Á¥STATEEC PROVINCECROCK_GROUPC BEDROCK_UNC!NAME_DESCRC; CT Grenville Belt Metamorphic Rocks, other Cc Cheshire Quartzite CT Grenville Belt Metamorphic Rocks, other Cd Dalton Formation CT Grenville Shelf Sequence Metamorphic Rocks, other Cd Dalton Formation CT Eugeosyncline Sequence Pelitic Rocks Ce Everett Schist CT Eugeosyncline Sequence Pelitic Rocks Ch Hoosac Schist CT Grenville Belt Pelitic Rocks Ch Hoosac Schist CT Eugeosyncline Sequence Pelitic Rocks Cm Manhattan Schist CT Grenville Shelf Sequence Pelitic Rocks Cm Manhattan Schist CT Eugeosyncline Sequence Mafic Rocks Cma Manhattan Schist CT Grenville Belt Sulfidic Schists Cmcl Manhattan Schist, Canaan Mtn. Schist CT Eugeosyncline Sequence Sulfidic Schists Cmcu Manhattan Schist, Canaan Mtn. Schist CT Eugeosyncline Sequence Sulfidic Schists Cmcub Manhattan Schist, Canaan Mtn. Schist CT Grenville Shelf Sequence Carbonate Rocks Csb Stockbridge Marble; unit b CT Grenville Shelf Sequence Carbonate Rocks Csc Stockbridge Marble; unit c CT Eugeosyncline Sequence Granite, other Cwb Waterbury Gneiss CT NH-ME Sequence Mafic Rocks D?d quartz diorite CT Bronson Hill Sequence Pelitic Rocks Dbl Littleton Formation CT NH-ME Sequence Pelitic Rocks Dblm Littleton Formation, Mount Pisgah Mbr. CT NH-ME Sequence Granite, other Dc Canterbury Gneiss CT Avalon Belt Granite, other Dc Canterbury Gneiss CT NH-ME Sequence Granite, other Dce Canterbury Gneiss, "Eastford gneiss phase" CT Bronson Hill Sequence Pelitic Rocks De Erving Formation CT NH-ME Sequence Granite, other Dgg granite gneiss CT NH-ME Sequence Mafic Rocks Dl Lebanon Gabbro (Lebanon Granite) CT Bronson Hill Sequence Granite, other Dm Maromas Granite Gniess CT NH-ME Sequence Mafic Rocks Dn hornblende norite CT Eugeosyncline Sequence Granite, other Dng Nonewaug Granite CT NH-ME Sequence Pelitic Rocks DSs Scotland Schist CT Avalon Belt Pelitic Rocks DSs Oakdale Formation, Scotland Schist Mbr. CT NH-ME Sequence Metamorphic Rocks, other DSsq Oakdale Formation, Scotland Schist Mbr. CT Eugeosyncline Sequence Pelitic Rocks Dst Hartland Belt; The Straits Schist CT Eugeosyncline Sequence Pelitic Rocks DSw Wepawaug Schist CT Bronson Hill Sequence Basalt Jb Buttress Dolerite CT Mesozoic Basin Basalt Jb Buttress Dolerite CT Eugeosyncline Sequence Basalt Jb Buttress Dolerite CT Mesozoic Basin Mafic Rocks Jb? Buttress Dolerite CT Mesozoic Basin Mesozoic Basin Sed. Jeb East Berlin Formation CT Mesozoic Basin Mesozoic Basin Sed. Jeb East Berlin Formation CT Mesozoic Basin Basalt Jha Hampden Basalt CT Eugeosyncline Sequence Basalt Jha Hampden Basalt CT Mesozoic Basin Basalt Jho Holyoke Basalt CT Mesozoic Basin Mesozoic Basin Sed. Jp Portland Arkose CT Mesozoic Basin Mesozoic Basin Sed. Jp? Portland Arkose CT Mesozoic Basin Mesozoic Basin Sed. Jp+Trnh (See Jp and Trnh descriptions) CT Mesozoic Basin Mesozoic Basin Sed. Jsm Shuttle Meadow Formation CT Mesozoic Basin Basalt Jta Talcott Basalt CT Mesozoic Basin Basalt Jwr West Rock Dolerite CT Mesozoic Basin Mafic Rocks Jwr West Rock Dolerite CT Eugeosyncline Sequence Mafic Rocks Jwr West Rock Dolerite CT Mesozoic Basin Mafic Rocks Jwr? West Rock Dolerite CT Eugeosyncline Sequence Mafic Rocks Oa+Oma Allingtown metavolcanics and Maltby Lakes metavolcanics CT Eugeosyncline Sequence Mafic Rocks Ob Brookfield Gneiss CT NH-ME Sequence Sulfidic Schists Obr Brimfield Schist CT NH-ME Sequence Sulfidic Schists Obr? Brimfield Schist CT NH-ME Sequence Mafic Rocks Obrg Brimfield Schist CT Eugeosyncline Sequence Metamorphic Rocks, other Obs Bristol Gneiss CT Eugeosyncline Sequence Pelitic Rocks Oc Collinsville Formation CT Eugeosyncline Sequence Pelitic Rocks Oc+Ot (See Oc and Ot descriptions) CT Eugeosyncline Sequence Mafic Rocks OC-r Rowe Schist CT Eugeosyncline Sequence Mafic Rocks OC-ra Rowe Schist; amphibolite mbr. CT Eugeosyncline Sequence Mafic Rocks OC-r+OC-ra (See OC-r and OC-ra descriptions) CT Grenville Shelf Sequence Carbonate Rocks OC-s Stockbridge Marble CT Eugeosyncline Sequence Mafic Rocks Ocg Collinsville Formation CT Bronson Hill Sequence Sulfidic Schists Och Collins Hill Formation CT Bronson Hill Sequence Sulfidic Schists Och+Om (See Och and Om descriptions) CT Bronson Hill Sequence Mafic Rocks Ochv Collins Hill Formation CT Eugeosyncline Sequence Pelitic Rocks Ocm Cobble Mtn. Formation CT Eugeosyncline Sequence Pelitic Rocks Ocs Collinsville Fm., Sweetheart Mt. Mbr. CT Grenville Belt Granite, other Og granitic gneiss CT Eugeosyncline Sequence Granite, other Og granitic gneiss CT Eugeosyncline Sequence Granite, other Og? granitic gneiss CT Grenville Belt Grenville Granites Og+Yg (See Og and Yg descriptions) CT Eugeosyncline Sequence Pelitic Rocks Ogh Golden Hill Schist CT Eugeosyncline Sequence Pelitic Rocks Ogh? Golden Hill Schist CT Bronson Hill Sequence Granite, other Ogl Glastonbury Gneiss CT Eugeosyncline Sequence Mafic Rocks Oh Harrison Gneiss CT Eugeosyncline Sequence Mafic Rocks Oh? Harrison Gneiss CT Eugeosyncline Sequence Mafic Rocks Ohb Harrison Gneiss, Beardsley Mbr. CT Eugeosyncline Sequence Calcgranofels Ohc Hawley Formation CT Eugeosyncline Sequence Mafic Rocks Ohp Harrison Gneiss, Pumpkin Ground Mbr. CT Eugeosyncline Sequence Mafic Rocks Ohp+Ob (See Ohp and Ob descriptions) CT Eugeosyncline Sequence Mafic Rocks Ohp+Oh (See Ohp and Oh descriptions) CT Eugeosyncline Sequence Mafic Rocks Ol Litchfield Norite CT Bronson Hill Sequence Mafic Rocks Om Middletown Formation CT NH-ME Sequence Mafic Rocks Om Middletown Formation CT Eugeosyncline Sequence Mafic Rocks Omal Maltby Lakes Metavolcanics CT Eugeosyncline Sequence Mafic Rocks Omau Maltby Lakes Metavolcanics CT Bronson Hill Sequence Mafic Rocks Omm Middletown Formation CT Bronson Hill Sequence Mafic Rocks Omo Monson Gneiss CT Bronson Hill Sequence Mafic Rocks Omo+Oml+Och (See Omo, Oml, and Och descriptions) CT Bronson Hill Sequence Pelitic Rocks Omu Middletown Formation CT Bronson Hill Sequence Pelitic Rocks Omu Middletown Formation CT Eugeosyncline Sequence Pelitic Rocks Oo Oronoque Schist CT Avalon Belt Mafic Rocks Op Preston Gabbro CT Avalon Belt Mafic Rocks Op+Oq (See Op and Oq) CT Avalon Belt Mafic Rocks Opd Preston Gabbro CT Avalon Belt Mafic Rocks Oq Quinebaug Formation CT NH-ME Sequence Mafic Rocks Oq Quinebaug Formation CT Avalon Belt Granite, other Oqf Quinebaug Formation CT Eugeosyncline Sequence Pelitic Rocks Or Ratlum Mtn. Schist CT Eugeosyncline Sequence Pelitic Rocks Or+OC-r+Ora (See Or, OC-r, and Ora) CT Eugeosyncline Sequence Mafic Rocks Ora Ratlum Mtc. Schist CT Grenville Shelf Sequence Carbonate Rocks Ose Stockbridge Marble CT Eugeosyncline Sequence Pelitic Rocks Ot Taine Mtn. Formation CT Eugeosyncline Sequence Pelitic Rocks Ot+Otb+Oc+DSts (See Ot, Otb, Oc, and DSts) CT Avalon Belt Pelitic Rocks Ota Tatnic Hill Formation CT Avalon Belt Metamorphic Rocks, other Ota+SOh (See Ota and SOh) CT Eugeosyncline Sequence Granite, other Otf+Og (See Otf and Og) CT Eugeosyncline Sequence Sulfidic Schists Otfc Trap Falls Formation, Carringtons Pond Mbr. CT Eugeosyncline Sequence Pelitic Rocks Otfg Trap Falls Formation CT Eugeosyncline Sequence Pelitic Rocks Otfg+Otfs+Otf (See Otfg, Otfs, and Otf) CT Eugeosyncline Sequence Pelitic Rocks Otfs Trap Falls Formation, Shelton Mbr. CT Eugeosyncline Sequence Pelitic Rocks Ots Taine Mtn. Formation, Scranton Mtn. Mbr. CT Eugeosyncline Sequence Pelitic Rocks Otw Taine Mtn. Formation, Wildcat Mbr. CT Eugeosyncline Sequence Pelitic Rocks Otwv Whigville Mbr. CT Grenville Shelf Sequence Pelitic Rocks Ow Walloomsac Schist CT Grenville Shelf Sequence Pelitic Rocks Ow Walloomsac Schist CT Grenville Shelf Sequence Carbonate Rocks Owm Walloomsac Schist CT Avalon Belt Peraluminous Granite Pn Narragansett Pier Granite CT Eugeosyncline Sequence Granite, other Pp porphyry CT Eugeosyncline Sequence Granite, other Ppa Pinewood Adamallite CT Avalon Belt Peraluminous Granite Pw Westerly Granite CT Avalon Belt Mafic Rocks Pzmy mylonite along Paleozoic faults CT Avalon Belt Unconsolidated Sed. Qal Unconsolidated sediments CT Bronson Hill Sequence Metamorphic Rocks, other Sbc Clough Quartzite CT Bronson Hill Sequence Metamorphic Rocks, other Sbf Fitch Formation CT NH-ME Sequence Sulfidic Schists SObu Bigelow Brook Fm., upper member CT NH-ME Sequence Calcgranofels SOh Hebron Gneiss (Hebron Formation) CT Avalon Belt Metamorphic Rocks, other SOh Hebron Gneiss (Hebron Formation) CT Avalon Belt Metamorphic Rocks, other SOh Hebron Gneiss (Hebron Formation) CT NH-ME Sequence Calcgranofels SOh+Ota+Otaf+Otay+SObu (See SOh, Ota, Otaf, Otay, SObu) CT NH-ME Sequence Granite, other SOsp Southbridge Formation CT Eugeosyncline Sequence Metamorphic Rocks, other Stb Straits Schist CT Mesozoic Basin Mesozoic Basin Sed. Trnh New Haven Arkose CT Mesozoic Basin Mesozoic Basin Sed. Trnh New Haven Arkose CT Mesozoic Basin Mafic Rocks Trnh+Jb (See Trnh and Jb) CT Mesozoic Basin Mesozoic Basin Sed. Trnh+Jsm+Jta (See Trnh, Jsm, and Jta) CT Grenville Belt Ultramafic Rocks u Ultramafic rock CT Eugeosyncline Sequence Ultramafic Rocks u Ultramafic rock CT Grenville Belt Grenville Granites Yg granitic gneiss, gneiss, and schist CT Grenville Belt Grenville Granites Yga augen gneiss CT Grenville Belt Mafic Rocks Ygh hornblende gneiss and amphibolite CT Grenville Belt Metamorphic Rocks, other Ygn gneiss CT Grenville Belt Grenville Granites Ygr granitic gneiss CT Grenville Belt Grenville Granites Ygr+Yga (See Ygr and Yga) CT Grenville Belt Sulfidic Schists Ygs mica schist and gneiss porphyroclasts CT Avalon Belt Avalon Granite Zl Sterling Plutonic Suite (Group), LightHouse Gneiss CT Avalon Belt Metamorphic Rocks, other Zp Plainfield Formation CT Avalon Belt Avalon Granite Zp+Zsc+Pn (See Zp, Zsc, and Pn) CT Avalon Belt Avalon Granite Zp+Zsph+Pn (See Zp, Zsph, and Pn) CT Avalon Belt Granite, other Zp+Zsph+Pn? (See Zp, Zsph, and Pn) CT Avalon Belt Metamorphic Rocks, other Zpq Quartzite unit in Plainfield Formation CT Avalon Belt Avalon Granite Zsc+Pn+Zw (See Zsc, Pn and Zw) CT Avalon Belt Granite, other Zsc+Pn+Zw (See Zsc, Pn and Zw) CT Avalon Belt Avalon Granite Zsh Hope Valley Alaskite Gneiss CT Avalon Belt Avalon Granite Zsh+Pnm (See Zsh and Pnm) CT Avalon Belt Avalon Granite Zsph Sterling Plutonic Suite, Potter Hill Granite CT Avalon Belt Avalon Granite Zsph+Pn Sterling Plutonic Suite, Potter Hill Granite CT Avalon Belt Granite, other Zsph+Pn Sterling Plutonic Suite, Potter Hill Granite CT Avalon Belt Avalon Granite Zss Scituate Granite Gneiss CT Avalon Belt Mafic Rocks Zw Waterford Group CT Avalon Belt Avalon Granite Zw+Zb Waterford Group CT Avalon Belt Avalon Granite Zwm Waterford Group: Mamacoke Formation CT Avalon Belt Metamorphic Rocks, other Zwn Waterford Group, New London Gneiss CT Avalon Belt Avalon Granite Zwnj Waterford Group, New London Gneiss CT Avalon Belt Avalon Granite Zwr Waterford Group, Rope Ferry Gneiss CT Avalon Belt Avalon Granite Zwr+Zwm (See Zwr and Zwm) MA Avalon Belt Pelitic Rocks C-bw Braintree Argillite and Weymouth Fmargillite MA Grenville Belt Metamorphic Rocks, other C-c Cheshire quartzite MA Grenville Belt Metamorphic Rocks, other C-c+C-Zd (See C-c and C-Zd) MA Avalon Belt Pelitic Rocks C-g Green Lodge Fm of Rhodes and Graves(1931) MA Avalon Belt Pelitic Rocks C-h Hoppin Fm MA Eugeosyncline Sequence Pelitic Rocks C-hh Hatch Hill Formation MA Grenville Shelf Sequence Metamorphic Rocks, other C-sa Stockbridge Fm MA Grenville Shelf Sequence Carbonate Rocks C-sb Stockbridge Fm MA Grenville Shelf Sequence Carbonate Rocks C-sc calcitic dolomite marble MA Eugeosyncline Sequence Pelitic Rocks C-sc calcitic dolomite marble MA Eugeosyncline Sequence Pelitic Rocks C-Zcm Canaan Mountain Fm MA Grenville Belt Pelitic Rocks C-Zd Dalton Fm MA Grenville Belt Metamorphic Rocks, other C-Zd Dalton Fm MA Grenville Belt Metamorphic Rocks, other C-Zdbs Dalton Fm MA Grenville Belt Metamorphic Rocks, other C-Zdbs+C-Zd (See C-Zdbs and C-Zd) MA Grenville Belt Metamorphic Rocks, other C-Zdc Dalton Fm MA Grenville Belt Metamorphic Rocks, other C-Zdq Dalton Fm MA Grenville Belt Metamorphic Rocks, other C-Zds Dalton Fm MA Eugeosyncline Sequence Pelitic Rocks C-Zev Everett Fm MA Eugeosyncline Sequence Pelitic Rocks C-Zev Everett Fm MA Grenville Shelf Sequence Pelitic Rocks C-Zev Everett Fm MA Grenville Shelf Sequence Pelitic Rocks C-Zev+Ow Part of Everett and Walloomsac formations MA Eugeosyncline Sequence Pelitic Rocks C-Zevc Everett Fm MA Eugeosyncline Sequence Pelitic Rocks C-Zg Greylock Schist MA Eugeosyncline Sequence Pelitic Rocks C-Zg Greylock Schist MA Eugeosyncline Sequence Pelitic Rocks C-Zga Greylock Schist MA Grenville Shelf Sequence Pelitic Rocks C-Zga Greylock Schist MA Eugeosyncline Sequence Pelitic Rocks C-Zh Hoosac Fm; undifferentiated MA Grenville Belt Pelitic Rocks C-Zh Hoosac Fm; undifferentiated MA Eugeosyncline Sequence Pelitic Rocks C-Zh Hoosac Fm; undifferentiated MA Grenville Belt Pelitic Rocks C-Zhd Hoosac Fm MA Grenville Belt Pelitic Rocks C-Zhdc Hoosac Fm MA Eugeosyncline Sequence Pelitic Rocks C-Zhg Hoosac Fm MA Grenville Belt Pelitic Rocks C-Zhg Hoosac Fm MA Eugeosyncline Sequence Pelitic Rocks C-Zhga Hoosac Fm MA Grenville Belt Pelitic Rocks C-Zhga Hoosac Fm MA Grenville Belt Metamorphic Rocks, other C-Zhga Hoosac Fm MA Grenville Belt Pelitic Rocks C-Zhgt lustrous greenish-gray schist MA Eugeosyncline Sequence Pelitic Rocks C-Zhr Hoosac Fm MA Eugeosyncline Sequence Pelitic Rocks C-Zn Nassau Fm MA Eugeosyncline Sequence Pelitic Rocks C-Zna Nassau Fm MA Eugeosyncline Sequence Pelitic Rocks C-Zngy Nassau Fm MA Eugeosyncline Sequence Pelitic Rocks C-Znp Nassau Fm MA Eugeosyncline Sequence Pelitic Rocks C-Znr Nassau Fm; Rensselaer Graywacke member MA Bronson Hill Sequence Ultramafic Rocks C-Znr Nassau Fm; Rensselaer Graywacke member MA Eugeosyncline Sequence Pelitic Rocks C-Znv Nassau Fm MA Eugeosyncline Sequence Mafic Rocks C-Znv Nassau Fm MA NH-ME Sequence Mafic Rocks Dbi Belchertown Complex MA Bronson Hill Sequence Mafic Rocks Dbmdg Belchertown Complex MA Bronson Hill Sequence Mafic Rocks Dbp Belchertown Complex MA Bronson Hill Sequence Mafic Rocks Dbt Belchertown Complex MA NH-ME Sequence Peraluminous Granite Dcgr Chelmsford granite MA NH-ME Sequence Granite, other Dchgr Coys Hill porphyritic granite gneiss MA NH-ME Sequence Mafic Rocks Dchh Coys Hill porphyritic granite gneiss MA Avalon Belt Granite, other Dcygr Cherry Hill Granite MA NH-ME Sequence Mafic Rocks Ddi Hardwick Tonalite MA Bronson Hill Sequence Mafic Rocks Ddi Hardwick Tonalite MA NH-ME Sequence Mafic Rocks Ddi Hardwick Tonalite MA NH-ME Sequence Mafic Rocks Ddi+Ddn Hardwick Tonalite MA NH-ME Sequence Mafic Rocks Ddn Hardwick Tonalite MA Bronson Hill Sequence Pelitic Rocks De Erving Fm MA Bronson Hill Sequence Mafic Rocks Dea Erving Fm MA Bronson Hill Sequence Pelitic Rocks Deg Erving Fm MA Bronson Hill Sequence Sulfidic Schists Dev Erving Fm MA NH-ME Sequence Granite, other Dfgd Fitchburg Complex MA NH-ME Sequence Granite, other Dfgds Fitchburg Complex MA NH-ME Sequence Granite, other Dfgr Fitchburg Complex MA NH-ME Sequence Granite, other Dfgrg Fitchburg Complex MA Waits River-Gile Mtn. Pelitic Rocks Dg Goshen Fm MA Waits River-Gile Mtn. Calcpelite Dgc Goshen Fm MA NH-ME Sequence Granite, other Dgd Granodiorite MA Waits River-Gile Mtn. Calcpelite Dgl Goshen Fm MA Waits River-Gile Mtn. Calcpelite Dgm Gile Mountain Fm MA Waits River-Gile Mtn. Calcpelite Dgm+Dgma Gile Mountain Fm MA Waits River-Gile Mtn. Mafic Rocks Dgma Gile Mountain Fm MA Waits River-Gile Mtn. Pelitic Rocks Dgq Goshen Fm MA Waits River-Gile Mtn. Metamorphic Rocks, other Dgq Goshen Fm MA NH-ME Sequence Granite, other Dgr Biotite-muscovite granite, slightly foliated MA Waits River-Gile Mtn. Calcgranofels Dgu Goshen Fm MA Waits River-Gile Mtn. Calcgranofels Dgu+Dga (See Dgu and Dga) MA NH-ME Sequence Sulfidic Schists Dhgr Hardwick Tonalite MA NH-ME Sequence Mafic Rocks Dht Hardwick Tonalite MA NH-ME Sequence Mafic Rocks Dht Hardwick Tonalite MA NH-ME Sequence Pelitic Rocks DI Littleton Fm MA Bronson Hill Sequence Pelitic Rocks Dl Littleton Fm MA NH-ME Sequence Pelitic Rocks Dl Littleton Fm MA NH-ME Sequence Pelitic Rocks Dl+Ops (See Dl and Ops) MA NH-ME Sequence Pelitic Rocks Dlf Littleton Fm MA NH-ME Sequence Metamorphic Rocks, other Dlf Littleton Fm MA NH-ME Sequence Calcgranofels Dlm Littleton Fm MA NH-ME Sequence Metamorphic Rocks, other Dlo Littleton Fm MA Eugeosyncline Sequence Granite, other Dmg Middlefield Granite MA Waits River-Gile Mtn. Granite, other Dpe Feldspar-quartz-muscovite pegmatite MA Eugeosyncline Sequence Granite, other Dpe Feldspar-quartz-muscovite pegmatite MA Bronson Hill Sequence Mafic Rocks Dpgb Prescott Complex MA Bronson Hill Sequence Granite, other Dpgg Prescott Complex; Cooleyville granitic gneiss MA Avalon Belt Granite, other Dpgr Peabody Granite MA Waits River-Gile Mtn. Pelitic Rocks Dpv Putney volcanics; MA Avalon Belt Granite, other Drgr Granite of Rattlesnake Hill MA NH-ME Sequence Granite, other Drh Biotite-garnet-feldspar gneiss of Ragged Hill MA NH-ME Sequence Mafic Rocks DSdi Diorite and tonalite MA Avalon Belt Felsic Volcanics DSn Newbury Volcanic Complex MA Avalon Belt Mafic Rocks DSna Newbury Volcanic Complex MA Avalon Belt Mafic Rocks DSnl Newbury Volcanic Complex MA Avalon Belt Felsic Volcanics DSnr Newbury Volcanic Complex MA NH-ME Sequence Pelitic Rocks DSw Worcester Fm MA Waits River-Gile Mtn. Calcpelite Dw Wenham Monzonite MA Waits River-Gile Mtn. Mafic Rocks Dwa Waits River Fm MA Waits River-Gile Mtn. Granite, other Dwgd Williamsburg Granodiorite MA Bronson Hill Sequence Granite, other Dwgd Williamsburg Granodiorite MA Avalon Belt Granite, other Dwm Wenham Monzonite MA Avalon Belt Felsic Volcanics DZl Lynn Volcanic Complex MA NH-ME Sequence Mafic Rocks gb Hornblende-olivine gabbro MA Bronson Hill Sequence Metamorphic Rocks, other gf Belchertown Complex MA NH-ME Sequence Granite, other gr Granite, mostly non-foliated MA NH-ME Sequence Granite, other grg Biotite granitic gneiss MA Bronson Hill Sequence Granite, other grg Biotite granitic gneiss MA NH-ME Sequence Sulfidic Schists hg Hornblende plagioclase gneiss MA Avalon Belt Granite, other igd Granodiorite of the Indian head pluton MA NH-ME Sequence Basalt Jd Diabase dikes and sills MA Bronson Hill Sequence Basalt Jd Diabase dikes and sills MA Avalon Belt Basalt Jd Diabase dikes and sills MA Mesozoic Basin Basalt Jd Diabase dikes and sills MA Mesozoic Basin Basalt Jdb Deerfield Basalt MA Mesozoic Basin Mesozoic Basin Sed. Je East Berlin Fm MA Mesozoic Basin Basalt Jgb Granby Basaltic Tuff MA Mesozoic Basin Basalt Jhab Hampden Basalt MA Mesozoic Basin Basalt Jhb Holyoke Basalt MA Mesozoic Basin Mesozoic Basin Sed. Jmc Mount Toby Fm MA Mesozoic Basin Mesozoic Basin Sed. Jmg Mount Toby Fm MA Mesozoic Basin Mesozoic Basin Sed. Jn New Haven Arkose MA Mesozoic Basin Mesozoic Basin Sed. Jp Portland Formation MA Mesozoic Basin Mesozoic Basin Sed. Jpc Portland Formation (western part) MA Mesozoic Basin Mesozoic Basin Sed. Jpc Portland Formation (western part) MA Mesozoic Basin Mesozoic Basin Sed. Js Sugarloaf Fm MA NH-ME Sequence Metamorphic Rocks, other Jsi Silicified fault-breccia or strongly silified metamorphic r MA Mesozoic Basin Mesozoic Basin Sed. Jsm Shuttle Meadow Formation MA Mesozoic Basin Mesozoic Basin Sed. Jsmc Shuttle Meadow Formation MA Mesozoic Basin Mesozoic Basin Sed. Jt Turner Falls Sandstone MA Mesozoic Basin Mesozoic Basin Sed. Jtc Turner Falls Sandstone MA Avalon Belt Unconsolidated Sed. K Cretaceous sediments MA Avalon Belt Granite, other mgr Light-gray muscovite granite MA Bronson Hill Sequence Mafic Rocks Oa Ammonoosuc Volcanics MA Bronson Hill Sequence Ultramafic Rocks Oau Ammonoosuc Volcanics MA Eugeosyncline Sequence Pelitic Rocks Oca Cobble Mtn. Fm MA Eugeosyncline Sequence Pelitic Rocks Ocb Cobble Mtn. Fm MA Eugeosyncline Sequence Pelitic Rocks Ocbr Cobble Mtn. Fm MA Eugeosyncline Sequence Pelitic Rocks Occa Cobble Mtn. Fm MA Eugeosyncline Sequence Mafic Rocks Oco Collinsville Fm MA Eugeosyncline Sequence Mafic Rocks Ocoa1 Collinsville Fm MA Eugeosyncline Sequence Pelitic Rocks OCr Rowe Schist MA Eugeosyncline Sequence Mafic Rocks OCra Rowe Schist MA Eugeosyncline Sequence Sulfidic Schists OCrc Rowe Schist MA Eugeosyncline Sequence Mafic Rocks Ogd Diorite at Golf Ledges MA Bronson Hill Sequence Granite, other Ogl Glastonbury Gneiss MA Grenville Belt Granite, other Ogr muscovite-biotite granite and granodiorite MA Eugeosyncline Sequence Granite, other Ogr muscovite-biotite granite and granodiorite MA Eugeosyncline Sequence Mafic Rocks Oh Hawley Fm MA Eugeosyncline Sequence Sulfidic Schists Ohb Hawley Fm MA Eugeosyncline Sequence Mafic Rocks Ohg Hawley Fm MA Eugeosyncline Sequence Granite, other Ohpg Gneiss at Hallockville Pond MA Eugeosyncline Sequence Pelitic Rocks Om+C-Zd+O-cr (See Om, C-Zd, O-cr) MA Eugeosyncline Sequence Granite, other Om Moretown Fm MA Eugeosyncline Sequence Mafic Rocks Oma Moretown Fm MA Eugeosyncline Sequence Sulfidic Schists Omsc Moretown Fm MA Avalon Belt Mafic Rocks Ongb Nahant Gabbro and gabbro at Salem Neck MA NH-ME Sequence Mafic Rocks Opa Partridge Fm MA NH-ME Sequence Mafic Rocks Opa Partridge Fm MA Bronson Hill Sequence Metamorphic Rocks, other Opau Partridge Fm MA NH-ME Sequence Metamorphic Rocks, other Opau Partridge Fm MA NH-ME Sequence Metamorphic Rocks, other Opbg Partridge Fm MA Bronson Hill Sequence Granite, other Opc Pauchaug Gneiss MA Bronson Hill Sequence Metamorphic Rocks, other Opf Partridge Fm MA Bronson Hill Sequence Sulfidic Schists Ops Partridge Fm MA NH-ME Sequence Sulfidic Schists Ops Partridge Fm MA NH-ME Sequence Sulfidic Schists Ops Partridge Fm MA Bronson Hill Sequence Sulfidic Schists Ops+Sc (See Ops and Sc) MA NH-ME Sequence Sulfidic Schists Opsa Partridge Fm MA Bronson Hill Sequence Sulfidic Schists Opsa Partridge Fm MA NH-ME Sequence Pelitic Rocks Opsg Partridge Fm MA Bronson Hill Sequence Ultramafic Rocks Opu Partridge Fm MA NH-ME Sequence Ultramafic Rocks Opu Partridge Fm MA NH-ME Sequence Mafic Rocks Opv Partridge Fm MA NH-ME Sequence Mafic Rocks Opv Partridge Fm MA Grenville Shelf Sequence Carbonate Rocks Ose Stockbridge Fm MA Grenville Shelf Sequence Carbonate Rocks Ose Stockbridge Fm MA Grenville Shelf Sequence Carbonate Rocks Ose+Osg+C-sb+C-sa (See Ose, Osg, C-sb, C-sa) MA Grenville Shelf Sequence Carbonate Rocks Osg Stockbridge Fm MA Eugeosyncline Sequence Pelitic Rocks Otb Tectonic breccia MA Eugeosyncline Sequence Pelitic Rocks Otbl Tectonic breccia MA Grenville Belt Granite, other Otr White, magnetite-bearing alaskite and trondhjemite MA Grenville Shelf Sequence Pelitic Rocks Ow Walloomsac Fm MA Grenville Shelf Sequence Carbonate Rocks Owl Walloomsac Fm MA Grenville Shelf Sequence Carbonate Rocks Owm Walloomsac Fm MA Grenville Shelf Sequence Calcgranofels Owq Walloomsac Fm MA Avalon Belt Metamorphic Rocks, other OZf Fish Brook Gneiss MA Bronson Hill Sequence Granite, other OZfm Fourmile Gneiss MA Bronson Hill Sequence Metamorphic Rocks, other OZfmq Fourmile Gneiss MA Avalon Belt Mafic Rocks OZm Marlboro Fm MA NH-ME Sequence Granite, other OZma Massabesic Gneiss Complex MA Avalon Belt Mafic Rocks OZmg Marlboro Fm MA Bronson Hill Sequence Mafic Rocks OZmo Monson Gneiss MA Bronson Hill Sequence Granite, other OZmo Monson Gneiss MA Bronson Hill Sequence Mafic Rocks OZmoa Nashoba Fm MA Bronson Hill Sequence Ultramafic Rocks OZmou Monson Gneiss MA Avalon Belt Metamorphic Rocks, other OZn Nashoba Fm MA Avalon Belt Mafic Rocks OZnb Nashoba Fm MA Avalon Belt Metamorphic Rocks, other OZsh Shawsheen Gneiss MA Avalon Belt Mafic Rocks OZt Tatnic Hill Fm MA Avalon Belt Metamorphic Rocks, other OZtf Tatnic Hill Fm; Fly Pond Mbr MA NH-ME Sequence Pelitic Rocks OZty Tatnic Hill Fm; Yantic Mbr MA Grenville Belt Ultramafic Rocks OZu Serpentinized peridotite stocks MA NH-ME Sequence Pelitic Rocks Pcm Coal Mine Brook Fm MA Narragansett Basin Narragansett Basin Sed. Pd Dighton Conglomerate MA NH-ME Sequence Peraluminous Granite Pgr Biotite granite, with magnetite-bearing pegmatite MA NH-ME Sequence Pelitic Rocks Ph Harvard Conglomerate MA Narragansett Basin Narragansett Basin Sed. Pp Pondville Conglomerate MA Narragansett Basin Narragansett Basin Sed. Pr Rhode Island Fm MA Narragansett Basin Narragansett Basin Sed. Prc Rhode Island Fm MA Narragansett Basin Narragansett Basin Sed. Pw Wamsutta Fm MA Narragansett Basin Narragansett Basin Sed. Pwv Wamsutta Fm MA Narragansett Basin Narragansett Basin Sed. PZb Bellingham Conglomerate MA Avalon Belt Pelitic Rocks PzZc Cambridge Argillite MA Avalon Belt Pelitic Rocks PzZr Roxbury Conglomerate MA Avalon Belt Pelitic Rocks PzZrb Roxbury Conglomerate MA NH-ME Sequence Mafic Rocks qd Quartz diorite MA NH-ME Sequence Granite, other Sacgr Ayer Granite MA NH-ME Sequence Granite, other Sagr Ayer Granite MA Avalon Belt Granite, other Sagr Ayer Granite MA NH-ME Sequence Calcpelite Sb Berwick Fm MA NH-ME Sequence Calcgranofels Sb Berwick Fm MA NH-ME Sequence Sulfidic Schists Sbs Berwick Fm MA Bronson Hill Sequence Metamorphic Rocks, other Sc Clough Quartzite MA NH-ME Sequence Calcgranofels Se Eliot Fm MA Bronson Hill Sequence Calcgranofels Sf Fitch Fm MA NH-ME Sequence Sulfidic Schists Sfs Fitch Fm MA NH-ME Sequence Sulfidic Schists Sfss Fitch Fm MA Avalon Belt Granite, other Sgr Rusty-weathering biotite granite to granodiorite MA NH-ME Sequence Granite, other Sngr Newburyport Complex MA NH-ME Sequence Calcpelite So Oakdale Fm MA NH-ME Sequence Granite, other SOad Ayer Granite--Devens-Long Pond facies MA Avalon Belt Granite, other SOagr Andover Granite MA Avalon Belt Granite, other SObgr Blue Hill Granite MA Avalon Belt Sulfidic Schists SObo Bolyston Schist MA NH-ME Sequence Sulfidic Schists SObo Bolyston Schist MA Avalon Belt Granite, other SOcb Cape Ann Complex: Beverly Syenite MA Avalon Belt Granite, other SOcgr Cape Ann Complex MA Avalon Belt Granite, other SOcsm Cape Ann Complex: Squam Granite MA NH-ME Sequence Granite, other SOngd Newburyport Complex MA Avalon Belt Granite, other SOqgr Quincy Granite MA NH-ME Sequence Metamorphic Rocks, other SOvh Vaughn Hills Quartzite MA Avalon Belt Metamorphic Rocks, other SOvh Vaughn Hills Quartzite MA NH-ME Sequence Metamorphic Rocks, other Sp Paxton Fm MA NH-ME Sequence Calcgranofels Sp Paxton Fm MA NH-ME Sequence Metamorphic Rocks, other Sp Paxton Fm MA NH-ME Sequence Metamorphic Rocks, other Sp Paxton Fm MA NH-ME Sequence Metamorphic Rocks, other Sp Paxton Fm MA NH-ME Sequence Calcpelite Sp Paxton Fm MA Bronson Hill Sequence Mafic Rocks Spa Paxton Fm MA NH-ME Sequence Mafic Rocks Spa Paxton Fm MA NH-ME Sequence Sulfidic Schists Spqr Paxton Fm MA NH-ME Sequence Sulfidic Schists Spqr Paxton Fm MA NH-ME Sequence Sulfidic Schists Spsq Paxton Fm MA NH-ME Sequence Sulfidic Schists Spss Paxton Fm MA Avalon Belt Mafic Rocks Ssaqd Straw Hollow Diorite and Assabet Quartz Diorite MA Avalon Belt Mafic Rocks Ssqd Sharpners Pond Diorite MA NH-ME Sequence Metamorphic Rocks, other St Tower Hill Quartzite MA Avalon Belt Metamorphic Rocks, other St Tower Hill Quartzite MA NH-ME Sequence Pelitic Rocks Sts Tower Hill Quartzite MA Avalon Belt Sulfidic Schists SZtb Tadmuck Brook Schist MA Mesozoic Basin Mesozoic Basin Sed. TRe Red arkosic conglomerate, sandstone, and siltstone MA Mesozoic Basin Mesozoic Basin Sed. Trn+Trs New Haven Arkose MA Eugeosyncline Sequence Ultramafic Rocks u Serpentinite and/or talc rock MA Avalon Belt Ultramafic Rocks u Serpentinite and/or talc rock MA Grenville Belt Mafic Rocks Yag hornblende-biotite-plagioclase gneiss and amphibolite MA Grenville Belt Mafic Rocks Yb biotite-plagioclase-quartz gneiss MA Grenville Belt Calcgranofels Ycs Calc-silicate granofels and gneiss MA Grenville Belt Grenville Granites Yfg felsic biotite-microline-plagioclase-quartz gneiss MA Grenville Belt Grenville Granites Ygg Granitoid gneiss MA Grenville Belt Mafic Rocks Yhb Well-layered hornblende-biotite gneiss MA Grenville Belt Mafic Rocks Yl Lee Gneiss MA Grenville Belt Grenville Granites Ysg Stamford granite Gneiss MA Grenville Belt Grenville Granites Ysg+Yb+Ow+ C-c+C-Zd (See Ysg, Yb, Ow, c-c, C-Zd) MA Grenville Belt Grenville Granites Ytg Tryingham Gneiss MA Grenville Belt Sulfidic Schists Yw Washingotn Gneiss MA Grenville Belt Pelitic Rocks Yw+Yb (See Yw and Yb) MA Grenville Belt Sulfidic Schists Ywb Washington Gneiss MA Grenville Belt Metamorphic Rocks, other Ywb+Ygg+Yw (See Ywb, Ygg, and Yw) MA Grenville Belt Carbonate Rocks Ywcs Washington Gneiss MA Grenville Belt Mafic Rocks Ywhg Washington Gneiss MA Avalon Belt Avalon Granite Zagr Alaskite--mafic-poor gneissic granite MA Avalon Belt Mafic Rocks Zb Blackstone Group MA Grenville Belt Mafic Rocks Zd Biotite-hornblende mafic dikes MA Avalon Belt Avalon Granite Zdgr Dedham Granite MA Bronson Hill Sequence Granite, other Zdh Dry Hill Gneiss MA Avalon Belt Avalon Granite Zdh+Zpmg+Zpd (See Zdh, Zpmg, Zpd) MA Bronson Hill Sequence Pelitic Rocks Zdhs Dry Hill Gneiss MA Avalon Belt Mafic Rocks Zdi Diorite--hornblende diorite MA Avalon Belt Mafic Rocks Zdigb Diorite and gabbro MA Avalon Belt Avalon Granite Zdngr Dedham Granite MA Bronson Hill Sequence Pelitic Rocks Zdpq Dry Hill Gneiss; Pelham Quartzite Mbr MA Avalon Belt Avalon Granite Zegr Esmond Granite MA Avalon Belt Avalon Granite Zfgr Granite of the Fall River pluton MA Avalon Belt Mafic Rocks Zgb Gabbro MA Avalon Belt Avalon Granite Zgg Granite, gneiss, and schist MA Avalon Belt Unconsolidated Sed. Zgg Granite, gneiss, and schist MA Avalon Belt Avalon Granite Zgmgd Grant Mills Granodiorite MA Avalon Belt Pelitic Rocks Zgn Biotite gneiss near New Bedford feldspathic gneiss MA Avalon Belt Avalon Granite Zgr Biotite granite MA Avalon Belt Pelitic Rocks Zgs Gneiss and schist near New Bedford hornblende MA Avalon Belt Avalon Granite Zhg Hope Valley Alaskite Gneiss MA Avalon Belt Felsic Volcanics Zm Mattapan Volcanic Complex MA Avalon Belt Avalon Granite Zmgd Milford Granite MA Avalon Belt Avalon Granite Zmgr Milford Granite MA Bronson Hill Sequence Pelitic Rocks Zmm Mount Mineral Fm MA Bronson Hill Sequence Pelitic Rocks Zmmu Mount Mineral Fm MA Avalon Belt Metamorphic Rocks, other Zp Plainfield Fm MA Avalon Belt Avalon Granite Zpg Ponaganset Gneiss MA Avalon Belt Avalon Granite Zpgr Porphyritic granite MA Bronson Hill Sequence Basalt Zpm Poplar Mountain Gneiss MA Avalon Belt Mafic Rocks Zrdi Diorite at Rowley MA Avalon Belt Avalon Granite Zsg Scituate Granite Gneiss MA Avalon Belt Avalon Granite Zssy Sharon Syenite MA Avalon Belt Avalon Granite Ztgd Topsfield Granodiorite MA Avalon Belt Mafic Rocks Zv Metamorphosed mafic to felsic flow MA Avalon Belt Felsic Volcanics Zvf Metamorphosed felsic metavolcanic rocks MA Avalon Belt Pelitic Rocks Zw Westboro Fm MA Avalon Belt Avalon Granite Zwgr Westwood Granite ME NH-ME Sequence Granite, other C1 Biotite granite ME NH-ME Sequence Peraluminous Granite C1(m) Muscovite-biotite granite ME NH-ME Sequence Peraluminous Granite C1b(m) Biotite-muscovite granite ME NH-ME Sequence Alkali Granite C4a Alkali-feldspar quartz syenite ME Bronson Hill Sequence Mafic Rocks C6 Quartz diorite ME NH-ME Sequence Alkali Granite C7 Syenite ME Bronson Hill Sequence Mafic Rocks C9 Gabbro, diorite, or ultramafic rocks ME NH-ME Sequence Mafic Rocks C9 Gabbro, diorite, or ultramafic rocks ME Bronson Hill Sequence Ultramafic Rocks C9c Ultramafic rocks ME Bronson Hill Sequence Pelitic Rocks C-clf Caucomgomoc Lake Fm ME Bronson Hill Sequence Basalt C-clg Caucomgomoc Lake Fm ME NH-ME Sequence Metamorphic Rocks, other CDs Unnamed comglomerates and sandstones ME Bronson Hill Sequence Pelitic Rocks C-gp Grand Pitch Fm ME Bronson Hill Sequence Pelitic Rocks C-h Hurricane Mtn Fm ME Bronson Hill Sequence Mafic Rocks C-ha Hurricane Mtn Fm ME Bronson Hill Sequence Mafic Rocks C-hmg Hurricane Mtn Fm ME Bronson Hill Sequence Mafic Rocks C-hpx Hurricane Mtn Fm ME Bronson Hill Sequence Metamorphic Rocks, other C-hq Hurricane Mtn Fm ME Bronson Hill Sequence Metamorphic Rocks, other C-hqw Hurricane Mtn Fm ME Bronson Hill Sequence Felsic Volcanics C-hr Hurricane Mtn Fm ME Bronson Hill Sequence Mafic Rocks C-j Jim Pond Fm ME Bronson Hill Sequence Pelitic Rocks C-jf Jim Pond Fm ME Bronson Hill Sequence Basalt C-jg Jim Pond Fm ME Bronson Hill Sequence Felsic Volcanics C-jk Jim Pond Fm ME Bronson Hill Sequence Pelitic Rocks C-jp Jim Pond Fm ME Bronson Hill Sequence Pelitic Rocks C-jq Jim Pond Fm ME Bronson Hill Sequence Pelitic Rocks C-ls Loon Stream Fm ME Bronson Hill Sequence Basalt C-uvm Unnamed mafic volcanic rocks ME NH-ME Sequence Granite, other D1 Granite ME Bronson Hill Sequence Granite, other D1 Granite ME Coastal Maine Granite, other D1 Granite ME NH-ME Sequence Granite, other D1(h) Granite ME Coastal Maine Granite, other D1(h) Granite ME NH-ME Sequence Granite, other D1(m) Muscovite-biotite granite ME Coastal Maine Granite, other D1(m) Muscovite-biotite granite ME Coastal Maine Granite, other D1(p) Granite; pyroxene plus hornblende inclusions ME NH-ME Sequence Granite, other D1(x) Porphyritic granite ME NH-ME Sequence Granite, other D1(y) Granite; granophyric inclusions ME NH-ME Sequence Granite, other D1(z) Granite; intrusive breccia ME Coastal Maine Granite, other D1(z) Granite; intrusive breccia ME NH-ME Sequence Granite, other D10(h) Foid-bearing biotite-hornblendesyenite ME NH-ME Sequence Granite, other D1-2 Biotite-hornblende granite ME NH-ME Sequence Granite, other D1-4c Granite to quartz monzonite ME NH-ME Sequence Mafic Rocks D1-6 Granite to quartz diorite ME NH-ME Sequence Granite, other D1a Alkali feldspar granite ME Coastal Maine Granite, other D1a Alkali feldspar granite ME NH-ME Sequence Granite, other D1b Granite ME Bronson Hill Sequence Granite, other D1b Granite ME Coastal Maine Granite, other D1b Granite ME Coastal Maine Granite, other D1b(h) Granite ME Bronson Hill Sequence Granite, other D1b(m) Muscovite-biotite granite ME NH-ME Sequence Granite, other D1b(m) Muscovite-biotite granite ME NH-ME Sequence Granite, other D2 Granodiorite ME NH-ME Sequence Granite, other D2(h) Hornblende-biotite granodiorite ME Bronson Hill Sequence Granite, other D2(h) Hornblende-biotite granodiorite ME NH-ME Sequence Granite, other D2(m) Muscovite-biotite granodiorite ME NH-ME Sequence Granite, other D2-4b Granodiorite to quartz diorite ME NH-ME Sequence Granite, other D2-5 Granodiorite to quartz monzodiorite ME NH-ME Sequence Mafic Rocks D2-D6 Granodiorite to quartz diorite ME NH-ME Sequence Granite, other D3 Tonalite ME NH-ME Sequence Granite, other D4c Quartz monzonite ME Coastal Maine Granite, other D4c Quartz monzonite ME NH-ME Sequence Granite, other D4c(h) Quartz monzonite; hornblende intrusions ME NH-ME Sequence Granite, other D4c(m) Muscovite-biotite quartz monzonite ME NH-ME Sequence Mafic Rocks D5-6 Quartz monzodiorite and pyroxene-biotitequartz diorite ME Bronson Hill Sequence Mafic Rocks D5-6 Quartz monzodiorite and pyroxene-biotitequartz diorite ME NH-ME Sequence Mafic Rocks D6(h) Quartz diorite; hornblende intrusions ME NH-ME Sequence Granite, other D7 Syenite ME Coastal Maine Granite, other D7 Syenite ME NH-ME Sequence Granite, other D7(p) Syenite; pyroxene plus hornblende intrusions ME NH-ME Sequence Mafic Rocks D7-8 Syenite to monzodiorite ME NH-ME Sequence Mafic Rocks D8 Monzodiorite ME Bronson Hill Sequence Mafic Rocks D9 Gabbro, diorite, and ultramafic rocks ME NH-ME Sequence Mafic Rocks D9 Gabbro, diorite, and ultramafic rocks ME Coastal Maine Mafic Rocks D9 Gabbro, diorite, and ultramafic rocks ME NH-ME Sequence Mafic Rocks D9a Diorite ME NH-ME Sequence Mafic Rocks D9b Gabbro ME NH-ME Sequence Ultramafic Rocks D9b-c Gabbro to ultramafic rocks ME Coastal Maine Mafic Rocks D9-D6 Gabbro to ultramafic rocks; quartz diorite ME NH-ME Sequence Mafic Rocks D9-D6 Gabbro to ultramafic rocks; quartz diorite ME Bronson Hill Sequence Mafic Rocks Db Beck Pond Limestone ME NH-ME Sequence Pelitic Rocks Dc Carrabassett Fm ME NH-ME Sequence Pelitic Rocks Dc? Carrabassett Fm ME NH-ME Sequence Pelitic Rocks Dch Chapman Sandstone ME NH-ME Sequence Pelitic Rocks Dcm Carrabassett Fm: Massive pelite member ME NH-ME Sequence Pelitic Rocks Dcq Carrabassett Fm: Quartzite member ME NH-ME Sequence Metamorphic Rocks, other Dcq Carrabassett Fm: Quartzite member ME NH-ME Sequence Pelitic Rocks Dcs Carrabassett Fm: Thinly layered member ME Bronson Hill Sequence Pelitic Rocks DC-us Unnamed sedimentary rocks ME Coastal Maine Basalt Deb Eastport Fm; basalt member ME NH-ME Sequence Mafic Rocks Deh Edmunds Hill Andesite ME Coastal Maine Mafic Rocks Dev Eastport Fm; mafic to felsic volcanic member ME NH-ME Sequence Calcpelite Dh Hildreths Formation ME NH-ME Sequence Metamorphic Rocks, other Dhb Hobbstown Formation ME Bronson Hill Sequence Metamorphic Rocks, other Dhb Hobbstown Formation ME NH-ME Sequence Mafic Rocks Dhd Hedgehog Fm ME NH-ME Sequence Felsic Volcanics Dhm Heald Mtn Rhyolite ME NH-ME Sequence Felsic Volcanics Dhmd Heald Mtn Rhyolite ME NH-ME Sequence Calcgranofels Dhr Hartin Fm. ME Bronson Hill Sequence Pelitic Rocks Dim Ironbound Mountain Formation ME NH-ME Sequence Pelitic Rocks Dl Littleton Formation ME NH-ME Sequence Metamorphic Rocks, other Dm Mapleton Fm. ME NH-ME Sequence Metamorphic Rocks, other Dmg Matagamon Sandstone ME NH-ME Sequence Calcgranofels DOb Bucksport Formation ME NH-ME Sequence Pelitic Rocks DOdg Digdeguash Fm. ME NH-ME Sequence Calcgranofels DOf Flume Ridge Fm. ME NH-ME Sequence Mafic Rocks DOs Spruce Top Greenstone ME Bronson Hill Sequence Pelitic Rocks DOup Unnamed pelite ME NH-ME Sequence Pelitic Rocks DOup Unnamed pelite ME NH-ME Sequence Mafic Rocks DOv Undifferentiated mafic to felsic volcanic rocks ME Coastal Maine Mafic Rocks DOv Undifferentiated mafic to felsic volcanic rocks ME Coastal Maine Mafic Rocks Dpb Perry Fm; basalt member ME NH-ME Sequence Calcgranofels Dpk Parker Bog Formation ME Coastal Maine Metamorphic Rocks, other Dpss Perry Fm; sandstone member ME NH-ME Sequence Pelitic Rocks Ds Seboomook Formation ME Bronson Hill Sequence Pelitic Rocks Ds Seboomook Formation ME NH-ME Sequence Calcpelite DSas Allagash Lake Fm; mixed sedimentary rocks ME Bronson Hill Sequence Calcpelite DSas Allagash Lake Fm; mixed sedimentary rocks ME NH-ME Sequence Basalt DSav Allagash Lake Fm; basalt and mixed sedimentary rocks ME Bronson Hill Sequence Basalt DSav Allagash Lake Fm; basalt and mixed sedimentary rocks ME NH-ME Sequence Pelitic Rocks Dsb Swanback Fm. ME NH-ME Sequence Metamorphic Rocks, other DSbbc Bell Brook Fm; conglomerate member ME NH-ME Sequence Pelitic Rocks DSbbs Bell Brook Fm; pelite member ME Coastal Maine Pelitic Rocks DSbh Bar Harbor Fm. ME NH-ME Sequence Mafic Rocks Dsc Seboomook Fm: Camera Hill Greenstone ME Coastal Maine Felsic Volcanics DSca Castine Fm. ME Coastal Maine Pelitic Rocks DScd Calderwood Fm. ME NH-ME Sequence Metamorphic Rocks, other Dscg Unnamed conglomerate ME NH-ME Sequence Pelitic Rocks Dsd Seboomook Fm: Day Mountain Member ME NH-ME Sequence Metamorphic Rocks, other Dsdc Seboomook Fm: Day Mountain Member ME NH-ME Sequence Calcgranofels Dsdl Seboomook Fm: Day Mountain Member ME NH-ME Sequence Pelitic Rocks DSfh Fogelin Hill Fm. ME NH-ME Sequence Pelitic Rocks DSfp Frost Pond Shale ME NH-ME Sequence Calcpelite DSfrl Fish River Lake Fm. ME NH-ME Sequence Calcpelite DSm Madrid Formation ME NH-ME Sequence Metamorphic Rocks, other Dsm Madrid Formation ME NH-ME Sequence Calcgranofels DSm Madrid Formation ME NH-ME Sequence Granite, other DSmig Undiff. sed. rks ext. migmatization ME NH-ME Sequence Metamorphic Rocks, other Dsq Seboomook Fm; unnamed quartzite ME NH-ME Sequence Pelitic Rocks DSra Rindgemere Formation: Upper member ME NH-ME Sequence Calcgranofels DSrb Rindgemere Formation: Lower member ME NH-ME Sequence Calcgranofels DSrbl Rindgemere Fm: Lower member ME NH-ME Sequence Sulfidic Schists DSrbr Rindgemere Fm: Lower member ME NH-ME Sequence Calcpelite DSs Spider Lake,Chandler Pond, and Third Lake Formations ME NH-ME Sequence Sulfidic Schists Dst Seboomook Fm: Temple Stream Member ME NH-ME Sequence Metamorphic Rocks, other DStc Towow Fm: Conglomerate member ME Coastal Maine Basalt DStf Thorofare Andesite ME Coastal Maine Metamorphic Rocks, other DSuc Unnamed conglomerate ME NH-ME Sequence Mafic Rocks Dsug Seboomook Fm; unnamed mafic greenstone ME NH-ME Sequence Pelitic Rocks Dsup Seboomook Fm; unnamed pelite ME NH-ME Sequence Pelitic Rocks DSus Unnamed sedimentary rocks ME Bronson Hill Sequence Pelitic Rocks DSuss Unnamed conglomeratic sandstone ME Coastal Maine Mafic Rocks DSuv Unnamed volcanic rocks ME NH-ME Sequence Mafic Rocks DSuv Unnamed volcanic rocks ME NH-ME Sequence Mafic Rocks DSv Spider Lake and Chandler Pong Formations ME Coastal Maine Felsic Volcanics DSvh Vinalhaven rhyolite ME NH-ME Sequence Pelitic Rocks Dt Tarratine Formation ME NH-ME Sequence Metamorphic Rocks, other Dtm Tarratine Fm: Misery Quartzite ME NH-ME Sequence Calcgranofels Dtmc Tarratine Fm: McKenny Pond Limestone ME NH-ME Sequence Pelitic Rocks Dto Tomhegan Formation ME NH-ME Sequence Felsic Volcanics Dtokc Tomhegan Fm: Kineo Rhyolite Member ME NH-ME Sequence Felsic Volcanics Dtokg Tomhegan Fm: Kineo Rhyolite Member ME NH-ME Sequence Felsic Volcanics Dtokm Tomhegan Fm: Kineo Rhyolite Member ME NH-ME Sequence Felsic Volcanics Dtrb Traveler Rhyolite; Black Cat Mbr. ME NH-ME Sequence Felsic Volcanics Dtrp Traveler Rhyolite; Pogy Mbr. ME NH-ME Sequence Metamorphic Rocks, other Dtv Trout Valley Fm. ME NH-ME Sequence Metamorphic Rocks, other Duc Unnamed conglomerate ME NH-ME Sequence Calcgranofels Dulc Unnamed limestone comglomerate ME NH-ME Sequence Pelitic Rocks Dup Unnamed pelite ME NH-ME Sequence Felsic Volcanics Durg Unnamed garnet rhyolite ME NH-ME Sequence Felsic Volcanics Dury Unnamed rhyolite ME NH-ME Sequence Pelitic Rocks Dus Unnamed sedimentary rocks ME NH-ME Sequence Pelitic Rocks Duss Unnamed lithic sandstone and conglomerate ME NH-ME Sequence Mafic Rocks Duvm Unnamed mafic volcanic rocks ME NH-ME Sequence Metamorphic Rocks, other Dw Whiskey Quartzite ME NH-ME Sequence Pelitic Rocks DZar Appleton Ridge Fm. ME NH-ME Sequence Pelitic Rocks DZg Gonic Formation ME NH-ME Sequence Alkali Granite J1 Granite ME NH-ME Sequence Mafic Rocks K(z) Calcareous feldspathic sandstone; intrusive breccia ME NH-ME Sequence Alkali Granite K1 Calcareous feldspathic sandstone; granite ME NH-ME Sequence Alkali Granite K1a Alkali-feldspar granite ME NH-ME Sequence Alkali Granite K1b Granite ME NH-ME Sequence Alkali Granite K4a Alkali-feldspar quartz syenite ME NH-ME Sequence Mafic Rocks K5 Quartz monzonite ME NH-ME Sequence Mafic Rocks K6-9 Quartz diorite and gabbro, diorite, andultramafic rocks ME NH-ME Sequence Alkali Granite K7a Alkali-feldspar syenite ME NH-ME Sequence Mafic Rocks K8 Monzodiorite ME NH-ME Sequence Mafic Rocks K9 Gabbro, diorite, and ultramafic rocks ME NH-ME Sequence Mafic Rocks Kv Mafic to felsic volcanic rocks ME NH-ME Sequence Alkali Granite Mz1(h) Hornblende-biotite granite ME NH-ME Sequence Alkali Granite Mz10 Foid-bearing syenite ME NH-ME Sequence Alkali Granite Mz7 Syenite ME NH-ME Sequence Alkali Granite Mz7a Alkali-feldspar syenite ME NH-ME Sequence Mafic Rocks Mz9 Gabbro, diorite, and ultramafic rocks ME Bronson Hill Sequence Felsic Volcanics Mzv Mafic to felsic volcanic rocks ME NH-ME Sequence Felsic Volcanics Mzv Mafic to felsic volcanic rocks ME Bronson Hill Sequence Granite, other O1 Granite ME Bronson Hill Sequence Granite, other O1b Alkali-feldspar granite ME Bronson Hill Sequence Granite, other O1b-2 Alkali-feldspar granite andgranodiorite ME Bronson Hill Sequence Granite, other O2 Granodiorite ME Bronson Hill Sequence Granite, other O4c(h) Hornblende-biotite quartz monzonite ME Bronson Hill Sequence Mafic Rocks O6(h) Argillaceous limestone and/or dolostone ME Bronson Hill Sequence Mafic Rocks O9 Gabbro, diorite, and ultramafic rocks ME Bronson Hill Sequence Mafic Rocks Oam Ammonoosuc Volcanics ME Bronson Hill Sequence Sulfidic Schists Obb Blind Brook Fm. ME Coastal Maine Pelitic Rocks Obh Benner Hill Fm. ME Coastal Maine Sulfidic Schists Obhg Benner Hill fm; ME NH-ME Sequence Pelitic Rocks Obl Belle Lake Slate ME Bronson Hill Sequence Basalt Obp Bluffer Pond Fm. ME Bronson Hill Sequence Felsic Volcanics Obpr Bluffer Pond Fm; ME Coastal Maine Metamorphic Rocks, other OC-b Mount Battie Fm. ME Coastal Maine Sulfidic Schists OC-c Cookson Fm. ME Bronson Hill Sequence Mafic Rocks OC-cb Chase Brook Fm. ME Coastal Maine Sulfidic Schists OC-cqr Cookson Fm ME Coastal Maine Sulfidic Schists OC-cr Cookson Fm ME Coastal Maine Pelitic Rocks OC-css Cookson Fm ME Coastal Maine Mafic Rocks OC-cv Cookson Fm ME Bronson Hill Sequence Pelitic Rocks OC-d Dead River Fm ME Bronson Hill Sequence Pelitic Rocks OC-dp Dead River Fm: Lower member ME Bronson Hill Sequence Pelitic Rocks OC-dq Dead River Fm: Upper member ME Bronson Hill Sequence Basalt OC-hm Hurd Mountain Fm. ME Bronson Hill Sequence Metamorphic Rocks, other Ocl Chase Lake Fm. ME Bronson Hill Sequence Metamorphic Rocks, other Oclc Chase Lake Fm ME Bronson Hill Sequence Pelitic Rocks Ocls Chase Lake Fm ME Coastal Maine Pelitic Rocks OC-me Megunticook Fm ME Coastal Maine Pelitic Rocks OC-me Megunticook Fm ME Coastal Maine Carbonate Rocks OC-mel Megunticook Fm ME Coastal Maine Sulfidic Schists OC-p Penobscot Fm ME Coastal Maine Basalt OC-pg Penobscot Fm ME Coastal Maine Sulfidic Schists OC-pmig Penobscot Fm ME Bronson Hill Sequence Pelitic Rocks Ocr Chandler Ridge Fm ME Bronson Hill Sequence Pelitic Rocks OC-s Sawmill Fm ME Bronson Hill Sequence Pelitic Rocks OC-sc Southeast Cove Fm ME Bronson Hill Sequence Pelitic Rocks OC-sd Saint Daniel Fm ME Bronson Hill Sequence Pelitic Rocks OC-us Unnamed sedimentary rocks ME NH-ME Sequence Pelitic Rocks OC-us Unnamed sedimentary rocks ME Bronson Hill Sequence Mafic Rocks OC-uv Unnamed volcanic rocks ME Bronson Hill Sequence Pelitic Rocks OC-z Aziscohos Formation ME Bronson Hill Sequence Pelitic Rocks Odmp Chandler Ridge Fm ME Bronson Hill Sequence Pelitic Rocks Odms Chandler Ridge Fm ME Bronson Hill Sequence Felsic Volcanics Odmv Chandler Ridge Fm ME Bronson Hill Sequence Mafic Rocks Odw Dry Wall volcanic rocks ME Bronson Hill Sequence Sulfidic Schists Ohh Holmes Hole Fm. ME Bronson Hill Sequence Felsic Volcanics Ok Kennebec Fm ME Bronson Hill Sequence Basalt Okmg Kamankeag Fm ME Bronson Hill Sequence Pelitic Rocks Okms Kamandeag Fm ME Bronson Hill Sequence Basalt Olm Lobster Mountain Vol. Complex ME Bronson Hill Sequence Mafic Rocks Olm Lobster Mountain Vol. Complex ME Bronson Hill Sequence Basalt Olma Lobster Mtn Vol. ME Bronson Hill Sequence Basalt Olmb Lobster Mtn Vol. ME Bronson Hill Sequence Pelitic Rocks Om Madawaska Lake Fm. ME Bronson Hill Sequence Felsic Volcanics Oml Munsungun Lake Fm. ME Bronson Hill Sequence Pelitic Rocks Opm Pile Mountain Argillite ME Bronson Hill Sequence Pelitic Rocks Oq Quimby Formation ME Bronson Hill Sequence Pelitic Rocks Oqg Quimby Fm ME Bronson Hill Sequence Pelitic Rocks Oqs Quimby Fm ME Bronson Hill Sequence Felsic Volcanics Oqv Quimby Fm ME Bronson Hill Sequence Basalt Osb Shin Brook Fm ME NH-ME Sequence Pelitic Rocks Oup Unnamed pelite ME NH-ME Sequence Sulfidic Schists Our Unnamed sulfidic pelite ME NH-ME Sequence Pelitic Rocks Ous Unnamed sandstone and pelite ME Coastal Maine Pelitic Rocks Ous Unnamed sandstone and pelite ME Coastal Maine Pelitic Rocks Ouss Unnamed sandstone ME Coastal Maine Pelitic Rocks Oussp Unnamed quartz sandstone and pelite ME Bronson Hill Sequence Mafic Rocks Ouv Unnamed volcanic rocks ME NH-ME Sequence Mafic Rocks Ouv Unnamed volcanic rocks ME NH-ME Sequence Felsic Volcanics Ouvf Unnamed felsic volcanic rocks ME NH-ME Sequence Basalt Ouvm Unnamed mafic volcanic rocks ME Bronson Hill Sequence Basalt Ouvm Unnamed mafic volcanic rocks ME Coastal Maine Basalt Ouvm Unnamed mafic volcanic rocks ME Bronson Hill Sequence Mafic Rocks Ouvs Unnamed volcanic and sedimentary rocks ME Bronson Hill Sequence Mafic Rocks Ow Winterville Fm. ME Bronson Hill Sequence Metamorphic Rocks, other Owc Wassataquoik Chert ME Coastal Maine Mafic Rocks OZc Cushing Formation ME Coastal Maine Pelitic Rocks OZce Cape Elizabeth Fm ME Coastal Maine Metamorphic Rocks, other OZceq Cape Elizabeth Fm ME Coastal Maine Mafic Rocks OZcev Cape Elizabeth Fm ME Coastal Maine Mafic Rocks OZcf Columbia Falls Fm ME Coastal Maine Mafic Rocks OZcg Cushing Fm ME Coastal Maine Carbonate Rocks OZcl Cushing Fm ME Coastal Maine Metamorphic Rocks, other OZcq Cushing Fm ME Coastal Maine Sulfidic Schists OZcr Cushing Fm ME Coastal Maine Pelitic Rocks OZe Ellsworth Fm ME Coastal Maine Metamorphic Rocks, other OZef Ellsworth Fm ME Coastal Maine Mafic Rocks OZev Ellsworth Fm ME Coastal Maine Sulfidic Schists OZj Jewell Formation ME Coastal Maine Calcgranofels OZm Macworth Formation ME Coastal Maine Mafic Rocks OZpg Passagassawakeag block ME Coastal Maine Calcgranofels OZpgl Passagassawakeag block ME Coastal Maine Pelitic Rocks OZpgs Passagassawakeag block ME Coastal Maine Mafic Rocks OZs Spring Point Formation ME Coastal Maine Pelitic Rocks OZsc Scarboro and Diamond Island Formations ME Coastal Maine Carbonate Rocks OZsk Spurwink Limestone ME Coastal Maine Pelitic Rocks OZus Unnamed sedimentary rocks ME Bronson Hill Sequence Granite, other pC-c Gneisses: Chain Lakes Massif ME NH-ME Sequence Granite, other S1 Granite ME Bronson Hill Sequence Granite, other S1 Granite ME NH-ME Sequence Mafic Rocks S9 Gabbro, diorite, and ultramafic rocks ME Bronson Hill Sequence Mafic Rocks S9 Gabbro, diorite, and ultramafic rocks ME Coastal Maine Mafic Rocks S9 Gabbro, diorite, and ultramafic rocks ME Coastal Maine Ultramafic Rocks S9c Gabbro, diorite, and ultramafic rocks ME Coastal Maine Calcpelite Sak Ames Knob Fm ME NH-ME Sequence Pelitic Rocks Sbb Burnt Brook Fm ME NH-ME Sequence Pelitic Rocks Sc Capens Formation ME NH-ME Sequence Metamorphic Rocks, other Scgu Allsbury Fm ME Coastal Maine Basalt Sdb Dennys Fm ME Coastal Maine Mafic Rocks Sdv Dennys Fm ME Coastal Maine Mafic Rocks Se Edmunds Fm ME NH-ME Sequence Metamorphic Rocks, other Sf Frenchville Fm ME NH-ME Sequence Calcgranofels Sfm Rocks of the Fivemile Brook Sequence ME NH-ME Sequence Basalt Sfmg Greenstone of the Fivemile Brook Sequence ME NH-ME Sequence Calcgranofels Sg Greenvale Cove Formation ME Bronson Hill Sequence Calcgranofels Sg Greenvale Cove Formation ME Coastal Maine Pelitic Rocks Sh Hersey Fm ME Bronson Hill Sequence Calcpelite Shm Hardwood Mountain Formation ME NH-ME Sequence Calcpelite Shm Hardwood Mountain Formation ME NH-ME Sequence Pelitic Rocks Sj Jemtland Fm ME Coastal Maine Basalt Slb Leighton Fm ME Coastal Maine Mafic Rocks Slv Leighton Fm ME NH-ME Sequence Pelitic Rocks Smm Maple Mountain Fm ME NH-ME Sequence Calcgranofels Sns New Sweden Fm ME Coastal Maine Metamorphic Rocks, other So Oak Bay Fm ME NH-ME Sequence Pelitic Rocks SOar Aroostook River Fm ME NH-ME Sequence Calcpelite SOcm Carys Mill Fm ME NH-ME Sequence Pelitic Rocks SOcml Carys Mill Fm ME NH-ME Sequence Pelitic Rocks SOcms Carys Mill Fm ME NH-ME Sequence Mafic Rocks SOdb Dunn Brook Fm ME Bronson Hill Sequence Pelitic Rocks SOf Frontenac Formation ME Bronson Hill Sequence Basalt SOfc Frontenac Fm: Canada Falls Volcanic Mbr ME NH-ME Sequence Metamorphic Rocks, other SOlb Lobster Lake Fm ME NH-ME Sequence Pelitic Rocks SOm Mattawamkeag Fm ME NH-ME Sequence Metamorphic Rocks, other SOmh Mars Hill Conglomerate ME NH-ME Sequence Pelitic Rocks SOn Nine Lake Fm. ME NH-ME Sequence Metamorphic Rocks, other SOuc Unnamed conglomerate ME NH-ME Sequence Pelitic Rocks SOup Unnamed pelite ME NH-ME Sequence Sulfidic Schists SOur Unnamed sulfidic pelite ME Bronson Hill Sequence Pelitic Rocks SOus Unnamed sedimentary rocks ME NH-ME Sequence Mafic Rocks SOuv Unnamed volcanic rocks ME NH-ME Sequence Calcpelite SOv Vassalboro Fm ME NH-ME Sequence Calcgranofels SOv Vassalboro Fm ME NH-ME Sequence Felsic Volcanics SOvv Vassalboro Fm ME NH-ME Sequence Pelitic Rocks Sp Perry Mountain Fm ME NH-ME Sequence Pelitic Rocks Spu Allsbury Fm ME Coastal Maine Pelitic Rocks Sqp Quoddy Fm ME Coastal Maine Mafic Rocks Sqv Quoddy Fm ME Coastal Maine Mafic Rocks Sqvu Quoddy Fm ME NH-ME Sequence Pelitic Rocks Sr Rangeley Fm ME NH-ME Sequence Pelitic Rocks Sra Rangely Fm: 'A' member ME NH-ME Sequence Metamorphic Rocks, other Srac Rangely Fm: 'A' member ME NH-ME Sequence Pelitic Rocks Srb Rangely Fm: 'B' member ME NH-ME Sequence Pelitic Rocks Src Rangely Fm: 'C' member ME NH-ME Sequence Felsic Volcanics Srm Rocky Mountain quartz latite ME NH-ME Sequence Calcgranofels Srp Ripogenus Fm ME NH-ME Sequence Calcpelite Ss Sangerville Fm ME NH-ME Sequence Calcgranofels Ss Sangerville Fm ME NH-ME Sequence Pelitic Rocks Ssa Sangerville Fm ME NH-ME Sequence Calcgranofels Ssal Sangerville Fm ME NH-ME Sequence Sulfidic Schists Ssar Sangerville Fm ME NH-ME Sequence Metamorphic Rocks, other Ssc Sangerville Fm ME NH-ME Sequence Sulfidic Schists Ssf Smalls Falls Fm ME NH-ME Sequence Sulfidic Schists Ssf? Smalls Falls Fm ME NH-ME Sequence Calcgranofels Ssl Sangerville Fm ME NH-ME Sequence Pelitic Rocks Ssm Smyrna Mills Fm ME NH-ME Sequence Calcgranofels Sspm Sangerville Fm; Patch Mountain Member ME NH-ME Sequence Calcgranofels Sspr Spragueville Fm ME NH-ME Sequence Sulfidic Schists Ssr Sangerville Fm ME NH-ME Sequence Pelitic Rocks Ssu Allsbury Fm ME NH-ME Sequence Calcpelite Stf The Forks Fm ME NH-ME Sequence Calcgranofels Stf The Forks Fm ME NH-ME Sequence Metamorphic Rocks, other Suc Unnamed conglomerate ME Bronson Hill Sequence Metamorphic Rocks, other Suc Unnamed conglomerate ME NH-ME Sequence Metamorphic Rocks, other Sucs Unnamed conglomeratic sandstone ME NH-ME Sequence Calcgranofels Sul Unnamed limestone ME Bronson Hill Sequence Calcgranofels Sul Unnamed limestone ME NH-ME Sequence Sulfidic Schists Sur Unnamed sulfidic pelite ME NH-ME Sequence Calcgranofels Sus Unnamed sedimentary rocks ME NH-ME Sequence Metamorphic Rocks, other Suss Unnamed sandstone ME NH-ME Sequence Basalt Suvm Unnamed mafic volcanic rocks ME NH-ME Sequence Mafic Rocks Suvs Unnamed volcanic and sedimentary rocks ME NH-ME Sequence Pelitic Rocks Sw Waterville Fm ME NH-ME Sequence Mafic Rocks Swb West Branch volcanic rocks ME NH-ME Sequence Calcgranofels Swl Waterville Fm ME NH-ME Sequence Ultramafic Rocks SZ9c Ultramafic rocks, fold-bearing syenite ME NH-ME Sequence Calcgranofels SZb Berwick Formation ME NH-ME Sequence Calcgranofels SZe Eliot Formation ME NH-ME Sequence Calcgranofels SZk Kittery Formation ME Coastal Maine Carbonate Rocks Zcb Coombs Limestone ME Coastal Maine Pelitic Rocks Zi Rocks of Islesboro ME Coastal Maine Carbonate Rocks Zil Rocks of Islesboro; limestone ME Coastal Maine Mafic Rocks Znh North Haven Fm ME Coastal Maine Mafic Rocks Znh North Haven Fm ME Coastal Maine Pelitic Rocks Zop Ogier Point Fm ME NH-ME Sequence Pelitic Rocks Zr Rye Fm ME Coastal Maine Metamorphic Rocks, other Zrk Rockport Fm NH Bronson Hill Sequence Pelitic Rocks C-h Hurricane Mtn. Fm NH Bronson Hill Sequence Mafic Rocks C-jb Jim Pond Fm NH Bronson Hill Sequence Granite, other D1b Pink equigranular biotite granite NH Waits River-Gile Mtn. Granite, other D1b Pink equigranular biotite granite NH NH-ME Sequence Granite, other D1b Pink equigranular biotite granite NH Bronson Hill Sequence Peraluminous Granite D1m Two-mica granite of northern and southeastern NH NH NH-ME Sequence Peraluminous Granite D1m Two-mica granite of northern and southeastern NH NH Bronson Hill Sequence Granite, other D2b Porphyritic biotitie granodiorite NH Bronson Hill Sequence Granite, other D3Ab Biotite tonalite NH NH-ME Sequence Granite, other D3Ab Biotite tonalite NH NH-ME Sequence Granite, other D3Bb Biotite trondhjemite in Rumney Quadrangle NH Bronson Hill Sequence Mafic Rocks D6 Biotite quartz diorite in northeastern NH NH NH-ME Sequence Mafic Rocks D6 Biotite quartz diorite in northeastern NH NH Bronson Hill Sequence Granite, other Db2b Bethlehem Granodiorite NH NH-ME Sequence Granite, other Db2b Bethlehem Granodiorite NH NH-ME Sequence Peraluminous Granite Dc1m Concord Granite NH Bronson Hill Sequence Peraluminous Granite Dc1m Concord Granite NH NH-ME Sequence Granite, other Dc3Am Two-mica tonalite NH NH-ME Sequence Mafic Rocks De9 Exeter Diorite NH Waits River-Gile Mtn. Pelitic Rocks Dg Gile Mountain Fm NH Waits River-Gile Mtn. Pelitic Rocks Dg Gile Mountain Fm NH Waits River-Gile Mtn. Calcgranofels Dgc Gile Mountain Fm NH Waits River-Gile Mtn. Pelitic Rocks Dgm Gile Mountain Fm NH Waits River-Gile Mtn. Mafic Rocks Dgv Gile Mountain Fm NH Waits River-Gile Mtn. Pelitic Rocks Di Ironbound Mtn Fm NH Bronson Hill Sequence Pelitic Rocks Di Ironbound Mtn Fm NH NH-ME Sequence Pelitic Rocks Di Ironbound Mtn Fm NH Bronson Hill Sequence Mafic Rocks Dib Ironbound Mtn Fm NH Bronson Hill Sequence Sulfidic Schists Die Ironbound Mtn Fm NH Bronson Hill Sequence Felsic Volcanics Dif Ironbound Mtn Fm NH Waits River-Gile Mtn. Felsic Volcanics Dih Ironbound Mt Fm; Grits at Halls Stream in northern NH NH Bronson Hill Sequence Felsic Volcanics Dir Ironbound Mtn Fm NH NH-ME Sequence Granite, other Dk2x NH PS: Kinsman Granodiorite NH Bronson Hill Sequence Granite, other Dk2x NH PS: Kinsman Granodiorite NH Bronson Hill Sequence Pelitic Rocks Dl Littleton Fm NH NH-ME Sequence Pelitic Rocks Dl Littleton Fm NH Bronson Hill Sequence Pelitic Rocks Dl Littleton Fm NH Bronson Hill Sequence Pelitic Rocks Dl Littleton Fm NH Bronson Hill Sequence Metamorphic Rocks, other Dl+Sc (See Dl and Sc descriptions) NH NH-ME Sequence Calcgranofels Dlc Littleton Fm NH NH-ME Sequence Metamorphic Rocks, other Dlcs Littleton Fm NH NH-ME Sequence Pelitic Rocks Dll Littleton Fm NH NH-ME Sequence Pelitic Rocks Dlu Littleton Fm NH Bronson Hill Sequence Mafic Rocks Dlv Littleton Fm NH NH-ME Sequence Mafic Rocks Dlvb Littleton Fm NH Bronson Hill Sequence Mafic Rocks Dlvs Littleton Fm NH NH-ME Sequence Mafic Rocks Dlvs Littleton Fm NH NH-ME Sequence Mafic Rocks Ds1-6 Spaulding Tonalite NH NH-ME Sequence Granite, other Ds1-6 Spaulding Tonalite NH NH-ME Sequence Granite, other Ds1-6+Dc1m (See Ds1-6 and Dc1m descriptions) NH NH-ME Sequence Mafic Rocks Ds6-9B Hypersthene-biotite quartz diorite NH Bronson Hill Sequence Mafic Rocks DS9 Metamorphosed gabbro, diorite, andintrusive basalt dikes NH Bronson Hill Sequence Mafic Rocks DS9 Metamorphosed gabbro, diorite, andintrusive basalt dikes NH NH-ME Sequence Granite, other DSlr Migmatitic rocks NH NH-ME Sequence Granite, other Dw3A Winnipesaukee Tonalite NH Bronson Hill Sequence Alkali Granite J1-4l Leuocratic granite to quartz syenite NH Bronson Hill Sequence Felsic Volcanics J1a Mount Osceola Granite NH Bronson Hill Sequence Alkali Granite J1h Hastingsite granite NH NH-ME Sequence Alkali Granite J1h Hastingsite granite NH Bronson Hill Sequence Alkali Granite J1hx Granite porphyry NH NH-ME Sequence Alkali Granite J1hx Granite porphyry NH NH-ME Sequence Alkali Granite J1O Nepheline-sodalite-hastingsite syenite NH Bronson Hill Sequence Alkali Granite J1r Mesoperthitic granite NH NH-ME Sequence Alkali Granite J1r Mesoperthitic granite NH NH-ME Sequence Alkali Granite J1x Porphyritic granite NH Waits River-Gile Mtn. Alkali Granite J4h Hornblende or alkalic amphibolequartz syenite NH Bronson Hill Sequence Alkali Granite J4h Hornblende or alkalic amphibolequartz syenite NH NH-ME Sequence Alkali Granite J4h Hornblende or alkalic amphibolequartz syenite NH NH-ME Sequence Alkali Granite J4hx Porphyritic hornblende or alkalicamphibole quartz syenite NH NH-ME Sequence Alkali Granite J4x Quartz syenite NH Bronson Hill Sequence Mafic Rocks J5 Hornblende-biotite quartzmonzodiorite NH NH-ME Sequence Mafic Rocks J5 Hornblende-biotite quartzmonzodiorite NH Waits River-Gile Mtn. Alkali Granite J7h Hornblende (or alkalic amphibole)syenite NH Bronson Hill Sequence Alkali Granite J7h Hornblende (or alkalic amphibole)syenite NH NH-ME Sequence Alkali Granite J7h Hornblende (or alkalic amphibole)syenite NH NH-ME Sequence Alkali Granite J7x Porphyritic syenite NH NH-ME Sequence Mafic Rocks J8 Augite monzodiorite NH NH-ME Sequence Mafic Rocks J9A Diorite NH Waits River-Gile Mtn. Mafic Rocks J9Ah Porphyritic hornblende diorite NH NH-ME Sequence Mafic Rocks J9B Gabbro NH Bronson Hill Sequence Alkali Granite Jc1b Conway Granite--mesoperthic biotitegranite NH NH-ME Sequence Alkali Granite Jc1b Conway Granite--mesoperthic biotitegranite NH NH-ME Sequence Felsic Volcanics Jmv Moat Volcanics NH NH-ME Sequence Alkali Granite Jo1b Mount Osceola Granite NH NH-ME Sequence Alkali Granite Jo1h Mount Osceola Granite NH NH-ME Sequence Felsic Volcanics K1a Rhyolite and fine-grained granite NH NH-ME Sequence Alkali Granite K1bx Porphyritic biotite granite NH NH-ME Sequence Alkali Granite K1r Mesoperthitic granite, withriebeckite and(or) hastingsite NH NH-ME Sequence Alkali Granite K2 Biotite-hornblende granodiorite NH NH-ME Sequence Alkali Granite K4x Large mesoperthitic phenocrysts inquartz syenite of "Albany NH NH-ME Sequence Alkali Granite K7C Augite-hornblende-biotite monzonite NH NH-ME Sequence Mafic Rocks K9A Hornblende diorite NH NH-ME Sequence Mafic Rocks K9AB Augite hornblende diorite and gabbro NH NH-ME Sequence Mafic Rocks K9B Augite-hornblende-biotite gabbro NH NH-ME Sequence Alkali Granite Kc1b Mesoperthic biotite granite NH NH-ME Sequence Mafic Rocks Kv Basalt, minor rhyolite ignimbriteand andesitic tuff NH Bronson Hill Sequence Peraluminous Granite MD1m Two-mica granite NH NH-ME Sequence Peraluminous Granite MD3B Trondhjemite and abundant pegmatite NH Bronson Hill Sequence Mafic Rocks Oal Ammonoosuc Volcanics NH Bronson Hill Sequence Mafic Rocks Oalb Ammonoosuc Volcanics NH Bronson Hill Sequence Pelitic Rocks Oalg Ammonoosuc Volcanics NH Bronson Hill Sequence Pelitic Rocks Oali Ammonoosuc Volcanics NH Bronson Hill Sequence Pelitic Rocks Oals Ammonoosuc Volcanics NH Bronson Hill Sequence Mafic Rocks Oalx Ammonoosuc Volcanics NH Bronson Hill Sequence Mafic Rocks Oalx+O-Cd (See Oalx and O-Cd descriptions) NH Bronson Hill Sequence Pelitic Rocks Oaus Amoonoosuc Volcanics NH Bronson Hill Sequence Mafic Rocks Oaux Amoonoosuc Volcancs NH Bronson Hill Sequence Granite, other Oc1b Biotite granite (Cambridge Black pluton) NH Bronson Hill Sequence Granite, other Oc3Ah Hornblende-biotite tonalite NH Bronson Hill Sequence Granite, other Oc3Ax Porphyritic phase of hornblende-biotite tonalite NH Bronson Hill Sequence Mafic Rocks Oc9B Gabbro and diabase NH Bronson Hill Sequence Pelitic Rocks O-Cd Dead River Fm NH Bronson Hill Sequence Pelitic Rocks O-Cdp Dead River Fm NH Bronson Hill Sequence Pelitic Rocks O-Czl Aziscohos Fm NH Bronson Hill Sequence Pelitic Rocks O-Czu Aziscohos Fm NH Bronson Hill Sequence Granite, other Oh2-9a Highlandcroft Plutonic Suite NH Bronson Hill Sequence Granite, other Oh2h Highlandcroft Plutonic Suite NH Bronson Hill Sequence Granite, other Oj3A Tonalite NH Bronson Hill Sequence Granite, other Oo1-3A granite, granodiorite, and tonalite NH Bronson Hill Sequence Granite, other Oo1-3B granite, granodiorite, and trondhjemite NH Bronson Hill Sequence Granite, other Oo1b Biotite granite NH Bronson Hill Sequence Granite, other Oo1bx Porphyritic (alkalic feldspar)biotite granite NH Bronson Hill Sequence Granite, other Oo1h hornblende-biotite granite NH Bronson Hill Sequence Granite, other Oo2-3A Granodiorite to tonalite NH Bronson Hill Sequence Granite, other Oo2b Biotite granodiorite NH Bronson Hill Sequence Granite, other Oo2bx Porphyritic biotite granodioritein no. Jefferson dome NH Bronson Hill Sequence Granite, other Oo2h Hornblende granodiorite NH Bronson Hill Sequence Granite, other Oo3B Trondhjemite NH Bronson Hill Sequence Granite, other Oo3B-6 Trondhjemite and quartz diorite inno. Jefferson dome NH Bronson Hill Sequence Granite, other Oo4-7h Hornblende-biotite quartz syenite to syenite NH Bronson Hill Sequence Granite, other Oo4Ch Hornblende quartz monzonite NH Bronson Hill Sequence Mafic Rocks Oo9B Hornblende gabbro NH Bronson Hill Sequence Sulfidic Schists Op Partridge Fm NH Bronson Hill Sequence Mafic Rocks Opv Partridge Fm NH Bronson Hill Sequence Mafic Rocks Opvi Partridge Fm NH Bronson Hill Sequence Sulfidic Schists Oq Quimby Fm NH NH-ME Sequence Granite, other OZrb Rye Complex: Breakfast Hill Granite NH NH-ME Sequence Pelitic Rocks OZrz Rye Complex NH NH-ME Sequence Peraluminous Granite P1m Gray biotite granite NH NH-ME Sequence Peraluminous Granite PM1m Two-mica granite of the Sebagobatholith and Effingham pluto NH Bronson Hill Sequence Granite, other S1b Biotite granite stock and dikes NH NH-ME Sequence Granite, other Sa2x Ayer Granodiorite NH Bronson Hill Sequence Metamorphic Rocks, other Sc Clough Quartzite NH Bronson Hill Sequence Calcpelite Sf Fitch Fm NH NH-ME Sequence Calcpelite Sf Fitch Fm NH Bronson Hill Sequence Metamorphic Rocks, other Sfc Fitch and Clough Fm NH Bronson Hill Sequence Metamorphic Rocks, other Sfc+Db2b (See Sfc and Db2b descriptions) NH Bronson Hill Sequence Pelitic Rocks Sfr Frontenac Fm NH Waits River-Gile Mtn. Pelitic Rocks Sfr Frontenac Fm NH Bronson Hill Sequence Mafic Rocks Sfrb Frontenac Fm NH NH-ME Sequence Mafic Rocks Sfrb Frontenac Fm NH Waits River-Gile Mtn. Mafic Rocks Sfrb Frontenac Fm NH Waits River-Gile Mtn. Calcgranofels Sfrc Frontenac Fm NH Waits River-Gile Mtn. Pelitic Rocks Sfrg Frontenac Fm NH Bronson Hill Sequence Mafic Rocks Sfrv Frontenac Fm NH Bronson Hill Sequence Mafic Rocks Sfrx Frontenac Fm NH Bronson Hill Sequence Metamorphic Rocks, other Sg Greenvale Cove Fm NH NH-ME Sequence Calcgranofels Sm Madrid Fm NH NH-ME Sequence Sulfidic Schists Smsf Madrid and Smalls Falls Fms NH Bronson Hill Sequence Sulfidic Schists Smsf Madrid and Smalls Falls Fms NH NH-ME Sequence Sulfidic Schists Smsf Madrid and Smalls Falls Fms NH NH-ME Sequence Granite, other Sn1x NH PS: Newburyport Complex NH NH-ME Sequence Granite, other Sn2-3A NH PS: Newburyport Complex NH NH-ME Sequence Calcgranofels SOb Berwick Fm NH NH-ME Sequence Calcpelite SObc Berwick Fm NH NH-ME Sequence Calcgranofels SObc Berwick Fm NH NH-ME Sequence Pelitic Rocks SObg Berwick Fm NH NH-ME Sequence Calcgranofels SOe Eliot Fm NH NH-ME Sequence Sulfidic Schists SOec Eliot Fm NH NH-ME Sequence Calcgranofels SOk Kittery Fm NH Bronson Hill Sequence Pelitic Rocks Sp Perry Mtn Fm NH NH-ME Sequence Pelitic Rocks Sp Perry Mtn Fm NH NH-ME Sequence Sulfidic Schists Spr Perry Mtn and Rangely Fms NH Bronson Hill Sequence Sulfidic Schists Spr Perry Mtn and Rangely Fms NH Bronson Hill Sequence Mafic Rocks Spvs Perry Mtn Fm NH Bronson Hill Sequence Mafic Rocks Spvs Perry Mtn Fm NH Bronson Hill Sequence Pelitic Rocks Sr Rangely Fm NH NH-ME Sequence Pelitic Rocks Sr Rangely Fm NH NH-ME Sequence Pelitic Rocks Src Rangely Fm NH Bronson Hill Sequence Pelitic Rocks Src Rangely Fm NH NH-ME Sequence Pelitic Rocks Srl Rangely Fm: Lower part NH Bronson Hill Sequence Pelitic Rocks Srl Rangely Fm: Lower part NH NH-ME Sequence Calcgranofels Srlp Rangely Fm NH Bronson Hill Sequence Sulfidic Schists Sru Rangely Fm: Upper part NH NH-ME Sequence Sulfidic Schists Sru Rangely Fm: Upper part NH NH-ME Sequence Calcgranofels Srup Rangely Fm NH NH-ME Sequence Felsic Volcanics Srvf Rangely Fm NH Bronson Hill Sequence Sulfidic Schists Ssf Smalls Falls Fm NH NH-ME Sequence Sulfidic Schists Ssf Smalls Falls Fm NH Bronson Hill Sequence Sulfidic Schists Ssf Smalls Falls Fm NH Bronson Hill Sequence Mafic Rocks Ssfb Smalls Falls Fm NH Bronson Hill Sequence Mafic Rocks Ssfc Smalls Falls Fm NH Bronson Hill Sequence Pelitic Rocks Ssff Smalls Falls Fm NH Bronson Hill Sequence Felsic Volcanics Ssfx Smalls Falls Fm NH NH-ME Sequence Granite, other Zmz Massabesic Gneiss Complex RI Avalon Belt Pelitic Rocks Cpc+OCcj Pirates Cove Fm. & Jamestwon Fm. RI Avalon Belt Granite, other Dsa Scituate Igneous Suite RI Avalon Belt Mafic Rocks Dsd Scituate Igneous Suite RI Avalon Belt Granite, other Dsfg Scituate Igneous Suite RI Avalon Belt Granite, other Dsg Scituate Igneous Suite RI Avalon Belt Granite, other Dsgd Scituate Igneous Suite RI Avalon Belt Granite, other Dsm Scituate Igneous Suite RI Avalon Belt Felsic Volcanics Dsr Scituate Igneous Suite RI Avalon Belt Felsic Volcanics Dsv Scituate Igneous Suite RI Avalon Belt Ultramafic Rocks DZc Cumberlandite RI Avalon Belt Mafic Rocks DZgd gabbro/diorite RI Avalon Belt Mafic Rocks Jm monchiquite RI Avalon Belt Unconsolidated Sed. Kr Raritan Fm RI Avalon Belt Peraluminous Granite MDca alkali-feldspar granite of Cumberland RI Avalon Belt Pelitic Rocks OC-cdi Conanicut Grp: Dutch Island Harbor Fm RI Avalon Belt Pelitic Rocks OC-cep Conanicut Grp: East Passage Fm RI Avalon Belt Pelitic Rocks OC-cfb Conanicut Grp: Fort Burnside Fm RI Avalon Belt Pelitic Rocks OC-cj Conanicut Grp: Jamestown Fm RI Avalon Belt Pelitic Rocks OC-cj+OC-cfb Conanicut Grp: Jamestown Fm RI Avalon Belt Pelitic Rocks OC-cu Conanicut Grp; undifferentiated RI Avalon Belt Ultramafic Rocks OC-m Minette RI Narragansett Basin Narragansett Basin Sed. Pnbd Narragansett Bay Grp RI Narragansett Basin Narragansett Basin Sed. Pnbpo Narragansett Bay Grp RI Narragansett Basin Narragansett Basin Sed. Pnbpu Narragansett Bay Grp RI Narragansett Basin Narragansett Basin Sed. Pnbr Narragansett Bay Grp RI Narragansett Basin Narragansett Basin Sed. Pnbs Narragansett Bay Grp RI Narragansett Basin Narragansett Basin Sed. Pnbw Narragansett Bay Grp RI Avalon Belt Peraluminous Granite Pnfg Narr. Pier Plut. Ste RI Avalon Belt Peraluminous Granite Png Narr. Pier Plut. Ste RI Avalon Belt Peraluminous Granite Pnlg Narr. Pier Plut. Ste RI Avalon Belt Peraluminous Granite Pnpg Narr. Pier Plut. Ste RI Narragansett Basin Narragansett Basin Sed. PZmc Metaclastic rock, undivided RI Avalon Belt Unconsolidated Sed. Qal Quaternary sediments RI Avalon Belt Mafic Rocks Td Diabase RI Avalon Belt Metamorphic Rocks, other Tvq Vein quartz RI Avalon Belt Mafic Rocks Zbm Blackstone Grp RI Avalon Belt Mafic Rocks Zbm Blackstone Grp RI Avalon Belt Metamorphic Rocks, other Zbq Blackstone Grp RI Avalon Belt Calcpelite Zbs Blackstone Grp RI Avalon Belt Calcgranofels Zbs Blackstone Grp RI Avalon Belt Mafic Rocks Zbu Blackstone Grp RI Narragansett Basin Mafic Rocks Zbu Blackstone Grp RI Avalon Belt Avalon Granite Zeag Esmond Igneous Suite RI Avalon Belt Avalon Granite Zefg Esmond Igneous Suite RI Avalon Belt Avalon Granite Zefv Esmond Igneous Suite RI Avalon Belt Avalon Granite Zeg Esmond Igneous Suite RI Avalon Belt Avalon Granite Zegd Esmond Igneous Suite RI Avalon Belt Avalon Granite Zegg Esmond Igneous Suite RI Avalon Belt Mafic Rocks Zem Esmond Igneous Suite RI Avalon Belt Avalon Granite Zha Harmony Grp: Absalona Fm RI Avalon Belt Avalon Granite Zhn Harmony Grp: Nipsachuck Fm RI Avalon Belt Felsic Volcanics Zhw Harmony Grp: Woonasquatucket Fm RI Avalon Belt Calcgranofels Zms mica schist RI Avalon Belt Calcgranofels Znfa Newport Grp: Fort Adams Fm RI Avalon Belt Pelitic Rocks Znnn Newport Grp: Newport Neck Fm RI Avalon Belt Pelitic Rocks Znpn Newport Grp: Price Neck Fm RI Avalon Belt Metamorphic Rocks, other Zp Plainfield Fm RI Avalon Belt Avalon Granite Zsag Sterling Plutonic Grp RI Avalon Belt Avalon Granite Zseg Granites of SE RI RI Avalon Belt Avalon Granite Zsepg Granites of SE RI RI Avalon Belt Avalon Granite Zsgg Sterling Plutonic Grp RI Avalon Belt Mafic Rocks Zsmg Sterling Plutonic Grp RI Avalon Belt Mafic Rocks Zwm Waterford Gr: Mamacoke Fm RI Avalon Belt Avalon Granite Zwr Waterford Grp: Rope Ferry Gneiss VT Grenville Shelf Sequence Carbonate Rocks C-bh Bridgeman Hill Fm. VT Eugeosyncline Sequence Pelitic Rocks C-br Breeze Fm VT Eugeosyncline Sequence Pelitic Rocks C-brc Breeze Fm VT Grenville Shelf Sequence Pelitic Rocks C-c Chesire Quartzite VT Grenville Belt Metamorphic Rocks, other C-cg Bull Hill Gniess VT Grenville Belt Carbonate Rocks C-cm Cavendish Fm VT Grenville Belt Carbonate Rocks C-cm Cavendish Fm VT Grenville Belt Pelitic Rocks C-cr Cavendish Fm, Readsboro Mbr. VT Grenville Shelf Sequence Carbonate Rocks C-cs Clarendon Springs, Ticonderoga, and Rock River dolomites VT Grenville Shelf Sequence Carbonate Rocks C-cs+C-w (See C-cs amd C-w) VT Grenville Shelf Sequence Carbonate Rocks C-d Dunham dolomite VT Grenville Shelf Sequence Pelitic Rocks C-da Danby and Potsdam formations VT Grenville Belt Pelitic Rocks C-dt Dalton Fm VT Grenville Shelf Sequence Carbonate Rocks C-f Forestdale marble VT Eugeosyncline Sequence Pelitic Rocks C-h Hazens Notch Fm VT Eugeosyncline Sequence Mafic Rocks C-hb Hazens Notch Fm; Belvidere Mtn. amphibolite member VT Eugeosyncline Sequence Mafic Rocks C-hg Hazens Notch Fm VT Eugeosyncline Sequence Pelitic Rocks C-hm Hazens Notch Fm VT Grenville Belt Pelitic Rocks C-ho Hoosac Fm VT Eugeosyncline Sequence Pelitic Rocks C-ho Hoosac Fm VT Eugeosyncline Sequence Mafic Rocks C-hog Hoosac Fm VT Grenville Belt Mafic Rocks C-hog Hoosac Fm VT Eugeosyncline Sequence Mafic Rocks C-ht Hoosac Fm, Turkey Mtn. Mbr. VT Eugeosyncline Sequence Pelitic Rocks C-hw Hatch Hill and West Castleton formations VT Grenville Shelf Sequence Pelitic Rocks C-m Monkton quartzite VT Grenville Shelf Sequence Pelitic Rocks C-m+C-d (See C-m and C-w) VT Grenville Shelf Sequence Pelitic Rocks C-mo Moosalamoo phyllite VT Eugeosyncline Sequence Pelitic Rocks C-o Ottauquechee Fm VT Eugeosyncline Sequence Mafic Rocks C-og Ottauquechee Fm VT Eugeosyncline Sequence Pelitic Rocks C-p Pinnacle Fm VT Eugeosyncline Sequence Pelitic Rocks C-p+C-ho (See C-p and C-ho) VT Eugeosyncline Sequence Pelitic Rocks Omm+C-o VT Grenville Shelf Sequence Pelitic Rocks C-pa Parker slate VT Eugeosyncline Sequence Sulfidic Schists C-pc Pinney Hollow Fm VT Eugeosyncline Sequence Mafic Rocks C-pg Pinney Hollow Fm VT Bronson Hill Sequence Mafic Rocks C-pg Pinney Hollow Fm VT Eugeosyncline Sequence Mafic Rocks C-pgc Pinney Hollow Fm, Chester amphibolite mbr. VT Eugeosyncline Sequence Pelitic Rocks C-ph Pinney Hollow Fm VT Eugeosyncline Sequence Mafic Rocks C-pt Pinnacle Fm; Tibbit Hill volcanic member VT Grenville Shelf Sequence Carbonate Rocks C-rb Rugg Brook Fm VT Grenville Shelf Sequence Pelitic Rocks C-s Sweetsburg Fm VT Eugeosyncline Sequence Pelitic Rocks C-s Sweetsburg Fm VT Grenville Shelf Sequence Pelitic Rocks C-sa Sweetsburg Fm; St. Albans slate member VT Grenville Shelf Sequence Carbonate Rocks C-sb Saxe Brook dolomite VT Eugeosyncline Sequence Pelitic Rocks C-sbc St. Catherine Fm VT Eugeosyncline Sequence Pelitic Rocks C-sc St. Catherine Fm VT Eugeosyncline Sequence Pelitic Rocks C-scz St. Catherine Fm VT Grenville Shelf Sequence Pelitic Rocks C-sh Sweetsburg Fm VT Grenville Shelf Sequence Carbonate Rocks C-sr Sweetsburg Fm VT Grenville Shelf Sequence Pelitic Rocks C-ssm Sweetsburg Fm VT Grenville Belt Pelitic Rocks C-t Tyson Fm. VT Eugeosyncline Sequence Pelitic Rocks C-u Underhill Fm. VT Eugeosyncline Sequence Pelitic Rocks C-ua Underhill Fm, Mount Abraham schist member VT Eugeosyncline Sequence Pelitic Rocks C-ub Underhill Fm, Battell Mbr. VT Eugeosyncline Sequence Pelitic Rocks C-uc Underhill Fm VT Eugeosyncline Sequence Pelitic Rocks C-ufb Underhill Fm; Foot Brook Mbr. VT Eugeosyncline Sequence Pelitic Rocks C-ufp Underhill Fm.; Fairfield Pong Mbr. VT Eugeosyncline Sequence Mafic Rocks C-ug Underhill Fm VT Eugeosyncline Sequence Pelitic Rocks C-uj Underhill Fm.; Jay Peak Mbr VT Eugeosyncline Sequence Mafic Rocks C-up Underhill Fm.; Peaked Mountain Mbr VT Eugeosyncline Sequence Carbonate Rocks C-uw Underhill Fm.; White Brook Mbr. VT Grenville Shelf Sequence Carbonate Rocks C-w Winooski dolomite VT Waits River-Gile Mtn. Pelitic Rocks Dg Gile Mtn. Fm VT Waits River-Gile Mtn. Mafic Rocks Dga Gile Mtn. Fm VT Waits River-Gile Mtn. Pelitic Rocks Dgh Gile Mtn. Fm, Hall Stream Mbr VT Waits River-Gile Mtn. Pelitic Rocks Dgm Gile Mtn. Fm, Meetinghouse Slate Mbr VT Bronson Hill Sequence Pelitic Rocks Dl Littleton Fm VT Bronson Hill Sequence Pelitic Rocks Dl Littleton Fm VT Waits River-Gile Mtn. Pelitic Rocks DSn Northfield Fm VT Eugeosyncline Sequence Pelitic Rocks DSn Northfield Fm VT Waits River-Gile Mtn. Calcpelite Dw Waits River Fm VT Waits River-Gile Mtn. Calcpelite Dwa Waits River Fm.; Ayers Cliff limestone Mbr VT Waits River-Gile Mtn. Calcpelite Dwb Waits River Fm.; Barton River Mbr VT Waits River-Gile Mtn. Metamorphic Rocks, other Dwc Waits River Fm, Crow Hill Mbr VT Waits River-Gile Mtn. Mafic Rocks Dws Waits River Fm, Standing Volcanic Pond Mbr VT Bronson Hill Sequence Granite, other hu undifferentiated granitic rocks VT Bronson Hill Sequence Granite, other nhb Bethlehem gneiss VT Waits River-Gile Mtn. Mafic Rocks nhd Metadiorite VT Waits River-Gile Mtn. Granite, other nhu Undifferentiated granitic rock VT Bronson Hill Sequence Granite, other nhu Undifferentiated granitic rock VT Eugeosyncline Sequence Granite, other nhu Undifferentiated granitic rock VT Waits River-Gile Mtn. Granite, other nhu+Omhb (See nhu and Omhb) VT Bronson Hill Sequence Mafic Rocks Oa Amonoosuc Volcanics VT Bronson Hill Sequence Pelitic Rocks Oal Albee Formation VT NH-ME Sequence Pelitic Rocks Oal Albee Formation VT Grenville Shelf Sequence Carbonate Rocks Ob Bascom Fm., and Luke Hill, Naylor Ledge,and Hastings Creek VT Grenville Shelf Sequence Pelitic Rocks Obb Bascom Fm., and Luke Hill, Naylor Ledge,and Hastings Creek VT Grenville Shelf Sequence Carbonate Rocks Oc Cutting dolomite, and Morgan Corner andWallace Creek format VT Grenville Shelf Sequence Carbonate Rocks Ocb Chipman, Bridport, and Beldens Fm.; Providence Island dolom VT Grenville Shelf Sequence Carbonate Rocks Ocbe Chipman, Bridport, and Beldens Fm.; Providence Island dolom VT Grenville Shelf Sequence Carbonate Rocks Ocbr Chipman, Bridport, and Beldens Fm.; Providence Island dolom VT Grenville Shelf Sequence Pelitic Rocks Och Cumberland Head Fm VT Eugeosyncline Sequence Pelitic Rocks OC-s Stowe Formation VT Eugeosyncline Sequence Pelitic Rocks OC-sc Stowe Fm VT Eugeosyncline Sequence Mafic Rocks OC-sg Stowe Fm VT Eugeosyncline Sequence Mafic Rocks OC-sg+us (See OC-sg and us) VT Eugeosyncline Sequence Pelitic Rocks OC-u Pinney Hollow Ottauquechee Fm, and Stowe Formations VT Grenville Shelf Sequence Carbonate Rocks Ocw Chipman, Bridport, and Beldens Fm.; Providence Islanddolomi VT Grenville Shelf Sequence Carbonate Rocks Ogl Glens Falls Fm.; Larrabee Mbr VT Grenville Shelf Sequence Carbonate Rocks Ogo Glens Falls and Orwell limestone VT Grenville Shelf Sequence Carbonate Rocks Ogs Glens Falls Fm.; Shoreham Mbr. VT Grenville Shelf Sequence Pelitic Rocks Oh Hortonville Fm VT Grenville Shelf Sequence Pelitic Rocks Oha Hathaway Fm VT Grenville Shelf Sequence Carbonate Rocks Ohg Hortonville, or Cumberland Head, and Glens Falls formations VT Grenville Shelf Sequence Carbonate Rocks Ohi Highgate Fm VT Grenville Shelf Sequence Pelitic Rocks Oi Iberville Fm VT Eugeosyncline Sequence Mafic Rocks Omb Missisquoi Fm, Barnard Volcanic Mbr VT Eugeosyncline Sequence Sulfidic Schists Omc Missisquoi Fm VT Eugeosyncline Sequence Mafic Rocks Omco Missisquoi Fm; Coburn Hill Volcanic Mbr VT Eugeosyncline Sequence Pelitic Rocks Omcr Missisquoi Fm, Cram Hill Mbr VT Eugeosyncline Sequence Pelitic Rocks Omh Mount Hamiltion Fm VT Eugeosyncline Sequence Pelitic Rocks Omhb Missisquoi Fm.; Harlow Bridge quartzite member VT Grenville Shelf Sequence Carbonate Rocks Omi Middlebury and Chazy limestone; Youngman and Carman format VT Grenville Shelf Sequence Carbonate Rocks Omic Middlebury and Chazy limestone. VT Grenville Shelf Sequence Carbonate Rocks Omid Middlebury and Chazy limestone VT Grenville Shelf Sequence Carbonate Rocks Omiv Middlebury and Chazy limestone VT Grenville Shelf Sequence Carbonate Rocks Omiv+Omid+Om (See Omiv, Omid, Om) VT Grenville Shelf Sequence Pelitic Rocks Oml Morses Line Fm VT Eugeosyncline Sequence Pelitic Rocks Omm Missisquoi Fm, Moretown Mbr VT Eugeosyncline Sequence Carbonate Rocks Omu Missisquoi Fm.; Umbrella Hill Mbr VT Eugeosyncline Sequence Pelitic Rocks Omw Missisquoi Fm, Whetstone Hill, Mbr VT Grenville Shelf Sequence Carbonate Rocks Oo Orwell limestone, and Isle La Motte and Lowville limestones VT Bronson Hill Sequence Pelitic Rocks Oof Orfordville Fm VT Bronson Hill Sequence Mafic Rocks Oop Orfordville Fm, Post Volcanic Pond Mbr VT Grenville Shelf Sequence Pelitic Rocks Oor Orwell limestone, and Isle La Motte and Lowville limestones VT Bronson Hill Sequence Mafic Rocks Oos Orfordville Fm.; Sunday Mountain volcanics VT Bronson Hill Sequence Sulfidic Schists Op Partridge Fm VT Eugeosyncline Sequence Pelitic Rocks Opa Pawlet Fm VT Bronson Hill Sequence Sulfidic Schists Opv Partridge Fm VT Grenville Shelf Sequence Carbonate Rocks Os Shelburne, Whitehall, and Strites Pond formations VT Grenville Shelf Sequence Pelitic Rocks Osp Stony Point Fm VT Grenville Shelf Sequence Pelitic Rocks Osp+Oi (See Osp and Oi) VT Bronson Hill Sequence Granite, other ou Biotite quartz diorite gneiss VT Grenville Belt Metamorphic Rocks, other pC Mount Holly Complex VT Grenville Belt Grenville Granites pCg gneissic biotite granite, quartz monzonite,and granodiorite VT Grenville Belt Grenville Granites pCgn gneiss, quartzite, calc-silicate granulite VT Grenville Belt Carbonate Rocks pCm Mount Holly Complex VT Grenville Belt Metamorphic Rocks, other pCsg Stamford gneiss VT Grenville Belt Metamorphic Rocks, other pCsq Mount Holly Complex, quartzite mbr VT Grenville Belt Metamorphic Rocks, other pCsq+C-t (See pCsq and C-t) VT Bronson Hill Sequence Metamorphic Rocks, other Sc Clough Fm VT Waits River-Gile Mtn. Metamorphic Rocks, other Sf Fitch Fm VT Bronson Hill Sequence Metamorphic Rocks, other Sf Fitch Fm VT Waits River-Gile Mtn. Calcpelite Ss Shaw Mtn. Fm. (south of 44 degrees latitude) VT Eugeosyncline Sequence Calcgranofels Ss Shaw Mtn. Fm. (south of 44 degrees latitude) VT Eugeosyncline Sequence Ultramafic Rocks udp Dunite, peridotite, and serpentinite VT Eugeosyncline Sequence Ultramafic Rocks us Serpentinite, carbonate rock, talc-carbonate rock, and stea VT Eugeosyncline Sequence Ultramafic Rocks uu Undifferentiated ultramafic rocks VT Grenville Belt Mafic Rocks wd Hornblende-biotite diorite; gabbro VT Waits River-Gile Mtn. Mafic Rocks wd Hornblende-biotite diorite; gabbro VT Waits River-Gile Mtn. Alkali Granite we Essexite VT Grenville Belt Alkali Granite we Essexite VT Waits River-Gile Mtn. Granite, other wg Biotite and hornblende granites VT Waits River-Gile Mtn. Alkali Granite wg Biotite and hornblende granites VT Grenville Shelf Sequence Basalt wle Bostonite VT Grenville Belt Alkali Granite wn Nepheline syenite and pulaskite VT Grenville Belt Alkali Granite ws Hornblende, biotite, quartz, and augite syenites VT Waits River-Gile Mtn. Alkali Granite ws Hornblende, biotite, quartz, and augite syenites VT Waits River-Gile Mtn. Felsic Volcanics wv Volcanic breccia, felsitic tuft, and flows VT Grenville Belt Felsic Volcanics wv Volcanic breccia, felsitic tuft, and flows