3420 Jla Lamprohyre and maifc dikes associated with Iliamna Volcano, thought to be Jurassic (la, b, IL007; la, KN005; LC007) 12 44 306 Hvd Domes associated with Holocene volcanic centers (Qgd, AD004; Qld, AD009) 37 15 750 Tgc Gunners Cove Formation, tuffaceous conglomerate and sandstone, crystal-vitric basaltic tuff, thin basalt flows, and basaltic dikes (Tgc, RI004) 37 15 751 Tbp Banjo Point Formation, sandstone, conglomerate, tuffaceous shale, and lapilli tuff of basaltic composition (Tbp, RI005) 644 1681 TJgd Gabbro and diorite, Tertiary to Jurassic age (TJgd HC003; RM005) 644 1682 TJm Mafic intrusive rocks, Nyack terrane (TJd, HC003; RM005) 915 16 1552 TMzf Basement rocks - fine-grained sedimentary rocks. (TMzf, AT002) [Overprint symbol 15] 365 44 1094 Tkv Krugoli Formation, lava. (TMzkb, AT004) [Overprint symbol 44] 461 44 1096 Tbv Basement rocks, including basaltic, spilitic, and keratophyric lava and tuff. Pillow lava very common, western Aleutian Islands (TMzv, AT002; TMzl,TMzt, AT004) 772 44 3460 Jsb Igneous complex of Siniktanneyak Mountain, basalt at highest stratigraphic level. Includes pillow breccia, part of ophiolite. (Jsb, HW003; HW004) 129 13 1631 TJb Basalt and andesite, Whitefish Lake volcanic field (TJwl, RM003; TJb, RM005) 979 7082186 Kofc Coquina limestone of the Okpikruak Formation (c, HW003) 934 14 7516 Ocs Clastic rocks (Ocs, TA008) 841 44 5990 PDcs Black phyllite, possibly metamorphosed Cannery Fm. (MDph, SK005) 940 15 4012 Trlt Fossiliferous limestone from the northeast Taylor Mountains quadrangle (Trlt, TA008) 301 7088015 Cls Middle or lower Cambrian thin-bedded platy limestone associated with coarse-grained silciclastic sandstone and granule conglomerate, possible shale (Cls, TA008; Sleetmute A-2) 616 7088420 Zs Orange weathering sandstone (Zs, TA008; Sleetmute A-2) 912 4022 Trku Ursus Member, Kamishak Formation (Trku, IL002) 905 4023 Trkm Middle Member, Kamishak Formation (Trkm, IL002) 912 4024 Trkb Bruin Limestone Member, Kamishak Formation (Trkb, IL002) 902 7360 DSm Orange weathering chloritic marble Brooks Range schist belt (see also 6950, 6951) (DSom; Pzcm, AR002; DSso; DSso?; Pzmsm, SP002; DOtm, BM002) 836 6951 DSol Dark gray to orange weathering limestone (see also 7360) (Dl; Dl?, SP002) 506 14 5820 PMcv Cannery Formation volcanic rocks (PMcv, JU004; SD004; SI005) 325 44 5134 JMvr Rhyolite and dacite of Tozitna terrane (JMvr, CS002) 133 14 8641 Zq Quartzite, grit, and argillite (PzpCs, MD002) Is this Wickersham? 12950 Hornfels and migmatite 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 10000 Completely unknown