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["Candle","Kcg","Calcareous graywacke and mudstone","Cretaceous","Rhythmically interbedded, medium-gray, yellowish-orange weathering, fine-grained to gritty highly calcareous graywacke and micaceous, calcareous mudstone.  Abundant carbonized plant debris.  Unit coarsens westward.  Estimated more than 5,000 feet thick.","abundant carbonized plant debris",null,"CA002","Sedimentary",null,235,1821,null,null]
["Candle","Qf","Flood-plain deposits","Quaternary","Flood-plain deposits.  Gravel, sand, and silt along flood-plains of major stream valleys",null,null,"CA002","Unconsolidated",null,100,105,1050,null]
["Candle","Qt","Terrace deposits","Quaternary","Terraced alluvial silt deposits with minor peat and gravel",null,null,"CA002","Unconsolidated",null,150,110,null,null]
["Candle","Klc","Limestone conglomerate","Cretaceous","Pebble to boulder limestone conglomerate, poorly sorted, locally derived, non-marine","plant fossils of Cretaceous age",null,"CA002","Sedimentary",null,400,1822,null,null]
["Candle","Kcc","Calcareous graywacke and mudstone","Cretaceous","Poorly sorted nonmarine and shallow-water shelf deposits consisting  of carbonate-rich conglomerate (calcirudite), sandstone (calcarenite), and shale (calcilutite).  Unit contains abundant plant debris and thin seams of bituminous coal.  Clast-supported","abundant carbonized plant debris",null,"CA003","Sedimentary",null,231,1822,null,null]
["Candle","Kcc","Calcareous graywacke and mudstone","Cretaceous","Cyclically interbedded sequence of fine to coarse grained, calcareous graywacke, fine to medium grained carbonaceous, volcanic graywacke, and carbonaceous mudstone.  This unit has been lumped with the eastern part of unit Kcv on the source map and re-lab","abundant carbonized plant debris",null,"CA002","Sedimentary",null,232,1820,null,null]
["Candle","Pzl","Limestone and schist -- Limestone and dolomite","middle Paleozoic","Chiefly light-gray, massively bedded recrystallized limestone and dolomite, containing subordnate calcareous mica schist and dark phyllite","Tentatively assigned middle Paleozoic age based on correlation with fossiliferous carbonate rocks in the Solomon quadrangle",null,"CA002","Metamorphic",null,301,5651,null,50045]
["Candle","Pzs","Limestone and schist -- Quartz-mica schist, mica schist, and quartzite","Paleozoic","Quartz-mica schist, mica schist, and quartzite.  Locally includes calcareous, graphitic, and feldspathic schists, amphibolite schist, phyllite, and thin limestone.  Age and stratigraphic relationship with unit Pzl uncertain, contact may be gradational.",null,null,"CA002","Metamorphic",null,300,5322,null,null]
["Candle","Pzls","Limestone and schist","Paleozoic","Undivided limestone and schist in areas of poor exposure",null,null,"CA002","Sedimentary",null,305,5321,null,null]
["Candle","Kvg","Volcanic graywacke, conglomerate, and mudstone","Cretaceous","Andesitic volcanic graywacke and mudstone with local amounts of granitic rock detritus and fine-grained tuffaceous material and conglomerate",null,"Lead-alpha and K/Ar ages of 90 +/- 10 m.y. to 120 +/- 15 m.y.","CA002","Sedimentary",null,200,2180,null,null]
["Candle","Kvg","Volcanic graywacke, conglomerate, and mudstone","Cretaceous","Hard, fine-grained to conglomeratic, locally tuffaceous, graywacke and dark-gray finely laminated mudstone. The graywacke is composed of matrix-supported clasts of intermediate and mafic volcanic and intrusive rocks and chert.  Clasts of quartz and of me","Marine mollusks of late Early Cretaceous (Albian) age  were identified in this unit in the Bettles, Hughes, and Kateel River quadrangles",null,"CA003","Sedimentary",null,250,2180,null,null]
["Candle","QTb","Basalt","Tertiary (?) and Quaternary","Flows of vesicular olivine basalt.  Minor glassy basalt.  Believed to be correlative with Imuruk Volcanics of Bendeleben quad",null,null,"CA002","Igneous",null,500,350,null,50012]
["Candle","Ksy","Granitic rocks","Cretaceous","Granitic rocks of hornblende and pyroxene monzonite and syenite.  Minor biotite quartz monzonite.  Unit subdivided by Patton (1999, 2000)",null,"lead-alpha age of 90 +/- 10 m.y. and 100 +/- 15 m.y.  K/Ar age of 102 +/- 5 m.y. and K/Ar age of 100 +/- 5 m.y.","CA003","Igneous",null,702,2545,null,50054]
["Candle","KJv","Andesitic volcanic rocks","Jurassic (?) and Cretaceous","Wide variety of andesite volcanic flows and volcaniclastic crystal and lithic tuffs.  Mainly andesitic and trachyandesitic crystal and lithic tuffs, tuffaceous volcanic graywacke, masssive andesitic breccia, agglomerate, and conglomerate","Simbirskites ammonite of Early Cretaceous","K/Ar age of 120 +/- 3 m.y.","CA002","Igneous",null,800,2330,null,50016]
["Selawik","Qga","Undifferentiated older glacial drfit, alluvium, and eolian deposits","Quaternary, Illinoian","Chiefly highly modified till and outwash gravels mantled by wind-blown and water-laid silt and fine sand.",null,null,"SE002","Unconsolidated",null,190,190,1900,null]
["Selawik","Qft","Flood-plain deposits","Quaternary","Silt, sand, and gravel along flood plains of major drainages.  Locally includes some fan and terrace deposits along narrow tributary valleys",null,null,"SE002","Unconsolidated",null,105,105,1050,null]
["Selawik","Qs","Chiefly sand deposits","Quaternary","Modified and dissected deposits of wind-blown and water-laid sand with subordinate amounts of silt",null,null,"SE002","Unconsolidated",null,120,120,1200,null]
["Selawik","Qws","Chiefly wind-blown and water-laid silt","Quaternary","Chiefly wind-blown and water-laid silt.  Locally includes glacial outwash.",null,null,"SE002","Unconsolidated",null,110,120,1200,null]
["Selawik","QTb","Basalt","Pleistocene or Late Tertiary","Dissected, nearly horizontal flows of gray to dark-red vesicular olivine basalt.",null,null,"SE002","Igneous",null,500,350,3500,50012]
["Selawik","Knc","Nonmarine conglomerate, sandstone, mudstone, and coal","Late Cretaceous","Conglomerate composed chiefly of well-sorted white quartz pebbles in quartzose and micaceous matrix; also has pebbles of phyllite, schist, greenstone, and chert in subordinate amounts.  Interbedded quartzose and micaceous sandstone and mudstone.","Abundant well-preserved plant fossils of probable Cretaceous age","Age based on correlative rocks in the Baird Mtns.and Selawik quadrangles dated by K-Ar.","SE002","Sedimentary",null,210,1990,null,null]
["Selawik","Kc","Igneous pebble-cobble conglomerate","late Early Cretaceous (Albian)","Massive poorly stratified and poorly sorted conglomerate composed of pebble- to cobble-sized clasts of mafic extrusive and intrusive rocks in a graywacke and mudstone matrix.",null,null,"SE002","Sedimentary",null,340,2030,null,null]
["Selawik","Kv","Volcanic graywacke and mudstone","late Early Cretaceous (Albian)","Poorly sorted dark greenish-gray volcanic graywacke and mudstone.  (Unit replaced by NSA = 1820, per Patton, 2000)","Shallow-water marine mollusks locally abundant but poorly preserved, probably of Early Cretaceous (Albian) age.",null,"SE002","Sedimentary",null,2105,2105,null,null]
["Selawik","Km","Metasedimentary rocks","late Early Cretaceous (Albian)","Small patches of high-grade metamorphic rocks within Selawik Hills pluton.  Likely to have been of unit Kv in part",null,"K-Ar age of 110 Ma on biotite from metapelite","SE002","Metamorphic","HFS",22105,2105,null,null]
["Selawik","Khe","Felsic hypabyssal and extrusive rocks","Cretaceous(?)","Small widely scattered bodies of fine-grained intrusive and extrusive rocks including soda rhyolite, quartz latite porphyry, sanidine trachyte, and quartz diorite.  Some welded tuff at eastern end of Selawik Hills.",null,null,"SE002","Igneous",null,2210,1602,null,null]
["Selawik","KJv","Andesitic volcanic rocks","earliest(?) Cretaceous and Jurassic(?)","Chiefly andesitic crystal-bearing lithic tuff, volcanic breccia, and volcanic conglomerate with subordinate intercalated andesitic flows.","Abundant Buchia sublevis of earliest Cretaceous locally.",null,"SE002","Igneous",null,800,2330,null,50016]
["Selawik","Kns","Nepheline syenite","Early Cretaceous","Chiefly leuco- to melanocratic, medium-grained nephelene syenite and malignite, with subordinate ijolite, shonkinite, and pyroxenite.",null,"K-Ar age of 107 Ma","SE002","Igneous",null,2535,2535,null,null]
["Selawik","Kgi","Syenite and monzonite","Early Cretaceous","Chiefly leuco- to mesocratic, medium-grained gniessic syenite and monzonite",null,"K-Ar age of 100 Ma","SE002","Igneous",null,700,2545,null,50054]
["Selawik","Kqi+","Quartz monzonite and alaskite","Early Cretaceous","Chiefly leucocratic, fine- to medium-grained cataclastic-textured, monzonite and alaskite",null,"K-Ar age of 99 Ma","SE002","Igneous",null,2530,2530,null,null]
["Selawik","Jv","Altered mafic volcanic rocks","Jurassic (?)","Dark-greenish gray altered basalt and diabase; commonly altered or partially altered to aggregate of chlorite, epidote, and sodic plagioclase",null,"K-Ar ages of 155 and 168 Ma in the Christian quadrangle.","SE002","Igneous",null,160,5140,null,null]
["Selawik","Pzl","Limestone","middle Paleozoic","Light-gray, recrystallized, limestone and dolomite containing minor intercalated phyllite and mica schist.  Arctic Alaska terrane, northern part of quadrangle",null,null,"SE002","Metamorphic",null,301,5525,null,null]
["Selawik","Pzs","Schist and phyllite","middle Paleozoic","Chiefly light- to dark-gray fine-grained quartz-mica schist and grayish-black phyllite.  Subordinate calcareous schist, limestone, chlorite schist, and amphibolite schist.  May locally include metasedimentary rocks of middle Cretaceous age.",null,null,"SE002","Metamorphic",null,300,8605,null,null]
["Selawik","DOtu","Metasedimentary and metavolcanic rocks of Tukpahlearik Creek, undivided","Devonian to Ordovician","Black carbonaceous quartzite and silicieous argillite with lenses of dolostone and marble, silvery gray to silvery green pelitic schist, gray chert pebble metaconglomerate, green calc-schist, micaceous marble, dark green mafic metavolcanic rocks, gray or","Ordovician conodonts and Devonian to Ordovician conodonts",null,"SE003","Metamorphic",null,7450,7450,null,null]
["Selawik","Pzkm","Marble of Klery Creek","Paleozoic","White-weathering, medium- to light-gray marble having subordinate intercalated gray to green quartz-chlorite schist, black carbonaceous quartzite, and tan calcareous mica schist.","Early Devonian to Late Silurian conodonts and earliest Mississippian conodonts",null,"SE003","Metamorphic",null,5320,5525,null,null]
["Selawik","PzpCku","Mixed schists of the Kallarichuk Hills, undivided","Paleozoic and (or) Proterozoic","Silvery green and gray quartz-mica schist, brown calcareous schist, gray marble, and black quartzite.  Carbonaceous rocks compose 20 percent of unit, marble less than 1 percent.  Indicate blueschist metamorphism followed by retrograde greenschist facies","Mississippian to Silurian conodonts","Proterozoic U-Pb age on zircon from granodiorite intruding marble, and K-Ar cooling ages of 114 Ma on muscovite and 91.6 Ma on biotite.","SE003","Metamorphic",null,8650,8650,null,null]
["Norton Bay","Qf","Flood-plain and estuarine deposits","Holocene","Flood-plain and estuarine deposits",null,null,"NR002","Unconsolidated",null,24,116,1160,null]
["Norton Bay","Qt","Terrace and slope deposits","Holocene and Pleistocene","Terrace and slope deposits",null,null,"NR002","Unconsolidated",null,68,110,1100,null]
["Norton Bay","QTb","Basalt","Pleistocene or Pliocene","Basalt",null,null,"NR002","Igneous",null,76,350,3500,null]
["Norton Bay","Ta","Andesite and basalt","Eocene","Andesite and basalt",null,null,"NR002","Igneous",null,12,1103,null,null]
["Norton Bay","TKi","Shallow intrusive rocks","early Tertiary and Late Cretaceous","Shallow intrusive rocks of silicic and intermediate composition.",null,null,"NR002","Igneous",null,75,1603,null,null]
["Norton Bay","TKi","Shallow intrusive rocks - Complex","early Tertiary and Late Cretaceous","Shallow intrusive rocks of silicic and intermediate composition.  Complex of many small intrusive bodies",null,null,"NR002","Igneous",null,336,1650,null,null]
["Norton Bay","Kcm","Granitic rocks of Christmas Mountain pluton","Late Cretaceous","Granitic rocks of Christmas Mountain pluton",null,null,"NR002","Igneous",null,115,2460,null,null]
["Norton Bay","Ts","Shale, sandstone, and coal","Miocene? or Oligocene?","Shale, sandstone, and coal",null,null,"NR002","Sedimentary",null,396,640,null,null]
["Norton Bay","Kv","Andesitic volcanic rocks","Early Cretaceous","Andesitic volcanic rocks",null,null,"NR002","Igneous",null,441,2330,null,50016]
["Norton Bay","MzPzq","Quartzite-metachert, carbonate rocks, phyllite","Mesozoic? and Paleozoic?","Quartzite-metachert, carbonate rocks, phyllite",null,null,"NR002","Metamorphic",null,378,5542,null,null]
["Norton Bay","MzPzr","Reindeer Hills complex","Paleozoic","Thermally altered and metasomatized carbonate rocks, schist, and quartzite intruded by numerous small felsic and mafic bodies",null,null,"NR002","Metamorphic",null,394,5521,null,null]
["Norton Bay","Pzc","Carbonate rocks","Early Paleozoic","Carbonate rocks",null,null,"NR002","Sedimentary",null,440,5651,null,50045]
["Norton Bay","Pzs","Pelitic schist, calc schist, and quartzite","Paleozoic and Proterozoic?","Quartz-muscovite-graphite schist, calc schist, quartzofeldspathic schist, phyllite, and quartzite.  Unit is locally interlayered with unit Pzcs and is therefore, at least in part, Paleozoic in age.  Some of the unit may be as old as Proterozoic.",null,"Samples of the schist yielded a metamorphic mineral K/Ar isotopic cooling age of 124 Ma","NR003","Metamorphic",null,8,5322,null,null]
["Norton Bay","Pzu","Carbonate rocks and schist","Paleozoic","Undivided carbonate rocks and schist in areas of poor exposure",null,null,"NR002","Metamorphic",null,448,5321,null,null]
["Norton Bay","Kcc","Carbonate-rich conglomerate and sandstone","Late and Early Cretaceous","Nonmarine and marine carbonate-rich conglomerate and sandstone deltaic deposits.",null,null,"NR002","Sedimentary",null,726,1822,null,null]
["Norton Bay","Kvc","Volcanic conglomerate and breccia","Early Cretaceous","Massive, poorly stratified pebble to boulder conglomerate, interbedded with dark graywacke and dark finely laminated mudstone.  Unit composed of debris flows and alluvial fan deposits.  Consists chiefly of andesitic volcanic rock detritus, but locally in",null,"A granitic clast from conglomerate yielded a K/Ar cooling age of 113 Ma","NR002","Sedimentary",null,335,2106,null,null]
["Norton Bay","Kct","Carbonate-rich sandstone, siltstone, and shale turbidite deposits","Late and Early Cretaceous","Carbonate-rich sandstone, siltstone, and shale turbidite deposits",null,null,"NR002","Sedimentary",null,728,1821,null,null]
["Norton Bay","Kcvg","Carbonaceous volcanic graywacke and mudstone turbidite deposits","Early Cretaceous","Carbonaceous volcanic graywacke and mudstone turbidite deposits",null,null,"NR002","Sedimentary",null,334,1820,null,null]
["Norton Bay","Ks","Sandstone and shale deltaic deposits, undivided","Late and Early Cretaceous","Nonmarine and marine sandstone and shale deltaic deposits, undivided",null,null,"NR002","Sedimentary",null,738,2021,null,null]
["Norton Bay","Ksm","Marine deltaic deposts","Early Cretaceous","Marine deltaic deposts",null,null,"NR002","Sedimentary",null,964,2101,null,null]
["Norton Bay","Kcs","Calcareous sandstone, siltstone, and shale turbidite deposits","Early Cretaceous","Calcareous sandstone, siltstone, and shale turbidite deposits",null,null,"NR002","Sedimentary",null,872,2152,null,null]
["Norton Bay","Kvg","Volcaniclastic graywacke and mudstone turbidite deposits","Early Cretaceous","Volcaniclastic graywacke and mudstone turbidite deposits",null,null,"NR002","Sedimentary",null,307,2180,null,null]
["Candle","Kcv","Calcareous graywacke and mudstone","Cretaceous","Mixed sequence of calcareous graywacke, calcareous mudstone, volcanic graywacke, and volcanic conglomerate.  Transitional between Kvg and Kcg.  Small area of unit in northeast part of quadrangle reassigned and lumped with unit Kvm by W.W. Patton, Jr. (19","abundant carbonized plant debris",null,"CA002","Sedimentary",null,230,2180,null,null]
["Candle","Kcv","Calcareous graywacke and mudstone","Cretaceous","Mixed sequence of calcareous graywacke, calcareous mudstone, volcanic graywacke, and volcanic conglomerate.  Transitional between Kvg and Kcg.  Unit added by Patton, 1999 by sub-division.  Consists of carbonaceous volcanic graywacke and mudstone turbidit","abundant carbonized plant debris",null,"CA003","Sedimentary",null,230,1820,null,null]
["Candle","Kcv","Calcareous graywacke and mudstone -- conglomerate","Cretaceous","Conglomeritic facies of a mixed sequence of calcareous graywacke, calcareous mudstone, volcanic graywacke, and volcanic conglomerate.  Transitional between Kvg and Kcg.  An area of unit Kcv in the south west part of the quadrangle has been reassigned by","abundant carbonized plant debris",null,"CA003","Sedimentary",null,2281,2106,null,null]
["Norton Bay","Kvc","Volcanic conglomerate and breccia -- conglomerate","Cretaceous","Conglomeritic facies of  volcanic conglomerate and breccia.",null,null,"NR002","Sedimentary",null,231,2106,null,null]
["Norton Bay","Kct","Carbonate-rich sandstone, siltstone, and shale turbidite deposits","Cretaceous","Conglomeritic facies of carbonate-rich sandstone, siltstone, and shale turbidite deposits.",null,null,"NR002","Sedimentary",null,235,1823,null,null]
["Candle","Kvc","Volcanic graywacke, conglomerate, and mudstone","Cretaceous","Andesitic volcanic graywacke and mudstone with local amounts of granitic rock detritus and fine-grained tuffaceous material and conglomerate.  Western outcrops of this unit changed to unit conglomeratic facies of unit Kvc by W.W. Patton, Jr. (1999).",null,"Lead-alpha and K/Ar ages of 90 +/- 10 m.y. to 120 +/- 15 m.y.","CA003","Sedimentary",null,200,2106,null,null]
["Norton Bay","Kcc","Conglomerate facies -- Carbonate-rich conglomerate and sandstone","Late and Early Cretaceous","Conglomerate facies -- Nonmarine and marine carbonate-rich conglomerate and sandstone deltaic deposits.",null,null,"NR002","Sedimentary",null,1816,1822,null,null]
["Norton Bay","Kvc","Intricately intruded areas of Volcanic conglomerate and breccia","Early Cretaceous","Intricately intruded areas of Volcanic graywacke and mudstone, late Early Cretaceous (Albian)",null,null,"NR002","Sedimentary",null,337,2023,null,null]
["Solomon","Qb","Beach deposits","Pleistocene","Beach deposits",null,null,"SO002","Unconsolidated",null,111,115,1150,null]
["Solomon","Qe","Dune sand deposits","Pleistocene","Dune sand deposits",null,null,"SO002","Unconsolidated",null,112,120,1200,null]
["Bendeleben","Qs","Silt and peat","Quaternary","Silt and peat",null,null,"BN002","Unconsolidated",null,113,122,1220,null]
["Bendeleben","Qlt","Lake terrace deposits","Pleistocene","Lake terrace deposits",null,null,"BN002","Unconsolidated",null,114,110,null,null]
["Bendeleben","Qd","Glacial drift","Late Quaternary","Glacial drift",null,null,"BN002","Unconsolidated",null,115,125,1250,null]
["Bendeleben","Qc","Silty colluvium, undivided","Quaternary","Silty colluvium, undivided; includes slope deposits, glacial deposits highly modified by weathering, and volcanic rocks covered by a thick mantle of silt",null,null,"BN002","Unconsolidated",null,116,107,null,null]
["Bendeleben","Qal","Alluvium, undivided","Quaternary","Alluvium, undivided",null,null,"BN002","Unconsolidated",null,117,105,null,null]
["Bendeleben","QTkg","Kougarok Gravel","Quaternary, Tertiary","Kougarok Gravel",null,null,"BN002","Unconsolidated",null,120,285,null,null]
["Bendeleben","Qlj","Lost Jim Basalt","Holocene","Lost Jim Basalt; single basaltic lava flow and vent deposits undisrupted by frost brecciation",null,null,"BN002","Igneous",null,125,305,null,50003]
["Bendeleben","Qv","Volcanic rocks, undivided","Quaternary","Basalt and basaltic andesite flows and associated vent deposits slightly to strongly fragmented by frost riving and locally overlain by windblown silt",null,null,"BN002","Igneous",null,126,300,null,null]
["Bendeleben","QTv","Volcanic rocks, undivided","Quaternary and Tertiary","Volcanic rocks, undivided; Basalt and basaltic andesitic flows and associated vent deposits thoroughly fragmented by frost action",null,null,"BN002","Igneous",null,128,450,null,50012]
["Bendeleben","TKv","Felsic volcanics","Tertiary, Cretaceous","Felsic volcanics; sericitized, limonitized tuff, flow, flow-breccia or vent-breccia",null,null,"BN002","Igneous","ALT-SER",130,1625,null,50014]
["Bendeleben","Ddm","Dolostone and marble","Devonian","Black to dark gray dolostone and marble with relict sedimentary structures and megafossils","\"megafossils\"",null,"BN002","Metamorphic",null,135,7461,null,50004]
["Bendeleben","Sd","Dolostone","Silurian","Light to dark gray fine-grained dolostone",null,null,"BN002","Sedimentary",null,136,6670,null,50058]
["Bendeleben","Od","Dolostone","Ordovician","Pink to light gray weathering, gray to tan fine-grained dolostone with distinct color mottling",null,null,"BN002","Sedimentary",null,137,7540,null,50042]
["Solomon","Cd","Dolostone and marble","Cambrian","Light or medium gray to pinkish orange dolostone which weathers gray to orange; may contain a few percent quartz and white mica",null,null,"SO002","Sedimentary",null,138,8360,null,50000]
["Solomon","DCbm","Black marble","Devonian through Cambrian","Black to dark gray marble and subordinate impure fissile marble; may show rhythmic alteration of purer, coarse crystalline marble and more impure, fine crystalline layers; mafic dikes and plugs common",null,null,"SO002","Sedimentary",null,140,7465,null,50002]
["Bendeleben","Oim","Impure chlorite marble","Ordovician","Buff to orange weathering impure marble characterized by lenses and layers of chlorite-albite schist",null,null,"BN002","Sedimentary",null,142,7750,null,50043]
["Bendeleben","Ocs","Casadepaga schist","Ordovician","Light green and greenish-brown mafic- and calcareous-rich schist",null,null,"BN002","Metamorphic",null,143,7720,null,50053]
["Bendeleben","OCx","Mixed unit","Ordovician, Cambrian","Interlayered pure and impure marble, quartz-graphite schist, and lesser pelite, calc-schist, and mafic schist",null,null,"BN002","Metamorphic",null,144,7467,null,50006]
["Bendeleben","CpCs","Solomon schist","Cambrian, preCambrian","Solomon schist; Tors of resistant, well-foliated quartz-rich pelitic schist, locally containing chloritoid, glaucophane and garnet; minor calc-schist",null,null,"BN002","Metamorphic",null,145,7463,null,null]
["Bendeleben","Pzim","Impure marble","Paleozoic","Buff to orange weathering impure marble containing white mica, chlorite, albite, quartz and graphite; probably facies equivalent of the impure chlorite marble unit (Oim)",null,null,"BN002","Metamorphic",null,146,7750,null,null]
["Solomon","Pzwm","White marble","Paleozoic","White marble",null,null,"SO002","Metamorphic",null,147,12600,null,null]
["Bendeleben","Pzm","Marble, undivided","Paleozoic","Marble, undivided",null,null,"BN002","Metamorphic",null,148,5651,null,50045]
["Bendeleben","Pzd","Dolostone, undivided","Paleozoic","Dolostone, undivided",null,null,"BN002","Sedimentary",null,149,5652,null,50041]
["Bendeleben","Dg","Granitic orthogneiss","Devonian","Light gray to orange-weathering fine-grained orthogneiss of Kiwalik Mountain",null,null,"BN002","Metamorphic",null,150,7250,null,50068]
["Bendeleben","Pzg","Granitic orthogneiss","Paleozoic","Granitic orthogneiss",null,null,"BN002","Metamorphic",null,151,7250,null,50068]
["Bendeleben","PzpCf","Felsic schist","Paleozoic, Precambrian","Felsic schist",null,null,"BN002","Metamorphic",null,152,7261,null,null]
["Bendeleben","Oimh","Impure marble","Ordovician","Orange-weathering, well-foliated marble; upgraded equivalent of the impure chlorite marble unit (Oim); above biotite grade",null,null,"BN002","Metamorphic",null,155,7751,null,null]
["Bendeleben","Ocsh","Calcareous and mafic schist","Ordovician","Brown to green weathering mafic, calcareous, and feldspathic schist; above biotite grade; upgraded equivalent of Casadepaga schist (Ocs)",null,null,"BN002","Metamorphic",null,156,7721,null,null]
["Bendeleben","OCxh","Interlayered marble and quartz-graphite schist","Ordovician, Cambrian","Predominantly marble and quartz-graphite schist above biotite grade; upgraded equivalent of mixed unit (OCx)",null,null,"BN002","Metamorphic",null,157,7701,null,null]
["Bendeleben","CpCsh","Pelitic schist","Cambrian, preCambrian","Pelitic schist with centimeter-thick lenses and layers of quartz; above biotite grade; upgraded equivalent of Solomon schist (CpCs)",null,null,"BN002","Metamorphic",null,158,7463,null,null]
["Bendeleben","PzpCsh","High-grade schist, undivided","Paleozoic to Precambrian","Metasedimentary and metaigneous schist and gneiss above biotite grade; contains rocks which may be equivalent to units described above (Ric- on the map, I believe this unit was labelled PzpCh)",null,null,"BN002","Metamorphic",null,159,12500,null,null]
["Bendeleben","PzpCm","High-grade marble, undivided","Paleozoic to Precambrian","Light-gray weathering coarse-grained pure and impure marble",null,null,"BN002","Metamorphic",null,160,8861,null,null]
["Bendeleben","PzpCg","Migmatite","Paleozoic to Precambrian","Migmatite",null,null,"BN002","Metamorphic",null,161,12950,null,null]
["Bendeleben","PzpCs","Metasediments","Paleozoic to Precambrian","Amphibolite facies metasediments of various lithologies associated with the Windy Creek pluton and Oonatut Granite",null,null,"BN002","Metamorphic",null,162,12500,null,null]
["Bendeleben","PzpCa","Amphibolite","Paleozoic to Precambrian","Garnet amphibolite rubble crop in western Bendeleben Mountains",null,null,"BN002","Metamorphic",null,163,12500,null,null]
["Bendeleben","PzpCo","Orthogneiss","Paleozoic to Precambrian","Orthogneiss",null,null,"BN002","Metamorphic",null,164,9470,null,50065]
["Bendeleben","TKs","Sandstone","Tertiary, Cretaceous","Rocks of the Kugruk fault zone; Siltstone, sandstone, and pebbly sandstone with locally abundant coal seams",null,null,"BN002","Sedimentary",null,165,1520,null,50013]
["Bendeleben","TKc","Conglomerate","Tertiary, Cretaceous","Rocks of the Kugruk fault zone; Conglomerate composed predominantly of carbonate and mafic clasts",null,null,"BN002","Sedimentary",null,166,1520,null,50013]
["Bendeleben","MzPzm","Mylonitic metabasite","Mesozoic, Paleozoic","Rocks of the Kugruk fault zone; Fine-grained, medium bluish-gray metabasite with fine, laminar foliation and rounded, light-green clinopyroxene grains; contains blue amphibole and lawsonite where exposed in the Bendeleben quadrangle",null,null,"BN002","Tectonite",null,167,4990,null,50027]
["Bendeleben","MzPzb","Metabasitic rocks","Mesozoic, Paleozoic","Dark red, green and gray vesicular basalt and basaltic pyroclastic rocks metamorphosed to lower greenschist facies",null,null,"BN002","Metamorphic",null,168,5140,null,null]
["Bendeleben","MzPzs","Serpentinite","Mesozoic, Paleozoic","Serpentinite",null,null,"BN002","Metamorphic",null,169,5190,null,50027]
["Bendeleben","MzPzt","Spruce Creek Tonalite","Mesozoic, Paleozoic","Spruce Creek Tonalite",null,null,"BN002","Igneous",null,170,3470,null,50029]
["Solomon","Tm","Mafic dikes","Tertiary","Mafic dikes",null,null,"SO002","Igneous",null,175,1012,null,null]
["Bendeleben","Ta","Quartz Latite","Tertiary","Quartz Latite; Light tan to orange weathering dikes, sills and plugs of rhyolitic to andesitic composition",null,null,"BN002","Igneous",null,176,1011,null,null]
["Bendeleben","Kog","Oonatut granite","Late Cretaceous","Oonatut granite; Monzogranite and lesser syenogranite",null,"69.2 +/- 2 Ma and 71.2 +/-  Ma K-Ar in biotite","BN002","Igneous",null,177,2460,null,50024]
["Bendeleben","Kp","Pargon pluton","Cretaceous","Pargon pluton; Granodiorite and quartz monzonite",null,null,"BN002","Igneous",null,178,2470,null,50074]
["Bendeleben","Kb","Bendeleben pluton","Cretaceous","Bendeleben pluton; Monzogranite, granodiorite, quartz monzonite, and quartz monzodiorite",null,"81.8 +/- 2 Ma K-Ar in biotite","BN002","Igneous",null,179,2490,null,50011]
["Bendeleben","Kkz","Kuzitrin pluton","Cretaceous","Kuzitrin pluton; Monzogranite",null,"93.0 +/- 1.4 Ma K-Ar in biotite Age may be mis-reported, a late report is 83 Ma","BN002","Igneous",null,180,2490,null,50011]
["Bendeleben","Kku","Kugruk pluton","Cretaceous","Kugruk pluton; Quartz monzonite to quartz monzodiorite",null,"94.9 +/- 2.9 Ma K-Ar in hornblende","BN002","Igneous",null,181,2491,null,50073]
["Bendeleben","Kae","Asses Ears stock","Cretaceous","Asses Ears stock; Monzogranite to syenogranite",null,null,"BN002","Igneous",null,182,2465,null,null]
["Bendeleben","Kcb","Crossfox Butte stock","Cretaceous","Crossfox butte stock; Monzogranite to quartz monzonite",null,null,"BN002","Igneous",null,183,2491,null,50022]
["Bendeleben","Kvb","Virginia Butte stock","Cretaceous","Virginia Butte stock; quartz monzonite to syenite",null,"94.8 +/- 1.9 Ma K-Ar in biotite","BN002","Igneous",null,184,2491,null,50022]
["Bendeleben","Knh","Nimrod Hill stock","Cretaceous","Nimrod Hill stock; monzonite",null,null,"BN002","Igneous",null,185,2491,null,50022]
["Bendeleben","Kd","Darby pluton","Cretaceous","Darby pluton, monzogranite, locally granodiorite",null,"94 Ma K-Ar in biotite and horneblende","BN002","Igneous",null,186,2491,null,50019]
["Bendeleben","Kwc","Windy Creek pluton","Cretaceous","Windy Creek pluton; Quartz monzonite",null,null,"BN002","Igneous",null,187,2491,null,50025]
["Solomon","Kkd","Diorite","Cretaceous","Hybrid diorite of Kachauik pluton",null,null,"SO002","Igneous",null,188,2496,null,50021]
["Solomon","Kkgm","Gneissic monzonite","Cretaceous","Gneissic monzonite of the Kachauik pluton",null,null,"SO002","Igneous",null,189,2610,null,50028]
["Solomon","Kkg","Granodiorite","Cretaceous","Granodiorite to quartz monzonite phase of the Kachauik pluton",null,null,"SO002","Igneous",null,190,2492,null,50020]
["Solomon","Kkms","Monzonite-syenite","Cretaceous","Monzonite-syenite phase of the Kachauik pluton",null,"99.3 +/- 3 Ma K-Ar on horneblende","SO002","Igneous",null,191,2491,null,50071]
["Solomon","Kdc","Dry Canyon stock","Cretaceous","Dry Canyon stock; Nepheline syenite",null,"108 +/- 3 Ma K-Ar in hornblende","SO002","Igneous",null,192,2535,null,50072]
["Bendeleben","Kpg","Pegmatite","Cretaceous","Pegmatite [Digitized as arcs]",null,null,"BN002","Igneous",null,194,2405,null,null]
["Bendeleben","Kfg","Foliated granite","Cretaceous","Foliated granite; Leucocratic syenogranite, locally monzogranite",null,null,"BN002","Igneous",null,195,2600,null,null]
["Bendeleben","Kgu","Granitic rocks, undivided","Cretaceous","Granitic rocks, undivided",null,null,"BN002","Igneous",null,196,2410,null,50017]
["Teller","Qc","Cover","Holocene","Tundra; shown only where it completely mantles bedrock.",null,null,"TE002","Unconsolidated",null,1,100,1000,50001]
["Teller","Qal","Alluvium","Holocene",null,null,null,"TE002","Unconsolidated",null,2,105,1050,null]
["Teller","Qb","Beach deposits","Holocene","Includes spits, offshore bars, and lagoonal deposits.",null,null,"TE002","Unconsolidated",null,3,115,1150,null]
["Teller","Qs","Silt","Pleistocene","Includes loess and fine-grained sediment near steams and over coastal terrace.  Generally covered by tundra but numerous exposures in thaw lakes.",null,null,"TE002","Unconsolidated",null,4,121,1210,null]
["Teller","Qss","Silt and sand","Pleistocene","Stratified deposits related to changes of base level (Imuruk Basin only).  Generally covered by tundra but numerous exposures in thaw lakes.",null,null,"TE002","Unconsolidated",null,5,122,1220,null]
["Teller","Qm","Moraine deposit","Pleistocene","Moraine deposit",null,null,"TE002","Unconsolidated",null,6,125,1250,null]
["Teller","Qo","Outwash","Quaternary, Pleistocene","Outwash",null,null,"TE002","Unconsolidated",null,7,140,1400,null]
["Teller","Qtr","Terrace gravels","Pleistocene","Terrace gravels",null,null,"TE002","Unconsolidated",null,8,110,1100,null]
["Teller","Qf","Alluvial-fan deposits","Pleistocene","Large fans on marine terrace of Sangamon age.",null,null,"TE002","Unconsolidated",null,9,106,1060,null]
["Teller","Qyb","Younger beach deposits","Pleistocene","Low-level deposits related to sea level of Sangamon age.",null,null,"TE002","Unconsolidated",null,10,115,1150,null]
["Teller","Qob","Older beach deposits","Pleistocene","High-level deposits related to sea level of an early Sangamon age, or a pre-Sangamon age.",null,null,"TE002","Unconsolidated",null,11,115,1150,null]
["Teller","Qpc","Conglomerate","Pleistocene","Lithified deltaic gravels on the York terrace of Yarmouth(?) age.",null,null,"TE002","Unconsolidated",null,12,195,1950,null]
["Teller","QTb","Basalt","Tertiary or Quaternary","Alkalic basalts, locally nepheline bearing.",null,null,"TE002","Igneous",null,13,350,3500,50012]
["Teller","TKd","Dikes","Cretaceous and Tertiary(?)","Rhyolite, rhyolite porphyry, granite, diabase, and lamprophyre dikes.  Only larger dikes shown.",null,null,"TE002","Igneous",null,14,1601,null,null]
["Teller","TKa","Dikes","Cretaceous and Tertiary(?)","Altered equivalents of rhyolite, rhyolite porphyry, granite, diabase, and lamprophyre dikes.  Only larger dikes shown.",null,null,"TE002","Igneous","ALT",15,1601,null,null]
["Teller","Kg","Granite","Late Cretaceous","Medium to coarse grained, unfoliated biotite granite; includes biotite hornblende granite of King and Little Diomede Islands",null,null,"TE002","Igneous",null,16,2460,null,50024]
["Teller","Kgh","Granite","Late Cretaceous","Hypersthene granite of Fairway Rock.",null,null,"TE002","Igneous",null,17,2460,null,50024]
["Teller","Kgf","Granite","Late Cretaceous","Medium to fine-grained, unfoliated biotite granite; may include biotite-hornblende quartz monzoite",null,null,"TE002","Igneous",null,18,2460,null,50024]
["Teller","Kgn","Granite","Cretaceous","Gneissic or markedly foliated garnet-bearing biotite granite and related rocks.",null,null,"TE002","Igneous",null,19,2410,null,50017]
["Teller","Ml","Limestone, dolomitic limestone, and shale","Mississippian","Intensely deformed medium-dark-gray limestone and marble and interbeds of silicious shale; local chert; sparse fossils.",null,null,"TE002","Sedimentary",null,20,6320,null,null]
["Teller","Dl","Limestone","Devonian","Dark-gray medium-bedded sugary-textured limestone with sparse fossils.",null,null,"TE002","Sedimentary",null,21,6930,null,50005]
["Teller","Sl","Limestone","Middle Silurian","Light-brownish-gray, medium-bedded sparry limestone grading downward to medium- to light-gray medium bedded limestone at base; abundant fossils (Sainsbury, 1996a).",null,null,"TE002","Sedimentary",null,22,6625,null,null]
["Teller","SOdl","Limestone and dolomitic limestone","Late Ordovician and Silurian","Principally meduim- to dark-gray meduim- to thick-bedded sparry limestone, locally includes cherty layers and nodules; weathers to dark-gray, hackly plates with numerous white fossils that are largely silicified; for common fossils see Sainsbury (1969a).",null,null,"TE002","Sedimentary",null,23,7535,null,50059]
["Teller","Oum","Undifferentiated limestone and dolomized limestone","Late and Middle Ordovician","Undifferentiated limestone and dolomized limestone.  West of Don River may include some rocks of Silurian age.",null,null,"TE002","Sedimentary",null,24,7540,null,null]
["Teller","Oshl","Limestone and shale","Middle Ordovician","Dark thin- to meduim-bedded limestone with local chert nodules; weathers to pale orange to pale yellowish brown and forms subdued slopes.  At base contains thin (50-100 feet) unit of fissile black shale and minor interbedded black limestone.  Shale conta","Graptolites",null,"TE002","Sedimentary",null,25,7540,null,null]
["Teller","Oshd","Limestone and shale","Middle Ordovician","Dolomitzed equivalent of Oshl.",null,null,"TE002","Sedimentary",null,26,7541,null,50036]
["Teller","Ol","Limestone and argillaceous limestone","Early Ordovician","Massive to thick-bedded micritic limestone containing interbeds of argillaceous limestone; sparse chert nodules in thick-bedded limstones which are entirely calcitic.  Sparse fossils include cephalopod siphuncles and brachiopods of late Canadian age (Sai","Cephalopod sphuncles, brachiopods, and trilobites",null,"TE002","Sedimentary",null,27,7540,null,50036]
["Teller","Olu","Undifferentiated limestone and argillaceous limestone","Early Ordovician","Undifferentiated limestone and argillaceous limestone",null,null,"TE002","Sedimentary",null,28,7520,null,50035]
["Teller","Oal","Argillaceous limestone and limestone","Early Ordovician","Thin-bedded ruditic argillaceous and silty limestone and dolomite limestone, carbonaceous limestone, and subordinate massive micritic limestone which locally contains chert; abundant ripple marks, swash marks, casts of worm tubes, crossbedding, and limes","Worm tubes",null,"TE002","Sedimentary",null,29,7555,null,50030]
["Teller","Pzl","Limestone","Paleozoic","Intensely deformed limestone of undifferentiated Paleozoic age.",null,null,"TE002","Sedimentary",null,30,5321,null,50032]
["Teller","Pzm","Limestone","Paleozoic","Marbleized equivalent of Pzl.",null,null,"TE002","Metamorphic",null,31,5525,null,50032]
["Teller","OpCl","Limestone, argillaceous limestone, and dolomitic argillaceous limestone","Late Precambrian and earliest Ordovician","Limestone, argillaceous limestone, and dolomitic argillaceous limestone of undifferentiated late Precambrian and earliest Ordovician age.",null,null,"TE002","Sedimentary",null,32,7565,null,50037]
["Teller","pCl","Limestone","Late Precambrian","Thin-bedded, rhythmically interbedded dolomitic limestone and argillaceous limestone.",null,null,"TE002","Sedimentary",null,33,7565,null,50037]
["Teller","pCld","Limestone","Late Precambrian","Large areas of dolomitized pCl; probably near a thrust fault.",null,null,"TE002","Sedimentary",null,34,7565,null,50037]
["Teller","pCt","Limestone","Late Precambrian","Metmorphosed equivalent of pCl converted to tactite.",null,null,"TE002","Metamorphic","HFS",35,7565,null,50037]
["Teller","pCg","Gabbro","Late Precambrian","Includes coarse-grained gabbro, diabase and altered equivalents which locally are garnet-glaucophane rocks.  Of two ages (see accompanying text).",null,null,"TE002","Igneous",null,36,9410,null,50010]
["Teller","pCs","Slate of the York region","Late Precambrian","Slightly to moderately metamorphosed graphitic siltite, slate, graywacke, and calcareous siltite.",null,null,"TE002","Metamorphic",null,37,7576,null,50038]
["Teller","pCsg","Slate of the York region","Late Precambrian","Green-weathering chloritic graphitic siltite (pCs) near mafic intrusives.",null,null,"TE002","Metamorphic","HFS",38,7576,null,50038]
["Teller","pCn","Nome Group","Late Precambrian","Nome Group undifferentiated; chloritic schists and marble schists.",null,null,"TE002","Metamorphic",null,39,9425,null,null]
["Teller","pCnc","Nome Group","Late Precambrian","Chlorite-epidote-amphibole schists, intensely deformed, locally graphitic; retograded blueschist facies rocks locally (Sainsbury, Coleman, and Kachadoorian, 1970); subordinate schistose limestone.",null,null,"TE002","Metamorphic",null,40,9426,null,null]
["Teller","pCnl","Nome Group","Late Precambrian","Dark schistose limestone intercalated with subordinate chloritic schist.",null,null,"TE002","Metamorphic",null,41,9427,null,null]
["Teller","pCmu","Kigluaik Group","Precambrian","Metamorphic rocks undifferentiated.",null,null,"TE002","Metamorphic",null,42,9430,null,null]
["Teller","pCgn","Orthogneiss","Precambrian","Biotite-quartz-orthoclase gneiss; locally includes small areas of undifferentiated metamorphic rocks (pCmu).",null,null,"TE002","Metamorphic",null,43,9470,null,50065]
["Teller","pCb","Tigaraha Schist","Precambrian","Biotite-garnet schist; near granite (Kgn, Kgf) contains andalusite.",null,null,"TE002","Metamorphic",null,44,9460,null,null]
["Teller","pCbm","Tigaraha Schist","Precambrian","Marble and calc-silicate rocks intercalated in schist (pCb).",null,null,"TE002","Metamorphic",null,45,9461,null,null]
["Teller","pCgu","Upper gneiss","preCambrian","Biotite-hornblende-quartz-plagioclase paragneiss.",null,null,"TE002","Metamorphic",null,46,9480,null,null]
["Teller","pCm","Marble","Precambrian","Coarse-grained marble, locally contains mica and either olivine or monticellite; at places converted to brown-weathering tactite.",null,null,"TE002","Metamorphic",null,47,9450,null,null]
["Teller","pCgl","Lower gneiss","Precambrian","Quartz-biotite-plagioclase-hornblende paragneiss and local calc-silicate rock.",null,null,"TE002","Metamorphic",null,48,9490,null,null]
["Candle","MzPzq","Quartzite-metachert, carbonate rocks, phyllite","Mesozoic? and Paleozoic?","Interbedded white to light-gray banded quartzite, dark phyllite, and gray laminated limestone. Thin sections show the quartzite to be composed of as much as 99 percent interlocking quartz grains.  Thin layers of white mica folia give the quartzite a fain","In the Nulato quadrangle the limestone is partly recrystallyzed and silicified and locally contains unidentifiable coral and crinoid fragments.  In the Melozitna quadrangle, thin marble beds contain conodonts and crinoids of Devonian age",null,"CA003","Metamorphic",null,801,5542,null,null]
["Selawik","Kcc","Nonmarine and marine carbonate-rich conglomerate and sandstone deltaic deposits","Late and Early Cretaceous","Poorly sorted nonmarine and shallow-water shelf deposits consisting  of carbonate-rich conglomerate (calcirudite), sandstone (calcarenite), and shale (calcilutite).  Unit contains abundant plant debris and thin seams of bituminous coal.  Clast-supported",null,null,"SE004","Sedimentary",null,3005,1822,null,null]
["Selawik","Kcvg","Carbonate and volcanic clast graywacke and mudstone","late Early Cretaceous (Albian)","Cyclically interbedded fine- to coarse-grained highly calcareous graywacke; hard, fine- to medium-grained, carbonaceous, volcanic graywacke; and dark carbonaceous mudstone.  Graywacke is typically graded and sole-marked. Carbonized plant debris is abunda","Shallow-water marine mollusks locally abundant but poorly preserved, probably of Early Cretaceous (Albian) age.",null,"SE004","Sedimentary",null,3004,1820,null,null]
["Candle","Kgr","Granitic rocks","Cretaceous","Granitic rocks of hornblende and pyroxene monzonite and syenite.  Minor biotite quartz monzonite.  Unit subdivided by Patton (1999, 2000)",null,"lead-alpha age of 90 +/- 10 m.y. and 100 +/- 15 m.y.  K/Ar age of 102 +/- 5 m.y. and K/Ar age of 100 +/- 5 m.y.","CA003","Igneous",null,700,2530,null,50018]
["Candle","Knsy","Granitic rocks","Cretaceous","Granitic rocks of hornblende and pyroxene monzonite and syenite.  Minor biotite quartz monzonite.  Unit subdivided by Patton (1999, 2000)",null,"lead-alpha age of 90 +/- 10 m.y. and 100 +/- 15 m.y.  K/Ar age of 102 +/- 5 m.y. and K/Ar age of 100 +/- 5 m.y.","CA003","Igneous",null,701,2545,null,50054]
["Candle","Ksy","Granitic rocks","Cretaceous","Granitic rocks of hornblende and pyroxene monzonite and syenite.  Minor biotite quartz monzonite.  Unit subdivided by Patton (1999, 2000)",null,"lead-alpha age of 90 +/- 10 m.y. and 100 +/- 15 m.y.  K/Ar age of 102 +/- 5 m.y. and K/Ar age of 100 +/- 5 m.y.","CA003","Igneous",null,703,2545,null,50054]
["Selawik","Knc","Nonmarine conglomerate, sandstone, mudstone, and coal","Late Cretaceous","Conglomerate composed chiefly of well-sorted white quartz pebbles in quartzose and micaceous matrix; also has pebbles of phyllite, schist, greenstone, and chert in subordinate amounts.  Interbedded quartzose and micaceous sandstone and mudstone.","Abundant well-preserved plant fossils of probable Cretaceous age","Age based on correlative rocks in the Baird Mtns.and Selawik quadrangles dated by K-Ar.","SE003","Sedimentary",null,201,1990,null,null]
["Selawik","Knc","Nonmarine conglomerate, sandstone, mudstone, and coal","Late Cretaceous","Conglomerate composed chiefly of well-sorted white quartz pebbles in quartzose and micaceous matrix; also has pebbles of phyllite, schist, greenstone, and chert in subordinate amounts.  Interbedded quartzose and micaceous sandstone and mudstone.","Abundant well-preserved plant fossils of probable Cretaceous age","Age based on correlative rocks in the Baird Mtns.and Selawik quadrangles dated by K-Ar.","SE004","Sedimentary",null,3007,1990,null,null]
["Selawik","Kmc","Igneous pebble-cobble conglomerate","late Early Cretaceous (Albian)","Massive poorly stratified and poorly sorted conglomerate composed of pebble- to cobble-sized clasts of mafic extrusive and intrusive rocks in a graywacke and mudstone matrix.","Contains marine mollusks of Early Cretaceous(?) age in the Selawik quadrangle",null,"SE004","Sedimentary",null,3006,2030,null,null]
["Selawik","TKi","Felsic hypabyssal and extrusive rocks","Cretaceous(?)","Small widely scattered bodies of fine-grained intrusive and extrusive rocks including soda rhyolite, quartz latite porphyry, sanidine trachyte, and quartz diorite.  Some welded tuff at eastern end of Selawik Hills.",null,null,"SE004","Igneous",null,3010,1602,null,null]
["Selawik","PzZu","Schist and phyllite","middle Paleozoic","Chiefly light- to dark-gray fine-grained quartz-mica schist and grayish-black phyllite.  Subordinate calcareous schist, limestone, chlorite schist, and amphibolite schist.  May locally include metasedimentary rocks of middle Cretaceous age.  Subdivison a",null,null,"SE004","Metamorphic",null,3000,7467,null,50006]
["Selawik","MzPzma","Metabasite","Mesozoic or Paleozoic","Varies from thinly layered greenschist to more massively layered greenstone bodies representing altered mafic and intermediate volcanic and  shallow intrusive rocks. The characteristic minerals are chlorite, albite, actinolite, and epidote.  Unit may inc",null,null,"SE004","Metamorphic",null,3008,5241,null,null]
["Selawik","Jv","Altered mafic volcanic rocks","Mesozoic or Paleozoic","Dark-greenish gray altered basalt and diabase; commonly altered or partially altered to aggregate of chlorite, epidote, and sodic plagioclase.  Separated from rest of unit; occurs only in southwest part of quadrangle.",null,null,"SE002","Metamorphic",null,3011,5243,null,null]
["Selawik","Pzl","Limestone","middle Paleozoic","Light-gray, recrystallized, limestone and dolomite containing minor intercalated phyllite and mica schist. Seward terrane, southwest part of quadrangle",null,null,"SE002","Metamorphic",null,301,5320,null,null]
["Solomon","Qbm","Modern beach deposits","Holocene","Modern beach deposits",null,null,"SO002","Unconsolidated",null,110,115,1150,null]
["Solomon","Qs","Silt and peat","Quaternary","Silt and peat",null,null,"SO002","Unconsolidated",null,113,122,1220,null]
["Solomon","Qlt","Lake terrace deposits","Pleistocene","Lake terrace deposits",null,null,"SO002","Unconsolidated",null,114,110,1100,null]
["Solomon","Qd","Glacial drift","Late Quaternary","Glacial drift",null,null,"SO002","Unconsolidated",null,115,125,1250,null]
["Solomon","Qc","Silty colluvium, undivided","Quaternary","Silty colluvium, undivided; includes slope deposits, glacial deposits highly modified by weathering, and volcanic rocks covered by a thick mantle of silt",null,null,"SO002","Unconsolidated",null,116,107,1070,null]
["Solomon","Qal","Alluvium, undivided","Quaternary","Alluvium, undivided",null,null,"SO002","Unconsolidated",null,117,105,1050,null]
["Solomon","Qv","Volcanic rocks, undivided","Quaternary","Basalt and basaltic andesite flows and associated vent deposits slightly to strongly fragmented by frost riving and locally overlain by windblown silt",null,null,"SO002","Igneous",null,126,350,3500,50012]
["Solomon","Ddm","Dolostone and marble","Devonian","Black to dark gray dolostone and marble with relict sedimentary structures and megafossils","\"megafossils\"",null,"SO002","Metamorphic",null,135,7461,null,50004]
["Solomon","Od","Dolostone","Ordovician","Pink to light gray weathering, gray to tan fine-grained dolostone with distinct color mottling",null,null,"SO002","Sedimentary",null,137,7540,null,50042]
["Solomon","DCks","Calc-schist","Devonian through Cambrian","Medium-grained calc schist interlayered with DObm and DCbm",null,null,"SO002","Sedimentary",null,141,7466,null,50034]
["Solomon","Oim","Impure chlorite marble","Ordovician","Buff to orange weathering impure marble characterized by lenses and layers of chlorite-albite schist",null,null,"SO002","Sedimentary",null,142,7750,null,50043]
["Solomon","Ocs","Casadepaga schist","Ordovician","Light green and greenish-brown mafic- and calcareous-rich schist",null,null,"SO002","Metamorphic",null,143,7720,null,50053]
["Solomon","OCx","Mixed unit","Ordovician, Cambrian","Interlayered pure and impure marble, quartz-graphite schist, and lesser pelite, calc-schist, and mafic schist",null,null,"SO002","Metamorphic",null,144,7700,null,null]
["Solomon","CpCs","Solomon schist","Cambrian, preCambrian","Solomon schist; Tors of resistant, well-foliated quartz-rich pelitic schist, locally containing chloritoid, glaucophane and garnet; minor calc-schist",null,null,"SO002","Metamorphic",null,145,7463,null,null]
["Solomon","Pzm","Marble, undivided","Paleozoic","Marble, undivided",null,null,"SO002","Metamorphic",null,148,5651,null,50045]
["Solomon","Pzd","Dolostone, undivided","Paleozoic","Dolostone, undivided",null,null,"SO002","Sedimentary",null,149,5652,null,null]
["Solomon","Pzg","Granitic orthogneiss","Paleozoic","Granitic orthogneiss",null,null,"SO002","Metamorphic",null,151,7250,null,null]
["Solomon","Oimh","Impure marble","Ordovician","Orange-weathering, well-foliated marble; upgraded equivalent of the impure chlorite marble unit (Oim); above biotite grade",null,null,"SO002","Metamorphic",null,155,7751,null,null]
["Solomon","Ocsh","Calcareous and mafic schist","Ordovician","Brown to green weathering mafic, calcareous, and feldspathic schist; above biotite grade; upgraded equivalent of Casadepaga schist (Ocs)",null,null,"SO002","Metamorphic",null,156,7721,null,null]
["Solomon","PzpCsh","High-grade schist, undivided","Paleozoic to Precambrian","Metasedimentary and metaigneous schist and gneiss above biotite grade; contains rocks which may be equivalent to units described above",null,null,"SO002","Metamorphic",null,159,8860,null,null]
["Solomon","PzpCm","High-grade marble, undivided","Paleozoic to Precambrian","Light-gray weathering coarse-grained pure and impure marble",null,null,"SO002","Metamorphic",null,160,12600,null,null]
["Solomon","PzpCg","Migmatite","Paleozoic to Precambrian","Migmatite",null,null,"SO002","Metamorphic",null,161,12950,null,null]
["Solomon","PzpCo","Orthogneiss","Paleozoic to Precambrian","Orthogneiss",null,null,"SO002","Metamorphic",null,164,9470,null,50065]
["Solomon","TKs","Sandstone","Tertiary, Cretaceous","Rocks of the Kugruk fault zone; Siltstone, sandstone, and pebbly sandstone with locally abundant coal seams",null,null,"SO002","Sedimentary",null,165,1520,null,50013]
["Solomon","TKc","Conglomerate","Tertiary, Cretaceous","Rocks of the Kugruk fault zone; Conglomerate composed predominantly of carbonate and mafic clasts",null,null,"SO002","Sedimentary",null,166,1520,null,50013]
["Solomon","MzPzm","Mylonitic metabasite","Mesozoic, Paleozoic","Rocks of the Kugruk fault zone; Fine-grained, medium bluish-gray metabasite with fine, laminar foliation and rounded, light-green clinopyroxene grains; contains blue amphibole and lawsonite where exposed in the Bendeleben quadrangle",null,null,"SO002","Tectonite",null,167,4990,null,50027]
["Solomon","MzPzs","Serpentinite","Mesozoic, Paleozoic","Serpentinite",null,null,"SO002","Metamorphic",null,169,5190,null,null]
["Solomon","Kd","Darby pluton","Cretaceous","Darby pluton, monzogranite, locally granodiorite",null,"94 Ma K-Ar in biotite and hornblende","SO002","Igneous",null,186,2491,null,50019]
["Solomon","Kgu","Granitic rocks, undivided","Cretaceous","Granitic rocks, undivided",null,null,"SO002","Igneous",null,196,2410,null,null]
["Solomon","Kad","Alkaline dikes","Cretaceous","Alkaline dikes; Nepheline syenite and pseudoleucite porphyry [Digitized as arcs]",null,"96.3 +/- 3 Ma K-Ar","SO002","Igneous",null,193,2497,null,null]
["Bendeleben","Qs","Silt and peat","Quaternary","Silt and peat",null,null,"BN004","Unconsolidated",null,300,122,1220,null]
["Bendeleben","Qc","Silty colluvium, undivided","Quaternary","Silty colluvium, undivided; includes slope deposits, glacial deposits highly modified by weathering, and volcanic rocks covered by a thick mantle of silt",null,null,"BN004","Unconsolidated",null,301,107,null,null]
["Bendeleben","QTv","Volcanic rocks, undivided","Quaternary and Tertiary","Volcanic rocks, undivided; Basalt and basaltic andesitic flows and associated vent deposits thoroughly fragmented by frost action",null,null,"BN004","Igneous",null,302,450,4500,50012]
["Bendeleben","Oim","Impure chlorite marble","Ordovician","Buff to orange weathering impure marble characterized by lenses and layers of chlorite-albite schist",null,null,"BN004","Sedimentary",null,303,7750,null,50043]
["Bendeleben","OCx","Mixed unit","Ordovician, Cambrian","Interlayered pure and impure marble, quartz-graphite schist, and lesser pelite, calc-schist, and mafic schist",null,null,"BN004","Metamorphic",null,304,7467,null,50006]
["Bendeleben","CpCs","Solomon schist","Cambrian, preCambrian","Solomon schist; Tors of resistant, well-foliated quartz-rich pelitic schist, locally containing chloritoid, glaucophane and garnet; minor calc-schist",null,null,"BN004","Metamorphic",null,305,7463,null,50008]
["Bendeleben","PzpCh","High-grade schist, undivided","Paleozoic to Precambrian","Metasedimentary and metaigneous schist and gneiss above biotite grade; contains rocks which may be equivalent to units described above",null,null,"BN004","Metamorphic",null,306,8860,null,50050]
["Bendeleben","Ddm","Dolostone and marble","Devonian","Black to dark gray dolostone and marble with relict sedimentary structures and megafossils","\"megafossils\"",null,"BN004","Metamorphic",null,307,7461,null,50004]
["Bendeleben","TKc","Conglomerate","Tertiary, Cretaceous","Rocks of the Kugruk fault zone; Conglomerate composed predominantly of carbonate and mafic clasts",null,null,"BN004","Sedimentary",null,309,1520,null,50013]
["Bendeleben","PzpCf","Felsic schist","Paleozoic, Precambrian","Felsic schist",null,null,"BN004","Metamorphic",null,310,7261,null,50049]
["Bendeleben","Kgu","Granitic rocks, undivided","Cretaceous","Granitic rocks, undivided",null,null,"BN004","Igneous",null,311,2410,null,50017]
["Bendeleben","TKs","Sandstone","Tertiary, Cretaceous","Rocks of the Kugruk fault zone; Siltstone, sandstone, and pebbly sandstone with locally abundant coal seams",null,null,"BN004","Sedimentary",null,312,1520,null,50013]
["Bendeleben","Pzd","Dolostone, undivided","Paleozoic","Dolostone, undivided",null,null,"BN004","Sedimentary",null,313,5652,null,50041]
["Bendeleben","Pzg","Granitic orthogneiss","Paleozoic","Granitic orthogneiss",null,null,"BN004","Metamorphic",null,314,7250,null,50068]
["Bendeleben","Oc","Casadepaga schist","Ordovician","Light green and greenish-brown mafic- and calcareous-rich schist\rAppears as unit Ocs in source BN002.",null,null,"BN004","Metamorphic",null,315,7720,null,50053]
["Bendeleben","Pzm","Marble, undivided","Paleozoic","Marble, undivided",null,null,"BN004","Metamorphic",null,316,5651,null,50045]
["Bendeleben","MzPzm","Mylonitic metabasite","Mesozoic, Paleozoic","Rocks of the Kugruk fault zone; Fine-grained, medium bluish-gray metabasite with fine, laminar foliation and rounded, light-green clinopyroxene grains; contains blue amphibole and lawsonite where exposed in the Bendeleben quadrangle",null,null,"BN004","Tectonite",null,317,4990,null,50027]
["Bendeleben","Kd","Darby pluton","Cretaceous","Darby pluton, monzogranite, locally granodiorite",null,"94 Ma K-Ar in biotite and horneblende","BN004","Igneous",null,320,2491,null,50019]
["Bendeleben","Kwc","Windy Creek pluton","Cretaceous","Windy Creek pluton; Quartz monzonite",null,null,"BN004","Igneous",null,325,2491,null,50025]
["Bendeleben","Kbg","Bendeleben pluton and Kuzitrin plutons","Cretaceous","Bendeleben pluton; Monzogranite, granodiorite, quartz monzonite, and quartz monzodiorite (Unit Kb in source BN002), Kuzitrin pluton; Monzogranite  (Unit Kkz in source BN002)",null,"81.8 +/- 2 Ma K-Ar in biotite\r93.0 +/- 1.4 Ma K-Ar in biotite","BN004","Igneous",null,326,2490,null,50011]
["Bendeleben","Od","Dolostone","Ordovician","Pink to light gray weathering, gray to tan fine-grained dolostone with distinct color mottling",null,null,"BN004","Sedimentary",null,327,7540,null,50042]
["Bendeleben","MzPzs","Serpentinite","Mesozoic, Paleozoic","Serpentinite",null,null,"BN004","Metamorphic",null,329,5190,null,50027]
["Bendeleben","Sd","Dolostone","Silurian","Light to dark gray fine-grained dolostone",null,null,"BN004","Sedimentary",null,330,6670,null,50058]
["Bendeleben","PzpCm","High-grade marble, undivided","Paleozoic to Precambrian","Light-gray weathering coarse-grained pure and impure marble",null,null,"BN004","Metamorphic",null,331,8861,null,50051]
["Bendeleben","Kfg","Foliated granite","Cretaceous","Foliated granite; Leucocratic syenogranite, locally monzogranite",null,null,"BN004","Metamorphic",null,332,2600,null,null]
["Bendeleben","QTk","Kougarok Gravel","Quaternary, Tertiary","Kougarok Gravel\rUnit QTkg in source BN002",null,null,"BN004","Unconsolidated",null,334,285,null,null]
["Bendeleben","Kog","Oonatut granite","Late Cretaceous","Oonatut granite; Monzogranite and lesser syenogranite",null,"69.2 +/- 2 Ma and 71.2 +/-  Ma K-Ar in biotite","BN004","Igneous",null,335,2460,null,50024]
["Bendeleben","Kng","Stocks","Cretaceous","Asses Ears stock; Monzogranite to syenogranite  (Unit Kae in BN002);\rCrossfox butte stock; Monzogranite to quartz monzonite (Unit Kcb in BN002); Virginia Butte stock; quartz monzonite to syenite  (Unit Kvb in BN002); Nimrod Hill stock; monzonite (Unit Kn",null,"94.8 +/- 1.9 Ma K-Ar in biotite","BN004","Igneous",null,336,2491,null,50022]
["Bendeleben","Kku","Kugruk pluton","Cretaceous","Kugruk pluton; Quartz monzonite to quartz monzodiorite",null,"94.9 +/- 2.9 Ma K-Ar in hornblende","BN004","Igneous",null,337,2491,null,50073]
["Bendeleben","MzPzt","Spruce Creek Tonalite","Mesozoic, Paleozoic","Spruce Creek Tonalite",null,null,"BN004","Igneous",null,338,3470,null,50029]
["Bendeleben","TKv","Felsic volcanics","Tertiary, Cretaceous","Felsic volcanics; sericitized, limonitized tuff, flow, flow-breccia or vent-breccia",null,null,"BN004","Igneous","ALT-SER",339,1625,null,50014]
["Bendeleben","Kpg","Pegmatite","Cretaceous","Pegmatite.  No polygons on map.  Lines have an arc-para2 value of 340.",null,null,"BN004","Igneous",null,340,2405,null,null]
["Bendeleben","Ta","Quartz Latite","Tertiary","Quartz Latite; Light tan to orange weathering dikes, sills and plugs of rhyolitic to andesitic composition.  No polygons on map.  Lines have an arc-para2 value of 341.",null,null,"BN004","Igneous",null,341,1011,null,null]
["Solomon","Qs","Silt and peat","Quaternary","Silt and peat",null,null,"SO004","Unconsolidated",null,300,122,1220,null]
["Solomon","Qc","Silty colluvium, undivided","Quaternary","Silty colluvium, undivided; includes slope deposits, glacial deposits highly modified by weathering, and volcanic rocks covered by a thick mantle of silt",null,null,"SO004","Unconsolidated",null,301,107,1070,null]
["Solomon","Oim","Impure chlorite marble","Ordovician","Buff to orange weathering impure marble characterized by lenses and layers of chlorite-albite schist",null,null,"SO004","Sedimentary",null,303,7750,null,50043]
["Solomon","OCx","Mixed unit","Ordovician, Cambrian","Interlayered pure and impure marble, quartz-graphite schist, and lesser pelite, calc-schist, and mafic schist",null,null,"SO004","Metamorphic",null,304,7467,null,50006]
["Solomon","CpCs","Solomon schist","Cambrian, preCambrian","Solomon schist; Tors of resistant, well-foliated quartz-rich pelitic schist, locally containing chloritoid, glaucophane and garnet; minor calc-schist",null,null,"SO004","Metamorphic",null,305,7463,null,50008]
["Solomon","PzpCh","High-grade schist, undivided","Paleozoic to Precambrian","Metasedimentary and metaigneous schist and gneiss above biotite grade; contains rocks which may be equivalent to units described above",null,null,"SO004","Metamorphic",null,306,8860,null,50050]
["Solomon","Ddm","Dolostone and marble","Devonian","Black to dark gray dolostone and marble with relict sedimentary structures and megafossils","\"megafossils\"",null,"SO004","Metamorphic",null,307,7461,null,50004]
["Solomon","DCks","Calc-schist","Devonian through Cambrian","Medium-grained calc schist interlayered with DObm and DCbm",null,null,"SO004","Sedimentary",null,308,7466,null,50034]
["Solomon","TKc","Conglomerate","Tertiary, Cretaceous","Rocks of the Kugruk fault zone; Conglomerate composed predominantly of carbonate and mafic clasts",null,null,"SO004","Sedimentary",null,309,1520,null,50013]
["Solomon","Kgu","Granitic rocks, undivided","Cretaceous","Granitic rocks, undivided",null,null,"SO004","Igneous",null,311,2410,null,50017]
["Solomon","Pzd","Dolostone, undivided","Paleozoic","Dolostone, undivided",null,null,"SO004","Sedimentary",null,313,7540,null,50042]
["Solomon","Pzg","Granitic orthogneiss","Paleozoic","Granitic orthogneiss",null,null,"SO004","Metamorphic",null,314,9470,null,50064]
["Solomon","Oc","Casadepaga schist","Ordovician","Light green and greenish-brown mafic- and calcareous-rich schist\rAppears as unit Ocs in source BN002.",null,null,"SO004","Metamorphic",null,315,7720,null,50053]
["Solomon","Pzm","Marble, undivided","Paleozoic","Marble, undivided",null,null,"SO004","Metamorphic",null,316,5651,null,50045]
["Solomon","MzPzm","Mylonitic metabasite","Mesozoic, Paleozoic","Rocks of the Kugruk fault zone; Fine-grained, medium bluish-gray metabasite with fine, laminar foliation and rounded, light-green clinopyroxene grains; contains blue amphibole and lawsonite where exposed in the Bendeleben quadrangle",null,null,"SO004","Metamorphic",null,317,4990,null,50027]
["Solomon","Kkd","Diorite","Cretaceous","Hybrid diorite of Kachauik pluton",null,null,"SO004","Igneous",null,318,2496,null,50021]
["Solomon","Kkms","Monzonite-syenite","Cretaceous","Monzonite-syenite phase of the Kachauik pluton",null,"99.3 +/- 3 Ma K-Ar in horneblende","SO004","Igneous",null,319,2491,null,50071]
["Solomon","Kd","Darby pluton","Cretaceous","Darby pluton, monzogranite, locally granodiorite",null,"94 Ma K-Ar in biotite and horneblende","SO004","Igneous",null,320,2491,null,50019]
["Solomon","DCbm","Black marble","Devonian through Cambrian","Black to dark gray marble and subordinate impure fissile marble; may show rhythmic alteration of purer, coarse crystalline marble and more impure, fine crystalline layers; mafic dikes and plugs common",null,null,"SO004","Sedimentary",null,321,7465,null,50002]
["Solomon","Kkg","Granodiorite","Cretaceous","Granodiorite to quartz monzonite phase of the Kachauik pluton",null,null,"SO004","Igneous",null,322,2492,null,50020]
["Solomon","Kkgm","Gneissic monzonite","Cretaceous","Gneissic monzonite of the Kachauik pluton",null,null,"SO004","Igneous",null,323,2610,null,50028]
["Solomon","Kdc","Dry Canyon stock","Cretaceous","Dry Canyon stock; Nepheline syenite",null,"108 +/- 3 Ma K-Ar in hornblende","SO004","Igneous",null,324,2535,null,50072]
["Solomon","Od","Dolostone","Ordovician","Pink to light gray weathering, gray to tan fine-grained dolostone with distinct color mottling",null,null,"SO004","Sedimentary",null,327,7540,null,50042]
["Solomon","Cd","Dolostone and marble","Cambrian","Light or medium gray to pinkish orange dolostone which weathers gray to orange; may contain a few percent quartz and white mica",null,null,"SO004","Sedimentary",null,333,8360,null,50000]
["Solomon","Ta","Quartz Latite","Tertiary","Quartz Latite; Light tan to orange weathering dikes, sills and plugs of rhyolitic to andesitic composition.  No polygons on map.  Lines have an arc-para2 value of 341.",null,null,"SO004","Igneous",null,341,1011,null,null]
["Solomon","Kad","Alkaline dikes","Cretaceous","Alkaline dikes; Nepheline syenite and pseudoleucite porphyry\rNo polygons on map.  Lines have an arc-para2 value of 342.",null,"96.3 +/- 3 Ma K-Ar","SO004","Igneous",null,342,2497,null,null]
["Selawik","Qs","Chiefly sand deposits","Quaternary","Modified and dissected deposits of wind-blown and water-laid sand with subordinate amounts of silt",null,null,"SE004","Unconsolidated",null,402,120,1200,null]
["Selawik","Khe","Felsic hypabyssal and extrusive rocks","Cretaceous(?)","Small widely scattered bodies of fine-grained intrusive and extrusive rocks including soda rhyolite, quartz latite porphyry, sanidine trachyte, and quartz diorite.  Some welded tuff at eastern end of Selawik Hills.",null,null,"SE004","Igneous",null,3010,1602,null,null]
["Selawik","Kmc","Igneous pebble-cobble conglomerate","late Early Cretaceous (Albian)","Massive poorly stratified and poorly sorted conglomerate composed of pebble- to cobble-sized clasts of mafic extrusive and intrusive rocks in a graywacke and mudstone matrix.","Contains marine mollusks of Early Cretaceous(?) age in the Selawik quadrangle",null,"SE004","Sedimentary",null,3006,2030,null,null]
["Selawik","Kgr","Quartz monzonite and alaskite","Early Cretaceous","Chiefly leucocratic, fine- to medium-grained cataclastic-textured, monzonite and alaskite",null,"K-Ar age of 99 Ma","SE004","Igneous",null,750,2530,null,null]
["Selawik","Pzca","Carbonate rocks","Early Paleozoic","Ranges from light gray to white partly recrystallized limestone  to coarsely crystalline marble. Dark finely crystalline dolomitic marble.  Interbedded calc schist, chloritic schist, and quartzite in subordinate amounts.  Unit ranges in age from Ordovici","Contains scattered fossils, chiefly conodonts, from map area and from exposures of the unit in contiguous parts of the Arctic Alaska terrane north of the map area",null,"SE004","Sedimentary",null,3003,5525,null,null]
["Selawik","PzZsa","Pelitic schist, calc schist, and quartzite","Paleozoic and Proterozoic","Quartz-mica schist and lesser amounts of calc schist, quartzite, graphitic  schist, chlorite schist, and quarto-feldspathic schist. Polydeformed greenschist-blueschist-facies characterized by quartz-muscovite-chlorite-albite±glaucophane assemblages. A re",null,"K/Ar isotopic analyses of the schist yielded Early Cretaceous metamorphic mineral cooling ages","SE004","Metamorphic",null,3001,8602,null,null]
["Selawik","PzZua","Pelitic schist, calc schist, and quartzite (PzZsa) and carbonate rocks (Pzca), undivided","Paleozoic and Proterozoic","Pelitic schist, calc schist, and quartzite (PzZsa) and carbonate rocks (Pzca), undivided",null,null,"SE004","Metamorphic",null,3020,8605,null,null]
["Selawik","Ts","Gravel and sand","Tertiary","A small cutbank exposure of moderately dipping gravel and sand at north edge of Selawik Hills on eastern tributary of Mangoak River.  Composed chiefly of poorly sorted granitic rock detritus that appears to have been derived from nearby granitic rocks",null,null,"SE002","Sedimentary",null,1320,640,null,null]
["Selawik","Qua","Alluvial, colluvial, glacial, and windblown terrace and slope deposits, undivided","Holocene and Pleistocene","Chiefly  silt and very fine sand including thick deposits of micaeous silt in the Koyukuk Flats and Nowitna and Innoko Lowlands.  Local deposits of alluvial fan and glacial outwash gravels",null,null,"SE004","Unconsolidated",null,400,100,1000,50001]
["Selawik","Qua","Alluvial, colluvial, glacial, and windblown  terrace and slope deposits, undivided","Holocene and Pleistocene","Chiefly silt and very fine sand including thick deposits of micaeous silt in the Koyukuk Flats and Nowitna and Innoko Lowlands.  Local deposits of alluvial fan and glacial outwash gravels",null,null,"SE004","Unconsolidated",null,401,110,1100,null]
["Candle","Qua","Alluvial, colluvial, glacial, and windblown  terrace and slope deposits, undivided","Holocene and Pleistocene","Chiefly  silt and very fine sand including thick deposits of micaeous silt in the Koyukuk Flats and Nowitna and Innoko Lowlands.  Local deposits of alluvial fan and glacial outwash gravels.",null,null,"CA003","Unconsolidated",null,3150,110,null,null]
["Candle","QTb","Basalt flows","Pleistocene and Pliocene","Vesicular tholeiitic and alkali basalt flows. In Candle and Selawik quadrangles unit includes several alkali basalt cones and flows that contain abundant peridotite inclusions.",null,"K/Ar isotopic cooling ages from the volcanic field in western part of Unalakleet quadrangle range  from 3.25 Ma to 1.39 Ma.","CA003","Igneous",null,500,350,null,50012]
["Candle","Kcg","Carbonate-clast graywacke and mudstone","Cretaceous","Fine-grained to gritty graywacke and laminated micaceous mudstone turbidite deposits composed largely of carbonate detritus and lesser amounts of quartz, chert, volcanic rock, and mica clasts.  Contains abundant carbonized plant debris. The mudstone inte","A single collection of palynomorphs from the Norton Bay quadrangle is Cretaceous in age, possibly late Early or early Late Cretaceous (Albian or Cenomanian).",null,"CA003","Sedimentary",null,3230,1821,null,null]
["Candle","MzPzum","Mafic-ultramfic complexes","Mesozoic and Paleozoic?","The complexes consist of: 1) a cumulate magmatic suite composed of interlayered dunite, wehrlite, olivine clinopyroxenite, and gabbro, 2) a mantle suite composed of harzburgite, dunite, and minor clinopyoxenite, and 3) a metamorphic sole consisting of a",null,"K/Ar isotopic cooling ages from the magmatic suite average 159 Ma and two 40Ar/39Ar determinations yielded a plateau age of 162 Ma.  K/Ar isotopic cooling ages from the metamorphic sole at the base of the complexes range from 172 to 155 Ma and one 40Ar /","CA003","Igneous",null,802,5150,null,null]
["Norton Bay","Qf","Flood-plain and tidal flats deposits","Holocene","Gravel, sand, silt, and peat. Floodplain deposits in Koyukuk Flats and along Yukon River composed mainly of light gray micaceous silt",null,null,"NR003","Unconsolidated",null,9,105,1050,null]
["Norton Bay","Kcc","Conglomerate facies -- Carbonate-clast conglomerate, sandstone, and shale","Late and Early Cretaceous","Poorly sorted nonmarine and shallow-water shelf deposits consisting  of carbonate-rich conglomerate (calcirudite), sandstone (calcarenite), and shale (calcilutite).  Unit contains abundant plant debris and thin seams of bituminous coal.  Clast-supported",null,null,"NR002","Sedimentary",null,726,1822,null,null]
["Nome","Qa","Floodplain alluvium","Holocene","Elongate deposits of pebble-cobble gravel and sand with few to numerous boulders beneath modern floodplains; well sorted wand medium to thick bedded, locally crosssbedded; surface smooth, except for local low scarps",null,null,"NM002","Unconsolidated",null,105,105,1050,null]
["Nome","Qaf","Alluvial-fan deposits","Quaternary","Fan shaped, heterogeneous mixtures of pebble-cobble gravel, sand and silt with few to numerous, subangular to subrounded boulders, especially in proximal areas; may include deposits of slushflows and debris flows in proximal areas; thick to thin bedded;",null,null,"NM002","Unconsolidated",null,106,106,1060,null]
["Nome","Qat","Terrace alluvium","Quaternary","Elongate deposits of pebble-cobble gravel and sand with trace to some silt and few to numerous boulders comprising stream terraces bordering modern floodplains; includes strath terraces; higher, older terraces are covered with up to 1 m of undifferentiat",null,null,"NM002","Unconsolidated",null,107,110,1100,null]
["Nome","Qc","Undifferentiated colluvium","Quaternary","Irregular, heterogeneous blankets, aprons, and fans of angular to subanglular rock fragments, gravel, sand, and silt up to estimated 3 m thick that are left on slopes, slope bases, or high-level surfaces by residual weathering and complex mass-movement p",null,null,"NM002","Unconsolidated",null,108,107,1070,null]
["Nome","Qca","Snow-avalanche debris","Quaternary","Tongue-shaped, heterogeneous mixture gravel, sand, and silt deposited at the mouths of bedrock couliers by snow avalanche; surface typically covered with numerous boulders\rNo polygons could be found on the map.",null,null,"NM002","Unconsolidated",null,109,108,1080,null]
["Nome","Qcd","Debris-flow deposits","Quaternary","Fan- and cone-shaped, heterogeneous mixtures of sand and silt with some gravel and few to numerous angular rock fragments deposited at the mouths of gullies and on lower slopes by debris flows; surface has numerous discontinuous channels and numerous sub",null,null,"NM002","Unconsolidated",null,110,108,1080,null]
["Nome","Qcf","Undifferentiated colluvium and alluvium","Quaternary","Fan- and tongue-shaped and elongate, heterogeneous mixtures of subangular rock fragments and pebble-cobble gravel with some sand and silt deposited in upper stream courses; surface smooth to covered with numerous boulders, except for local low scarps and",null,null,"NM002","Unconsolidated",null,111,100,null,null]
["Nome","Qcl","Landslide deposit","Quaternary","Oval to tongue-shaped, heterogeneous mixtures of fractured bedrock, pebble-cobble gravel with trace to some sand and silt deposited by near-surface flowing and sliding due to instability of failed bedrock and unconsolidated surficial deposits; surface sl",null,null,"NM002","Unconsolidated",null,112,108,1080,null]
["Nome","Qcp","Protalus rampart deposits","Quaternary","Arcuate ridges of angular fragments of local bedrock and pebble-cobble gravel with trace to some sand and silt; surface littered with rock fragments",null,null,"NM002","Unconsolidated",null,113,107,1070,null]
["Nome","Qct","Talus","Quaternary","Cone- and apron shaped, heterogeneous mixtures of angular rock fragments with trace to some gravel, snad and sitl deposited at mouths of steep bedrock couliers; surface steep, slightly irregular, and covered with numerous angular rock fragments, expecial",null,null,"NM002","Unconsolidated",null,114,107,1071,null]
["Nome","Qd4","Unmodified drift of Salmon Lake Glaciation","Pleistocene","Heterogeneous blankets of pebble-cobble gravel with some sand and trace to some silt and few to numerous subangular to subrounded boulders of Kigluaik Mountains lithologies deposited directly from glacial ice; includes glaciolacustrine silt and clay with",null,null,"NM002","Unconsolidated",null,115,135,1350,null]
["Nome","Qd3","Slightly modified drift of Stewart River Glaciation","Pleistocene","Heterogeneous blankets of pebble cobble gravel with some sand and trace to some silt and few to numerous subangular to subrounded boulders of Kigluailk Mountains lithologies deposited directly from glacial ice and slightly reworked by mass-movement proce",null,null,"NM002","Unconsolidated",null,116,190,1900,null]
["Nome","Qd2","Modified drift of Nome River Glaciation","Pleistocene","Heterogeneous blankets of pebble-cobble gravel with trace to some snad and silt and few to numerous subangular to subrounded boulders deposited directly from glacial ice and reworked by mass-movement processes; generally massive bedded",null,null,"NM002","Unconsolidated",null,117,200,2000,null]
["Nome","Qd1","Greatly modified drift of Sinuk Glaciation","Pleistocene","Heterogeneous blankets of pebble-cobble gravel with trace to some sand and silt and few to numerous subangular to subrounded boulders deposited directly from glacial ice and greatly modified by mass-movement processes; massive bedded",null,null,"NM002","Unconsolidated",null,118,200,2000,null]
["Nome","Qo4","Outwash of Salmon Lake Glaciation","Pleistocene","Elongate and fan-shaped deposits of well-sorted pebble-cobble gravel with trace to some medium to coarse sand and trace silt deposited by proglacial meltwater streams; medium to thick bedded, locally crossbedded",null,null,"NM002","Unconsolidated",null,119,140,1400,null]
["Nome","Qo2","Ice-marginal deposits of Nome River Glaciation","Pleistocene","Elongated deposites of well-sorted pebble-cobble gravel with trace to some medium to coarse sand and few to numerous subangular to subrounded boulders deposited by meltwater stream in ice-marginal channel just south of Rocky Mountain Creek on lower easte",null,null,"NM002","Unconsolidated",null,120,210,2100,null]
["Nome","Qes","Dune sand","Holocene","Homogeneous blankets of well-sorted snad deposited by wind in the vicinity of Hazel Creek in lower Nome River valley; thin to medium bedded",null,null,"NM002","Unconsolidated",null,121,120,1200,null]
["Nome","Qmb","Beach deposits","Holocene","Elongate deposits of well-sorted medium to coarse sand and shingled pebble gravel deposited and extensively reworked by wave action; locally fossiliferous and auriferous and mined for placer gold; fine to medium bedded, locally crossbedded",null,null,"NM002","Unconsolidated",null,122,115,1150,null]
["Nome","Qme","Estuarine deposits","Holocene","Elongate to blanket deposits of silt with trace to some clay and ifne to medium sand deposited in estuarine reaches of tidewater streams; overlain by 1 to 2 m of surface peat; laminated to thick bedded",null,null,"NM002","Unconsolidated",null,123,116,1160,null]
["Nome","Qmt","Terrace deposits of Pelukian Transgression","Upper Pleistocene","Blankets of marine gravel, sand, and silt overlain by variable thicknesses of peat and reworked in upper part during thaw-lake cycles; perennially frozen and ice rich; complexly bedded",null,null,"NM002","Unconsolidated",null,124,117,1170,null]
["Nome","Qs","Undifferentiated swamp deposits","Upper Pleistocene and Holocene","Elongate to blanket deposits of peat, organic silt, and organic sand accumulated as surface deposits downslope of springs and seeps, in former stream channels, or in thaw-pond and thaw-lake basins; saturated and discontinuously to continuously frozen, lo",null,null,"NM002","Unconsolidated",null,125,113,1130,null]
["Nome","Qh","Primarily placer-mine tailings","Holocene","Water-washed pebble-cobble gravel with trace to some sand; moderate to well sorted",null,null,"NM002","Unconsolidated",null,126,295,2950,null]
["Nome","pCPzmsb","Interbedded marble, schist and metabasite sills, Casadepaga Schist (?)","Precambrian to Paleozoic","Heterogeneous, well stratified, sequence composed of: chlorite rich, locally calcareous muscovite schist; graphitic muscovite, chlorite, quartzo-feldspathic schist; tremolite bearing marble; and garnet, glaucophane bearing, actinolite rich metabasite.  G",null,null,"NM002","Metamorphic",null,127,7720,null,50053]
["Nome","pCPztcb","Calcareous porphyroblastic schist, Casadepaga Schist (?)","Precambrian to Paleozoic","Calcareous, albite, chlorite (pennine) schist with minor garnet amphiboite.  Calc-shcist difficult to distinguish from schist (pCPzct) of mixed unit",null,null,"NM002","Metamorphic",null,128,7721,null,null]
["Nome","pCPzsm","Coarse grained, albite mafic schist, Casadepaga Schist (?)","Precambrian to Paleozoic","Coarse grained, porphyroblastic schist and phyllite with distinct plagioclase porphyroblasts up to 1 cm in long dimension rolled in fabric.  Mafic minerals are actinolite-hornblende, largely retrograded to pennine chlorite and opaque oxides, and anhedral",null,null,"NM002","Metamorphic",null,129,7721,null,null]
["Nome","pCPzspp","Porphyroblastic epidote schist, Casadepaga Schist","Precambrian to Paleozoic","Generally coarse grained, light to medium green, feldspar rich, chlorite, epidote porphyroblastic schist.  Subhedral feldspar porphyroblasts up to 0.5 mm long are inclusion charged with secondary muscovite, chlorite, and opaques.  Chlorite is pennine ric",null,null,"NM002","Metamorphic",null,130,7720,null,50053]
["Nome","pCPzd","Dolomite","Precambrian to Paleozoic","Fine grained sugary dolomite.  Where of mappable extent pCPzd occurs in association with larger marble units (pCPzmp, pCPzmm, pCPzm).  Thin sections show more than 90 percent dolomite with several percent each of albite, white mica, epidote, and quartz",null,null,"NM002","Metamorphic",null,131,7540,null,null]
["Nome","pCPzmp","Platey marble","Precambrian to Paleozoic","Light to medium gray, medium to coarse grained, with grains 0.25 to 1 mm, hackly weathered, marble composed largely of 85 percent calcite and subordinate amounts of quartz anhedra (5 percent), tremolite (3 percent), locally diopside in disequilibrium (1",null,null,"NM002","Metamorphic",null,132,null,null,null]
["Nome","pCPzm","Massive marble","Precambrian to Paleozoic","Massive, blocky, medium to coarse grained marble composed almost entirely of calcite rhombehedrons.  Locally unmapped lenses or crosscutting dikes of chlorite-amphibole-garnet metabasited found in outcrop. pCPzm unit thought to be in thrust cntact with u",null,null,"NM002","Metamorphic",null,133,7540,null,null]
["Nome","pCPzsc","Calcareous schist, felsic schist, and chlorite schist","Precambrian to Paleozoic","Heterogeneous unit composted of distinctly brown weathered, medium grained, calcareous chlorite-white mica schist, albite rich muscovite felsic porphyroblastic schist, and mica bearing dolomitic marble.  The felsicporphyroblastic schist contain zircon an",null,null,"NM002","Metamorphic",null,134,null,null,null]
["Nome","pCPzspm","Pelitic, porphyroclastic, micaceous, graphitic schist","Precambrian to Paleozoic","Distinctively dark gray, massive to layered, medium to coarse grained, biotite, chlorite, muscovite, porphyroclastic \"lumpy\" schist, the provenance of which is thought to be pelitic, coarse metasandstone and metaconglomerate.  Composed of up to 15 percen",null,null,"NM002","Metamorphic",null,135,null,null,null]
["Nome","pCPzb","Metabasite, Nome Group","Precambrian to Paleozoic","Fine to medium grained, nonfoliated to moderately foliated, rutile and sphene-rich metabasite.  Prograde minerals include garnet, hornblende, chloritoid, calcic plagioclase, and sphene-rutile.  Retrograde minerals include pennine chlorite, albite, epidot",null,null,"NM002","Metamorphic",null,136,null,null,null]
["Nome","pCPzf","Feldspathic orthogneiss and metavolcanic schist","Precambrian to Paleozoic","Fine to medium grained, subfoliated to phaneritic, K-spar rich, felsic orthogneiss.  Contains abundant white mica, feldspar, albite, quartz, and subordinate chlorite, carbonate, and sericitic alteration products",null,null,"NM002","Metamorphic",null,137,null,null,null]
["Nome","pCPzsf","Felsic, muscovite, metavolcanic schist","Precambrian to Paleozoic","Heterogeneous unit of zircon rich, muscovite quartzose schist; feldspar-rich, porphyroblastic muscovite schist with minor quartz; and tourmaline enriched, muscovite-chlorite-feldspar schists, referred to as \"tourmalite\" beds",null,null,"NM002","Metamorphic",null,138,null,null,null]
["Nome","pCPzsg","Graphitic schist and quartzite","Precambrian to Paleozoic","Massive to laminated, blocky graphitic quartzite.  Composed of laminated layers of interlocking quartz anhedra, and graphite.  Occasionally thin sections contain 1-2 percent white mica.  represents either (1) carbonaceous fine grained mudstones; or (2) m",null,null,"NM002","Metamorphic",null,139,null,null,null]
["Nome","pCPzt","Chlorite rich, metaturbidite schist, and marble","Precambrian to Paleozoic","Medium grained, well foliated, locally banded, chlorite, muscovite, feldspathic, quartzose schist and phyllitic schist.  Locally contains thin marble beds, and up to 3 percent calcite in groundmass.  Also contains variable amounts of clinozoisite, garnet",null,null,"NM002","Metamorphic",null,140,null,null,null]
["Nome","pCPztc","Calcareous metaturbidite schist","Precambrian to Paleozoic","Usually banded, calcareous, micaceous, feldspathic schist typically containing calcite, white mica, chlorite, inclusion charged feldspar, quartz, and opaque minerals.  Similar to interbedded pCPzt unit, but more calcareous.  Thought to be gradational wit",null,null,"NM002","Metamorphic",null,141,null,null,null]
["Nome","pCPzspb","Garnet, biotite, pelitic schist, Solomon Schist (?)","Precambrian to Paleozoic","Biotite rich, graphite bearing quartzose schist with numerous small anhedra garnets, largely retrograded to leucoxene and chlorite, and opaque oxides.  Similar to pCPzspm unit but coarser grained and with lower quartz content.  Exposed in Twin Creek Anti",null,null,"NM002","Metamorphic",null,142,7463,null,null]
["Nome","pCPzspc","Calcareous, biotite, porphyroblastic schist, Solomon Schist (?)","Precambrian to Paleozoic","Porphyroblastic (albite grains) biotite rich calcareous pelitic schist, chiefly distinguished by high biotite content, which comprises up to 40 percent of rock.  Also contains distinctive quartz-graphite lamina ranging from 5 to 50 cm thick",null,null,"NM002","Metamorphic",null,143,7463,null,null]
["Nome","pCPzsgb","Biotite, graphitic schist and quartzite, Solomon Schist (?)","Precambrian to Paleozoic","Blocky to massive, moderately foliated, muscovite-biotite, graphitic schist and black laminated quartzite.  pCPzsgb forms, along with pCPzss unit, the major lithologies of the Solomon Schist in the study area.  Distinguished from other pelitic units by c",null,null,"NM002","Metamorphic",null,144,7463,null,null]
["Nome","pCPzsa","Albite chlorite schist and quartite","Precambrian to Paleozoic","Porphyroblastic, feldspathic, chloritic schist and very light gray to bleached, laminated quartzite, both highly schistose",null,null,"NM002","Metamorphic",null,145,null,null,null]
["Nome","pCPzss","Muscovite, quartzose schist and paragneiss, Solomon schist","Precambrian to Paleozoic","Medium grained, foliated, massive to laminated, garnet bearing, white mica, quartziose schist and paragneiss.  Dominant lithology of Solomon Schist north of Stewart River.  Locally contains porphyroblasts of andesine, chloritoid, and pseudomorphs (?) of",null,null,"NM002","Metamorphic",null,146,7463,null,null]
["Nome","pCPzspi","Iron rich, biotite, pelitic schist, Nome Group","Precambrian to Paleozoic","Medium to coarse grained, well foliated, pyrite rich, garnet, mica schist.  Contains abundant garnet, pyrite and its alteration products goethite and limonite, pennine after both white mica and biotite, epidote, quartz, and undetermined feldspar.  Pyrite",null,null,"NM002","Metamorphic",null,147,9425,null,null]
["Nome","Mzdg","Metadiorite","Mesozoic (?)","Medium graained phaneritic, slightly foliated, andesine, hyperstene (?) metadiorite or metagabbro.  Mafic minerals completely altered to pennine chlorite, leucoxene, and undetermined opaques.  Quartz poor.  Observed only in core of Twin Creek anticline o",null,null,"NM002","Metamorphic",null,148,null,null,null]
["Nome","pCPzg","Granite and granodiorite gneiss","Precambrian to Paleozoic","Subfoliated to massive, blastoporphyritic, white mica rich orthogneiss variety, granite gneiss and granodiorite gneiss.  Contains numerous and complexly folded inclusions of host rock Nome Group lithologies, including pelitic and mafic schists.  White mi",null,null,"NM002","Metamorphic",null,149,9470,null,50064]
["Nome","g","Ferricrete gossan",null,"Ferricrete gossan\rOnly information given is the name shown in the map symbols.",null,null,"NM002","Metamorphic","ALT",150,null,null,null]
["Selawik","Qs","Surficial sedimentary deposits, undivided","Quaternary","Frost-rived rubble on slopes and broad low ridges; glacially deposted sand, gravel, and boulders; fluvial gravel and sand; terrace deposits.",null,null,"SE005","Sedimentary",null,2040,100,1000,50001]
["Selawik","Ks","Conglomerate, sandstone, and shale","Cretaceous","Conglomerate and finer grained sedimentary rocks that grade from massive, poorly stratified rocks rich in mafic intrusive and extrusive clasts at the base of the unit to a well-sorted sedimentary rock rich in quartz and metagraywacke clasts at the top of","Sparse plant fossils of Early to Late Cretaceous age; Early Cretaceous? marine mollusks",null,"SE005","Sedimentary",null,2038,1990,null,null]
["Selawik","Pzm","Marble","Paleozoic","White to gray (less commonly black), fine to coarsely crystalline, massive to platy marble and subordinate metalimestone and dolostone occurs discontinuously in all quadrangles within the map area.  This unit is part of the Central belt.","Conodonts, silicified two-hole crinoid columnals of late Early-early Middle Devonian  (late Emsian-Eifelian) age; brachiopods; possible stromatoporoids; pelmatozoan; trilobites",null,"SE005","Metamorphic",null,2023,6983,null,null]
["Selawik","Pzsg","Mafic schist","Paleozoic","Green and greenish-gray schistose to massive irregularly-shaped bodies and lenses of mafic rocks in units Dsq and DPsc large enough to show at the scale of the map occur in the Survey Pass and Chandalar quadrangles.  This unit is part of the Schist belt.",null,null,"SE003","Metamorphic",null,2006,7000,null,null]
["Selawik","Dsq","Quartz-mica schist","Devonian","Gray, dark gray, or brownish-gray weathering, dominantly pelitic or semipelitic schist that constitutes a major unit along the length of the Schist belt.  Outcrops vary from blocky and resistant (quartz-rich varieties) to platy and less resistant (mica-r",null,"Youngest detrital zircon population at one locality 370-360 Ma","SE005","Metamorphic",null,2000,8602,null,null]
["Selawik","DpCsc","Calcareous schist, Schist belt","Devonian to Proterozoic","Light gray, brown and locally orange-weathering, lithologically heterogeneous mix of marble and carbonate-rich, quartz-rich, and mafic schist derived from metasedimentary and metaigneous protoliths, one of two major units that extends along the length of","Ghosts of radiolarians, sponge spicules, bivalves, fine graphite laminae, stromatolites, conodonts",null,"SE005","Metamorphic",null,2001,8605,null,null]
["Selawik","PzZcm","Metasedimentary and metavolcanic rocks, undivided","Paleozoic and Proterozoic?","Heterogeneous assemblage of interlayered calcareous, mafic, and siliceous rocks exposed in the central Baird Mountains, Ambler River, and Wiseman quadrangles.  This unit is part of the Central belt.","Conodonts",null,"SE005","Metamorphic",null,2046,8655,null,null]
["Candle","Qua","Undifferentiated alluvial, colluvial, and eolian terrace and slope deposits","Quaternary","Undifferentiated alluvial, colluvial, and eolian terrace and slope deposits",null,null,"CA003","Unconsolidated",null,100,100,1000,50001]
["Candle","TKs","Carbonate-rich conglomerate and sandstone; mudstone, siltstone and coal, Kugruk Fault zone","Tertiary and Cretaceous","Two separate sedimentary sequences, of broadly different age: tan to light-gray siltstone, sandstone, and pebbly sandstone, and light-gray-weathering conglomerate composed mostly of marble, metalimestone, and dolostone clasts, probably of mid-Cretaceous",null,null,"CA004","Sedimentary",null,4002,1520,null,50013]
["Candle","Kv","Andesite and basalt flows and volcaniclastic rocks","Early Cretaceous","Andesite and basalt flows interbedded with volcaniclastic rocks and volcanic greywacke, exposed along the eastern boundary of the map in the Candle quadrangle (Figure 2).   Calcareous tuffs in the upper part of the unit contain abundant shelly material,",null,"K-Ar ages of 137 to 120 Ma (Patton and others, 2005)","CA004","Igneous",null,4006,2330,null,50016]
["Candle","Qs","Surficial deposits, undivided","Quaternary","Frost-rived rubble on slopes and broad low ridges; glacial moraine; glacially deposited sand, gravel, and boulders; fluvial gravel and sand; marine and fluvial terrace deposits; wetlands",null,null,"CA004","Unconsolidated",null,4000,100,1000,50001]
["Candle","MzPzm","Metamorphosed mafic rocks and serpentinite, Kugruk Fault zone","Mesozoic and Paleozoic?","A tectonic assemblage of metagabbro, metabasalt, amphibolite, serpentinite, and minor chert, exposed in rubble fields and poor outcrops along the trend of the Kugruk fault zone.  Mafic rocks within the fault zone include minor unmetamorphosed (but altere",null,null,"CA004","Tectonite",null,4004,4990,null,50027]
["Candle","Pzm","Marble, Nome Complex","Paleozoic","Generally light-gray-weathering, white to medium-gray, medium to coarsely crystalline marble that forms rubble-covered hills and small outcrops which are widely but sparsely distributed through the map area. Marble in this unit is dominantly pure, but lo","Conodonts, stromatoporoids and (or) colonial and rugose corals",null,"CA004","Metamorphic",null,4003,5651,null,50045]
["Candle","DOx","Mixed marble, graphitic metaquartzite, and schist, Nome Complex","Devonian through Ordovician","Interlayered pure and impure marble, graphitic metasiliceous rock, pelitic schist, calc-schist, and mafic schist. Gray and orange weathering marble and dark gray-black weathering graphitic metasiliceous rock are the most common lithologies in the unit, w",null,null,"CA004","Metamorphic",null,4001,7467,null,50006]
["Candle","Ocs","Casadepaga Schist, Nome Complex","Ordovician","Light green, silvery green and greenish-brown mafic, feldspathic, and calcareous schist. Typically occurs as frost-riven slabs and flakes that underlie rounded hills and dark greenish-black tors and rubble piles several meters across. Tors of metabasite,",null,null,"CA004","Metamorphic",null,4005,7720,null,50053]
["Candle","Pzl","Limestone and schist -- Limestone and dolomite","middle Paleozoic","Chiefly light-gray, massively bedded recrystallized limestone and dolomite, containing subordnate calcareous mica schist and dark phyllite.  Sub-division of this unit from Patton (1967) to separate dolomite","Tentatively assigned middle Paleozoic age based on correlation with fossiliferous carbonate rocks in the Solomon quadrangle",null,"CA004","Metamorphic",null,4301,5652,null,50041]
["Bendeleben","Kg","Kigluaik granite","Cretaceous","Fine- to medium-grained felsic rocks of the upper part of the Kigluaik pluton (Figure 2), including leucocratic biotite granite and granodiorite (Amato and Miller, 2004).  This unit is more extensively exposed than the mafic root (Kdi), and contains mino",null,null,"BN005","Igneous",null,403,2490,null,50015]
["Bendeleben","Kp","Pargon pluton","Cretaceous","Fine grained equigranular, fine to medium grained seriate granodiorite, monzodiorite, and locally monzogranite exposed in the western Bendeleben Mountains along the Pargon River (Figure 2).  Granodiorite and quartz monzonite are the dominant lithologies.",null,"U-Pb zircon age of 86±1 Ma (Gottlieb and Amato, 2008)","BN005","Igneous",null,409,2470,null,50074]
["Bendeleben","TKs","Carbonate-rich conglomerate and sandstone; mudstone, siltstone and coal, Kugruk Fault zone","Tertiary and Cretaceous","Two separate sedimentary sequences, of broadly different age: tan to light-gray siltstone, sandstone, and pebbly sandstone, and light-gray-weathering conglomerate composed mostly of marble, metalimestone, and dolostone clasts, probably of mid-Cretaceous",null,null,"BN005","Sedimentary",null,412,1520,null,50013]
["Bendeleben","Qs","Surficial deposits, undivided","Quaternary","Frost-rived rubble on slopes and broad low ridges; glacial moraine; glacially deposited sand, gravel, and boulders; fluvial gravel and sand; marine and fluvial terrace deposits; wetlands",null,null,"BN005","Unconsolidated",null,400,100,1000,50001]
["Bendeleben","MzPzm","Metamorphosed mafic rocks and serpentinite, Kugruk Fault zone","Mesozoic and Paleozoic?","A tectonic assemblage of metagabbro, metabasalt, amphibolite, serpentinite, and minor chert, exposed in rubble fields and poor outcrops along the trend of the Kugruk fault zone.  Mafic rocks within the fault zone include minor unmetamorphosed (but altere",null,null,"BN005","Tectonite",null,411,4990,null,50027]
["Bendeleben","PzZg","Gneiss and orthogneiss, High-grade metamorphic and associated igneous rocks","Paleozoic? and Proterozoic?","Light brownish gray, light orange to gray biotite-plagioclase-quartz gneiss and granitic orthogneiss and minor metasedimentary rocks exposed in rubble crop north of the Oonatut Granite Complex, northwest Bendeleben quadrangle (Hudson, 1979).  The fabric",null,null,"BN005","Metamorphic",null,410,7250,null,50068]
["Bendeleben","Df","Felsic schist, Nome Group","Devonian","Light orange to light green weathering fine to coarse-grained quartz-feldspar-white mica schist. Present on the southwest flank of Kiwalik Mountain, where it occurs as platey rubble-crop of mm-scale laminated, very fine grained schist. Rarely, accessory",null,"U-Pb zircon age 391±5 Ma (J. Aleinikoff, written commun., 2005; Till and others, 2006)","BN005","Metamorphic",null,413,7261,null,50049]
["Bendeleben","Dcs","Pelitic, calcareous, and graphitic schist, Nome Group","Devonian","Pelitic, calcareous, and graphitic lithologies interlayered on a scale of centimeters to meters, exposed in the central Nome and Solomon quadrangles.  Interlayering is gradational and intimate. The unit is composed predominantly of pale brown and gray we",null,null,"BN005","Metamorphic",null,408,7462,null,50009]
["Bendeleben","Ds","Pelitic schist, Nome Group","Devonian?","Tors of resistant, well-foliated quartz-rich schist. Pelitic rocks are the dominant lithology in the unit; calcareous schist is a minor component. Outcrop appearance of the pelitic schist is diagnostic of the unit, and shows 1- to 2-cm-thick bands of gra",null,null,"BN005","Metamorphic",null,405,7463,null,50008]
["Bendeleben","DOx","Mixed marble, graphitic metaquartzite, and schist, Nome Group","Devonian through Ordovician","Interlayered pure and impure marble, graphitic metasiliceous rock, pelitic schist, calc-schist, and mafic schist. Gray and orange weathering marble and dark gray-black weathering graphitic metasiliceous rock are the most common lithologies in the unit, w",null,null,"BN005","Metamorphic",null,407,7467,null,50006]
["Bendeleben","Ocs","Casadepaga Schist, Nome Complex","Ordovician","Light green, silvery green and greenish-brown mafic, feldspathic, and calcareous schist. Typically occurs as frost-riven slabs and flakes that underlie rounded hills and dark greenish-black tors and rubble piles several meters across. Tors of metabasite,",null,null,"BN005","Metamorphic",null,406,7720,null,50053]
["Bendeleben","PzZh","High-grade metasedimentary and metaigneous rocks, High-grade Metamorphic  and associated igneous rocks","Paleozoic  and Proterozoic","Brown, light brown, reddish brown, black, and gray-weathering schist and gneiss exposed in the Kigluaik, Bendeleben, and Darby Mountains. Highest-grade metamorphic assemblages are upper amphibolite to granulite grade; assemblages in all three ranges reco",null,null,"BN005","Metamorphic",null,402,8860,null,50050]
["Bendeleben","Zo","Orthogneiss, High-grade metamorphic and associated igneous rocks","Proterozoic","Pale gray-, tan- and orangish-tan-weathering outcrops and rubble fields of foliated and unfoliated metagranitic rocks that form a large, tabular, concordant body within the high-grade rocks of the Kigluaik Mountains.  Called the \"Thompson Creek orthognei",null,"U-Pb zircon ages of 555±15 Ma (TIMS; Amato and Wright, 1998) and 565±6 Ma (SHRIMP; Amato, 2004)","BN005","Metamorphic",null,401,9470,null,50065]
["Bendeleben","Pzg","Granitic orthogneiss","Paleozoic","Granitic orthogneiss.  Sub-division of unit of Till and others (1986) that outcrops associated with the Nome Complex",null,null,"BN005","Metamorphic",null,4314,7251,null,50069]
["Bendeleben","Pzd","Dolostone, undivided","Paleozoic","Dolostone, undivided.  Sub-division of unit of Till and others (1986) to separate Ordovician dolostone",null,null,"BN004","Sedimentary",null,4313,7540,null,50042]
["Bendeleben","Zn","Metagranitic rocks, Nome Complex","Late Proterozoic","Pale gray to pale greenish tan, locally green-weathering rubble crop and outcrop of small granitic, granodioritic, and tonalitic orthogneiss bodies.  Weakly- to well-foliated, fine- to coarse-grained, with foliation defined by weak to strong alignment of",null,"669±5 Ma, U-Pb zircon analyses that range from approximately 665 to 685 Ma","BN005","Metamorphic",null,5332,9470,null,50064]
["Bendeleben","Zv","Metavolcanic rocks, High-grade metamorphic and associated igneous rocks","Proterozoic","Foliated lens- to sill-shaped bodies in the western Bendeleben Mountains exposed in outcrop and rubble fields.  Up to 50 meters thick. Very fine grain size and variation in the abundance and relative proportion of biotite and hornblende suggest a volcani",null,"U-Pb zircon age of 870 Ma (Gottlieb and Amato, 2007, 2008; Amato and others, 2009)","BN005","Metamorphic",null,4332,9475,null,50067]
["Nome","Kg","Kigluaik granite","Cretaceous","Fine- to medium-grained felsic rocks of the upper part of the Kigluaik pluton (Figure 2), including leucocratic biotite granite and granodiorite (Amato and Miller, 2004).  This unit is more extensively exposed than the mafic root (Kdi), and contains mino",null,null,"NM005","Igneous",null,209,2490,null,50015]
["Nome","Kdi","Kigluaik diorite","Cretaceous","Fine- to medium-grained potassic mafic rocks of the lower part of the Kigluaik pluton, including biotite hornblende diorite, quartz diorite, granodiorite, tonalite, and gabbro, exposed in the western Kigluaik Mountains (Figure 2; Amato and others, 1994;",null,"Crystallization age of 90±1 Ma (Amato and Wright, 1998)","NM005","Igneous",null,210,2496,null,50066]
["Nome","Kgu","Granitic rocks, undifferentiated","Cretaceous","Granitic dikes, sills and small plugs at widely scattered localities (Figure 2).  Most commonly these bodies occur within exposures of high-grade metamorphic rocks (|<h), but they are also present in the Nome Complex and on islands off of the south and w",null,null,"NM005","Igneous",null,214,2410,null,50017]
["Nome","Qs","Surficial deposits, undivided","Quaternary","Frost-rived rubble on slopes and broad low ridges; glacial moraine; glacially deposited sand, gravel, and boulders; fluvial gravel and sand; marine and fluvial terrace deposits; wetlands",null,null,"NM005","Unconsolidated",null,208,100,1000,50001]
["Nome","Pzmm","Marble of the Moon Mountains, Nome Complex","Paleozoic","Pale gray to white weathering, coarsely crystalline calcite marble exposed only in the western Nome quadrangle, in an area informally called the Moon Mountains due to lack of vegetation.  The marble has a layered appearance due to variations in grain siz",null,null,"NM005","Metamorphic",null,213,5651,null,50046]
["Nome","Dcs","Pelitic, calcareous, and graphitic schist, Nome Complex","Devonian","Pelitic, calcareous, and graphitic lithologies interlayered on a scale of centimeters to meters, exposed in the central Nome and Solomon quadrangles.  Interlayering is gradational and intimate. The unit is composed predominantly of pale brown and gray we",null,null,"NM005","Metamorphic",null,203,7462,null,50009]
["Nome","DOx","Mixed marble, graphitic metaquartzite, and schist, Nome Group","Devonian through Ordovician","Interlayered pure and impure marble, graphitic metasiliceous rock, pelitic schist, calc-schist, and mafic schist. Gray and orange weathering marble and dark gray-black weathering graphitic metasiliceous rock are the most common lithologies in the unit, w",null,null,"NM005","Metamorphic",null,202,7467,null,50006]
["Nome","Oim","Impure chlorite marble, Nome Complex","Ordovician","Buff- to orange-weathering chlorite-, white mica-, and albite-bearing calcite marble that underlies rounded hills. The unit crops out poorly; rare outcrops show well-foliated impure marble to calcareous schist. Impurities are most commonly chlorite and a",null,null,"NM005","Metamorphic",null,200,7750,null,50043]
["Nome","Ocs","Casadepaga Schist, Nome Complex","Ordovician","Light green, silvery green and greenish-brown mafic, feldspathic, and calcareous schist. Typically occurs as frost-riven slabs and flakes that underlie rounded hills and dark greenish-black tors and rubble piles several meters across. Tors of metabasite,",null,null,"NM005","Metamorphic",null,201,7720,null,50053]
["Nome","PzZh","High-grade metasedimentary and metaigneous rocks, High-grade Metamorphic  and associated igneous rocks","Paleozoic  and Proterozoic","Brown, light brown, reddish brown, black, and gray-weathering schist and gneiss exposed in the Kigluaik, Bendeleben, and Darby Mountains. Highest-grade metamorphic assemblages are upper amphibolite to granulite grade; assemblages in all three ranges reco",null,null,"NM005","Metamorphic",null,212,8860,null,50050]
["Nome","Zn","Metagranitic rocks, Nome Complex","Late Proterozoic","Pale gray to pale greenish tan, locally green-weathering rubble crop and outcrop of small granitic, granodioritic, and tonalitic orthogneiss bodies.  Weakly- to well-foliated, fine- to coarse-grained, with foliation defined by weak to strong alignment of",null,"669±5 Ma, U-Pb zircon analyses that range from approximately 665 to 685 Ma","NM005","Metamorphic",null,206,9470,null,50064]
["Nome","Zo","Orthogneiss, High-grade metamorphic and associated igneous rocks","Proterozoic","Pale gray-, tan- and orangish-tan-weathering outcrops and rubble fields of foliated and unfoliated metagranitic rocks that form a large, tabular, concordant body within the high-grade rocks of the Kigluaik Mountains.  Called the \"Thompson Creek orthognei",null,"U-Pb zircon ages of 555±15 Ma (TIMS; Amato and Wright, 1998) and 565±6 Ma (SHRIMP; Amato, 2004)","NM005","Metamorphic",null,211,9470,null,50065]
["Norton Bay","Qs","Surficial deposits, undivided","Quaternary","Frost-rived rubble on slopes and broad low ridges; glacial moraine; glacially deposited sand, gravel, and boulders; fluvial gravel and sand; marine and fluvial terrace deposits; wetlands",null,null,"NR004","Unconsolidated",null,2001,100,1000,50001]
["Norton Bay","TKs","Carbonate-rich conglomerate and sandstone; mudstone, siltstone and coal, Kugruk Fault zone","Tertiary and Cretaceous","Two separate sedimentary sequences, of broadly different age: tan to light-gray siltstone, sandstone, and pebbly sandstone, and light-gray-weathering conglomerate composed mostly of marble, metalimestone, and dolostone clasts, probably of mid-Cretaceous",null,null,"NR004","Sedimentary",null,2003,1822,null,50013]
["Norton Bay","Pzd","Dolostone, undivided, Nome Complex","Paleozoic","Generally light-colored, fine-grained, featureless dolostone that forms rubble-covered hills sparsely distributed through the map area. This unit likely includes rocks of several ages. Conodont faunas, obtained at seven localities, are mostly long rangin","Conodonts",null,"NR004","Metamorphic",null,2004,5652,null,50041]
["Norton Bay","Pzm","Marble, Nome Complex","Paleozoic","Generally light-gray-weathering, white to medium-gray, medium to coarsely crystalline marble that forms rubble-covered hills and small outcrops which are widely but sparsely distributed through the map area. Marble in this unit is dominantly pure, but lo","Conodonts, stromatoporoids and (or) colonial and rugose corals",null,"NR004","Metamorphic",null,2005,5651,null,50045]
["Norton Bay","DOx","Mixed marble, graphitic metaquartzite, and schist, Nome Group","Devonian through Ordovician","Interlayered pure and impure marble, graphitic metasiliceous rock, pelitic schist, calc-schist, and mafic schist. Gray and orange weathering marble and dark gray-black weathering graphitic metasiliceous rock are the most common lithologies in the unit, w",null,null,"NR004","Metamorphic",null,2006,7467,null,50006]
["Norton Bay","DCbm","Black marble, Nome Group","Devonian through Cambrian","Dark gray to black marble and subordinate fissile impure marble, calcareous schist, and mafic schist that crops out in the eastern Solomon and western Norton Bay quadrangles. The unit is best exposed in sea cliffs along Norton Bay and forms rubble covere","Conodonts",null,"NR004","Metamorphic",null,2007,7465,null,50002]
["Norton Bay","Pzc","Carbonate rocks","Early Paleozoic","Carbonate rocks.  Sub-division of Patton's Norton Bay unit into marble and dolostone units.  This is the marble",null,null,"NR004","Sedimentary",null,4440,5651,null,50045]
["Norton Bay","Pzc","Carbonate rocks","Early Paleozoic","Carbonate rocks.  Sub-division of Patton's Norton Bay unit into marble and dolostone units.  This is the dolostone",null,null,"NR004","Sedimentary",null,5440,5652,null,50041]
["Selawik","Qs","Surficial deposits, undivided","Quaternary","Frost-rived rubble on slopes and broad low ridges; glacial moraine; glacially deposited sand, gravel, and boulders; fluvial gravel and sand; marine and fluvial terrace deposits; wetlands",null,null,"SE006","Unconsolidated",null,5000,100,1000,50001]
["Selawik","Ocs","Casadepaga Schist, Nome Complex","Ordovician","Light green, silvery green and greenish-brown mafic, feldspathic, and calcareous schist. Typically occurs as frost-riven slabs and flakes that underlie rounded hills and dark greenish-black tors and rubble piles several meters across. Tors of metabasite,",null,null,"SE006","Metamorphic",null,50002,7720,null,50053]
["Selawik","DOx","Mixed marble, graphitic metaquartzite, and schist, Nome Group","Devonian through Ordovician","Interlayered pure and impure marble, graphitic metasiliceous rock, pelitic schist, calc-schist, and mafic schist. Gray and orange weathering marble and dark gray-black weathering graphitic metasiliceous rock are the most common lithologies in the unit, w",null,null,"SE006","Metamorphic",null,5001,7467,null,50006]
["Solomon","DCbm","Black marble, Nome Group","Devonian through Cambrian","Dark gray to black marble and subordinate fissile impure marble, calcareous schist, and mafic schist that crops out in the eastern Solomon and western Norton Bay quadrangles. The unit is best exposed in sea cliffs along Norton Bay and forms rubble covere","Conodonts",null,"SO004","Metamorphic",null,31,7465,null,50002]
["Solomon","Oim","Impure chlorite marble, Nome Complex","Ordovician","Buff- to orange-weathering chlorite-, white mica-, and albite-bearing calcite marble that underlies rounded hills. The unit crops out poorly; rare outcrops show well-foliated impure marble to calcareous schist. Impurities are most commonly chlorite and a",null,null,"SO005","Metamorphic",null,5315,7750,null,50043]
["Solomon","Qs","Surficial deposits, undivided","Quaternary","Frost-rived rubble on slopes and broad low ridges; glacial moraine; glacially deposited sand, gravel, and boulders; fluvial gravel and sand; marine and fluvial terrace deposits; wetlands",null,null,"SO005","Unconsolidated",null,400,100,1000,50001]
["Solomon","Zo","Orthogneiss, High-grade metamorphic and associated igneous rocks","Proterozoic","Pale gray-, tan- and orangish-tan-weathering outcrops and rubble fields of foliated and unfoliated metagranitic rocks that form a large, tabular, concordant body within the high-grade rocks of the Kigluaik Mountains.  Called the \"Thompson Creek orthognei",null,"U-Pb zircon ages of 555±15 Ma (TIMS; Amato and Wright, 1998) and 565±6 Ma (SHRIMP; Amato, 2004)","SO005","Metamorphic",null,401,9470,null,50065]
["Solomon","PzZh","High-grade metasedimentary and metaigneous rocks, High-grade Metamorphic  and associated igneous rocks","Paleozoic  and Proterozoic","Brown, light brown, reddish brown, black, and gray-weathering schist and gneiss exposed in the Kigluaik, Bendeleben, and Darby Mountains. Highest-grade metamorphic assemblages are upper amphibolite to granulite grade; assemblages in all three ranges reco",null,null,"SO005","Metamorphic",null,402,8860,null,50050]
["Solomon","Dcs","Pelitic, calcareous, and graphitic schist, Nome Group","Devonian","Pelitic, calcareous, and graphitic lithologies interlayered on a scale of centimeters to meters, exposed in the central Nome and Solomon quadrangles.  Interlayering is gradational and intimate. The unit is composed predominantly of pale brown and gray we",null,null,"SO005","Metamorphic",null,404,7462,null,50009]
["Solomon","Ds","Pelitic schist, Nome Group","Devonian?","Tors of resistant, well-foliated quartz-rich schist. Pelitic rocks are the dominant lithology in the unit; calcareous schist is a minor component. Outcrop appearance of the pelitic schist is diagnostic of the unit, and shows 1- to 2-cm-thick bands of gra",null,null,"SO005","Metamorphic",null,405,7463,null,50008]
["Solomon","Ocs","Casadepaga Schist, Nome Complex","Ordovician","Light green, silvery green and greenish-brown mafic, feldspathic, and calcareous schist. Typically occurs as frost-riven slabs and flakes that underlie rounded hills and dark greenish-black tors and rubble piles several meters across. Tors of metabasite,",null,null,"SO005","Metamorphic",null,406,7720,null,50053]
["Solomon","DOx","Mixed marble, graphitic metaquartzite, and schist, Nome Group","Devonian through Ordovician","Interlayered pure and impure marble, graphitic metasiliceous rock, pelitic schist, calc-schist, and mafic schist. Gray and orange weathering marble and dark gray-black weathering graphitic metasiliceous rock are the most common lithologies in the unit, w",null,null,"SO005","Metamorphic",null,407,7467,null,50006]
["Solomon","Pzm","Marble, Nome Complex","Paleozoic","Generally light-gray-weathering, white to medium-gray, medium to coarsely crystalline marble that forms rubble-covered hills and small outcrops which are widely but sparsely distributed through the map area. Marble in this unit is dominantly pure, but lo","Conodonts, stromatoporoids and (or) colonial and rugose corals",null,"SO005","Metamorphic",null,408,5651,null,50045]
["Solomon","QTv","Weathered volcanic rocks, undivided","Quaternary and Tertiary","Basalt lava flows, vent deposits, maar volcanoes and associated pyroclastic rocks exposed in northern, central, eastern, and to a minor extent, southern Seward Peninsula (Figure 2).   \rLess weathered rocks are slightly to strongly fragmented by frost riv",null,"40Ar/39Ar whole rock age of approximately 0.8 Ma (Werdon and others, 2006)","SO005","Igneous",null,409,350,3500,50012]
["Solomon","Zn","Metagranitic rocks, Nome Complex","Late Proterozoic","Pale gray to pale greenish tan, locally green-weathering rubble crop and outcrop of small granitic, granodioritic, and tonalitic orthogneiss bodies.  Weakly- to well-foliated, fine- to coarse-grained, with foliation defined by weak to strong alignment of",null,"669±5 Ma, U-Pb zircon analyses that range from approximately 665 to 685 Ma","SO005","Metamorphic",null,410,9470,null,50064]
["Solomon","Ddm","Dolostone, metalimestone, and marble, Nome Group","Devonian","Medium- to dark-gray-weathering, dark-gray to black dolostone, metalimestone and marble, with minor associated chert, that typically weathers to fist-sized rubble but forms outcrops along river banks or sea cliffs. Ddm is widely but sparsely distributed",null,null,"SO005","Sedimentary",null,411,7461,null,50004]
["Teller","Kg","Kigluaik granite","Cretaceous","Fine- to medium-grained felsic rocks of the upper part of the Kigluaik pluton (Figure 2), including leucocratic biotite granite and granodiorite (Amato and Miller, 2004).  This unit is more extensively exposed than the mafic root (Kdi), and contains mino",null,null,"TE004","Igneous",null,1410,2490,null,50015]
["Teller","OZp","Phyllite, York terrane","Ordovician through Proterozoic","Fine-grained, mainly pelitic and (or) calcareous phyllite exposed in the west-central part of the Teller quadrangle.  Outcrops occur on creeks, weather gray to grayish-brown, and are layered and locally finely laminated. The phyllitic foliation surface i",null,null,"TE004","Metamorphic",null,1504,7576,null,50038]
["Teller","Kgu","Granitic rocks, undifferentiated","Cretaceous","Granitic dikes, sills and small plugs at widely scattered localities (Figure 2).  Most commonly these bodies occur within exposures of high-grade metamorphic rocks (PzZh), but they are also present in the Nome Complex and on islands off of the south and",null,"K-Ar biotite date of 110.7±3 Ma","TE004","Igneous",null,1526,2410,null,50017]
["Teller","Qs","Surficial deposits, undivided","Quaternary","Frost-rived rubble on slopes and broad low ridges; glacial moraine; glacially deposited sand, gravel, and boulders; fluvial gravel and sand; marine and fluvial terrace deposits; wetlands",null,null,"TE004","Unconsolidated",null,1400,100,1000,50001]
["Teller","QTv","Weathered volcanic rocks, undivided","Quaternary and Tertiary","Basalt lava flows, vent deposits, maar volcanoes and associated pyroclastic rocks exposed in northern, central, eastern, and to a minor extent, southern Seward Peninsula (Figure 2).   \rLess weathered rocks are slightly to strongly fragmented by frost riv",null,"40Ar/39Ar whole rock age of approximately 0.8 Ma (Werdon and others, 2006)","TE005","Igneous",null,2000,350,3500,50012]
["Teller","Ktg","Tin-bearing granitic stocks","Late Cretaceous","Stocks of biotite granite exposed in outcrop, rubble, and float in northwestern Seward Peninsula.  Includes stocks at Cape Mountain, Brooks Mountain, Black Mountain, Ear Mountain, and the Oonatut Granite Complex (Figure 2).  The belt also includes bodies",null,"K-Ar biotite ages range from 69.2±2 to 80.2±3 Ma (Hudson and Arth, 1983)","TE004","Igneous",null,1508,2460,null,50024]
["Teller","Pzl","Limestone, York terrane","Paleozoic","Intensely deformed limestone that has yielded no fossils but is presumed to be of Paleozoic age (Sainsbury, 1972), exposed in several small outcrops in the central part of the Teller quadrangle, northeast of the York Mountains. Equivalent to western part",null,null,"TE004","Metamorphic",null,1520,5321,null,50032]
["Teller","Pzp","Phyllite and argillite, Grantley Harbor Fault Zone","Paleozoic","Phyllite, argillite, and lesser metasiltstone and fine-grained metacarbonate rocks exposed south and north of Grantley Harbor in the central Teller quadrangle. Outcrops consist of brownish-orange- to black-weathering, silvery-gray to black, locally carbo","Sparse conodont fragments, recrystallized radiolarians and siliceous sponge spicules",null,"TE004","Metamorphic",null,1518,5575,null,50047]
["Teller","Pznp","Metagabbro and metasediments, Nome Complex","Paleozoic?","Massive tors and rubble piles of metagabbro and poorly exposed metasedimentary rocks on the western side of the Kigluaik Mountains.  Metagabbro bodies form flat-topped hills generally less than a kilometer across; one body exposed along sea cliffs is 9 k",null,null,"TE004","Metamorphic",null,1514,5650,null,50048]
["Teller","Pzm","Marble, Nome Complex","Paleozoic","Generally light-gray-weathering, white to medium-gray, medium to coarsely crystalline marble that forms rubble-covered hills and small outcrops which are widely but sparsely distributed through the map area. Marble in this unit is dominantly pure, but lo","Conodonts, stromatoporoids and (or) colonial and rugose corals",null,"TE004","Metamorphic",null,1510,5651,null,50045]
["Teller","Ml","Limestone, dolomitic limestone, and marble, York terrane","Mississippian","Intensely deformed and recrystallized medium-dark-gray carbonate rocks, locally cherty and intercalated with subordinate fine-grained siliciclastic strata, exposed on the westernmost tip of Seward Peninsula (Teller quadrangle; Sainsbury, 1972). Ml has be",null,null,"TE004","Metamorphic",null,1519,6325,null,50026]
["Teller","DSl","Limestone, York terrane","Devonian and (or) Silurian","Light-gray-weathering, medium-dark-gray limestone exposed in a small, fault-bounded area in the central Teller quadrangle. Lithofacies include cherty lime mudstone, peloidal wackestone, and lesser coralline packstone. Lower beds in this unit produced rel","Corals thought to be of probable Middle or Late Devonian age by Oliver and others (1975)",null,"TE004","Sedimentary",null,1525,6930,null,50005]
["Teller","Ds","Pelitic schist, Nome Group","Devonian?","Tors of resistant, well-foliated quartz-rich schist. Pelitic rocks are the dominant lithology in the unit; calcareous schist is a minor component. Outcrop appearance of the pelitic schist is diagnostic of the unit, and shows 1- to 2-cm-thick bands of gra",null,null,"TE004","Metamorphic",null,1522,7463,null,50008]
["Teller","DOx","Mixed marble, graphitic metaquartzite, and schist, Nome Group","Devonian through Ordovician","Interlayered pure and impure marble, graphitic metasiliceous rock, pelitic schist, calc-schist, and mafic schist. Gray and orange weathering marble and dark gray-black weathering graphitic metasiliceous rock are the most common lithologies in the unit, w",null,null,"TE004","Metamorphic",null,1509,7467,null,50006]
["Teller","DOx, overlay","Mixed marble, graphitic metaquartzite, and schist, Nome Group","Devonian to Ordovician","The part of the unit in the Teller quadrangle shown with the diagonal line overlay is distinct in age and lithology.  Dolostone, dolomitic marble, and marble form an elongate belt, extending for almost 40 km, in the westernmost part of DOx in the eastern",null,null,"TE004","Metamorphic",null,1521,7468,null,50007]
["Teller","Ol","Limestone, York terrane","Ordovician","Mainly massive to thick-bedded, light-brownish-gray to medium-gray, fine-grained limestone with local chert nodules and lesser interbeds of argillaceous limestone and shale, widely exposed in and adjacent to the York Mountains in the western and central","Brachiopods, cephalopods, echinoderm debris, gastropods, and trilobites",null,"TE004","Sedimentary",null,1502,7520,null,50035]
["Teller","SOdl","Dark limestone, York terrane","Silurian and Late Ordovician","Medium- to thick-bedded, light-brown to dark-gray limestone, dolomitic limestone, and dolostone, locally cherty, commonly very fossiliferous, exposed in a fault-bounded area along the Don River in the northeastern York Mountains (Teller quadrangle; Sains","Conodonts, corals, trilobites, brachiopods, cephalopods, gastropods, ostracodes, pelecypods, and stromatoporoids",null,"TE004","Sedimentary",null,1515,7535,null,50059]
["Teller","Ols","Limestone and shale, York terrane","Ordovician","Thin- to medium-bedded, pale-orange- to pale-yellow-brown-weathering, medium-gray to dark-gray limestone, dolomitic limestone, and dolostone with local shale and chert nodules. Ols forms subdued slopes within, north of, and east of the York Mountains; it","Conodonts, cephalopods, graptolites, gastropods, and trilobites",null,"TE004","Sedimentary",null,1505,7541,null,50036]
["Teller","SOul","Limestone and dolostone, undifferentiated, York terrane","Silurian and Ordovician","Carbonate rocks equivalent to Ols and (or) SOdl of this map, but less well studied than those units; exposed in two small fault-bounded areas in the central part of the Teller quadrangle. The western exposure is dolostone with corals of Late Ordovician (","Contains long-ranging conodonts, domal to laminar stromatoporoids, and diverse tabulate and rugose corals of Silurian, probably late Llandovery-Wenlock, age",null,"TE004","Sedimentary",null,1506,7541,null,50040]
["Teller","Oal","Argillaceous limestone and limestone","Ordovician","Thin-bedded, argillaceous, silty and (or) dolomitic limestone, lesser massive micritic limestone, and local chert; rocks are light gray to medium gray and weather light gray to orange to tan. The unit is widely exposed in and adjacent to the York Mountai","Conodonts, brachiopods, gastropods, and trilobite fragments (Sainsbury, 1969b); echinoderm debris, calcareous sponge spicules, and possible calcispheres were noted in thin sections. Stromatolites",null,"TE004","Sedimentary",null,1503,7555,null,50030]
["Teller","Oim","Impure chlorite marble, Nome Complex","Ordovician","Buff- to orange-weathering chlorite-, white mica-, and albite-bearing calcite marble that underlies rounded hills. The unit crops out poorly; rare outcrops show well-foliated impure marble to calcareous schist. Impurities are most commonly chlorite and a",null,null,"TE004","Metamorphic",null,1524,7750,null,50043]
["Teller","OZl","Limestone and dolomitic limestone, York terrane","Ordovician through Proterozoic","Light-gray- to grayish-orange-weathering, medium-light-gray to medium-dark-gray limestone and dolomitic limestone that occurs widely in the western, central, and northern parts of the Teller quadrangle. The unit forms low outcrops and extensive areas of","Conodonts, chitinozoans, or acrotretid brachiopods",null,"TE004","Sedimentary",null,1501,7565,null,50037]
["Teller","Ocs","Casadepaga Schist, Nome Complex","Ordovician","Light green, silvery green and greenish-brown mafic, feldspathic, and calcareous schist. Typically occurs as frost-riven slabs and flakes that underlie rounded hills and dark greenish-black tors and rubble piles several meters across. Tors of metabasite,",null,null,"TE004","Metamorphic",null,1511,7720,null,50053]
["Teller","PzZt","Metasiltstone and phyllite, Grantley Harbor Fault Zone","Paleozoic and Proterozoic?","Metasiltstone, metasandstone, and phyllite that form a small exposure south of Grantley Harbor in the central Teller quadrangle. The unit consists of intercalated grayish-green metasiltstone to medium-grained metasandstone, in layers 1 cm to 1 m thick, g",null,null,"TE004","Metamorphic",null,1517,8670,null,50052]
["Teller","PzZl","Metalimestone, Grantley Harbor Fault Zone","Paleozoic and Proterozoic?","Thinly layered to laminated, orange and gray weathering, color-banded, white to dark gray metalimestone exposed in a small area south of Grantley Harbor in the south-central Teller quadrangle.  Layers range from a few millimeters to 6 cm thick and reflec",null,null,"TE004","Metamorphic",null,1516,8671,null,50044]
["Teller","PzZh","High-grade metasedimentary and metaigneous rocks, High-grade Metamorphic  and associated igneous rocks","Paleozoic  and Proterozoic","Brown, light brown, reddish brown, black, and gray-weathering schist and gneiss exposed in the Kigluaik, Bendeleben, and Darby Mountains. Highest-grade metamorphic assemblages are upper amphibolite to granulite grade; assemblages in all three ranges reco",null,null,"TE004","Metamorphic",null,1418,8860,null,50050]
["Teller","Pzgb","Metagabbro, York terrane","Paleozoic","Dark green to black weathering massive bodies of metagabbro exposed in rubble crop and small blocky cliffs associated with units OZt, OZp and OZl (Sainsbury, 1969b).  Throughout the unit, igneous textures are retained in thin section.  In central Teller",null,"U-Pb zircon crystallization 539±11 Ma","TE004","Metamorphic",null,1512,9410,null,50010]
["Teller","OZt","Sandstone, siltstone, and limestone, York terrane","Ordovician through Proterozoic","Gray- to orange-weathering, gray to brown, locally calcareous sandstone to siltstone, interbedded with gray to black mudstone and local limestone, exposed in the western Teller quadrangle. Beds are typically ?5 cm thick (20 cm max). Outcrop features, whi",null,null,"TE004","Sedimentary",null,1507,7575,null,50039]
["Teller","Zo","Orthogneiss, High-grade metamorphic and associated igneous rocks","Proterozoic","Pale gray-, tan- and orangish-tan-weathering outcrops and rubble fields of foliated and unfoliated metagranitic rocks that form a large, tabular, concordant body within the high-grade rocks of the Kigluaik Mountains.  Called the \"Thompson Creek orthognei",null,"U-Pb zircon ages of 555±15 Ma (TIMS; Amato and Wright, 1998) and 565±6 Ma (SHRIMP; Amato, 2004)","TE004","Metamorphic",null,1464,9470,null,50065]
["Candle","Ksy","Syenite, monzonite, and nepheline syenite","Cretaceous","Syenite, monzonite, and subordinate quartz monzonite, monzodiorite, quartz syenite, nepheline syenite and related mafic alkaline rocks of Patton and others (2005), exposed along the eastern boundary of the map area, in the Candle quadrangle (Figure 2).",null,null,"CA004","Igneous",null,4700,2535,null,50054]
["Kotzebue","Qbm","Modern beach deposits","Holocene","Modern beach deposits",null,null,"KZ002","Unconsolidated",null,110,115,null,null]
["Kotzebue","DObm","Black Marble","Devonian through Ordovician","Black to dark gray marble and subordinate dolostone which is commonly well-layered showing rythmic alteration of coarse and fine crystalline layers",null,null,"KZ002","Sedimentary",null,139,7464,null,50070]
["Kotzebue","DCks","Calc-schist","Devonian through Cambrian","Medium-grained calc schist interlayered with DObm and DCbm",null,null,"KZ002","Sedimentary",null,141,7466,null,50034]
["Kotzebue","Qs","Silt and peat","Quaternary","Silt and peat",null,null,"KZ002","Unconsolidated",null,113,122,1220,null]
["Kotzebue","Qc","Silty colluvium, undivided","Quaternary","Silty colluvium, undivided; includes slope deposits, glacial deposits highly modified by weathering, and volcanic rocks covered by a thick mantle of silt",null,null,"KZ002","Unconsolidated",null,116,107,null,null]
["Kotzebue","Qal","Alluvium, undivided","Quaternary","Alluvium, undivided",null,null,"KZ002","Unconsolidated",null,117,105,null,null]
["Kotzebue","QTv","Volcanic rocks, undivided","Quaternary and Tertiary","Volcanic rocks, undivided; Basalt and basaltic andesitic flows and associated vent deposits thoroughly fragmented by frost action",null,null,"KZ002","Igneous",null,128,450,4500,50012]
["Kotzebue","Ocs","Casadepaga schist","Ordovician","Light green and greenish-brown mafic- and calcareous-rich schist",null,null,"KZ002","Metamorphic",null,143,7720,null,50053]
["Kotzebue","OCx","Mixed unit","Ordovician, Cambrian","Interlayered pure and impure marble, quartz-graphite schist, and lesser pelite, calc-schist, and mafic schist",null,null,"KZ002","Metamorphic",null,144,7467,null,50006]
["Kotzebue","Pzim","Impure marble","Paleozoic","Buff to orange weathering impure marble containing white mica, chlorite, albite, quartz and graphite; probably facies equivalent of the impure chlorite marble unit (Oim)",null,null,"KZ002","Metamorphic",null,146,7750,null,50043]
["Kotzebue","Pzm","Marble, undivided","Paleozoic","Marble, undivided",null,null,"KZ002","Metamorphic",null,148,5651,null,50045]
["Kotzebue","Pzd","Dolostone, undivided","Paleozoic","Dolostone, undivided",null,null,"KZ002","Sedimentary",null,149,5652,null,50041]
["Kotzebue","Pzg","Granitic orthogneiss","Paleozoic","Granitic orthogneiss",null,null,"KZ002","Metamorphic",null,151,7250,null,50068]
["Kotzebue","Qs","Silt and peat","Quaternary","Silt and peat",null,null,"KZ003","Unconsolidated",null,300,122,1220,null]
["Kotzebue","Qc","Silty colluvium, undivided","Quaternary","Silty colluvium, undivided; includes slope deposits, glacial deposits highly modified by weathering, and volcanic rocks covered by a thick mantle of silt",null,null,"KZ003","Unconsolidated",null,301,107,null,null]
["Kotzebue","QTv","Volcanic rocks, undivided","Quaternary and Tertiary","Volcanic rocks, undivided; Basalt and basaltic andesitic flows and associated vent deposits thoroughly fragmented by frost action",null,null,"KZ003","Igneous",null,302,450,4500,50012]
["Kotzebue","Oim","Impure chlorite marble","Ordovician","Buff to orange weathering impure marble characterized by lenses and layers of chlorite-albite schist",null,null,"KZ003","Sedimentary",null,303,7750,null,50043]
["Kotzebue","OCx","Mixed unit","Ordovician, Cambrian","Interlayered pure and impure marble, quartz-graphite schist, and lesser pelite, calc-schist, and mafic schist",null,null,"KZ003","Metamorphic",null,304,7467,null,50006]
["Kotzebue","DCks","Calc-schist","Devonian through Cambrian","Medium-grained calc schist interlayered with DObm and DCbm",null,null,"KZ003","Sedimentary",null,308,7466,null,50034]
["Kotzebue","Pzd","Dolostone, undivided","Paleozoic","Dolostone, undivided",null,null,"KZ003","Sedimentary",null,313,5652,null,50041]
["Kotzebue","Pzg","Granitic orthogneiss","Paleozoic","Granitic orthogneiss",null,null,"KZ003","Metamorphic",null,314,7250,null,50068]
["Kotzebue","Oc","Casadepaga schist","Ordovician","Light green and greenish-brown mafic- and calcareous-rich schist\rAppears as unit Ocs in source BN002.",null,null,"KZ003","Metamorphic",null,315,7720,null,50053]
["Kotzebue","Pzm","Marble, undivided","Paleozoic","Marble, undivided",null,null,"KZ003","Metamorphic",null,316,5651,null,50045]
["Kotzebue","DCbm","Black marble","Devonian through Cambrian","Black to dark gray marble and subordinate impure fissile marble; may show rhythmic alteration of purer, coarse crystalline marble and more impure, fine crystalline layers; mafic dikes and plugs common",null,null,"KZ003","Sedimentary",null,321,7464,null,50070]
["Kotzebue","Qs","Surficial deposits, undivided","Quaternary","Frost-rived rubble on slopes and broad low ridges; glacial moraine; glacially deposited sand, gravel, and boulders; fluvial gravel and sand; marine and fluvial terrace deposits; wetlands",null,null,"KZ005","Unconsolidated",null,500,100,1000,50001]
["Kotzebue","MzPzm","Metamorphosed mafic rocks and serpentinite, Kugruk Fault zone","Mesozoic and Paleozoic?","A tectonic assemblage of metagabbro, metabasalt, amphibolite, serpentinite, and minor chert, exposed in rubble fields and poor outcrops along the trend of the Kugruk fault zone.  Mafic rocks within the fault zone include minor unmetamorphosed (but altere",null,null,"KZ005","Tectonite",null,501,4990,null,50027]
["Kotzebue","QTv","Volcanic rocks, undivided","Quaternary and Tertiary","Volcanic rocks, undivided; Basalt and basaltic andesitic flows and associated vent deposits thoroughly fragmented by frost action",null,null,"KZ004","Igneous",null,400,450,4500,50012]
["Shishmaref","Qs","Surficial deposits, undivided","Quaternary","Surficial deposits, undivided",null,null,"SF002","Unconsolidated",null,100,100,1000,50001]
["Shishmaref","Qs","Barrier islands","Quaternary","Barrier islands",null,null,"SF002","Unconsolidated",null,115,115,1150,null]
["Shishmaref","Qs","Surficial deposits, undivided","Quaternary","Frost-rived rubble on slopes and broad low ridges; glacial moraine; glacially deposited sand, gravel, and boulders; fluvial gravel and sand; marine and fluvial terrace deposits; wetlands",null,null,"SF003","Unconsolidated",null,1449,100,1000,50001]