 |
Glaciers |
 |
Water |
 |
*Dcf - Calico Bluff and Ford Lake Shale, undivided |
 |
*Mch - Chert |
 |
*Mn - Nuka Formation |
 |
*lgw - Wahoo Limestone |
|
*sb - Upper Saginaw Bay Formation and similar rocks of southeast Alaska |
 |
|
 |
|
 |
|
 |
|
 |
|
|
=km - Kanektok marble |
|
Clg - Lisburne Group, undivided |
 |
Clgk - Kogruk Formation |
 |
Clgt - Tupik Formation |
 |
Clgv - Volcanic rocks and sills associated with Lisburne Group |
 |
Crc - Rainbow chert |
 |
D
|
 |
D
|
 |
D
|
 |
D
|
 |
DOgi - Syenite, trondhjemite, and granite |
 |
DOhb - Hood Bay Formation |
|
DOka - McCann Hill Chert, Road River Formation, and Troublesome unit of Weber and others (1992) |
|
DOls - Thin-bedded limestone |
 |
DOmvs - Yanert Fork sequence of Csejtey and others (1992) and correlative rocks |
 |
DOnx - Marble, graphitic rocks, and schist |
 |
DOtm - Marble of Tukpahlearik Creek |
 |
DOtp - Pelitic schist and metavolcanic rocks of Tukpahlearik Creek |
 |
DOtu - Metasedimentary and metavolcanic rocks of Tukpahlearik Creek, undivided |
 |
DSbr - Barren Ridge Limestone and correlative units |
 |
DSld - Shallow-marine carbonate-dominated rocks |
|
DSpf - Paradise Fork Formation and correlative units |
 |
DSt - Tolovana Limestone |
 |
DSum - Older ultramafic rocks of southeast Alaska |
 |
DSwc - Whirlwind Creek Formation and correlative units |
 |
DSyl - Limestone of the Seward Peninsula |
|
DZkb - Older carbonate strata of the Porcupine River sequence of Brosge and Reiser (1969) and equivalent units |
 |
DZnl - Mount Copleston Limestone and Nanook Limestone |
 |
DZwp - Farewell platform facies |
 |
D_bg - Baird Group and similar rocks |
 |
D_d - White Mountain sequence, basinal facies |
 |
D_mt - Metaturbidite marble and calcareous schist |
 |
Das - Bimodal metavolcanic rocks |
 |
Dbf - Beaucoup Formation, undivided |
|
Dbfl - Limestone and similar rocks |
 |
Dbfw - Wacke member |
 |
Dcc - Karheen and Cedar Cove Formations |
 |
Dcr - Cascaden Ridge and Beaver Bend combined correlative units |
 |
Degh - Hunt Fork Shale |
|
Degn - Noatak Sandstone |
 |
Dfr - Freshwater Bay and Port Refugio Formations |
|
Dgb - Gambier Bay Formation, undivided |
|
Dgbm - Marble of the Gambier Bay Formation |
|
Dke - Kugururok Formation and Eli Limestone |
 |
Dls - Limestone of the Mystic structural complex |
|
Dlse - Carbonate rocks of southeast Alaska |
|
Dmi - Metamorphosed mafic igneous rocks |
 |
Dmv - Mixed volcanic rocks of southeast Alaska |
 |
Dnr - Nation River Formation |
|
Dof - Ogilvie Formation |
 |
Dogn - Granitic gneiss |
|
Dq - Quail unit of Weber and others (1992) |
 |
Du - Mangaqtaaq formation of Anderson and Watts (1992) and Ulungarat formation of Anderson (1993) |
|
Dv - Metavolcanic rocks and sills |
|
Dvec - Woodchopper Volcanics, and Schwatka unit of Weber and others (1992) |
|
Dyp - Phyllite, slate, and black shale |
|
Dyss - Clastic and calcareous clastic rocks |
 |
J*e - Etivluk Group, undivided |
 |
JDmc - Mystic structural complex, undivided |
|
JDoc - Igneous rocks |
 |
JMct - Cherty tuff and breccia |
 |
JMpu - Younger strata of the Porcupine River sequence of Brosge and Reiser (1969), undivided |
 |
JMsu - Strangle Woman Creek sequence of Brosge and Reiser (1969), undivided |
 |
JPk - Kakhonak Complex and Tlikakila complex of Carlson and Wallace (1983) |
 |
JPs - Calcareous and metabasaltic schist and phyllite |
|
J^ct - Crystal tuff, argillite, chert, graywacke, and limestone |
 |
J^ls - Limestone, shale, and chert |
|
J^mc - McCarthy Formation |
 |
J^mv - Tatina River volcanics of Bundtzen and others (1997a) and similar mafic volcanic rocks |
 |
J^o - Otuk Formation |
 |
J^ob - Ophiolite of the Brooks Range |
 |
J^os - Newenham ophiolite complex |
 |
J^p - Phyllite and chert |
 |
J^pf - Pogibshi formation of Kelley (1980) |
 |
J^pp - Pinnacle Peak Phyllite |
|
J^rb - Red and brown sedimentary rocks and basalt |
 |
J^sch - Blueschist of southern Alaska |
 |
J^v - Tatina River volcanics of Bundtzen and others (1997a), gabbro and diorite |
 |
J^vs - Coarse volcaniclastic sedimentary rocks |
|
Jab - Andesite and basalt |
 |
Jag - Bokan Mountain peralkaline granite and syenite |
|
Jegd - Granodiorite of Hagemeister Island |
 |
Jg - Plutons of the Yukon-Tanana Upland |
|
Jgr - Jurassic phase, Alaska-Aleutian Range batholith, undifferentiated |
 |
Jhg - Plutonic rocks of Hidden terrane |
 |
Jise - Granitic rocks of southeast Alaska |
|
Jit - Spruce Creek tonalite |
|
Jk - Graywacke of Kulukak Bay of Hoare and Coonrad (1978) |
 |
Jms - Micaceous graywacke |
 |
Jnk - Naknek Formation and Kotsina Conglomerate |
 |
Js - Marine sedimentary rocks of the Wrangell Mountains, undivided |
|
Jsc - Shelikof and Chinitna Formations |
 |
Jt - Tuxedni Group |
|
Jtk - Talkeetna Formation |
 |
Jtr - Trondhjemite |
 |
Jum - Gabbronorite and other mafic and ultramafic rocks of Hidden terrane |
|
Jvc - Volcaniclastic and volcanic rocks |
 |
Jvs - Marine volcaniclastic and arkosic sandstone |
 |
J|s - Northern Alaska sedimentary rocks |
 |
J|tu - Ultramafic complexes of western Alaska |
 |
KDt - Togiak-Tikchik Complex, undivided |
 |
KJdg - Diorite and gabbro of southeast Alaska |
 |
KJg - Quartz monzodiorite |
 |
KJgn - Gravina-Nuzotin unit |
 |
KJgv - Volcanic rocks of the Gravina-Nutzotin belt |
 |
KJiv - Andesitic volcanic rocks |
 |
KJks - Kingak Shale and similar units |
 |
KJm - Melange facies |
 |
KJmu - Mafic and ultramafic rocks |
 |
KJmy - Melange of the Yakutat Group |
 |
KJs - Fine-grained sedimentary and metasedimentary rocks |
 |
KJse - Saint Elias suite of Gordey and Makepeace (2003) and similar rocks |
 |
KJv - Highly altered volcanic rocks in southwest Alaska |
 |
KJyg - Yakutat Group, undivided |
 |
KJyh - Graywacke of the Yenlo Hills |
 |
KMmu - West-central Alaska melange-like rocks |
 |
KPu - Kingak Shale, Shublik Formation, and Karen Creek Sandstone, undivided |
 |
K^m - Kelp Bay Group, undivided |
 |
K^s - Restricted Gemuk Group |
 |
K^vs - Volcanic and sedimentary rocks of southwest Alaska |
 |
Kaf - Chugach flysch |
|
Kafv - Volcanic rocks of Chugach accretionary complex |
|
Kcc - Carbonate-rich conglomerate and sandstone deltaic rocks |
 |
Kcct - Cape Current terrane |
 |
Kcgc - Calcareous graywacke and conglomerate |
|
Kcm - Calcareous mudstone |
 |
Kcs - Chignik Formation and similar units in southern Alaska |
|
Kcv - Chert and volcanic sequence |
|
Kcvg - Calcareous graywacke and mudstone, volcanic graywacke and conglomerate |
 |
Keg - Granodiorite and other plutonic rocks |
 |
Kfm - Fortress Mountain Formation |
|
Kfy - Flysch |
|
Kgb - Gabbro and diorite of southeast Alaska |
|
Kgk - Kongakut Formation |
 |
Kgu - Plutonic rocks and dikes, granite to diorite |
|
Khk - Hoodoo and Kaguyak Formations |
 |
Khnl - Herendeen Formation and similar units |
 |
Khs - Rocks of Hammond River shear zone of Till and others (2008a) |
 |
Kipc - Mafic igneous-clast conglomerate, sandstone, and mudstone |
|
Kit - Tingmerkpuk Member of the Ipewik Formation |
|
Kk - Kuskokwim Group, undivided |
 |
Kkbm - Khaz Complex |
|
Kke - Kemik Sandstone |
|
Kkg - Flysch and quartzite, Kandik Group and equivalents |
|
Kkn - Nearshore facies |
|
Klgr - Intermediate granitic rocks |
|
Klqm - Quartz monzonite and monzonite |
 |
Km - Matanuska Formation and correlative rocks |
|
Kmar - Alaska Range melange |
|
Kmf - Minto unit |
 |
Kmgr - Granitic rocks of central and southeast Alaska |
 |
Kmig - Migmatite and metaplutonic rocks |
|
Kmqm - Quartz monzonite, monzonite, and syenite |
 |
Kmss - Marine sandstone and siltstone |
 |
Kmvi - Mafic to intermediate volcano-plutonic complexes |
|
Knf - Nanushuk Formation |
 |
Kof - Okpikruak Formation and similar units |
|
Kpf - Pedmar Formation |
|
Kps - Pelitic schist |
|
Kqc - Quartz-pebble conglomerate, west-central Alaska |
|
Kqcs - Quartz-carbonate sandstone and pebbly mudstone |
|
Ksb - Schrader Bluff Formation |
 |
Ksbd - Spilitic pillow basalt and diabase |
 |
Ksbf - Seabee Formation and Hue Shale |
 |
Ksd - Sandstone, shale, and conglomerate deltaic deposits |
 |
Ksfg - Foliated granitic rocks of Southeast Alaska |
|
Ksg - Sitka Graywacke, undivided |
|
Kst - Staniukovich Formation |
 |
Ksv - Shoshonitic flows and tuff |
|
Ksy - Syenitic rocks |
 |
Kto - Torok Formation |
|
Ktu - Tuluvak Formation |
|
Kum - Ultramafic rocks of southeast Alaska |
|
Kumc - McHugh and Uyak Complexes |
 |
Kvgc - Volcanic graywacke and conglomerate |
 |
Kvu - Volcanic rocks, undivided |
 |
Kyg - Volcanic graywacke and mudstone |
 |
K|um - Dunite and serpentinite, undivided |
|
MDag - Augen gneiss and orthogneiss |
 |
MDe - Endicott Group, undivided |
 |
MDegk - Kanayut Conglomerate and Noatak Sandstone, undivided |
 |
MDgi - Old Crow suite of Gordey and Makepeace (2003) and other granitic rocks of northeast Alaska |
 |
MDip - Iyoukeen and Peratrovich Formations |
 |
MDm - Metabasalt and marble of the Kisaralik anticlinorium |
 |
MDts - Totatlanika Schist |
 |
MDtv - Tuffaceous volcanic rocks |
 |
MDv - Greenstone and schist |
|
MOkg - Kaskawulsh group of Kindle (1953) |
 |
Mek - Kekiktuk Conglomerate |
|
Meks - Kapaloak sequence of Moore and others (2002) |
|
Mes - Kurupa Sandstone |
|
Mgq - Globe quartzite of Weber and others (1992) |
 |
Mk - Kayak Shale |
|
Mlga - Alapah Limestone |
 |
Mlgac - Akmalik Chert and other black chert of the Lisburne Group |
 |
Mlgk - Kuna Formation |
 |
Mlgnu - Nasorak and Utukok Formations |
 |
Mlgw - Wachsmuth Limestone |
|
O
|
 |
O
|
 |
O_dv - Oldest volcanic rocks |
 |
O_jr - Jones Ridge Limestone and related units |
 |
O_v - Fossil Creek Volcanics and similar rocks |
 |
Oc - Chert of Interior Alaska |
 |
Ocs - Casadepaga Schist |
 |
Ogi - Granodiorite and related rocks |
 |
Ols - Lime mudstone |
 |
Onim - Impure marble |
|
Oyl - Argillaceous limestone and limestone |
 |
P*gi - Granodiorite, syenite, and other granitic rocks |
|
P*ms - Mankomen and Skolai Groups, undivided |
|
P*sm - Strelna Metamorphics and related rocks |
 |
P*t - Slana Spur and Station Creek Formations and Tetelna Volcanics |
 |
PDcf - Cannery Formation and Porcupine slate of Redman and others (1985), undivided |
|
PDsc - Sheep Creek formation of Bundtzen and others (1997a) and correlative siliciclastic units of the Mystic structural complex |
 |
Pcs - Clastic and volcaniclastic rocks |
 |
Pe - Echooka Formation |
|
Peh - Eagle Creek and Hasen Creek Formations |
|
Pehls - Limestone of the Hasen Creek and Eagle Creek Formations |
 |
Ph - Halleck Formation and similar sedimentary rock units |
 |
Phb - Volcanic rocks of the Halleck Formation and related rocks of southeast Alaska |
|
Pks - Klondike Schist |
|
Plps - Pybus Formation and correlative? limestone |
 |
Pls - Limestone |
 |
Pm - Marble along the west side of the Coast plutonic complex of Brew and Morrell (1979b) |
|
Pstc - Step Conglomerate |
 |
Ptl - Tahkandit Limestone |
 |
Ptls - Limestone of southwest Alaska |
|
Pv - Volcanic rocks of Puale Bay |
 |
QTgm - Yakataga and Tugidak Formations |
 |
QTi - Young shallow intrusive rocks |
 |
QTm - Contact metamorphosed and hydrothermally altered rocks |
 |
QTs - Poorly consolidated surficial deposits |
 |
QTv - Young volcanic rocks, undifferentiated |
 |
QTvs - Kiska Harbor and Milky River Formations |
 |
Qs - Unconsolidated surficial deposits, undivided |
 |
Qv - Youngest volcanic rocks |
|
SOd - Descon Formation and other sedimentary and volcanic rocks of Prince of Wales Island |
 |
SOdc - Associated carbonate rock |
|
SOig - Iviagik group of Martin (1970) |
 |
SOmi - Heterogeneous metamorphic rocks, southeast Alaska |
|
SOv - Associated volcanic rocks |
 |
SOyl - Dark limestone |
|
SOyld - Limestone, dolostone, and shale |
 |
SZfw - Four Winds complex of Gilbert and others (1987) and similar rocks |
 |
S_pl - Post River Formation and correlative units |
 |
S_s - Sedimentary rocks of Doonerak Window |
 |
Sbs - Black phyllite and metalimestone |
|
Sl - Limestone, southeast Alaska |
|
Slc - Lost Creek unit |
|
St - Turbidite deposits of southeast Alaska |
 |
Stc - Terra Cotta Mountains Sandstone |
 |
Sv - Volcanic rocks in southeast Alaska |
 |
TKcf - Canning Formation |
 |
TKg - Felsic granitic rocks |
|
TKgb - Gabbroic rocks |
 |
TKgd - Granodiorite to quartz monzodiorite |
 |
TKgg - Gneissose granitic rocks |
 |
TKgrs - Ghost Rocks sedimentary rocks |
 |
TKhi - Dikes and subvolcanic rocks |
|
TKis - Intricately intruded areas of volcanic graywacke and mudstone |
 |
TKkf - Krugoli Formation, undifferentiated |
 |
TKm - Ghost Rocks Formation |
|
TKpc - Prince Creek Formation |
 |
TKpd - Peridotite |
|
TKpeg - Trondhjemitic pegmatite |
|
TKs - Conglomerate, sandstone, and lignite |
 |
TKts - Foliated tonalite sill of Coast plutonic complex of Brew and Morrell (1979b) |
 |
TKv - Volcanic rocks in southern Alaska |
|
TKwt - Welded tuff and other felsic volcanic rocks |
 |
Tarcs - Volcaniclastic sedimentary rocks |
 |
Tbk - Basalt and keratophyre |
 |
Tca - Admiralty Island and Cenotaph Volcanics |
 |
Tcb - Coal-bearing sedimentary rocks |
 |
Tcc - Gneiss and amphibolite |
 |
Tcl - Copper Lake Formation |
 |
Tcp - Younger phase, Coast plutonic complex of Brew and Morrell (1979b) |
 |
Tcpp - Porphyritic granodiorite phase of Coast plutonic complex of Brew and Morrell (1979b) |
 |
Tehi - Felsic dikes, sills, and small stocks in southern Alaska |
 |
Tephi - Felsic hypabyssal intrusions |
|
Tepv - Andesite and basalt flows |
|
Tes - Tokun and Stillwater Formations and similar rocks |
 |
Tev - Felsic volcanic rocks of southwest Alaska |
 |
Tgba - Diabase and gabbro, Aleutian Islands |
|
Tgbe - Younger gabbro of southeast Alaska |
|
Tgbw - Gabbro, southwest Alaska |
 |
Tgw - Granite, southwest Alaska and Aleutian Islands |
|
Thi - Hypabyssal intrusions |
|
Tk - Kootznahoo Formation |
|
Tkf - Kulthieth Formation |
 |
Tkn - Kenai Group, undivided |
 |
Tmi - Younger granitic rocks |
|
Tms - Tachilni, Bear Lake, Chuniksak, Nevidiskov, and Chirikof Formations |
|
Tmv - Meshik Volcanics and similar rock units |
|
Tnc - Narrow Cape and Topsy Formations |
|
Tng - Nenana Gravel |
|
Tob - Olivine basalt flows |
 |
Tod - Granodiorite, quartz diorite, and diorite |
|
Toegr - Granitic rocks |
|
Togr - Granite and granodiorite |
|
Togum - Mafic and ultramafic rocks of the Valdez and Orca Groups |
|
Togv - Volcanic rocks of the Orca Group and Ghost Rocks Formation |
 |
Top - Redwood and Poul Creek Formations |
|
Tos - Sedimentary rocks of the Orca Group |
|
Tovs - Sedimentary and volcanic rocks of the Orca Group, undivided |
 |
Tpcv - Cantwell Formation, volcanic rocks subunit |
|
Tpg - Peralkaline granite |
 |
Tpgi - Granitic intrusive rocks of the Chugach accretionary complex |
 |
Tpgr - Undivided granitic rocks |
|
Tpt - Pyroclastic rocks |
 |
Tpv - Basalt and tuff |
|
Tsf - Sagavanirktok Formation |
|
Tsi - Sitkalidak Formation |
|
Tsk - Sitkinak Formation |
|
Tsr - Soda rhyolite and basalt |
|
Tsti - Siltstone of Trinity Islands |
 |
Tsu - Sedimentary rocks, undivided |
 |
Ttk - Nearshore and nonmarine sedimentary rocks |
|
Tts - Tsadaka Formation |
|
Tuu - Unga, Belkofski, and Unalaska Formations |
 |
Tvc - Victoria Creek metamorphic rocks |
|
Tvm - Volcanic rocks of the Aleutian Islands and Alaska Peninsula |
|
Tvs - Volcanic and sedimentary rocks, undivided |
 |
Tvu - Volcanic rocks of southern Alaska |
|
Twv - Wrangell Lava |
 |
T}u - Basement rocks, undifferentiated, Aleutian Islands |
 |
Xio - Kanektok metamorphic complex and Idono Complex |
 |
Zam - Metasedimentary and metavolcanic rocks of Mount Angayukaqsraq |
 |
Zgn - Granite and orthogneiss |
|
Zgns - Orthogneiss of the Seward Peninsula |
 |
Zngn - Metagranitic rocks |
 |
^*eg - Siksikpuk Formation and Immaitchiak Chert |
|
^*sf - Flysch-like sedimentary rocks |
|
^Dtz - Sedimentary rocks |
|
^Msm - Seventymile assemblage |
|
^Psg - Sadlerochit Group, undivided |
 |
^Pvs - Metamorphic rocks, southeast Alaska |
 |
^b - Mafic volcanic rocks of Chilkat Peninsula |
 |
^c - Carbonatite |
 |
^cb - Cottonwood Bay and Chilikradrotna Greenstones |
 |
^cnk - Chitistone and Nizina Limestones and Kamishak Formation |
|
^cs - Calcareous sedimentary rocks |
 |
^dg - Mafic igneous rocks of Duke Island |
|
^gb - Gabbro and quartz gabbro |
 |
^gs - Shublik Formation |
 |
^gsl - Glenn Shale, lower unit |
|
^hg - Hyd Group, undivided |
|
^hgs - Hyd Group sedimentary rocks, undivided |
 |
^hgv - Hyd Group igneous rocks, undivided |
|
^if - Ivishak Formation |
|
^kc - Karen Creek Sandstone |
|
^lb - Limestone and basalt sequence |
|
^ls - Carbonates and associated rocks |
 |
^ms - Metavolcanic and metasedimentary rocks |
|
^n - Nikolai and Goon Dip Greenstones and equivalent rocks |
|
^pg - Port Graham formation of Kelley (1980) |
 |
^qd - Quartz diorite and granodiorite |
|
^rs - Red beds |
|
^sl - Spiculite and sandy limestone |
 |
^sy - Sedimentary member |
 |
^syv - Volcanic member |
 |
^um - Mafic and ultramafic rocks in the vicinity of the Denali Fault System |
 |
^vs - Volcanic and sedimentary rocks of Nakwasina Sound |
 |
^vsw - Older volcanic rocks of southwest Alaska |
|
^wm - Whitestripe Marble of southeast Alaska |
 |
^|bi - Metamorphic rocks of Baranof Island |
|
^|gp - Metagraywacke and phyllite |
|
^|ig - Gabbro and diabase |
 |
^|vs - Volcanic and sedimentary rocks |
 |
_
|
 |
_
|
 |
_
|
 |
_
|
|
_Zls - Dolostone, limestone, orthoquartzite, and minor chert |
|
_Zogn - Orthogneiss |
 |
_a - Adams Argillite |
 |
bu - Bedrock of unknown type or age or areas not mapped |
|
|
|
 |
|
|
|
|
|
 |
|
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 |
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|
|
|
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 |
|
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 |
|
|
 |
|
|
 |
|
|
|
|arqm - Pelitic and quartzose schist of the Alaska Range |
|
|ce - Marble, southeast Alaska |
|
|cn - Marble, northern Alaska |
|
|cu - Black chert |
 |
|e - Eclogite and associated rocks |
 |
|gb - Gabbro and orthogneiss |
 |
|gn - Roof pendants of the Coast plutonic complex of Brew and Morrell (1979b) |
 |
|gp - Phyllite and argillite, Grantley Harbor Fault zone |
|
|kp - Keevy Peak Formation and similar rocks |
 |
|ks - Metamorphic rocks of the Kah Shakes sequence of Rubin and Saleeby (1991), undivided |
|
|ls - Limestone and marble |
|
|m - Marble of the Brooks Range |
 |
|ncs - Younger schist |
 |
|np - Metagabbro and metasedimentary rocks |
|
|pr - Older clastic strata of the Porcupine River sequence of Brosge and Reiser (1969) |
 |
|ps - Porcupine slate of Redman and others (1985) |
|
|ymi - Orthogneiss and amphibolite of igneous origin |
|
|yms - Mafic schist and amphibolite |
|
}mu - Metamorphic rocks of the MacLaren metamorphic belt of Smith and Lanphere (1971) |
 |
}|a - Metamorphic rocks of Admiralty Island, undivided |
 |
}|gs - Green amphibole-bearing schist |
 |
}|i - Undivided dikes and sills, south-central Alaska |
|
}|m - Southwest Alaska melange |
|
}|mb - Metabasite |
|
}|p - Phyllite of the Kisaralik anticlinorium |
 |
}|sk - Metasedimentary rocks of the Kisaralik anticlinorium |
|
}|ss - Metasedimentary and minor metavolcanic rocks along the west side of the Coast plutonic complex of Brew and Morrell (1979b) |
|
}|sv - Metavolcanic rocks west of the Coast plutonic complex of Brew and Morrell (1979b) |
|
}|yo - Peridotite of dismembered ophiolite of the Yukon-Tanana region |