{"text_format":"dbase-jsonl-2026-09-30","columns":[{"name":"QUAD","type":"character","width":16},{"name":"LATDEG","type":"number","width":7,"decimals":4},{"name":"LATMIN","type":"number","width":11,"decimals":8},{"name":"LATDIR","type":"character","width":1},{"name":"LONGDEG","type":"number","width":8,"decimals":4},{"name":"LONGMIN","type":"number","width":18,"decimals":15},{"name":"LONGDIR","type":"character","width":1},{"name":"SAMPLE","type":"character","width":10},{"name":"ROCK_TYPE","type":"character","width":17},{"name":"METHOD","type":"character","width":14},{"name":"MINERAL","type":"character","width":11},{"name":"AGE","type":"number","width":18,"decimals":15},{"name":"COMMENT","type":"character","width":172},{"name":"REFERENCE","type":"character","width":80},{"name":"LATITUDE","type":"number","width":16,"decimals":13},{"name":"LONGITUDE","type":"number","width":16,"decimals":12},{"name":"ERROR","type":"number","width":18,"decimals":15},{"name":"REC_NO","type":"number","width":4,"decimals":0},{"name":"NSACLASS","type":"number","width":4,"decimals":0}],"n_rows":122,"rows_kept":122,"cut":false,"deleted_skipped":0,"read_ended":"whole","bounds":"16MiB/16384/4096/first_that_fit","version":"dbase_level_three","encoding_class":"enc_absent","reader":"statdb_count/9"}
["Blying Sound",59.0000,42.40000000,"N",149.0000,31.400000000000000,"W","BS-1","Granite","K-Ar","Biotite",61.000000000000000,"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",59.7066666666667,149.523333333333,1.800000000000000,299,1320]
["Blying Sound",59.0000,42.40000000,"N",149.0000,31.400000000000000,"W","BS-1","Granite","K-Ar","Muscovite",56.000000000000000,"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",59.7066666666667,149.523333333333,1.600000000000000,300,1320]
["Cordova",60.0000,27.90000000,"N",145.0000,17.940000000000000,"W","67APr 1","Granitic rock","K-Ar","Phlogopite",51.600000000000000,"Location revised","Winkler and Plafker, 1981, Plafker and others, 1985; Nelson and others, 1985",60.4650000000000,145.299000000000,2.000000000000000,420,1300]
["Cordova",60.0000,29.30000000,"N",144.0000,23.100000000000000,"W","71APr 25C","Granitic rock","K-Ar","Hornblende",53.500000000000000,null,"Winkler and Plafker, 1981, Plafker et al, 1985; Nelson and others, 1985",60.4883333333333,144.385000000000,1.600000000000000,421,1300]
["Cordova",60.0000,29.30000000,"N",144.0000,23.700000000000000,"W","Cordova1","Granodiorite","K-Ar","Biotite",52.200000000000000,null,"Tysdal et al, 1976,  Plafker and Lanphere, 1974,  Plafker, 1974",60.4883333333333,144.395000000000,0,422,1300]
["Cordova",60.0000,32.30000000,"N",145.0000,11.200000000000000,"W","85APr 140","Dacite","K-Ar","Whole-rock",47.230000000000000,"Dacite porphyry","Plafker, written communication, 1986",60.5383333333333,145.186666666667,0,423,1300]
["Cordova",60.0000,33.40000000,"N",145.0000,45.100000000000000,"W","72APr 2A3","Basalt","K-Ar","Whole-rock",43.000000000000000,"Recalculated with 1976 constants","Plafker, written communication, 1986",60.5566666666667,145.751666666667,6.100000000000000,424,1135]
["Cordova",60.0000,34.40000000,"N",145.0000,15.100000000000000,"W","84APr 9","Granodiorite","K-Ar","Biotite",51.400000000000000,null,"Plafker, written communication, 1986",60.5733333333333,145.251666666667,1.500000000000000,425,1300]
["Cordova",60.0000,36.60000000,"N",144.0000,11.400000000000000,"W","71APr 20B","Granitic rock","K-Ar","Hornblende",50.600000000000000,null,"Winkler and Plafker, 1981; Nelson and others, 1985",60.6100000000000,144.190000000000,1.500000000000000,426,1300]
["Cordova",60.0000,39.70000000,"N",144.0000,10.700000000000000,"W","71APr 20C","Tonalite","K-Ar","Biotite",50.900000000000000,null,"Winkler and Plafker, 1981; Nelson and others, 1985",60.6616666666667,144.178333333333,1.500000000000000,427,1300]
["Cordova",60.0000,41.80000000,"N",145.0000,31.100000000000000,"W","85ANk 96B","Gabbro","K-Ar","Hornblende",64.500000000000000,null,"Plafker, written communication, 1986; Winkler and Plafker, 1993",60.6966666666667,145.518333333333,2.100000000000000,428,1380]
["Cordova",60.0000,42.10000000,"N",145.0000,29.200000000000000,"W","84APr 8","Granodiorite","K-Ar","Biotite",52.300000000000000,null,"Plafker, written communication, 1986",60.7016666666667,145.486666666667,1.600000000000000,429,1300]
["Cordova",60.0000,42.10000000,"N",145.0000,29.200000000000000,"W","84APr 8","Granodiorite","K-Ar","Hornblende",49.900000000000000,"Minimum age","Plafker, written communication, 1986",60.7016666666667,145.486666666667,1.500000000000000,430,1300]
["Cordova",60.0000,42.40000000,"N",146.0000,7.700000000000000,"W","71APr 22c","Granodiorite","K-Ar","Biotite",53.200000000000000,"Location revised","Winkler et al, 1981; Nelson and others, 1985",60.7066666666667,146.128333333333,1.600000000000000,431,1300]
["Cordova",60.0000,42.40000000,"N",146.0000,7.700000000000000,"W","71APr 22c","Granodiorite","K-Ar","Hornblende",50.500000000000000,"Location revised","Winkler and Plafker, 1981, Plafker et al, 1985; Nelson and others, 1985",60.7066666666667,146.128333333333,1.500000000000000,432,1300]
["Cordova",60.0000,52.05000000,"N",146.0000,10.150000000000000,"W","71APr 23A","Amphibolite","K-Ar","Hornblende",47.600000000000000,"Greenschist facies amphibolite, location revised","Winkler and Plafker, 1981; Nelson and others, 1985",60.8675000000000,146.169166666667,1.400000000000000,433,951]
["Cordova",60.0000,58.50000000,"N",146.0000,43.100000000000000,"W","83APr 312","Diabase","K-Ar","Whole-rock",130.00000000000000,"Johnstone Cove, excess argon, recalculated with 1976 constants","Plafker, written communication, 1986",60.9750000000000,146.718333333333,14.000000000000000,434,1135]
["Kenai",60.0000,4.10000000,"N",151.0000,38.800000000000000,"W","7-14-73-3","Ash","Fission-track","Zircon",8.500000000000000,"Kenai Peninsula, Sterling Formation.  Age revised in Turner and others (1980).","Triplehorn et al, 1977; Turner et al, 1980a",60.0683333333333,151.646666666667,1.000000000000000,679,540]
["Kenai",60.0000,4.10000000,"N",151.0000,38.800000000000000,"W","7-14-73-3","Ash","K-Ar","Plagioclase",8.900000000000000,"Kenai Peninsula, Sterling Formation.  Age revised in Turner and others (1980).","Triplehorn et al, 1977; Turner et al, 1980a",60.0683333333333,151.646666666667,1.000000000000000,680,540]
["Kenai",60.0000,6.80000000,"N",152.0000,35.100000000000000,"W","62ALe 6e","Quartz diorite","K-Ar","Biotite",156.60000000000000,"Rounded granitic boulders within the Chisik Conglomerate member of the Naknek Formation","Detterman et al, 1965,  Magoon et al, 1976",60.1133333333333,152.585000000000,0,681,3016]
["Kenai",60.0000,6.80000000,"N",152.0000,35.100000000000000,"W","62ALe 6e","Quartz diorite","K-Ar","Hornblende",159.70000000000000,"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",60.1133333333333,152.585000000000,0,682,3016]
["Kenai",60.0000,11.15000000,"N",151.0000,27.700000000000000,"W","7-13-73-9","Ash","K-Ar","Plagioclase",7.000000000000000,"Kenai Peninsula, location revised, Sterling Formation.  Age revised in Turner and others (1980).","Triplehorn et al, 1977; Turner et al, 1980a",60.1858333333333,151.461666666667,0.7,683,540]
["Kenai",60.0000,12.30000000,"N",151.0000,26.000000000000000,"W","7-13-73-6","Ash","K-Ar","Hornblende",7.400000000000000,"Kenai Peninsula, location revised, Sterling Formation.  Age revised in Turner and others (1980).","Triplehorn et al, 1977; Turner et al, 1980a",60.2050000000000,151.433333333333,0.7,684,540]
["Kenai",60.0000,12.30000000,"N",151.0000,26.000000000000000,"W","7-13-73-6","Ash","K-Ar","Plagioclase",8.800000000000000,"Kenai Peninsula, location revised, Sterling Formation.  Age revised in Turner and others (1980).","Triplehorn et al, 1977; Turner et al, 1980a",60.2050000000000,151.433333333333,0.5,685,540]
["Kenai",60.0000,14.15000000,"N",151.0000,24.050000000000000,"W","DT75-200","Ash","Fission-track","Zircon",6.600000000000000,"Sterling Formation, Clamgulchian Stage","Turner et al, 1980a",60.2358333333333,151.400833333333,0.7,686,540]
["Kenai",60.0000,15.20000000,"N",152.0000,53.160000000000000,"W","62ALe 5","Granodiorite","K-Ar","Biotite",174.00000000000000,"Alaska-Aleutian Range batholith, recalc. with 1976 constants","Detterman et al, 1965, Reed and Lanphere, 1969, 1972, Magoon et al, 1976",60.2533333333333,152.886000000000,0,687,3404]
["Kenai",60.0000,15.20000000,"N",152.0000,53.160000000000000,"W","62ALe 5","Granodiorite","K-Ar","Hornblende",171.90000000000000,"Alaska-Aleutian Range batholith, recalc. with 1976 constants","Detterman et al, 1965, 1976, Magoon et al, 1976, Reed and Lanphere, 1969, 1972",60.2533333333333,152.886000000000,0,688,3404]
["Kenai",60.0000,12.30000000,"N",151.0000,26.100000000000000,"W","DT75-201","Tuff","K-Ar","Hornblende",5.000000000000000,"Crystal tuff, Sterling Formation.  Mean of 2 splits","Turner et al, 1980a",60.2050000000000,151.435000000000,0.8,689,540]
["Kenai",60.0000,12.30000000,"N",151.0000,26.100000000000000,"W","DT75-201","Tuff","K-Ar","Plagioclase",5.900000000000000,"Crystal tuff, Sterling Formation.  Mean of 2 splits","Turner et al, 1980a",60.2050000000000,151.435000000000,0.5,690,540]
["Kenai",60.0000,35.40000000,"N",152.0000,46.800000000000000,"W","70AR 175","Granodiorite","K-Ar","Biotite",97.800000000000000,"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",60.5900000000000,152.780000000000,2.800000000000000,691,3404]
["Kenai",60.0000,36.90000000,"N",152.0000,37.700000000000000,"W","70AR 177","Quartz diorite","K-Ar","Biotite",163.00000000000000,"Age recalculated with 1976 constants","Reed and Lanphere, 1972, 1973,  Magoon et al, 1976,  Detterman et al, 1976",60.6150000000000,152.628333333333,4.700000000000000,692,3404]
["Kenai",60.0000,36.90000000,"N",152.0000,37.700000000000000,"W","70AR 177","Quartz diorite","K-Ar","Hornblende",161.00000000000000,"Age recalculated with 1976 constants","Reed and Lanphere, 1972, 1973, Detterman et al, 1976, Magoon et al, 1976",60.6150000000000,152.628333333333,4.700000000000000,693,3404]
["Kenai",60.0000,40.60000000,"N",152.0000,27.100000000000000,"W","70AR 178","Granodiorite","K-Ar","Biotite",165.00000000000000,"Age recalculated with 1976 constants","Reed and Lanphere, 1972, 1973,  Magoon et al, 1976,  Detterman et al, 1976",60.6766666666667,152.451666666667,4.800000000000000,694,3404]
["Kenai",60.0000,40.60000000,"N",152.0000,27.100000000000000,"W","70AR 178","Granodiorite","K-Ar","Hornblende",162.00000000000000,"Age recalculated with 1976 constants","Reed and Lanphere, 1972, 1973,  Magoon et al, 1976",60.6766666666667,152.451666666667,4.800000000000000,695,3404]
["Kenai",60.0000,44.60000000,"N",152.0000,57.500000000000000,"W","70AR 146","Granodiorite","K-Ar","Biotite",68.200000000000000,"Age recalculated with 1976 constants","Reed and Lanphere, 1972, 1973,  Magoon et al, 1976",60.7433333333333,152.958333333333,1.900000000000000,696,1660]
["Kenai",60.0000,44.90000000,"N",152.0000,48.700000000000000,"W","70AR 173","Diorite","K-Ar","Biotite",67.200000000000000,"Age recalculated with 1976 constants","Reed and Lanphere, 1972, 1973,  Magoon et al, 1976",60.7483333333333,152.811666666667,1.900000000000000,697,2430]
["Kenai",60.0000,44.90000000,"N",152.0000,48.700000000000000,"W","70AR 173","Diorite","K-Ar","Hornblende",71.500000000000000,"Age recalculated with 1976 constants","Reed and Lanphere, 1972, 1973,  Magoon et al, 1976",60.7483333333333,152.811666666667,2.100000000000000,698,2430]
["Kenai",60.0000,48.20000000,"N",152.0000,21.300000000000000,"W","66AR 1464","Quartz monzonite","K-Ar","Biotite",159.00000000000000,"Age recalculated with 1976 constants","Reed and Lanphere, 1969, 1972, 1973,  Magoon et al, 1976,  Detterman et al, 1976",60.8033333333333,152.355000000000,0,699,3404]
["Kenai",60.0000,48.30000000,"N",152.0000,29.500000000000000,"W","70AR 156","Diorite","K-Ar","Hornblende",146.00000000000000,"Age recalculated with 1976 constants","Reed and Lanphere, 1972, 1973,  Magoon et al, 1976,  Detterman et al, 1976",60.8050000000000,152.491666666667,4.300000000000000,700,3404]
["Kenai",60.0000,49.90000000,"N",152.0000,34.900000000000000,"W","70AR 158","Quartz diorite","K-Ar","Biotite",70.000000000000000,"Age recalculated with 1976 constants","Reed and Lanphere, 1972, 1973,  Magoon et al, 1976,  Detterman et al, 1976",60.8316666666667,152.581666666667,2.000000000000000,701,2410]
["Kenai",60.0000,49.90000000,"N",152.0000,34.900000000000000,"W","70AR 158","Quartz diorite","K-Ar","Hornblende",74.400000000000000,"Age recalculated with 1976 constants","Reed and Lanphere, 1972, 1973,  Magoon et al, 1976,  Detterman et al, 1976",60.8316666666667,152.581666666667,2.200000000000000,702,2410]
["Kenai",60.0000,51.90000000,"N",152.0000,40.800000000000000,"W","70AR 147","Granodiorite","K-Ar","Biotite",65.400000000000000,"Age recalculated with 1976 constants","Reed and Lanphere, 1972, 1973,  Magoon et al, 1976",60.8650000000000,152.680000000000,1.800000000000000,703,1660]
["Kenai",60.0000,51.90000000,"N",152.0000,40.800000000000000,"W","70AR 147","Granodiorite","K-Ar","Hornblende",67.600000000000000,"Age recalculated with 1976 constants","Reed and Lanphere, 1972, 1973,  Magoon et al, 1976",60.8650000000000,152.680000000000,2.000000000000000,704,1660]
["Kenai",60.0000,56.60000000,"N",152.0000,51.700000000000000,"W","70AR 140","Granodiorite","K-Ar","Biotite",65.100000000000000,"Age recalculated with 1976 constants","Reed and Lanphere, 1972, 1973,  Magoon et al, 1976,  Detterman et al, 1976",60.9433333333333,152.861666666667,1.900000000000000,705,1660]
["Kenai",60.0000,56.60000000,"N",152.0000,51.700000000000000,"W","70AR 140","Granodiorite","K-Ar","Hornblende",70.500000000000000,"Age recalculated with 1976 constants","Reed and Lanphere, 1972, 1973,  Magoon et al, 1976",60.9433333333333,152.861666666667,2.000000000000000,706,1660]
["Kenai",60.0000,59.10000000,"N",152.0000,16.800000000000000,"W","70AR 179","Quartz diorite","K-Ar","Biotite",71.300000000000000,"Age recalculated with 1976 constants","Reed and Lanphere, 1972, 1973,  Magoon et al, 1976,  Detterman et al, 1976",60.9850000000000,152.280000000000,2.000000000000000,707,2410]
["Kenai",60.0000,59.10000000,"N",152.0000,16.800000000000000,"W","70AR 179","Quartz diorite","K-Ar","Hornblende",70.600000000000000,"Age recalculated with 1976 constants","Reed and Lanphere, 1972, 1973,  Magoon et al, 1976,  Detterman et al, 1976",60.9850000000000,152.280000000000,2.100000000000000,708,2410]
["Middleton Island",59.0000,54.80000000,"N",144.0000,22.900000000000000,"W","72APr 76A1","Basalt","K-Ar","Whole-rock",31.200000000000000,"Basaltic dike rock from Kayak Island.  Analytical data does not match reported age.","Winkler and Plafker, 1981; Nelson and others, 1985",59.9133333333333,144.381666666667,1.300000000000000,883,1080]
["Seldovia",59.0000,0.2,"N",151.0000,42.400000000000000,"W","7AF23-9","Schist","K-Ar","Muscovite",194.70000000000000,"Quartz-mica schist, approximate location, recalculated using Steiger and Jager, 1977 constants","Carden et al, 1977",59.0033333333333,151.706666666667,5.700000000000000,1262,3610]
["Seldovia",59.0000,22.20000000,"N",151.0000,48.600000000000000,"W","74PG79","Schist","K-Ar","Muscovite",196.10000000000000,"Quartz-mica schist, approximate location, recalculated using Steiger and Jager, 1977 constants","Carden et al, 1977",59.3700000000000,151.810000000000,5.800000000000000,1263,3610]
["Seldovia",59.0000,27.70000000,"N",151.0000,42.400000000000000,"W","SD3-3","Greenschist","K-Ar","Actinolite",195.00000000000000,"Approximate corrected location, recalculated using Steiger and Jager, 1977 constants","Forbes and Lanphere, 1973, Magoon et al, 1976, Carden et al, 1977",59.4616666666667,151.706666666667,11.000000000000000,1264,3610]
["Seldovia",59.0000,27.70000000,"N",151.0000,42.400000000000000,"W","SD3-3","Greenschist","K-Ar","Chlorite",185.10000000000000,"Approximate corrected location, recalculated using Steiger and Jager, 1977 constants","Forbes and Lanphere, 1973, Magoon et al, 1976, Carden et al, 1977",59.4616666666667,151.706666666667,8.300000000000000,1265,3610]
["Seldovia",59.0000,27.70000000,"N",151.0000,42.400000000000000,"W","SD3-3","Greenschist","K-Ar","Mica",192.30000000000000,"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",59.4616666666667,151.706666666667,10.000000000000000,1266,3610]
["Seldovia",59.0000,27.70000000,"N",151.0000,42.400000000000000,"W","74AF4B.1","Schist","K-Ar","Amphibole",166.80000000000000,"Blueschist, crossite date, approximate location, recalculated using Steiger and Jager, 1977 constants","Carden et al, 1977",59.4616666666667,151.706666666667,4.900000000000000,1267,3610]
["Seldovia",59.0000,27.70000000,"N",151.0000,42.400000000000000,"W","74AF23-10","Schist","K-Ar","Amphibole",188.60000000000000,"Amphibole-mica schist, approximate location, recalculated using Steiger and Jager, 1977 constants","Carden et al, 1977",59.4616666666667,151.706666666667,5.500000000000000,1268,3610]
["Seldovia",59.0000,27.70000000,"N",151.0000,42.400000000000000,"W","74AF23-10","Schist","K-Ar","Muscovite",196.60000000000000,"Amphibole-mica schist, approximate location, recalculated using Steiger and Jager, 1977 constants","Carden et al, 1977",59.4616666666667,151.706666666667,5.800000000000000,1269,3610]
["Seldovia",59.0000,28.00000000,"N",151.0000,44.000000000000000,"W","SD9-3","Schist","K-Ar","Crossite",157.80000000000000,"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",59.4666666666667,151.733333333333,4.800000000000000,1270,3610]
["Seldovia",59.0000,28.00000000,"N",151.0000,44.000000000000000,"W","SD9-3","Schist","K-Ar","PH",192.90000000000000,"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",59.4666666666667,151.733333333333,5.700000000000000,1271,3610]
["Seldovia",59.0000,46.10000000,"N",151.0000,9.450000000000000,"W","7-21-73-1","Ash","Fission-track","Zircon",8.800000000000000,"Kenai Peninsula, Beluga? Formation.  Age revised in Turner and others (1980).","Triplehorn et al, 1977; Turner et al, 1980a",59.7683333333333,151.157500000000,1.000000000000000,1272,545]
["Seldovia",59.0000,46.10000000,"N",151.0000,9.450000000000000,"W","7-21-73-1","Ash","K-Ar","Plagioclase",11.300000000000000,"Kenai Peninsula, Beluga? Formation.  Age revised in Turner and others (1980).","Triplehorn et al, 1977; Turner et al, 1980a",59.7683333333333,151.157500000000,0.7,1273,545]
["Seldovia",59.0000,42.35000000,"N",151.0000,16.800000000000000,"W","7-21-73-5","Ash","Fission-track","Zircon",8.100000000000000,"Kenai Peninsula, Beluga? Formation.  Age revised in Turner and others (1980).","Triplehorn et al, 1977; Turner et al, 1980a",59.7058333333333,151.280000000000,1.000000000000000,1274,545]
["Seldovia",59.0000,42.20000000,"N",151.0000,16.700000000000000,"W","DT75-203","Tuff","Fission-track","Apatite",12.900000000000000,"Crystal vitric tuff mostly altered to clay, Beluga Fm.","Turner et al, 1980a",59.7033333333333,151.278333333333,5.100000000000000,1275,545]
["Seldovia",59.0000,42.20000000,"N",151.0000,16.700000000000000,"W","DT75-203","Tuff","K-Ar","Plagioclase",8.800000000000000,"Crystal vitric tuff mostly altered to clay, Beluga Formation.  Mean of 2 analyses.","Turner et al, 1980a",59.7033333333333,151.278333333333,0.9,1276,545]
["Seldovia",59.0000,42.60000000,"N",151.0000,14.300000000000000,"W","DT75-202","Tuff","K-Ar","Plagioclase",7.200000000000000,"Crystal vitric tuff, Beluga Formation","Turner et al, 1980a",59.7100000000000,151.238333333333,1.300000000000000,1277,545]
["Seldovia",59.0000,42.70000000,"N",151.0000,16.100000000000000,"W","DT75-204","Ash","Fission-track","Zircon",7.600000000000000,"Beluga Formation","Turner et al, 1980a",59.7116666666667,151.268333333333,0.7,1278,545]
["Seldovia",59.0000,42.70000000,"N",151.0000,16.100000000000000,"W","DT75-204","Ash","K-Ar","Plagioclase",8.100000000000000,"Beluga Formation.  Mean of 2 analyses","Turner et al, 1980a",59.7116666666667,151.268333333333,0.7,1279,545]
["Seldovia",59.0000,45.70000000,"N",151.0000,10.150000000000000,"W","7-22-73-4","Ash","Fission-track","Zircon",8.100000000000000,"Kenai Peninsula, Beluga? Formation.  Age revised in Turner and others (1980).","Triplehorn et al, 1977; Turner et al, 1980a",59.7616666666667,151.169166666667,1.000000000000000,1280,545]
["Seldovia",59.0000,45.70000000,"N",151.0000,10.150000000000000,"W","7-22-73-4","Ash","K-Ar","Plagioclase",8.100000000000000,"Kenai Peninsula, Beluga? Formation.  Age revised in Turner and others (1980).","Triplehorn et al, 1977; Turner et al, 1980a",59.7616666666667,151.169166666667,0.8,1281,545]
["Seldovia",59.0000,46.20000000,"N",151.0000,8.000000000000000,"W","DT75-210","Ash","K-Ar","Plagioclase",7.200000000000000,"Sterling Formation, Clamgulchian Stage","Turner et al, 1980a",59.7700000000000,151.133333333333,0.6,1282,540]
["Seldovia",59.0000,46.20000000,"N",151.0000,8.000000000000000,"W","DT75-211","Ash","Fission-track","Zircon",5.400000000000000,"20-40m stratigraphically above DT75-210.  Sterling Formation.","Turner et al, 1980a",59.7700000000000,151.133333333333,0.6,1283,540]
["Seldovia",59.0000,46.20000000,"N",151.0000,8.000000000000000,"W","DT75-211","Ash","K-Ar","Plagioclase",11.700000000000000,"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",59.7700000000000,151.133333333333,0.9,1284,540]
["Seldovia",59.0000,46.20000000,"N",151.0000,8.000000000000000,"W","DT75-212","Ash","K-Ar","Plagioclase",32.200000000000000,"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",59.7700000000000,151.133333333333,1.900000000000000,1285,540]
["Seldovia",59.0000,47.80000000,"N",151.0000,6.500000000000000,"W","DT75-209b","Tuff","K-Ar","Plagioclase",9.100000000000000,"Also dated at 8.2 Ma.  Sterling? Formation, age may be too old due to detrital contamination.","Turner et al, 1980a",59.7966666666667,151.108333333333,0.7,1286,540]
["Seldovia",59.0000,47.80000000,"N",151.0000,6.700000000000000,"W","DT75-206","Ash","Fission-track","Zircon",5.600000000000000,"Composite of four thin beds, Sterling Formation","Turner et al, 1980a",59.7966666666667,151.111666666667,0.9,1287,540]
["Seldovia",59.0000,47.80000000,"N",151.0000,6.700000000000000,"W","DT75-206","Ash","K-Ar","Plagioclase",4.600000000000000,"Also dated at 8.4 m.y., composite of four thin beds.","Turner et al, 1980a",59.7966666666667,151.111666666667,0.7,1288,540]
["Seldovia",59.0000,47.80000000,"N",151.0000,6.700000000000000,"W","DT75-207","Tuff","Fission-track","Zircon",4.900000000000000,"24m stratigraphically higher than DT75-206.  Sterling Formation","Turner et al, 1980a",59.7966666666667,151.111666666667,0.8,1289,540]
["Seldovia",59.0000,47.80000000,"N",151.0000,6.700000000000000,"W","DT75-207","Tuff","K-Ar","Plagioclase",7.600000000000000,"24m stratigraphically higher than DT75-206.  Believed to be too old due to detrital contamination.","Turner et al, 1980a",59.7966666666667,151.111666666667,0.6,1290,540]
["Seldovia",59.0000,47.80000000,"N",151.0000,6.700000000000000,"W","DT75-208","Tuff","K-Ar","Hornblende",4.700000000000000,"35m stratigraphically higher than DT75-206.  Sterling Formation","Turner et al, 1980a",59.7966666666667,151.111666666667,0.6,1291,540]
["Seldovia",59.0000,47.80000000,"N",151.0000,6.700000000000000,"W","DT75-208","Tuff","K-Ar","Plagioclase",4.200000000000000,"35m stratigraphically higher than DT75-206.  Sterling Formation.","Turner et al, 1980a",59.7966666666667,151.111666666667,1.400000000000000,1292,540]
["Seldovia",59.0000,49.40000000,"N",151.0000,2.500000000000000,"W","6-25-77-1","Ash","K-Ar","Plagioclase",6.900000000000000,"Sterling Formation, Clamgulchian Stage","Turner et al, 1980a",59.8233333333333,151.041666666667,0.5,1293,540]
["Kenai",60.7167,0,null,152.6667,0,null,"78AR 290DK","Andesite","K-Ar","Whole-rock",0.763,"Dark band in banded andesite","Reed, Lanphere and Miller, 1992",60.7167000000000,152.666700000000,0.017,3493,402]
["Kenai",60.7167,0,null,152.6667,0,null,"78AR 290LT","Andesite","K-Ar","Whole-rock",0.627,"Light band in banded andesite","Reed, Lanphere and Miller, 1992",60.7167000000000,152.666700000000,0.024,3494,402]
["Kenai",60.7700,0,null,152.7000,0,null,"90AR 99","Andesite","K-Ar","Whole-rock",0.887,"Estimated latitude and longitude","Reed, Lanphere and Miller, 1992",60.7700000000000,152.700000000000,0.015,3495,402]
["Seldovia",59.0000,58.64500000,"N",150.0000,9.667000000000000,"W","92AKu 71b","Granodiorite","40/39 Plateau","Biotite",53.200000000000000,"Tustemena pluton - medium-grained, nonfoliated biotite granodiorite.   Sample run by Lux.","Bradley and others, 1999, 2000",59.9774166666667,150.161116666667,1.100000000000000,3652,1320]
["Seldovia",59.0000,28.40000000,"N",150.0000,20.200000000000000,"W","88ACy 9","Granodiorite","40/39 Isochron","Biotite",54.200000000000000,"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",59.4733333333333,150.336666666667,0.08,3653,1320]
["Seldovia",59.0000,23.60000000,"N",150.0000,39.900000000000000,"W","88ADw 230","Intermediate dike","40/39 Isochron","Hornblende",57.000000000000000,"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",59.3933333333333,150.665000000000,0.22,3654,1011]
["Seldovia",59.0000,23.63000000,"N",151.0000,13.117000000000000,"W","93ASB 66","Basaltic andesite","40/39 Plateau","Hornblende",115.00000000000000,"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",59.3938333333333,151.218616666667,1.700000000000000,3655,2401]
["Blying Sound",59.0000,47.50000000,"N",149.0000,59.500000000000000,"W","91AKu 3 #1","Granodiorite","40/39 Plateau","Biotite",51.100000000000000,"Aialik pluton, Harris Bay.  One of three biotite analyses.","Bradley and others, 2000",59.7916666666667,149.991666666667,0.5,3664,1320]
["Seldovia",59.0000,28.40000000,"N",150.0000,20.200000000000000,"W","88ACy 9","Granodiorite","U-Pb","Monazite",56.000000000000000,"Nuka pluton - medium- to coarse-grained granodiorite containing biotite, muscovite, and rare hornblende.  Sample run by Parrish.","Bradley and others, 2000",59.4733333333333,150.336666666667,0.5,3674,1320]
["Seldovia",59.0000,52.96700000,"N",150.0000,27.830000000000000,"W","91ADw 55g","Granodiorite","40/39 Plateau","Biotite",54.200000000000000,"Chernof Stock - nonfoliated, medium-grained biotite granodiroite.  Sample run by Lux.","Bradley and others, 2000",59.8827833333333,150.463833333333,1.100000000000000,3675,1320]
["Blying Sound",59.0000,47.50000000,"N",149.0000,59.500000000000000,"W","91AKu 3","Granodiorite","40/39 Average","Biotite",52.200000000000000,"Aiallik pluton - medium- to coarse-grained granodiorite.  Sample run by Layer.  Quadrangle incorrect in source","Bradley and others, 2000",59.7916666666667,149.991666666667,0.9,3677,1300]
["Blying Sound",59.0000,53.40000000,"N",149.0000,22.400000000000000,"W","95TD 2b #3","Granodiorite","40/39 Plateau","Biotite",53.400000000000000,"Hive Island pluton - granodiorite.  One of three biotite analyses run by Layer.","Bradley and others, 2000",59.8900000000000,149.373333333333,0.5,3678,1320]
["Seldovia",59.0000,32.56700000,"N",150.0000,10.833000000000000,"W","92PH 454B","Granite","40/39 Plateau","Biotite",53.700000000000000,"Thunder Bay granitic sill, slightly disturbed spectrum","Haeussler and others 1995;  Bradley and others, 2000",59.5427833333333,150.180550000000,0.1,3679,1320]
["Seldovia",59.0000,46.20000000,"N",151.0000,8.000000000000000,"W","DT75-211","Ash","K-Ar","Plagioclase",14.100000000000000,"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",59.7700000000000,151.133333333333,1.100000000000000,3684,540]
["Seldovia",59.0000,47.80000000,"N",151.0000,6.500000000000000,"W","DT75-209b","Tuff","K-Ar","Plagioclase",8.200000000000000,"Also dated at 9.1 Ma.  Sterling Formation; age may be too old due to detrital contamination.","Turner et al, 1980a",59.7966666666667,151.108333333333,0.8,3685,540]
["Seldovia",59.0000,46.20000000,"N",151.0000,8.000000000000000,"W","DT75-212","Ash","K-Ar","Plagioclase",30.100000000000000,"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",59.7700000000000,151.133333333333,1.800000000000000,3686,540]
["Seldovia",59.0000,47.80000000,"N",151.0000,6.700000000000000,"W","DT75-206","Ash","K-Ar","Plagioclase",8.400000000000000,"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",59.7966666666667,151.111666666667,0.7,3687,540]
["Seldovia",59.0000,47.80000000,"N",151.0000,6.700000000000000,"W","DT75-207","Tuff","K-Ar","Plagioclase",7.500000000000000,"24m stratigraphically higher than DT75-206.  Believed to be too old due to detrital contamination.","Turner et al, 1980a",59.7966666666667,151.111666666667,0.6,3688,540]
["Blying Sound",59.9286,0,"N",149.3242,0,"W","81BS 001A","Metatuff","K-Ar","Whole Rock",54.400000000000000,"Map unit Kvt on Fox Island.","Miller, 1984 (M.L. Silberman, USGS, unpub. data, 1982)",59.9286000000000,149.324200000000,2.700000000000000,3691,2705]
["Blying Sound",59.0000,57.18330000,"N",149.0000,16.083300000000000,"W","81BS 011A","Basalt","K-Ar","Whole Rock",49.600000000000000,null,"Miller, 1984 (M.L. Silberman, USGS, unpub. data, 1982)",59.9530550000000,149.268055000000,2.500000000000000,3692,1137]
["Blying Sound",59.0000,57.18330000,"N",149.0000,16.083300000000000,"W","81BS 011B","Basalt","K-Ar","Whole Rock",45.700000000000000,null,"Miller, 1984 (M.L. Silberman, USGS, unpub. data, 1982)",59.9530550000000,149.268055000000,2.300000000000000,3693,1137]
["Blying Sound",59.0000,53.00000000,"N",149.0000,16.683300000000000,"W","81BS 013K","Basalt","K-Ar","Whole Rock",47.300000000000000,null,"Miller, 1984 (M.L. Silberman, USGS, unpub. data, 1982)",59.8833333333333,149.278055000000,2.400000000000000,3694,1137]
["Seldovia",59.4479,0,"N",151.7145,0,"W","92ATi 316D","Schist","40/39 Plateau","White Mica",190.98000000000000,"Seldovia metamorphic complex, Plateau age","Bradley and Karl, 2000, A. Till (per. commun., 2007)",59.4479000000000,151.714500000000,0.3,3697,3610]
["Seldovia",59.4547,0,"N",151.7153,0,"W","92ATi 309B","Schist","40/39 Plateau","Barroisite",191.92000000000000,"Seldovia metamorphic complex, Plateau age, qtz-wht mica-chorite schist","Bradley and Karl, 2000, A. Till (per. commun., 2007)",59.4547000000000,151.715300000000,0.6,3698,3610]
["Seldovia",59.4547,0,"N",151.7153,0,"W","92ATi 309B","Schist","40/39 Plateau","Muscovite",191.70000000000000,"Seldovia metamorphic complex, Plateau age, qtz-wht mica-chorite schist","Bradley and Karl, 2000, A. Till (per. commun., 2007)",59.4547000000000,151.715300000000,0.3,3699,3610]
["Cordova",60.5890,0,"N",144.4096,0,"W","80ANS 148A","Granitic rock","K/Ar","Biotite",52.700000000000000,"Unit Tgg south side of Miles Glacier","Nelson and others, 1985 (Vivit, Gray, Silberman)",60.5890000000000,144.409600000000,1.600000000000000,3715,1300]
["Cordova",60.5890,0,"N",144.4096,0,"W","80ANS 148A","Granitic rock","K/Ar","Hornblende",51.300000000000000,"Unit Tgg south side of Miles Glacier","Nelson and others, 1985 (Vivit, Gray, Silberman)",60.5890000000000,144.409600000000,2.900000000000000,3716,1300]
["Middleton Island",59.7969,0,"N",144.5864,0,"W","80AMH 159A","Dacite","K/Ar","Whole rock",6.200000000000000,"Dacite of Cape St. Elias","Nelson and others, 1985 (Teledyne Isotopes)",59.7969000000000,144.586400000000,0.3,3717,1053]
["Cordova",60.0000,40.57000000,"N",145.0000,29.870000000000000,"W","85APr 177","Gabbro","K-Ar","Hornblended",48.500000000000000,"Altered clinopyroxene gabbro in written report, reported as hornblende gabbro on map","George Plafker, written commun., 1986; Winkler and Plafker, 1993",60.6761666666667,145.497833333333,1.460000000000000,3724,1380]
["Cordova",60.0000,0.00000000,"N",144.0000,11.750000000000000,"W","72APr 22A1","Diorite","K-Ar","Hornblende",200.50000000000000,"Recalculated with constants of Steiger and Jager (1977)","Plafker, written communication, 1986",60.0000000000000,144.195833333333,29.000000000000000,3725,1300]
["Seldovia",59.0000,19.17000000,"N",151.0000,17.500000000000000,"W","n.a.","Felsic dike","40/39","White mica",57.300000000000000,"Port Dick prospect, hydrothermal alteration preferred date from single step (1000 degrees C) and 67.8 percent of gas","Haeussler and others, 1995",59.3195000000000,151.291666666667,0.1,3727,null]
["Seldovia",59.0000,32.35000000,"N",150.0000,28.680000000000000,"W",null,"Not reported","40/39 Plateau","Sericite",55.600000000000000,"Valdez Group, Beauty Bay Mine, altered rock, clear sericite","Haeussler and others, 1995",59.5391666666667,150.478000000000,0.1,3728,null]
["Seldovia",59.0000,32.35000000,"N",150.0000,28.680000000000000,"W",null,"Not reported","40/39","Sericite",55.900000000000000,"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",59.5391666666667,150.478000000000,0.1,3729,null]
["Seldovia",59.0000,32.56700000,"N",150.0000,10.800000000000000,"W",null,"Vein","40/39 Plateau","White mica",52.900000000000000,"Thunder Bay gold occurrence, polymetalllic gold-sulfide vein","Haeussler and others, 1995",59.5427833333333,150.180000000000,0.1,3730,null]
["Blying Sound",59.0000,47.50000000,"N",149.0000,59.500000000000000,"W","91AKu 3 #2","Granodiorite","40/39 Plateau","Biotite",53.500000000000000,"Aialik pluton, Harris Bay.  One of three biotite analyses.","Bradley and others, 2000",59.7916666666667,149.991666666667,0.5,3741,1320]
["Blying Sound",59.0000,47.50000000,"N",149.0000,59.500000000000000,"W","91AKu 3 #3","Granodiorite","40/39 Plateau","Biotite",49.600000000000000,"Aialik pluton, Harris Bay.  One of three biotite analyses.","Bradley and others, 2000",59.7916666666667,149.991666666667,1.700000000000000,3742,1320]
["Blying Sound",59.0000,53.40000000,"N",149.0000,22.400000000000000,"W","95TD 2b #2","Granodiorite","40/39 Plateau","Biotite",53.500000000000000,"Hive Island pluton - granodiorite.  One of three biotite analyses run by Layer.","Bradley and others, 2000",59.8900000000000,149.373333333333,1.000000000000000,3743,1320]
["Blying Sound",59.0000,53.40000000,"N",149.0000,22.400000000000000,"W","95TD 2b #1","Granodiorite","40/39 Plateau","Biotite",53.300000000000000,"Hive Island pluton - granodiorite.  One of three biotite analyses run by Layer.","Bradley and others, 2000",59.8900000000000,149.373333333333,0.6,3744,1320]
["Blying Sound",59.0000,53.40000000,"N",149.0000,22.400000000000000,"W","95TD 2b","Granodiorite","40/39 Average","Biotite",53.400000000000000,"Hive Island pluton - granodiorite.  Weighted mean of three biotite analyses run by Layer.","Bradley and others, 2000",59.8900000000000,149.373333333333,0.4,3745,1320]
["Seldovia",59.0000,42.50000000,"N",150.0000,8.100000000000000,"W","Paguna","Granodiorite","40/39 Plateau","n.a.",53.400000000000000,"Paguna stock, approximate location.","Bradley and others, 1999",59.7083333333333,150.135000000000,1.500000000000000,3746,1320]
["Seldovia",59.0000,27.70000000,"N",151.0000,42.400000000000000,"W","74AF23-10","Schist","K-Ar","Amphibole",188.30000000000000,"Replicate analysis, Amphibole-mica schist, approximate location, 1976 constants","Carden et al, 1977",59.4616666666667,151.706666666667,5.500000000000000,3747,3610]
["Seldovia",59.0000,20.58000000,"N",151.0000,49.270000000000000,"W","90ADW 809","Andesite","40/39 Plateau","Amphibole",58.640000000000000,"Andesite dike, might have intruded Port Graham formation near Port Graham","Lytwyn and others, 2000",59.3430000000000,151.821166666667,0.52,3748,1320]