“QUAD”, “LATDEG”, “LATMIN”, “LATDIR”, “LONGDEG”, “LONGMIN”, “LONGDIR”, “SAMPLE”, “ROCK_TYPE”, “METHOD”, “MINERAL”, “AGE”, “COMMENT”, “REFERENCE”, “LATITUDE”, “LONGITUDE”, “ERROR”, “REC_NO”, “NSACLASS”
Blying Sound,59,42.4,N,149,31.4,W,BS-1,Granite,K-Ar,Biotite,61,"Granite of Harding Icefield region, southern tip of Aialik Peninsula, recalculated with new Constants (Steiger and Jager, 1977).","Tysdal and Case, 1979; Lytwyn and others, 2000",59.70666667,149.5233333,1.8,299,1320
Blying Sound,59,42.4,N,149,31.4,W,BS-1,Granite,K-Ar,Muscovite,56,"Granite of Harding Icefield region, southern tip of Aialik Peninsula, recalculated with new Constants (Steiger and Jager, 1977).","Tysdal and Case, 1979; Lytwyn and others, 2000",59.70666667,149.5233333,1.6,300,1320
Cordova,60,27.9,N,145,17.94,W,67APr 1,Granitic rock,K-Ar,Phlogopite,51.6,Location revised,"Winkler and Plafker, 1981, Plafker and others, 1985; Nelson and others, 1985",60.465,145.299,2,420,1300
Cordova,60,29.3,N,144,23.1,W,71APr 25C,Granitic rock,K-Ar,Hornblende,53.5,,"Winkler and Plafker, 1981, Plafker et al, 1985; Nelson and others, 1985",60.48833333,144.385,1.6,421,1300
Cordova,60,29.3,N,144,23.7,W,Cordova1,Granodiorite,K-Ar,Biotite,52.2,,"Tysdal et al, 1976,  Plafker and Lanphere, 1974,  Plafker, 1974",60.48833333,144.395,,422,1300
Cordova,60,32.3,N,145,11.2,W,85APr 140,Dacite,K-Ar,Whole-rock,47.23,Dacite porphyry,"Plafker, written communication, 1986",60.53833333,145.1866667,,423,1300
Cordova,60,33.4,N,145,45.1,W,72APr 2A3,Basalt,K-Ar,Whole-rock,43,Recalculated with 1976 constants,"Plafker, written communication, 1986",60.55666667,145.7516667,6.1,424,1135
Cordova,60,34.4,N,145,15.1,W,84APr 9,Granodiorite,K-Ar,Biotite,51.4,,"Plafker, written communication, 1986",60.57333333,145.2516667,1.5,425,1300
Cordova,60,36.6,N,144,11.4,W,71APr 20B,Granitic rock,K-Ar,Hornblende,50.6,,"Winkler and Plafker, 1981; Nelson and others, 1985",60.61,144.19,1.5,426,1300
Cordova,60,39.7,N,144,10.7,W,71APr 20C,Tonalite,K-Ar,Biotite,50.9,,"Winkler and Plafker, 1981; Nelson and others, 1985",60.66166667,144.1783333,1.5,427,1300
Cordova,60,41.8,N,145,31.1,W,85ANk 96B,Gabbro,K-Ar,Hornblende,64.5,,"Plafker, written communication, 1986; Winkler and Plafker, 1993",60.69666667,145.5183333,2.1,428,1380
Cordova,60,42.1,N,145,29.2,W,84APr 8,Granodiorite,K-Ar,Biotite,52.3,,"Plafker, written communication, 1986",60.70166667,145.4866667,1.6,429,1300
Cordova,60,42.1,N,145,29.2,W,84APr 8,Granodiorite,K-Ar,Hornblende,49.9,Minimum age,"Plafker, written communication, 1986",60.70166667,145.4866667,1.5,430,1300
Cordova,60,42.4,N,146,7.7,W,71APr 22c,Granodiorite,K-Ar,Biotite,53.2,Location revised,"Winkler et al, 1981; Nelson and others, 1985",60.70666667,146.1283333,1.6,431,1300
Cordova,60,42.4,N,146,7.7,W,71APr 22c,Granodiorite,K-Ar,Hornblende,50.5,Location revised,"Winkler and Plafker, 1981, Plafker et al, 1985; Nelson and others, 1985",60.70666667,146.1283333,1.5,432,1300
Cordova,60,52.05,N,146,10.15,W,71APr 23A,Amphibolite,K-Ar,Hornblende,47.6,"Greenschist facies amphibolite, location revised","Winkler and Plafker, 1981; Nelson and others, 1985",60.8675,146.1691667,1.4,433,951
Cordova,60,58.5,N,146,43.1,W,83APr 312,Diabase,K-Ar,Whole-rock,130,"Johnstone Cove, excess argon, recalculated with 1976 constants","Plafker, written communication, 1986",60.975,146.7183333,14,434,1135
Kenai,60,4.1,N,151,38.8,W,7-14-73-3,Ash,Fission-track,Zircon,8.5,"Kenai Peninsula, Sterling Formation.  Age revised in Turner and others (1980).","Triplehorn et al, 1977; Turner et al, 1980a",60.06833333,151.6466667,1,679,540
Kenai,60,4.1,N,151,38.8,W,7-14-73-3,Ash,K-Ar,Plagioclase,8.9,"Kenai Peninsula, Sterling Formation.  Age revised in Turner and others (1980).","Triplehorn et al, 1977; Turner et al, 1980a",60.06833333,151.6466667,1,680,540
Kenai,60,6.8,N,152,35.1,W,62ALe 6e,Quartz diorite,K-Ar,Biotite,156.6,Rounded granitic boulders within the Chisik Conglomerate member of the Naknek Formation,"Detterman et al, 1965,  Magoon et al, 1976",60.11333333,152.585,,681,3016
Kenai,60,6.8,N,152,35.1,W,62ALe 6e,Quartz diorite,K-Ar,Hornblende,159.7,"Rounded granitic boulders within the Chisik Conglomerate member of the Naknek Formation, recalucated age w/Steiger and Jager (1977) constants","Detterman et al, 1965,  Magoon et al, 1976, Wilson and others, 2006",60.11333333,152.585,,682,3016
Kenai,60,11.15,N,151,27.7,W,7-13-73-9,Ash,K-Ar,Plagioclase,7,"Kenai Peninsula, location revised, Sterling Formation.  Age revised in Turner and others (1980).","Triplehorn et al, 1977; Turner et al, 1980a",60.18583333,151.4616667,0.7,683,540
Kenai,60,12.3,N,151,26,W,7-13-73-6,Ash,K-Ar,Hornblende,7.4,"Kenai Peninsula, location revised, Sterling Formation.  Age revised in Turner and others (1980).","Triplehorn et al, 1977; Turner et al, 1980a",60.205,151.4333333,0.7,684,540
Kenai,60,12.3,N,151,26,W,7-13-73-6,Ash,K-Ar,Plagioclase,8.8,"Kenai Peninsula, location revised, Sterling Formation.  Age revised in Turner and others (1980).","Triplehorn et al, 1977; Turner et al, 1980a",60.205,151.4333333,0.5,685,540
Kenai,60,14.15,N,151,24.05,W,DT75-200,Ash,Fission-track,Zircon,6.6,"Sterling Formation, Clamgulchian Stage","Turner et al, 1980a",60.23583333,151.4008333,0.7,686,540
Kenai,60,15.2,N,152,53.16,W,62ALe 5,Granodiorite,K-Ar,Biotite,174,"Alaska-Aleutian Range batholith, recalc. with 1976 constants","Detterman et al, 1965, Reed and Lanphere, 1969, 1972, Magoon et al, 1976",60.25333333,152.886,,687,3404
Kenai,60,15.2,N,152,53.16,W,62ALe 5,Granodiorite,K-Ar,Hornblende,171.9,"Alaska-Aleutian Range batholith, recalc. with 1976 constants","Detterman et al, 1965, 1976, Magoon et al, 1976, Reed and Lanphere, 1969, 1972",60.25333333,152.886,,688,3404
Kenai,60,12.3,N,151,26.1,W,DT75-201,Tuff,K-Ar,Hornblende,5,"Crystal tuff, Sterling Formation.  Mean of 2 splits","Turner et al, 1980a",60.205,151.435,0.8,689,540
Kenai,60,12.3,N,151,26.1,W,DT75-201,Tuff,K-Ar,Plagioclase,5.9,"Crystal tuff, Sterling Formation.  Mean of 2 splits","Turner et al, 1980a",60.205,151.435,0.5,690,540
Kenai,60,35.4,N,152,46.8,W,70AR 175,Granodiorite,K-Ar,Biotite,97.8,"Age recalculated with 1976 constants.  Age suspect, may be reset by younger plutonism.","Reed and Lanphere, 1972, 1973,  Magoon et al, 1976,  Detterman et al, 1976",60.59,152.78,2.8,691,3404
Kenai,60,36.9,N,152,37.7,W,70AR 177,Quartz diorite,K-Ar,Biotite,163,Age recalculated with 1976 constants,"Reed and Lanphere, 1972, 1973,  Magoon et al, 1976,  Detterman et al, 1976",60.615,152.6283333,4.7,692,3404
Kenai,60,36.9,N,152,37.7,W,70AR 177,Quartz diorite,K-Ar,Hornblende,161,Age recalculated with 1976 constants,"Reed and Lanphere, 1972, 1973, Detterman et al, 1976, Magoon et al, 1976",60.615,152.6283333,4.7,693,3404
Kenai,60,40.6,N,152,27.1,W,70AR 178,Granodiorite,K-Ar,Biotite,165,Age recalculated with 1976 constants,"Reed and Lanphere, 1972, 1973,  Magoon et al, 1976,  Detterman et al, 1976",60.67666667,152.4516667,4.8,694,3404
Kenai,60,40.6,N,152,27.1,W,70AR 178,Granodiorite,K-Ar,Hornblende,162,Age recalculated with 1976 constants,"Reed and Lanphere, 1972, 1973,  Magoon et al, 1976",60.67666667,152.4516667,4.8,695,3404
Kenai,60,44.6,N,152,57.5,W,70AR 146,Granodiorite,K-Ar,Biotite,68.2,Age recalculated with 1976 constants,"Reed and Lanphere, 1972, 1973,  Magoon et al, 1976",60.74333333,152.9583333,1.9,696,1660
Kenai,60,44.9,N,152,48.7,W,70AR 173,Diorite,K-Ar,Biotite,67.2,Age recalculated with 1976 constants,"Reed and Lanphere, 1972, 1973,  Magoon et al, 1976",60.74833333,152.8116667,1.9,697,2430
Kenai,60,44.9,N,152,48.7,W,70AR 173,Diorite,K-Ar,Hornblende,71.5,Age recalculated with 1976 constants,"Reed and Lanphere, 1972, 1973,  Magoon et al, 1976",60.74833333,152.8116667,2.1,698,2430
Kenai,60,48.2,N,152,21.3,W,66AR 1464,Quartz monzonite,K-Ar,Biotite,159,Age recalculated with 1976 constants,"Reed and Lanphere, 1969, 1972, 1973,  Magoon et al, 1976,  Detterman et al, 1976",60.80333333,152.355,,699,3404
Kenai,60,48.3,N,152,29.5,W,70AR 156,Diorite,K-Ar,Hornblende,146,Age recalculated with 1976 constants,"Reed and Lanphere, 1972, 1973,  Magoon et al, 1976,  Detterman et al, 1976",60.805,152.4916667,4.3,700,3404
Kenai,60,49.9,N,152,34.9,W,70AR 158,Quartz diorite,K-Ar,Biotite,70,Age recalculated with 1976 constants,"Reed and Lanphere, 1972, 1973,  Magoon et al, 1976,  Detterman et al, 1976",60.83166667,152.5816667,2,701,2410
Kenai,60,49.9,N,152,34.9,W,70AR 158,Quartz diorite,K-Ar,Hornblende,74.4,Age recalculated with 1976 constants,"Reed and Lanphere, 1972, 1973,  Magoon et al, 1976,  Detterman et al, 1976",60.83166667,152.5816667,2.2,702,2410
Kenai,60,51.9,N,152,40.8,W,70AR 147,Granodiorite,K-Ar,Biotite,65.4,Age recalculated with 1976 constants,"Reed and Lanphere, 1972, 1973,  Magoon et al, 1976",60.865,152.68,1.8,703,1660
Kenai,60,51.9,N,152,40.8,W,70AR 147,Granodiorite,K-Ar,Hornblende,67.6,Age recalculated with 1976 constants,"Reed and Lanphere, 1972, 1973,  Magoon et al, 1976",60.865,152.68,2,704,1660
Kenai,60,56.6,N,152,51.7,W,70AR 140,Granodiorite,K-Ar,Biotite,65.1,Age recalculated with 1976 constants,"Reed and Lanphere, 1972, 1973,  Magoon et al, 1976,  Detterman et al, 1976",60.94333333,152.8616667,1.9,705,1660
Kenai,60,56.6,N,152,51.7,W,70AR 140,Granodiorite,K-Ar,Hornblende,70.5,Age recalculated with 1976 constants,"Reed and Lanphere, 1972, 1973,  Magoon et al, 1976",60.94333333,152.8616667,2,706,1660
Kenai,60,59.1,N,152,16.8,W,70AR 179,Quartz diorite,K-Ar,Biotite,71.3,Age recalculated with 1976 constants,"Reed and Lanphere, 1972, 1973,  Magoon et al, 1976,  Detterman et al, 1976",60.985,152.28,2,707,2410
Kenai,60,59.1,N,152,16.8,W,70AR 179,Quartz diorite,K-Ar,Hornblende,70.6,Age recalculated with 1976 constants,"Reed and Lanphere, 1972, 1973,  Magoon et al, 1976,  Detterman et al, 1976",60.985,152.28,2.1,708,2410
Middleton Island,59,54.8,N,144,22.9,W,72APr 76A1,Basalt,K-Ar,Whole-rock,31.2,Basaltic dike rock from Kayak Island.  Analytical data does not match reported age.,"Winkler and Plafker, 1981; Nelson and others, 1985",59.91333333,144.3816667,1.3,883,1080
Seldovia,59,0.2,N,151,42.4,W,7AF23-9,Schist,K-Ar,Muscovite,194.7,"Quartz-mica schist, approximate location, recalculated using Steiger and Jager, 1977 constants","Carden et al, 1977",59.00333333,151.7066667,5.7,1262,3610
Seldovia,59,22.2,N,151,48.6,W,74PG79,Schist,K-Ar,Muscovite,196.1,"Quartz-mica schist, approximate location, recalculated using Steiger and Jager, 1977 constants","Carden et al, 1977",59.37,151.81,5.8,1263,3610
Seldovia,59,27.7,N,151,42.4,W,SD3-3,Greenschist,K-Ar,Actinolite,195,"Approximate corrected location, recalculated using Steiger and Jager, 1977 constants","Forbes and Lanphere, 1973, Magoon et al, 1976, Carden et al, 1977",59.46166667,151.7066667,11,1264,3610
Seldovia,59,27.7,N,151,42.4,W,SD3-3,Greenschist,K-Ar,Chlorite,185.1,"Approximate corrected location, recalculated using Steiger and Jager, 1977 constants","Forbes and Lanphere, 1973, Magoon et al, 1976, Carden et al, 1977",59.46166667,151.7066667,8.3,1265,3610
Seldovia,59,27.7,N,151,42.4,W,SD3-3,Greenschist,K-Ar,Mica,192.3,"Approximate corrected location, white mica concentrate, recalculated using Steiger and Jager, 1977 constants","Forbes and Lanphere, 1973,  Magoon et al, 1976, Carden et al, 1977",59.46166667,151.7066667,10,1266,3610
Seldovia,59,27.7,N,151,42.4,W,74AF4B.1,Schist,K-Ar,Amphibole,166.8,"Blueschist, crossite date, approximate location, recalculated using Steiger and Jager, 1977 constants","Carden et al, 1977",59.46166667,151.7066667,4.9,1267,3610
Seldovia,59,27.7,N,151,42.4,W,74AF23-10,Schist,K-Ar,Amphibole,188.6,"Amphibole-mica schist, approximate location, recalculated using Steiger and Jager, 1977 constants","Carden et al, 1977",59.46166667,151.7066667,5.5,1268,3610
Seldovia,59,27.7,N,151,42.4,W,74AF23-10,Schist,K-Ar,Muscovite,196.6,"Amphibole-mica schist, approximate location, recalculated using Steiger and Jager, 1977 constants","Carden et al, 1977",59.46166667,151.7066667,5.8,1269,3610
Seldovia,59,28,N,151,44,W,SD9-3,Schist,K-Ar,Crossite,157.8,"Blueschist, crossite date, argon loss?, approximate location, recalculated using Steiger and Jager, 1977 constants","Forbes and Lanphere, 1973,  Magoon et al, 1976, Carden et al, 1977",59.46666667,151.7333333,4.8,1270,3610
Seldovia,59,28,N,151,44,W,SD9-3,Schist,K-Ar,PH,192.9,"Blueschist, possible argon loss, approximate location, recalculated using Steiger and Jager, 1977 constants","Forbes and Lanphere, 1973,  Magoon et al, 1976, Carden et al, 1977",59.46666667,151.7333333,5.7,1271,3610
Seldovia,59,46.1,N,151,9.45,W,7-21-73-1,Ash,Fission-track,Zircon,8.8,"Kenai Peninsula, Beluga? Formation.  Age revised in Turner and others (1980).","Triplehorn et al, 1977; Turner et al, 1980a",59.76833333,151.1575,1,1272,545
Seldovia,59,46.1,N,151,9.45,W,7-21-73-1,Ash,K-Ar,Plagioclase,11.3,"Kenai Peninsula, Beluga? Formation.  Age revised in Turner and others (1980).","Triplehorn et al, 1977; Turner et al, 1980a",59.76833333,151.1575,0.7,1273,545
Seldovia,59,42.35,N,151,16.8,W,7-21-73-5,Ash,Fission-track,Zircon,8.1,"Kenai Peninsula, Beluga? Formation.  Age revised in Turner and others (1980).","Triplehorn et al, 1977; Turner et al, 1980a",59.70583333,151.28,1,1274,545
Seldovia,59,42.2,N,151,16.7,W,DT75-203,Tuff,Fission-track,Apatite,12.9,"Crystal vitric tuff mostly altered to clay, Beluga Fm.","Turner et al, 1980a",59.70333333,151.2783333,5.1,1275,545
Seldovia,59,42.2,N,151,16.7,W,DT75-203,Tuff,K-Ar,Plagioclase,8.8,"Crystal vitric tuff mostly altered to clay, Beluga Formation.  Mean of 2 analyses.","Turner et al, 1980a",59.70333333,151.2783333,0.9,1276,545
Seldovia,59,42.6,N,151,14.3,W,DT75-202,Tuff,K-Ar,Plagioclase,7.2,"Crystal vitric tuff, Beluga Formation","Turner et al, 1980a",59.71,151.2383333,1.3,1277,545
Seldovia,59,42.7,N,151,16.1,W,DT75-204,Ash,Fission-track,Zircon,7.6,Beluga Formation,"Turner et al, 1980a",59.71166667,151.2683333,0.7,1278,545
Seldovia,59,42.7,N,151,16.1,W,DT75-204,Ash,K-Ar,Plagioclase,8.1,Beluga Formation.  Mean of 2 analyses,"Turner et al, 1980a",59.71166667,151.2683333,0.7,1279,545
Seldovia,59,45.7,N,151,10.15,W,7-22-73-4,Ash,Fission-track,Zircon,8.1,"Kenai Peninsula, Beluga? Formation.  Age revised in Turner and others (1980).","Triplehorn et al, 1977; Turner et al, 1980a",59.76166667,151.1691667,1,1280,545
Seldovia,59,45.7,N,151,10.15,W,7-22-73-4,Ash,K-Ar,Plagioclase,8.1,"Kenai Peninsula, Beluga? Formation.  Age revised in Turner and others (1980).","Triplehorn et al, 1977; Turner et al, 1980a",59.76166667,151.1691667,0.8,1281,545
Seldovia,59,46.2,N,151,8,W,DT75-210,Ash,K-Ar,Plagioclase,7.2,"Sterling Formation, Clamgulchian Stage","Turner et al, 1980a",59.77,151.1333333,0.6,1282,540
Seldovia,59,46.2,N,151,8,W,DT75-211,Ash,Fission-track,Zircon,5.4,20-40m stratigraphically above DT75-210.  Sterling Formation.,"Turner et al, 1980a",59.77,151.1333333,0.6,1283,540
Seldovia,59,46.2,N,151,8,W,DT75-211,Ash,K-Ar,Plagioclase,11.7,"Also dated 14.1 m.y., 20-40m stratigraphically above DT75-210.  Sterling Formation; age may be too old due to detrital contamination.","Turner et al, 1980a",59.77,151.1333333,0.9,1284,540
Seldovia,59,46.2,N,151,8,W,DT75-212,Ash,K-Ar,Plagioclase,32.2,"Also dated 30.1 m.y., 33m stratigraphically above DT75-211.  Sterling Formation; age may be too old due to detrital contamination.","Turner et al, 1980a",59.77,151.1333333,1.9,1285,540
Seldovia,59,47.8,N,151,6.5,W,DT75-209b,Tuff,K-Ar,Plagioclase,9.1,"Also dated at 8.2 Ma.  Sterling? Formation, age may be too old due to detrital contamination.","Turner et al, 1980a",59.79666667,151.1083333,0.7,1286,540
Seldovia,59,47.8,N,151,6.7,W,DT75-206,Ash,Fission-track,Zircon,5.6,"Composite of four thin beds, Sterling Formation","Turner et al, 1980a",59.79666667,151.1116667,0.9,1287,540
Seldovia,59,47.8,N,151,6.7,W,DT75-206,Ash,K-Ar,Plagioclase,4.6,"Also dated at 8.4 m.y., composite of four thin beds.","Turner et al, 1980a",59.79666667,151.1116667,0.7,1288,540
Seldovia,59,47.8,N,151,6.7,W,DT75-207,Tuff,Fission-track,Zircon,4.9,24m stratigraphically higher than DT75-206.  Sterling Formation,"Turner et al, 1980a",59.79666667,151.1116667,0.8,1289,540
Seldovia,59,47.8,N,151,6.7,W,DT75-207,Tuff,K-Ar,Plagioclase,7.6,24m stratigraphically higher than DT75-206.  Believed to be too old due to detrital contamination.,"Turner et al, 1980a",59.79666667,151.1116667,0.6,1290,540
Seldovia,59,47.8,N,151,6.7,W,DT75-208,Tuff,K-Ar,Hornblende,4.7,35m stratigraphically higher than DT75-206.  Sterling Formation,"Turner et al, 1980a",59.79666667,151.1116667,0.6,1291,540
Seldovia,59,47.8,N,151,6.7,W,DT75-208,Tuff,K-Ar,Plagioclase,4.2,35m stratigraphically higher than DT75-206.  Sterling Formation.,"Turner et al, 1980a",59.79666667,151.1116667,1.4,1292,540
Seldovia,59,49.4,N,151,2.5,W,6-25-77-1,Ash,K-Ar,Plagioclase,6.9,"Sterling Formation, Clamgulchian Stage","Turner et al, 1980a",59.82333333,151.0416667,0.5,1293,540
Kenai,60.7167,,,152.6667,,,78AR 290DK,Andesite,K-Ar,Whole-rock,0.763,Dark band in banded andesite,"Reed, Lanphere and Miller, 1992",60.7167,152.6667,0.017,3493,402
Kenai,60.7167,,,152.6667,,,78AR 290LT,Andesite,K-Ar,Whole-rock,0.627,Light band in banded andesite,"Reed, Lanphere and Miller, 1992",60.7167,152.6667,0.024,3494,402
Kenai,60.77,,,152.7,,,90AR 99,Andesite,K-Ar,Whole-rock,0.887,Estimated latitude and longitude,"Reed, Lanphere and Miller, 1992",60.77,152.7,0.015,3495,402
Seldovia,59,58.645,N,150,9.667,W,92AKu 71b,Granodiorite,40/39 Plateau,Biotite,53.2,"Tustemena pluton - medium-grained, nonfoliated biotite granodiorite.   Sample run by Lux.","Bradley and others, 1999, 2000",59.97741667,150.1611167,1.1,3652,1320
Seldovia,59,28.4,N,150,20.2,W,88ACy 9,Granodiorite,40/39 Isochron,Biotite,54.2,"Nuka pluton - medium- to coarse-grained granodiorite containing biotite, muscovite, and rare hornblende.  Sample run by Clendenen and Heizler.","Bradley and others, 1999; 2000; Lytwyn and others, 2000",59.47333333,150.3366667,0.08,3653,1320
Seldovia,59,23.6,N,150,39.9,W,88ADw 230,Intermediate dike,40/39 Isochron,Hornblende,57,A leucocratic porphyry dike containing feldspar and hornblende phenocrysts that cuts the McHugh Complex near the head of Seldovia Bay.  Sample run by Clendenen and Heizler.,"Bradley and others, 1992; 1999; 2000",59.39333333,150.665,0.22,3654,1011
Seldovia,59,23.63,N,151,13.117,W,93ASB 66,Basaltic andesite,40/39 Plateau,Hornblende,115,Hornblende-phyric basaltic andesite dike cutting graywacke of McHugh Complex 4km SE of the head of Tutka Bay. Sample run by Lux.,"Bradley and others, 1999; 2000",59.39383333,151.2186167,1.7,3655,2401
Blying Sound,59,47.5,N,149,59.5,W,91AKu 3 #1,Granodiorite,40/39 Plateau,Biotite,51.1,"Aialik pluton, Harris Bay.  One of three biotite analyses.","Bradley and others, 2000",59.79166667,149.9916667,0.5,3664,1320
Seldovia,59,28.4,N,150,20.2,W,88ACy 9,Granodiorite ,U-Pb ,Monazite,56,"Nuka pluton - medium- to coarse-grained granodiorite containing biotite, muscovite, and rare hornblende.  Sample run by Parrish.","Bradley and others, 2000",59.47333333,150.3366667,0.5,3674,1320
Seldovia,59,52.967,N,150,27.83,W,91ADw 55g,Granodiorite ,40/39 Plateau,Biotite ,54.2,"Chernof Stock - nonfoliated, medium-grained biotite granodiroite.  Sample run by Lux.","Bradley and others, 2000",59.88278333,150.4638333,1.1,3675,1320
Blying Sound,59,47.5,N,149,59.5,W,91AKu 3,Granodiorite ,40/39 Average,Biotite ,52.2,Aiallik pluton - medium- to coarse-grained granodiorite.  Sample run by Layer.  Quadrangle incorrect in source,"Bradley and others, 2000",59.79166667,149.9916667,0.9,3677,1300
Blying Sound,59,53.4,N,149,22.4,W,95TD 2b #3,Granodiorite ,40/39 Plateau,Biotite ,53.4,Hive Island pluton - granodiorite.  One of three biotite analyses run by Layer.,"Bradley and others, 2000",59.89,149.3733333,0.5,3678,1320
Seldovia,59,32.567,N,150,10.833,W,92PH 454B,Granite,40/39 Plateau,Biotite ,53.7,"Thunder Bay granitic sill, slightly disturbed spectrum","Haeussler and others 1995;  Bradley and others, 2000",59.54278333,150.18055,0.1,3679,1320
Seldovia,59,46.2,N,151,8,W,DT75-211,Ash,K-Ar,Plagioclase,14.1,"Also dated 11.7 m.y., 20-40m stratigraphically above DT75-210.  Sterling Formation; age may be too old due to detrital contamination.","Turner et al, 1980a",59.77,151.1333333,1.1,3684,540
Seldovia,59,47.8,N,151,6.5,W,DT75-209b,Tuff,K-Ar,Plagioclase,8.2,Also dated at 9.1 Ma.  Sterling Formation; age may be too old due to detrital contamination.,"Turner et al, 1980a",59.79666667,151.1083333,0.8,3685,540
Seldovia,59,46.2,N,151,8,W,DT75-212,Ash,K-Ar,Plagioclase,30.1,"Also dated 32.2 m.y., 33m stratigraphically above DT75-211.  Sterling Formation; age may be too old due to detrital contamination.","Turner et al, 1980a",59.77,151.1333333,1.8,3686,540
Seldovia,59,47.8,N,151,6.7,W,DT75-206,Ash,K-Ar,Plagioclase,8.4,"Also dated at 4.6 m.y., composite of four thin beds.  Sterling Formation age may be too old due to detrital contamination.","Turner et al, 1980a",59.79666667,151.1116667,0.7,3687,540
Seldovia,59,47.8,N,151,6.7,W,DT75-207,Tuff,K-Ar,Plagioclase,7.5,24m stratigraphically higher than DT75-206.  Believed to be too old due to detrital contamination.,"Turner et al, 1980a",59.79666667,151.1116667,0.6,3688,540
Blying Sound,59.9286,,N,149.3242,,W,81BS 001A,Metatuff,K-Ar,Whole Rock,54.4,Map unit Kvt on Fox Island.,"Miller, 1984 (M.L. Silberman, USGS, unpub. data, 1982)",59.9286,149.3242,2.7,3691,2705
Blying Sound,59,57.1833,N,149,16.0833,W,81BS 011A,Basalt,K-Ar,Whole Rock,49.6,,"Miller, 1984 (M.L. Silberman, USGS, unpub. data, 1982)",59.953055,149.268055,2.5,3692,1137
Blying Sound,59,57.1833,N,149,16.0833,W,81BS 011B,Basalt,K-Ar,Whole Rock,45.7,,"Miller, 1984 (M.L. Silberman, USGS, unpub. data, 1982)",59.953055,149.268055,2.3,3693,1137
Blying Sound,59,53,N,149,16.6833,W,81BS 013K,Basalt,K-Ar,Whole Rock,47.3,,"Miller, 1984 (M.L. Silberman, USGS, unpub. data, 1982)",59.88333333,149.278055,2.4,3694,1137
Seldovia,59.4479,,N,151.7145,,W,92ATi 316D,Schist,40/39 Plateau,White Mica,190.98,"Seldovia metamorphic complex, Plateau age","Bradley and Karl, 2000, A. Till (per. commun., 2007)",59.4479,151.7145,0.3,3697,3610
Seldovia,59.4547,,N,151.7153,,W,92ATi 309B,Schist,40/39 Plateau,Barroisite,191.92,"Seldovia metamorphic complex, Plateau age, qtz-wht mica-chorite schist","Bradley and Karl, 2000, A. Till (per. commun., 2007)",59.4547,151.7153,0.6,3698,3610
Seldovia,59.4547,,N,151.7153,,W,92ATi 309B,Schist,40/39 Plateau,Muscovite,191.7,"Seldovia metamorphic complex, Plateau age, qtz-wht mica-chorite schist","Bradley and Karl, 2000, A. Till (per. commun., 2007)",59.4547,151.7153,0.3,3699,3610
Cordova,60.589,,N,144.4096,,W,80ANS 148A,Granitic rock,K/Ar,Biotite,52.7,Unit Tgg south side of Miles Glacier,"Nelson and others, 1985 (Vivit, Gray, Silberman)",60.589,144.4096,1.6,3715,1300
Cordova,60.589,,N,144.4096,,W,80ANS 148A,Granitic rock,K/Ar,Hornblende,51.3,Unit Tgg south side of Miles Glacier,"Nelson and others, 1985 (Vivit, Gray, Silberman)",60.589,144.4096,2.9,3716,1300
Middleton Island,59.7969,,N,144.5864,,W,80AMH 159A,Dacite,K/Ar,Whole rock,6.2,Dacite of Cape St. Elias,"Nelson and others, 1985 (Teledyne Isotopes)",59.7969,144.5864,0.3,3717,1053
Cordova,60,40.57,N,145,29.87,W,85APr 177,Gabbro,K-Ar,Hornblended,48.5,"Altered clinopyroxene gabbro in written report, reported as hornblende gabbro on map","George Plafker, written commun., 1986; Winkler and Plafker, 1993",60.67616667,145.4978333,1.46,3724,1380
Cordova,60,0,N,144,11.75,W,72APr 22A1,Diorite,K-Ar,Hornblende,200.5,Recalculated with constants of Steiger and Jager (1977),"Plafker, written communication, 1986",60,144.1958333,29,3725,1300
Seldovia,59,19.17,N,151,17.5,W,n.a.,Felsic dike,40/39,White mica,57.3,"Port Dick prospect, hydrothermal alteration preferred date from single step (1000 degrees C) and 67.8 percent of gas","Haeussler and others, 1995",59.3195,151.2916667,0.1,3727,
Seldovia,59,32.35,N,150,28.68,W,,Not reported,40/39 Plateau,Sericite,55.6,"Valdez Group, Beauty Bay Mine, altered rock, clear sericite","Haeussler and others, 1995",59.53916667,150.478,0.1,3728,
Seldovia,59,32.35,N,150,28.68,W,,Not reported,40/39,Sericite,55.9,"Valdez Group, Beauty Bay Mine, altered rocks, gold-colored sericite.  Preferred date based on 37.2 percent of gas, disturbed spectra","Haeussler and others, 1995",59.53916667,150.478,0.1,3729,
Seldovia,59,32.567,N,150,10.8,W,,Vein,40/39 Plateau,White mica,52.9,"Thunder Bay gold occurrence, polymetalllic gold-sulfide vein","Haeussler and others, 1995",59.54278333,150.18,0.1,3730,
Blying Sound,59,47.5,N,149,59.5,W,91AKu 3 #2,Granodiorite,40/39 Plateau,Biotite,53.5,"Aialik pluton, Harris Bay.  One of three biotite analyses.","Bradley and others, 2000",59.79166667,149.9916667,0.5,3741,1320
Blying Sound,59,47.5,N,149,59.5,W,91AKu 3 #3,Granodiorite,40/39 Plateau,Biotite,49.6,"Aialik pluton, Harris Bay.  One of three biotite analyses.","Bradley and others, 2000",59.79166667,149.9916667,1.7,3742,1320
Blying Sound,59,53.4,N,149,22.4,W,95TD 2b #2,Granodiorite ,40/39 Plateau,Biotite ,53.5,Hive Island pluton - granodiorite.  One of three biotite analyses run by Layer.,"Bradley and others, 2000",59.89,149.3733333,1,3743,1320
Blying Sound,59,53.4,N,149,22.4,W,95TD 2b #1,Granodiorite ,40/39 Plateau,Biotite ,53.3,Hive Island pluton - granodiorite.  One of three biotite analyses run by Layer.,"Bradley and others, 2000",59.89,149.3733333,0.6,3744,1320
Blying Sound,59,53.4,N,149,22.4,W,95TD 2b,Granodiorite ,40/39 Average,Biotite ,53.4,Hive Island pluton - granodiorite.  Weighted mean of three biotite analyses run by Layer.,"Bradley and others, 2000",59.89,149.3733333,0.4,3745,1320
Seldovia,59,42.5,N,150,8.1,W,Paguna,Granodiorite,40/39 Plateau,n.a.,53.4,"Paguna stock, approximate location.","Bradley and others, 1999",59.70833333,150.135,1.5,3746,1320
Seldovia,59,27.7,N,151,42.4,W,74AF23-10,Schist,K-Ar,Amphibole,188.3,"Replicate analysis, Amphibole-mica schist, approximate location, 1976 constants","Carden et al, 1977",59.46166667,151.7066667,5.5,3747,3610
Seldovia,59,20.58,N,151,49.27,W,90ADW 809,Andesite,40/39 Plateau,Amphibole,58.64,"Andesite dike, might have intruded Port Graham formation near Port Graham","Lytwyn and others, 2000",59.343,151.8211667,0.52,3748,1320