QUADCLATDEGNLATMINNLATDIRCLONGDEGNLONGMINNLONGDIRCSAMPLEC ROCK_TYPECMETHODCMINERALC AGENCOMMENTCREFERENCEChLATITUDEN LONGITUDEN ERRORNREC_NONNSACLASSN St. Matthew 60 34.200000000000000N17259.800000000000000W1-2 Andesite K-Ar Whole-rock 69.200000000000000Pyroxene andesite flow, minimum age Wittbrodt et al, 1989 60.5700000000000172.996666666667 2.10000000000000013692260 St. Matthew 60 20.100000000000000N17226.000000000000000W12-105 Basalt K-Ar Whole-rock 78.100000000000000Minimum age Wittbrodt et al, 1989 60.3350000000000172.433333333333 2.30000000000000013642260 St. Matthew 60 20.100000000000000N17226.000000000000000W12-106 Basalt K-Ar Whole-rock 52.200000000000000Minimum age Wittbrodt et al, 1989 60.3350000000000172.433333333333 1.60000000000000013652260 St. Matthew 60 28.900000000000000N17257.200000000000000W4-16 Basalt K-Ar Whole-rock 73.000000000000000Minimum age Wittbrodt et al, 1989 60.4816666666667172.953333333333 2.20000000000000013672260 St. Matthew 60 35.000000000000000N17257.800000000000000W5-123 Andesite K-Ar Whole-rock 76.000000000000000Minimum age, same flow as 5-125 Wittbrodt et al, 1989 60.5833333333333172.963333333333 2.30000000000000013742260 St. Matthew 60 35.000000000000000N17257.800000000000000W5-125 Andesite K-Ar Whole-rock 78.700000000000000Minimum age, same flow as 5-123 Wittbrodt et al, 1989 60.5833333333333172.963333333333 2.40000000000000013752260 St. Matthew 60 35.000000000000000N17257.800000000000000W5-27 Andesite K-Ar Whole-rock 76.500000000000000Minimum age, same flow as 5-29, 5-31, 5-33 Wittbrodt et al, 1989 60.5833333333333172.963333333333 2.30000000000000013702260 St. Matthew 60 35.000000000000000N17257.800000000000000W5-29 Andesite K-Ar Whole-rock 68.000000000000000Minimum age, same flow as 5-27, 5-31, 5-33 Wittbrodt et al, 1989 60.5833333333333172.963333333333 2.30000000000000013712260 St. Matthew 60 35.000000000000000N17257.800000000000000W5-31 Andesite K-Ar Whole-rock 79.200000000000000Minimum age, same flow as 5-27, 5-29, 5-33 Wittbrodt et al, 1989 60.5833333333333172.963333333333 2.40000000000000013722260 St. Matthew 60 35.000000000000000N17257.800000000000000W5-33 Andesite K-Ar Whole-rock 73.800000000000000Minimum age, same flow as 5-27, 5-29, 5-31 Wittbrodt et al, 1989 60.5833333333333172.963333333333 2.20000000000000013732260 Goodnews Bay 59 33.000000000000000N16120.000000000000000W50AHr 49 Amphibolite K-Ar Hornblende 1088.0000000000000Approximate location, Corrected with new constants Turner and others, in prep., 2006 59.5500000000000161.33333333333332.00000000000000035119420 Goodnews Bay 59 43.500000000000000N161 6.500000000000000W50AHr 747aQuartz diorite K-Ar Biotite 439.20000000000000Replicate analyses, 444.7 average age Turner and others, in prep., 2006 59.7250000000000161.10833333333313.00000000000000035639420 Goodnews Bay 59 43.500000000000000N161 6.500000000000000W50AHr 747aQuartz diorite K-Ar Hornblende 540.10000000000000Replicate analyses, 542.1 average age Turner and others, in prep., 2006 59.7250000000000161.10833333333315.90000000000000035649420 Goodnews Bay 59 43.500000000000000N161 6.500000000000000W50AHr 747aQuartz diorite K-Ar Biotite 450.20000000000000Replicate analyses, 444.7 average age Turner and others, in prep., 2006 59.7250000000000161.10833333333313.00000000000000035659420 Goodnews Bay 59 43.500000000000000N161 6.500000000000000W50AHr 747aQuartz diorite K-Ar Hornblende 544.20000000000000Replicate analyses, 542.1 average age Turner and others, in prep., 2006 59.7250000000000161.10833333333316.10000000000000035669420 St. Matthew 60 24.000000000000000N17241.900000000000000W71AMm45 Granodiorite K-Ar Hornblende 62.2000000000000001976 constants Patton et al, 1975, Silberman and Hopkins, 1976, Wittbrodt et al, 1989 60.4000000000000172.698333333333 2.00000000000000013661660 St. Matthew 60 39.200000000000000N173 3.600000000000000W71AMm50 Tuff K-Ar Biotite 76.000000000000000 Patton et al, 1975, 1976, Silberman and Hopkins, 1976, Wittbrodt et al, 1989 60.6533333333333173.060000000000 2.00000000000000013772265 St. Matthew 60 39.200000000000000N173 3.600000000000000W71AMm50 Tuff K-Ar Hornblende 76.300000000000000 Patton et al, 1975, 1976, Silberman and Hopkins, 1976, Wittbrodt et al, 1989 60.6533333333333173.060000000000 2.00000000000000013782265 St. Matthew 60 33.700000000000000N17256.500000000000000W71APa10 Basalt K-Ar Whole-rock 66.5000000000000001976 constants Patton et al, 1975,1976, Silberman and Hopkins, 1976, Wittbrodt et al, 1989 60.5616666666667172.941666666667 2.00000000000000013682260 St. Matthew 60 35.000000000000000N17258.500000000000000W71APa15 Basalt K-Ar Whole-rock 78.7000000000000001976 constants Patton et al, 1975, 1976, Silberman and Hopkins, 1976, Wittbrodt 60.5833333333333172.975000000000 2.00000000000000013762260 Goodnews Bay 59 55.100000000000000N15954.900000000000000W73AHr1 Granodiorite K-Ar Biotite 71.100000000000000Mt. Oratio Wilson and Smith, 1976, Wilson, 1977, Hoare and Coonrad, 1978, Frost et al, 1988 59.9183333333333159.915000000000 2.000000000000000482 1658 Nushagak Bay 58 51.100000000000000N15958.670000000000000W74ACd14d Diabase K-Ar Biotite 64.600000000000000Biotite diabase Hoare and Coonrad, 1978, Box, 1985a 58.8516666666667159.977833333333 2.00000000000000010991670 Hagemeister Is. 58 57.800000000000000N161 3.000000000000000W74AHr111 Gabbro K-Ar Hornblende 186.90000000000000Downdraft Mountain Wilson, 1977, Hoare and Coonrad, 1978, Box, 1985a 58.9633333333333161.050000000000 6.000000000000000504 3406 Hagemeister Is. 58 59.200000000000000N16058.200000000000000W74AHr112 Gabbro K-Ar Hornblende 159.30000000000000Matogak pluton, minimum age Wilson, 1977, Hoare and Coonrad, 1978, Box, 1985a 58.9866666666667160.970000000000 3.500000000000000505 3406 Goodnews Bay 59 39.600000000000000N15940.300000000000000W74AHr118 Quartz monzonite K-Ar Biotite 63.700000000000000 Wilson and Smith, 1976, Wilson, 1977, Hoare and Coonrad, 1978 59.6600000000000159.671666666667 2.000000000000000475 1658 Goodnews Bay 59 39.600000000000000N15940.300000000000000W74AHr118 Quartz monzonite K-Ar Hornblende 69.500000000000000 Wilson and Smith, 1976, Wilson, 1977, Hoare and Coonrad, 1978 59.6600000000000159.671666666667 3.000000000000000476 1658 Hagemeister Is. 58 57.000000000000000N160 .600000000000000W74AHr26 Rhyodacite K-Ar Biotite 13.000000000000000Nunavachak Hills, sill Wilson, 1977, Hoare and Coonrad, 1978, Box, 1985a 58.9500000000000160.010000000000 .500000000000000503 1053 Nushagak Bay 58 53.800000000000000N15928.800000000000000W74AHr51 Monzonite K-Ar Biotite 71.900000000000000Pyroxene monzonite, Kulukak pluton Wilson, 1977, Hoare and Coonrad, 1978, Box, 1985a 58.8966666666667159.480000000000 2.00000000000000011001657 Goodnews Bay 59 17.800000000000000N15958.200000000000000W74AHr77 Basalt K-Ar Whole-rock .758000000000000Togiak River Valley basalt, corrected age, age rounded from 0.758 Hoare and Coonrad, 1978, 1980, Box, 1985a 59.2966666666667159.970000000000 .200000000000000468 330 Goodnews Bay 59 37.600000000000000N159 0.000000000000000W74B57 Granite K-Ar Biotite 69.600000000000000 Wilson and Smith, 1976, Wilson, 1977, Hoare and Coonrad, 1978 59.6266666666667159.000000000000 2.100000000000000473 1656 Goodnews Bay 59 37.600000000000000N159 0.000000000000000W74B57 Granite K-Ar Hornblende 63.400000000000000 Wilson and Smith, 1976, Wilson, 1977, Hoare and Coonrad, 1978 59.6266666666667159.000000000000 3.000000000000000474 1656 Goodnews Bay 59 34.600000000000000N16114.100000000000000W75AFS-12k Amphibolite K-Ar Hornblende 163.20000000000000Garnet amphibolite. Turner and others, in prep., 2006 59.5766666666667161.235000000000 4.80000000000000035709420 Goodnews Bay 59 34.600000000000000N16114.100000000000000W75AFS-12k Amphibolite K-Ar Biotite 136.50000000000000Garnet amphibolite. Turner and others, in prep., 2006 59.5766666666667161.235000000000 3.90000000000000035719420 Goodnews Bay 59 37.000000000000000N16112.300000000000000W75AFS-18akGneiss K-Ar Biotite 143.70000000000000Biotite-muscovite granodiorite gneiss Turner and others, in prep., 2006 59.6166666666667161.205000000000 4.20000000000000035729420 Goodnews Bay 59 37.000000000000000N16112.300000000000000W75AFS-18akGneiss K-Ar Muscovite 135.60000000000000Biotite-muscovite granodiorite gneiss Turner and others, in prep., 2006 59.6166666666667161.205000000000 3.90000000000000035739420 Goodnews Bay 59 37.200000000000000N16112.000000000000000W75AFS-18ckAmphibolite K-Ar Hornblende 133.70000000000000Biotite-bearing amphibolite Turner and others, in prep., 2006 59.6200000000000161.200000000000 3.90000000000000035749420 Goodnews Bay 59 36.700000000000000N16113.700000000000000W75AFS-1k Gneiss K-Ar Biotite 169.70000000000000Biotite-muscovite gneiss Turner and others, in prep., 2006 59.6116666666667161.228333333333 4.90000000000000035679420 Goodnews Bay 59 38.700000000000000N16112.300000000000000W75AFS-22akGneiss K-Ar Biotite 170.30000000000000Biotite-hornblende diorite gneiss. Replicate analyses, 183.9+/-19.3 average age, biotite K2O very low Turner and others, in prep., 2006 59.6450000000000161.205000000000 4.90000000000000035759420 Goodnews Bay 59 387.00000000000000N16112.300000000000000W75AFS-22akGneiss K-Ar Biotite 197.30000000000000Biotite-hornblende diorite gneiss. Replicate analyses, 183.9+/-19.3 average age, biotite K2O very low Turner and others, in prep., 2006 65.4500000000000161.205000000000 5.80000000000000035769420 Goodnews Bay 59 387.00000000000000N16112.300000000000000W75AFS-22akGneiss K-Ar Hornblende 245.30000000000000Biotite-hornblende diorite gneiss Turner and others, in prep., 2006 65.4500000000000161.205000000000 7.20000000000000035779420 Goodnews Bay 59 39.000000000000000N16112.400000000000000W75AFS-23akGneiss K-Ar Biotite 199.70000000000000Biotite-hornblende diorite gneiss Turner and others, in prep., 2006 59.6500000000000161.206666666667 5.80000000000000035789420 Goodnews Bay 59 34.200000000000000N16126.500000000000000W75AFS-28akGneiss K-Ar Hornblende 186.60000000000000Biotite-hornblende biotite gneiss. Turner and others, in prep., 2006 59.5700000000000161.441666666667 5.50000000000000035799420 Goodnews Bay 59 34.900000000000000N16123.800000000000000W75AFS-35akGranodiorite K-Ar Biotite 138.80000000000000Biotite-hornblende granodiorite, part of Kanektok metamorphic complex, is this metamorphic? Turner and others, in prep., 2006 59.5816666666667161.396666666667 4.10000000000000035809420 Goodnews Bay 59 34.900000000000000N16123.800000000000000W75AFS-35akGranodiorite K-Ar Hornblende 235.50000000000000Biotite-hornblende granodiorite, part of Kanektok metamorphic complex, is this metamorphic? Turner and others, in prep., 2006 59.5816666666667161.396666666667 6.90000000000000035819420 Goodnews Bay 59 36.400000000000000N16113.500000000000000W75AFS-3k Epidote amphibolite K-Ar Hornblende 170.50000000000000 Turner and others, in prep., 2006 59.6066666666667161.225000000000 4.90000000000000035689420 Goodnews Bay 59 36.400000000000000N16113.500000000000000W75AFS-3k Epidote amphibolite K-Ar Biotite 146.30000000000000Impure biotite Turner and others, in prep., 2006 59.6066666666667161.225000000000 4.30000000000000035699420 Hagemeister Is. 58 48.000000000000000N16045.000000000000000W8106301 Basalt K-Ar Whole-rock 64.500000000000000 Globerman, 1985 58.8000000000000160.750000000000 3.200000000000000496 2260 Hagemeister Island58 46.800000000000000N16045.400000000000000W8107126 Andesite K-Ar Whole-rock 68.300000000000000Basaltic andesite Globerman, 1985, Box, 1985a 58.7800000000000160.756666666667 .400000000000000494 2260 Hagemeister Island58 47.100000000000000N16044.900000000000000W8107131 Andesite K-Ar Whole-rock 68.700000000000000Basaltic andesite Globerman, 1985, Box, 1985a 58.7850000000000160.748333333333 3.700000000000000495 2260 Hagemeister Island58 46.600000000000000N16047.200000000000000W81SB-35b Andesite K-Ar Whole-rock 64.500000000000000Basaltic andesite Box, 1985a 58.7766666666667160.786666666667 3.200000000000000493 2260 Goodnews Bay 59 50.600000000000000N161 1.500000000000000W81SB107A Phyllite K-Ar Mica 150.00000000000000 Box, 1985a,b 59.8433333333333161.025000000000 8.000000000000000480 3990 Hagemeister Is. 58 51.200000000000000N16059.400000000000000W81SB116b Hornfels K-Ar Amphibole 187.00000000000000Contact diabase Box, 1985a 58.8533333333333160.99000000000010.000000000000000499 3406 Hagemeister Is. 58 45.100000000000000N16118.400000000000000W81SB133a Schist K-Ar Mica 155.00000000000000Mica schist Box, 1985a, b 58.7516666666667161.306666666667 8.000000000000000492 3990 Hagemeister Is. 58 38.200000000000000N16153.000000000000000W82BB147 Schist K-Ar Hornblende 231.20000000000000Glaucophane hornblende epidote schist Box, 1985a,b 58.6366666666667161.883333333333 6.900000000000000491 3991 Bethel 60 46.220000000000000N159 6.430000000000000W82JD 435A Basalt K-Ar Whole-rock 71.400000000000000Minimum age Reifenstuhl, pers. comm., 1984, Moll, writ. comm., 1986; Robinson and Decker, 1986; Box and others, 199360.7703333333333159.107166666667 2.100000000000000224 2261 Bethel 60 46.220000000000000N159 6.430000000000000W82JD 435A Andesite K-Ar Plagioclase69.000000000000000 Moll, written communication, 1986; Robinson and Decker, 1986; Box and others, 1993 60.7703333333333159.107166666667 2.100000000000000225 2261 Bethel 60 35.000000000000000N16016.300000000000000W82JD 450B Rhyolite K-Ar Whole-rock 59.300000000000000 Reifenstuhl, pers. comm., 1984, Moll, writ. comm., 1986; Robinson and Decker, 1986; Box and others, 199360.5833333333333160.271666666667 1.800000000000000222 1603 Bethel 60 35.000000000000000N16016.300000000000000W82JD 450B Rhyolite K-Ar Biotite 62.500000000000000 Reifenstuhl, pers. comm., 1984, Moll, writ. comm., 1986; Robinson and Decker, 1986; Box and others, 199360.5833333333333160.271666666667 1.900000000000000223 1603 Bethel 60 19.400000000000000N15937.600000000000000W86ASb 1 Andesite 40/39? Whole-rock 74.300000000000000 Box and others, 1993 60.3233333333333159.626666666667 2.20000000000000035322261 Bethel 60 21.300000000000000N15951.800000000000000W86ASb 9a Basalt K-Ar Whole-rock .418000000000000Olivine basalt Box and others, 1993 60.3550000000000159.863333333333 .0160000000000003521330 Bethel 60 56.450000000000000N15939.550000000000000W87ACz 61 Quartz diorite K-Ar Biotite 65.100000000000000 Box and others, 1993 60.9408333333333159.659166666667 2.00000000000000035221665 Bethel 60 45.930000000000000N16013.800000000000000W87ACz 75M Rhyolite Fission-track Riebeckite 54.700000000000000Alkali rhyolite Box and others, 1993 60.7655000000000160.230000000000 1.60000000000000035261110 Bethel 60 23.620000000000000N159 7.050000000000000W87AJm 271bDiorite Fission-track Hornblende 68.000000000000000 Box and others, 1993 60.3936666666667159.117500000000 2.00000000000000035311665 Bethel 60 9.130000000000000N15956.180000000000000W87AJm 36a Granodiorite 40/39 Biotite 70.300000000000000Laser fusion analysis Box and others, 1993 60.1521666666667159.936333333333 2.10000000000000035341658 Bethel 60 34.660000000000000N16047.250000000000000W87ATf 30 Granodiorite K-Ar Biotite 115.00000000000000 Box and others, 1993 60.5776666666667160.787500000000 3.50000000000000035232530 Bethel 60 16.480000000000000N15938.000000000000000W87ATf 51 Granite Fission-track Biotite 69.800000000000000 Box and others, 1993 60.2746666666667159.633333333333 2.10000000000000035331658 Bethel 60 28.070000000000000N15924.530000000000000W87ATf 56 Granite 40/39 Biotite 64.300000000000000 Box and others, 1993 60.4678333333333159.408833333333 1.90000000000000035301660 Bethel 60 31.250000000000000N159 9.830000000000000W87ATf 62 Granite Fission-track Biotite 60.800000000000000 Box and others, 1993 60.5208333333333159.163833333333 1.80000000000000035291656 Bethel 60 38.630000000000000N15939.680000000000000W87ATf 72 Granite Fission-track Biotite 62.200000000000000 Box and others, 1993 60.6438333333333159.661333333333 1.90000000000000035281660 Bethel 60 34.530000000000000N16025.600000000000000W88AMl 12 Andesite Fission-track Plagioclase59.500000000000000Large error Box and others, 1993 60.5755000000000160.42666666666712.30000000000000035351605 Bethel 60 46.920000000000000N15910.170000000000000W88ASb 99a Dacite Fission-track Biotite 69.500000000000000Dacite flow Box and others, 1993 60.7820000000000159.169500000000 2.10000000000000035272260 Bethel 60 5.580000000000000N16036.000000000000000W88ML 22b Gneiss Fission-track Apatite 66.600000000000000Granite gneiss, Apatite cooling age Box and others, 1993 60.0930000000000160.600000000000 4.60000000000000035369420 Bethel 60 3.380000000000000N15915.460000000000000W89AJm 34 Sandstone Fission-track Apatite 29.700000000000000Apatite cooling age Box and others, 1993 60.0563333333333159.257666666667 4.20000000000000035392872 Bethel 60 10.700000000000000N160 7.670000000000000W89ASb 101 Dacite Fission-track Apatite 47.500000000000000Apatite cooling age Box and others, 1993 60.1783333333333160.127833333333 6.90000000000000035376412 Bethel 60 5.300000000000000N15916.130000000000000W89ASb 38 Sandstone Fission-track Apatite 90.500000000000000Apatite cooling age Box and others, 1993 60.0883333333333159.26883333333317.00000000000000035383005 Nunivak Island 60 12.800000000000000N16727.500000000000000WA1 Basalt K-Ar Whole-rock 6.280000000000000Age recalculated with 1976 constants Dalrymple et al, 1967, Cox and Dalrymple, 1967, Hoare et al, 1968 60.2133333333333167.458333333333 .18000000000000010811023 Nunivak Island 60 1.000000000000000N16619.000000000000000WA101 Basalt K-Ar Whole-rock .740000000000000 Cox and Dalrymple, 1967, Hoare et al, 1968, Mankinen and Dalrymple, 1979 60.0166666666667166.316666666667 .0900000000000001073330 Nunivak Island 60 0.000000000000000N16620.000000000000000WA102 Basalt K-Ar Whole-rock .070000000000000 Cox and Dalrymple, 1967, Hoare et al, 1968, Mankinen and Dalrymple, 1979 60.0000000000000166.333333333333 .0200000000000001067320 Nunivak Island 60 0.000000000000000N16614.000000000000000WA108 Basalt K-Ar Whole-rock .670000000000000 Cox and Dalrymple, 1967, Hoare et al, 1968, Mankinen and Dalrymple, 1979 60.0000000000000166.233333333333 .0700000000000001066330 Nunivak Island 60 13.500000000000000N16657.000000000000000WA11 Basalt K-Ar Whole-rock 5.010000000000000Dalrymple et al, 1967 Cox and Dalrymple, 1967, Hoare et al, 1968, Mankinen and Dalrymple, 1979 60.2250000000000166.950000000000 .15000000000000010861024 Cape Mendenhall 59 57.000000000000000N16610.000000000000000WA114 Basalt K-Ar AW .140000000000000 Cox and Dalrymple, 1967, Hoare et al, 1968, Mankinen and Dalrymple, 1979 59.9500000000000166.166666666667 .020000000000000313 320 Nunivak Island 60 13.500000000000000N16657.000000000000000WA12 Basalt K-Ar Whole-rock 4.950000000000000Dalrymple et al, 1967 Cox and Dalrymple, 1967, Hoare et al, 1968, Mankinen and Dalrymple, 1979 60.2250000000000166.950000000000 .14000000000000010871024 Cape Mendenhall 59 59.000000000000000N16622.000000000000000WA125 Basalt K-Ar AW .030000000000000 Cox and Dalrymple, 1967, Hoare et al, 1968, Mankinen and Dalrymple, 1979 59.9833333333333166.366666666667 .020000000000000315 320 Nunivak Island 60 1.000000000000000N16611.000000000000000WA126 Basalt K-Ar AW .090000000000000 Cox and Dalrymple, 1967, Hoare et al, 1968 60.0166666666667166.183333333333 .0200000000000001070320 Nunivak Island 60 13.200000000000000N16656.400000000000000WA15 Basalt K-Ar Whole-rock 5.200000000000000Age recalculated with 1976 constants Dalrymple et al, 1967, Cox and Dalrymple, 1967, Hoare et al, 1968 60.2200000000000166.940000000000 .15000000000000010831023 Nunivak Island 60 12.700000000000000N16656.700000000000000WA17 Basalt K-Ar Whole-rock 5.010000000000000Dalrymple et al, 1967 Cox and Dalrymple, 1967, Hoare et al, 1968, Mankinen and Dalrymple, 1979 60.2116666666667166.945000000000 .15000000000000010801024 Nunivak Island 60 12.000000000000000N16655.000000000000000WA19 Basalt K-Ar Whole-rock 3.240000000000000 Cox and Dalrymple, 1967, Hoare et al, 1968, Mankinen and Dalrymple, 1979 60.2000000000000166.916666666667 .10000000000000010771024 Nunivak Island 60 12.800000000000000N16727.500000000000000WA2 Basalt K-Ar Whole-rock 4.240000000000000Dalrymple et al, 1967 Cox and Dalrymple, 1967, Hoare et al, 1968, Mankinen and Dalrymple, 1979 60.2133333333333167.458333333333 .12000000000000010821024 Nunivak Island 60 19.600000000000000N16642.200000000000000WA23 Basalt K-Ar Whole-rock 1.550000000000000 Hoare et al, 1968 60.3266666666667166.703333333333 .1500000000000001093350 Nunivak Island 60 12.500000000000000N16726.100000000000000WA3 Basalt K-Ar Whole-rock 4.140000000000000Dalrymple et al, 1967 Cox and Dalrymple, 1967, Hoare et al, 1968, Mankinen and Dalrymple, 1979 60.2083333333333167.435000000000 .12000000000000010781024 Nunivak Island 60 21.900000000000000N16619.900000000000000WA35 Basalt K-Ar Whole-rock .930000000000000 Cox and Dalrymple, 1967, Hoare et al, 1968, Mankinen and Dalrymple, 1979 60.3650000000000166.331666666667 .0700000000000001095350 Nunivak Island 60 23.200000000000000N16614.500000000000000WA41 Basalt K-Ar Whole-rock .950000000000000 Cox and Dalrymple, 1967, Hoare et al, 1968, Mankinen and Dalrymple, 1979 60.3866666666667166.241666666667 .0800000000000001097350 Nunivak Island 60 25.300000000000000N166 7.900000000000000WA45 Basalt K-Ar Whole-rock .870000000000000 Hoare et al, 1968, Mankinen and Dalrymple, 1979 60.4216666666667166.131666666667 .0700000000000001098350 Nunivak Island 60 22.000000000000000N166 6.000000000000000WA46 Basalt K-Ar Whole-rock .810000000000000 Cox and Dalrymple, 1967, Hoare et al, 1968, Mankinen and Dalrymple, 1979 60.3666666666667166.100000000000 .1000000000000001096350 Nunivak Island 60 20.900000000000000N166 5.100000000000000WA48 Basalt K-Ar Whole-rock .860000000000000 Cox and Dalrymple, 1967, Hoare et al, 1968, Mankinen and Dalrymple, 1979 60.3483333333333166.085000000000 .0800000000000001094350 Nunivak Island 60 19.000000000000000N166 1.000000000000000WA50 Basalt K-Ar Whole-rock .880000000000000 Cox and Dalrymple, 1967, Hoare et al, 1968, Mankinen and Dalrymple, 1979 60.3166666666667166.016666666667 .0700000000000001091466 Nunivak Island 60 19.400000000000000N166 0.000000000000000WA51 Basalt K-Ar Whole-rock 1.700000000000000 Cox and Dalrymple, 1967, Hoare et al, 1968, Mankinen and Dalrymple, 1979 60.3233333333333166.000000000000 .0900000000000001092350 Nunivak Island 60 16.000000000000000N16541.100000000000000WA57 Basalt K-Ar Whole-rock 1.580000000000000Age recalculated with 1976 constants Cox and Dalrymple, 1967, Hoare et al, 1968, Mankinen and Dalrymple, 1979 60.2666666666667165.685000000000 .0900000000000001090350 Nunivak Island 60 13.400000000000000N16541.600000000000000WA59A Basalt K-Ar Whole-rock .630000000000000 Cox and Dalrymple, 1967, Hoare et al, 1968, Mankinen and Dalrymple, 1979 60.2233333333333165.693333333333 .0900000000000001085330 Nunivak Island 60 14.000000000000000N16717.700000000000000WA6 Basalt K-Ar Whole-rock 3.360000000000000 Hoare et al, 1968, Mankinen and Dalrymple, 1979 60.2333333333333167.295000000000 .10000000000000010891024 Nunivak Island 60 12.600000000000000N16540.900000000000000WA61 Basalt K-Ar Whole-rock .750000000000000 Cox and Dalrymple, 1967, Hoare et al, 1968, Mankinen and Dalrymple, 1979 60.2100000000000165.681666666667 .7500000000000001079330 Nunivak Island 60 3.200000000000000N16540.900000000000000WA69 Basalt K-Ar Whole-rock .300000000000000 Cox and Dalrymple, 1967, Hoare et al, 1968, Mankinen and Dalrymple, 1979 60.0533333333333165.681666666667 .0700000000000001076330 Nunivak Island 60 14.000000000000000N16712.900000000000000WA7 Basalt K-Ar Whole-rock 3.400000000000000 Cox and Dalrymple, 1967, Hoare et al, 1968, Mankinen and Dalrymple, 1979 60.2333333333333167.215000000000 .12000000000000010881024 Nunivak Island 60 1.000000000000000N16538.000000000000000WA70 Basalt K-Ar Whole-rock .500000000000000 Cox and Dalrymple, 1967, Hoare et al, 1968, Mankinen and Dalrymple, 1979 60.0166666666667165.633333333333 .0600000000000001068330 Cape Mendenhall 59 58.700000000000000N16539.400000000000000WA71 Basalt K-Ar Whole-rock .280000000000000 Cox and Dalrymple, 1967, Hoare et al, 1968, Mankinen and Dalrymple, 1979 59.9783333333333165.656666666667 .060000000000000314 320 Cape Mendenhall 59 56.000000000000000N16533.700000000000000WA74 Basalt K-Ar Whole-rock .340000000000000 Cox and Dalrymple, 1967, Hoare et al, 1968 59.9333333333333165.561666666667 .120000000000000312 330 Cape Mendenhall 59 52.000000000000000N16551.000000000000000WA78 Basalt K-Ar Whole-rock .360000000000000 Cox and Dalrymple, 1967, Hoare et al, 1968, Mankinen and Dalrymple, 1979 59.8666666666667165.850000000000 .090000000000000311 330 Nunivak Island 60 13.200000000000000N167 3.800000000000000WA8 Basalt K-Ar Whole-rock 4.970000000000000Dalrymple et al, 1967 Cox and Dalrymple, 1967, Hoare et al, 1968, Mankinen and Dalrymple, 1979 60.2200000000000167.063333333333 .15000000000000010841024 Nunivak Island 60 1.000000000000000N166 4.000000000000000WA86 Basalt K-Ar Whole-rock .290000000000000 Cox and Dalrymple, 1967, Hoare et al, 1968, Mankinen and Dalrymple, 1979 60.0166666666667166.066666666667 .0500000000000001069330 Nunivak Island 60 2.000000000000000N166 5.000000000000000WA88 Basalt K-Ar Whole-rock .340000000000000Nanwaksjiak crater Cox and Dalrymple, 1967, Hoare et al, 1968, Mankinen and Dalrymple, 1979 60.0333333333333166.083333333333 .0500000000000001074330 Nunivak Island 60 2.000000000000000N166 5.000000000000000WA91 Basalt K-Ar Whole-rock .220000000000000Nanwaksjiak crater Cox and Dalrymple, 1967, Hoare et al, 1968, Mankinen and Dalrymple, 1979 60.0333333333333166.083333333333 .0900000000000001075330 Nunivak Island 60 1.000000000000000N16612.000000000000000WA96 Basalt K-Ar Whole-rock .110000000000000 Cox and Dalrymple, 1967, Hoare et al, 1968, Mankinen and Dalrymple, 1979 60.0166666666667166.200000000000 .0300000000000001071320 Nunivak Island 60 1.000000000000000N16616.000000000000000WA97 Basalt K-Ar Whole-rock .690000000000000 Cox and Dalrymple, 1967, Hoare et al, 1968, Mankinen and Dalrymple, 1979 60.0166666666667166.266666666667 .0900000000000001072330 Hagemeister Is. 58 51.200000000000000N16012.800000000000000WB78-1125G Andesite K-Ar Hornblende 76.600000000000000Dike Box, 1985a 58.8533333333333160.213333333333 4.500000000000000498 2260 Hagemeister Is. 58 50.800000000000000N16013.900000000000000WB78-1133G Diorite K-Ar Biotite 75.000000000000000 Box, 1985a 58.8466666666667160.231666666667 2.900000000000000497 1655 Hagemeister Is. 58 36.900000000000000N161 4.400000000000000WB78-1152G Granodiorite K-Ar Biotite 183.00000000000000 Box, 1985a 58.6150000000000161.073333333333 7.000000000000000490 3510 Hagemeister Is. 58 55.800000000000000N16041.900000000000000WB78-1171G Gabbro K-Ar Hornblende 174.00000000000000Near Aeolus Mtn. Box, 1985a 58.9300000000000160.698333333333 8.000000000000000502 3406 Bethel 60 20.500000000000000N16018.800000000000000WB78-1213 Schist K-Ar Actinolite 146.00000000000000Actinolite schist Box and others, 1993 60.3416666666667160.31333333333315.00000000000000035245239 Goodnews Bay 59 32.600000000000000N16127.700000000000000WDT75-60 Amphibolite K-Ar Hornblende 169.70000000000000Garnet amphibolite. Turner and others, in prep., 2006 59.5433333333333161.461666666667 5.00000000000000035829420 Goodnews Bay 59 32.600000000000000N16127.500000000000000WDT75-61 Retrograded pyroxene granuliteK-Ar Biotite 2231.0000000000000Replicate analyses, 2271+/-70 average age Turner and others, in prep., 2006 59.5433333333333161.45833333333367.00000000000000035839420 Goodnews Bay 59 32.600000000000000N16127.500000000000000WDT75-61r Retrograded pyroxene granuliteK-Ar Biotite 2312.0000000000000Replicate analyses, 2271+/-70 average age Turner and others, in prep., 2006 59.5433333333333161.45833333333370.00000000000000035849420 Goodnews Bay 59 34.700000000000000N16127.300000000000000WDT75-62 Amphibolite K-Ar Hornblende 247.80000000000000Garnet amphibolite. Turner and others, in prep., 2006 59.5783333333333161.455000000000 7.20000000000000035859420 Goodnews Bay 59 34.600000000000000N16127.000000000000000WDT75-63 Gneiss K-Ar Biotite 133.20000000000000Biotite granodiorite gneiss Turner and others, in prep., 2006 59.5766666666667161.450000000000 3.90000000000000035869420 Goodnews Bay 59 34.300000000000000N16126.500000000000000WDT75-64 Gneiss K-Ar Biotite 130.80000000000000Biotite-hornblende granodiorite gneiss Turner and others, in prep., 2006 59.5716666666667161.441666666667 3.80000000000000035879420 Goodnews Bay 59 34.300000000000000N16126.500000000000000WDT75-64 Gneiss K-Ar Hornblende 141.70000000000000Biotite-hornblende granodiorite gneiss Turner and others, in prep., 2006 59.5716666666667161.441666666667 4.10000000000000035889420 Goodnews Bay 59 33.700000000000000N16125.900000000000000WDT75-66 Gneiss K-Ar Biotite 128.90000000000000Biotite-hornblende granodiorite gneiss Turner and others, in prep., 2006 59.5616666666667161.431666666667 3.80000000000000035899420 Goodnews Bay 59 33.700000000000000N16125.900000000000000WDT75-66 Gneiss K-Ar Hornblende 140.50000000000000Biotite-hornblende granodiorite gneiss Turner and others, in prep., 2006 59.5616666666667161.431666666667 4.10000000000000035909420 Goodnews Bay 59 33.000000000000000N16126.400000000000000WDT75-67 Gneiss K-Ar Biotite 128.00000000000000Biotite-muscovite granodiorite gneiss Turner and others, in prep., 2006 59.5500000000000161.440000000000 3.70000000000000035919420 Goodnews Bay 59 33.000000000000000N16126.400000000000000WDT75-67 Gneiss K-Ar Muscovite 135.80000000000000Biotite-muscovite granodiorite gneiss Turner and others, in prep., 2006 59.5500000000000161.440000000000 4.00000000000000035929420 Goodnews Bay 59 32.800000000000000N16126.200000000000000WDT75-68 Amphibolite K-Ar Hornblende 144.20000000000000Biotite garnet amphibolite Turner and others, in prep., 2006 59.5466666666667161.436666666667 4.20000000000000035939420 Goodnews Bay 59 33.800000000000000N16122.800000000000000WDT75-69 Amphibolite K-Ar Hornblende 466.30000000000000Garnet amphibolite. Turner and others, in prep., 2006 59.5633333333333161.38000000000013.70000000000000035949420 Goodnews Bay 59 33.800000000000000N16122.800000000000000WDT75-69 Amphibolite 40/39 Total FusionHornblende 478.00000000000000Garnet amphibolite. Disturbed spectrum Turner and others, in prep., 2006 59.5633333333333161.380000000000 4.20000000000000036509420 Goodnews Bay 59 33.500000000000000N16122.800000000000000WDT75-70 Gneiss K-Ar Biotite 498.00000000000000Biotite quartz monzonite gneiss Turner and others, in prep., 2006 59.5583333333333161.38000000000014.70000000000000035959420 Goodnews Bay 59 33.500000000000000N16122.800000000000000WDT75-70 Gneiss 40/39 total fusionBiotite 487.00000000000000Biotite quartz monzonite gneiss. Spectra suggests partial argon loss Turner and others, in prep., 2006 59.5583333333333161.380000000000 4.30000000000000036499420 Goodnews Bay 59 33.300000000000000N16122.300000000000000WDT75-71 Pyroxene granulite K-Ar Biotite 1921.0000000000000Four replicate analyses, 2255+/-271.2 average age Turner and others, in prep., 2006 59.5550000000000161.37166666666757.60000000000000035969420 Goodnews Bay 59 33.300000000000000N16122.300000000000000WDT75-71r2 Pyroxene granulite K-Ar Biotite 2159.0000000000000Four replicate analyses, 2255+/-271.2 average age Turner and others, in prep., 2006 59.5550000000000161.37166666666765.00000000000000035979420 Goodnews Bay 59 33.300000000000000N16122.300000000000000WDT75-71r3 Pyroxene granulite K-Ar Biotite 2531.0000000000000Four replicate analyses, 2255+/-271.2 average age Turner and others, in prep., 2006 59.5550000000000161.37166666666776.00000000000000035989420 Goodnews Bay 59 33.300000000000000N16122.300000000000000WDT75-71r4 Pyroxene granulite K-Ar Biotite 2409.0000000000000Four replicate analyses, 2255+/-271.2 average age Turner and others, in prep., 2006 59.5550000000000161.37166666666773.00000000000000035999420 Goodnews Bay 59 33.600000000000000N16121.300000000000000WDT75-72 Pyroxene granulite K-Ar Biotite 2434.0000000000000Five replicate analyses, 2474+/-75 average age Turner and others, in prep., 2006 59.5600000000000161.35500000000073.00000000000000036009420 Goodnews Bay 59 33.600000000000000N16121.300000000000000WDT75-72 Pyroxene granulite 40/39 Plateau Biotite 2520.0000000000000Five replicate conventional K-Ar analyses, 2474+/-75 average age Turner and others, in prep., 2006 59.5600000000000161.355000000000 .00000000000000036489420 Goodnews Bay 59 33.600000000000000N16121.300000000000000WDT75-72r2 Pyroxene granulite K-Ar Biotite 2432.0000000000000Five replicate analyses, 2474+/-75 average age Turner and others, in prep., 2006 59.5600000000000161.35500000000073.00000000000000036019420 Goodnews Bay 59 33.600000000000000N16121.300000000000000WDT75-72r3 Pyroxene granulite K-Ar Biotite 2441.0000000000000Five replicate analyses, 2474+/-75 average age Turner and others, in prep., 2006 59.5600000000000161.35500000000074.00000000000000036029420 Goodnews Bay 59 33.600000000000000N16121.300000000000000WDT75-72r4 Pyroxene granulite K-Ar Biotite 2564.0000000000000Five replicate analyses, 2474+/-75 average age Turner and others, in prep., 2006 59.5600000000000161.35500000000077.00000000000000036039420 Goodnews Bay 59 33.600000000000000N16121.300000000000000WDT75-72r5 Pyroxene granulite K-Ar Biotite 2500.0000000000000Five replicate analyses, 2474+/-75 average age Turner and others, in prep., 2006 59.5600000000000161.35500000000077.00000000000000036049420 Goodnews Bay 59 33.800000000000000N16122.900000000000000WDT75-73 Gneiss K-Ar Biotite 196.10000000000000Biotite-muscovite gneiss Turner and others, in prep., 2006 59.5633333333333161.381666666667 5.70000000000000036059420 Goodnews Bay 59 33.800000000000000N16122.900000000000000WDT75-73 Gneiss K-Ar Muscovite 153.20000000000000Biotite-muscovite gneiss Turner and others, in prep., 2006 59.5633333333333161.381666666667 4.50000000000000036069420 Goodnews Bay 59 34.000000000000000N16123.100000000000000WDT75-74 Amphibolite K-Ar Hornblende 247.10000000000000Garnet amphibolite. Turner and others, in prep., 2006 59.5666666666667161.385000000000 7.20000000000000036079420 Goodnews Bay 59 32.800000000000000N16124.200000000000000WDT75-76 Amphibolite K-Ar Hornblende 1037.0000000000000Garnet amphibolite. Replicate analyses, 1049+/-32 average age Turner and others, in prep., 2006 59.5466666666667161.40333333333331.00000000000000036089420 Goodnews Bay 59 32.800000000000000N16124.200000000000000WDT75-76 Amphibolite 40/39 Total FusionHornblende 1124.0000000000000Garnet amphibolite. Replicate conventional K-Ar analyses, 1049+/-32 average age; 40/39 plateau age 1.16 Ga. Turner and others, in prep., 2006 59.5466666666667161.403333333333 8.00000000000000036519420 Goodnews Bay 59 32.800000000000000N16124.200000000000000WDT75-76r Amphibolite K-Ar Hornblende 1063.0000000000000Garnet amphibolite. Replicate analyses, 1049+/-32 average age Turner and others, in prep., 2006 59.5466666666667161.40333333333332.00000000000000036099420 Goodnews Bay 59 32.400000000000000N16135.300000000000000WDT75-78 Greenschist K-Ar Actinolite 137.10000000000000 Turner and others, in prep., 2006 59.5400000000000161.588333333333 4.00000000000000036109420 Goodnews Bay 59 32.600000000000000N16135.600000000000000WDT75-79 Schist K-Ar Biotite 130.40000000000000Biotite-epidote schist Turner and others, in prep., 2006 59.5433333333333161.593333333333 3.80000000000000036119420 Goodnews Bay 59 32.600000000000000N16135.600000000000000WDT75-81 Greenschist K-Ar Actinolite 146.60000000000000Biotite-bearing greenschist Turner and others, in prep., 2006 59.5433333333333161.593333333333 4.30000000000000036129420 Goodnews Bay 59 39.000000000000000N16112.700000000000000WDT75-82 Gneiss K-Ar Biotite 212.60000000000000Biotite-hornblende diorite gneiss. Replicate analyses, 214.2+/-6.3 average age reported. Analytical data in error, wrong K2O reported for biotite.Turner and others, in prep., 2006 59.6500000000000161.211666666667 6.20000000000000036139420 Goodnews Bay 59 39.000000000000000N16112.700000000000000WDT75-82 Gneiss K-Ar Hornblende 217.80000000000000Biotite-hornblende diorite gneiss Turner and others, in prep., 2006 59.6500000000000161.211666666667 6.40000000000000036159420 Goodnews Bay 59 39.000000000000000N16112.700000000000000WDT75-82r Gneiss K-Ar Biotite 215.80000000000000Biotite-hornblende diorite gneiss. Replicate analyses, 214.2+/-6.3 average age reported. Analytical data in error, wrong K2O reported for biotite.Turner and others, in prep., 2006 59.6500000000000161.211666666667 6.30000000000000036149420 Goodnews Bay 59 39.000000000000000N16112.600000000000000WDT75-83 Gneiss K-Ar Biotite 212.60000000000000Biotite-hornblende diorite gneiss. Analytical data is same as biotite for DT75-82, is suspicious and possibly in error. Turner and others, in prep., 2006 59.6500000000000161.210000000000 6.20000000000000036169420 Goodnews Bay 59 55.200000000000000N16155.900000000000000WDT76-21 Hornblende diorite K-Ar Hornblende 122.20000000000000 Turner and others, in prep., 2006 59.9200000000000161.931666666667 3.60000000000000036179420 Goodnews Bay 59 54.200000000000000N16155.200000000000000WDT76-22 Amphibolite K-Ar Hornblende 130.60000000000000Garnet amphibolite. Turner and others, in prep., 2006 59.9033333333333161.920000000000 3.80000000000000036189420 Goodnews Bay 59 55.300000000000000N16154.100000000000000WDT76-31 Gneiss K-Ar Muscovite 130.60000000000000Biotite-muscovite gneiss Turner and others, in prep., 2006 59.9216666666667161.901666666667 3.80000000000000036199420 Goodnews Bay 59 55.300000000000000N16154.100000000000000WDT76-31 Gneiss K-Ar Biotite 196.80000000000000Biotite-muscovite gneiss. Impure biotite Turner and others, in prep., 2006 59.9216666666667161.901666666667 5.80000000000000036209420 Goodnews Bay 59 55.500000000000000N16153.900000000000000WDT76-34 Gneiss K-Ar Biotite 140.80000000000000Biotite gneiss Turner and others, in prep., 2006 59.9250000000000161.898333333333 4.10000000000000036219420 Goodnews Bay 59 55.800000000000000N16153.700000000000000WDT76-36 Schist K-Ar Biotite 395.60000000000000Biotite-muscovite-quartz schist. Impure biotite Turner and others, in prep., 2006 59.9300000000000161.89500000000012.00000000000000036229420 Goodnews Bay 59 55.800000000000000N16153.700000000000000WDT76-36 Schist K-Ar Muscovite 156.50000000000000Biotite-muscovite-quartz schist Turner and others, in prep., 2006 59.9300000000000161.895000000000 4.60000000000000036239420 Goodnews Bay 59 54.800000000000000N16053.800000000000000WDT76-39 Granodiorite gneiss K-Ar Biotite 292.40000000000000 Turner and others, in prep., 2006 59.9133333333333160.896666666667 8.60000000000000036249420 Goodnews Bay 59 56.800000000000000N16054.700000000000000WDT76-41 Schist K-Ar Biotite 158.80000000000000Biotite-hornblende epidote schist Turner and others, in prep., 2006 59.9466666666667160.911666666667 4.70000000000000036259420 Goodnews Bay 59 56.800000000000000N16054.700000000000000WDT76-41 Schist K-Ar Hornblende 129.60000000000000Biotite-hornblende epidote schist Turner and others, in prep., 2006 59.9466666666667160.911666666667 3.80000000000000036269420 Goodnews Bay 59 56.800000000000000N16054.800000000000000WDT76-42 Gneiss K-Ar Biotite 133.30000000000000Biotite-muscovite granodiorite gneiss Turner and others, in prep., 2006 59.9466666666667160.913333333333 4.00000000000000036279420 Goodnews Bay 59 56.400000000000000N16055.400000000000000WDT76-46 Schist K-Ar Biotite 223.70000000000000Biotite-hornblende muscovite schist Turner and others, in prep., 2006 59.9400000000000160.923333333333 6.60000000000000036289420 Goodnews Bay 59 56.400000000000000N16055.400000000000000WDT76-46 Schist K-Ar Hornblende 192.20000000000000Biotite-hornblende muscovite schist 59.9400000000000160.923333333333 5.60000000000000036299420 Goodnews Bay 59 55.300000000000000N16053.200000000000000WDT76-52 Quartz muscovite gneiss K-Ar Muscovite 130.60000000000000 Turner and others, in prep., 2006 59.9216666666667160.886666666667 3.90000000000000036309420 Goodnews Bay 59 58.200000000000000N16050.800000000000000WDT76-56 Schist K-Ar Biotite 351.30000000000000Biotite-muscovite-hornblende schist Turner and others, in prep., 2006 59.9700000000000160.84666666666710.30000000000000036319420 Goodnews Bay 59 58.200000000000000N16050.800000000000000WDT76-56 Schist K-Ar Muscovite 186.90000000000000Biotite-muscovite-hornblende schist Turner and others, in prep., 2006 59.9700000000000160.846666666667 5.50000000000000036329420 Goodnews Bay 59 57.300000000000000N16053.900000000000000WDT76-57 Gneiss K-Ar Biotite 131.90000000000000Biotite-muscovite gneiss Turner and others, in prep., 2006 59.9550000000000160.898333333333 3.90000000000000036339420 Goodnews Bay 59 57.300000000000000N16053.900000000000000WDT76-57 Gneiss K-Ar Muscovite 127.70000000000000Biotite-muscovite gneiss Turner and others, in prep., 2006 59.9550000000000160.898333333333 3.90000000000000036349420 Goodnews Bay 59 57.200000000000000N16053.600000000000000WDT76-58 Hornblende diorite K-Ar Hornblende 128.70000000000000Minimum age Turner and others, in prep., 2006 59.9533333333333160.893333333333 3.80000000000000036359420 Goodnews Bay 59 56.700000000000000N16052.900000000000000WDT76-61 Porphoblastic amphibolite K-Ar Hornblende 201.00000000000000 Turner and others, in prep., 2006 59.9450000000000160.881666666667 5.90000000000000036369420 Goodnews Bay 59 54.300000000000000N16054.200000000000000WDT76-62 Amphibolite K-Ar Hornblende 406.40000000000000 Turner and others, in prep., 2006 59.9050000000000160.90333333333318.00000000000000036379420 Goodnews Bay 59 54.100000000000000N16054.100000000000000WDT76-66 Unknown K-Ar Biotite 246.90000000000000Rock type not reported Turner and others, in prep., 2006 59.9016666666667160.901666666667 7.20000000000000036389420 Goodnews Bay 59 54.000000000000000N16053.800000000000000WDT76-69a Amphibolite 40/39 Plateau Hornblende 1778.0000000000000Garnet amphibolite. Rerun of conventional K-Ar age Paul Layer, written commun. 2006 59.9000000000000160.89666666666789.00000000000000035599420 Goodnews Bay 59 54.000000000000000N16053.800000000000000WDT76-69a Amphibolite K-Ar Hornblende 1770.0000000000000Garnet amphibolite. Turner and others, in prep., 2006 59.9000000000000160.89666666666753.00000000000000036399420 Bethel 60 5.600000000000000N16036.000000000000000WDT76-70 Amphibolite 40/39 Plateau Hornblende 936.00000000000000Biotite amphibolite. Rerun of conventional K-Ar age, shows disturbed spectra, indicating conventional age is suspect Paul Layer, written commun. 2006 60.0933333333333160.60000000000036.00000000000000035609420 Bethel 60 5.600000000000000N16036.000000000000000WDT76-70 Amphibolite K-Ar Biotite 685.00000000000000Biotite amphibolite Turner and others, in prep., 2006 60.0933333333333160.60000000000020.00000000000000036409420 Bethel 60 5.600000000000000N16036.000000000000000WDT76-70 Amphibolite K-Ar Hornblende 915.00000000000000Biotite amphibolite Turner and others, in prep., 2006 60.0933333333333160.60000000000027.00000000000000036419420 Bethel 60 5.600000000000000N16036.000000000000000WDT76-70r Amphibolite 40/39 Plateau Hornblende 974.00000000000000Biotite amphibolite. Replicate rerun of conventional K-Ar age, shows disturbed spectra, indicating conventional age is suspect Paul Layer, written commun. 2006 60.0933333333333160.60000000000010.70000000000000035619420 Bethel 60 5.700000000000000N16037.700000000000000WDT76-71 Gneiss K-Ar Hornblende 266.00000000000000Biotite-hornblende gneiss. Minimum age Turner and others, in prep., 2006 60.0950000000000160.628333333333 7.80000000000000036429420 Bethel 60 7.600000000000000N16034.000000000000000WDT76-72 Metamorphic rock K-Ar Biotite 143.60000000000000Biotite-hornblende-epidote-plagioclase rock. Minimum age Turner and others, in prep., 2006 60.1266666666667160.566666666667 4.20000000000000036439420 Bethel 60 7.600000000000000N16034.000000000000000WDT76-72 Metamorphic rock K-Ar Hornblende 153.40000000000000Biotite-hornblende-epidote-plagioclase rock. Minimum age Turner and others, in prep., 2006 60.1266666666667160.566666666667 4.50000000000000036449420 Bethel 60 7.600000000000000N16034.000000000000000WDT76-74 Metamorphic rock K-Ar Biotite 162.10000000000000Biotite-hornblende-epidote rock Turner and others, in prep., 2006 60.1266666666667160.566666666667 4.70000000000000036459420 Bethel 60 7.600000000000000N16034.000000000000000WDT76-74 Metamorphic rock K-Ar Hornblende 328.70000000000000Biotite-hornblende-epidote rock Turner and others, in prep., 2006 60.1266666666667160.566666666667 9.70000000000000036469420 Goodnews Bay 59 51.400000000000000N16054.200000000000000WDT76-76 Amphibolite K-Ar Hornblende 637.00000000000000Garnet amphibolite. Turner and others, in prep., 2006 59.8566666666667160.90333333333319.00000000000000036479420 Pribilof Islands 56 34.500000000000000N16930.000000000000000WG199 Quartz diorite K-Ar Plagioclase55.000000000000000 Silberman and Hopkins,1976, Hopkins and Silberman, 1978 56.5750000000000169.500000000000 2.00000000000000011921301 Pribilof Islands 56 34.500000000000000N16930.000000000000000WG199 Quartz diorite K-Ar Sericite 49.500000000000000 Silberman and Hopkins, 1976, Hopkins and Silberman, 1978 56.5750000000000169.500000000000 2.00000000000000011931301 Pribilof Islands 56 34.500000000000000N16930.000000000000000WG200 Quartz diorite K-Ar K-feldspar 52.700000000000000 Silberman and Hopkins, 1976, Hopkins and Silberman, 1978 56.5750000000000169.500000000000 2.10000000000000011941301 Pribilof Islands 56 34.500000000000000N16930.000000000000000WG200 Quartz diorite K-Ar Chlorite 57.200000000000000 Silberman and Hopkins, 1976, Hopkins and Silberman, 1978 56.5750000000000169.500000000000 2.30000000000000011951301 Goodnews Bay 59 10.300000000000000N16038.900000000000000WGA5-1310 Quartz diorite K-Ar Biotite 67.400000000000000 Wilson and Smith, 1976, Wilson, 1977, Hoare and Coonrad, 1978, Box, 1985a 59.1716666666667160.648333333333 2.000000000000000467 1660 Goodnews Bay 59 1.300000000000000N16131.400000000000000WGA7-1450 Diorite K-Ar Amphibole 162.40000000000000Crater Hill Wilson and Smith, 1976, Wilson, 1977, Hoare and Coonrad, 1978, Box, 1985a 59.0216666666667161.523333333333 4.900000000000000466 3406 Goodnews Bay 59 27.900000000000000N15910.600000000000000WGB1-3156 Quartz diorite K-Ar Biotite 69.500000000000000 Wilson and Smith, 1976, Wilson, 1977, Hoare and Coonrad, 1978 59.4650000000000159.176666666667 2.000000000000000470 1660 Goodnews Bay 59 27.900000000000000N15910.600000000000000WGB1-3156 Quartz diorite K-Ar Hornblende 63.400000000000000 Wilson and Smith, 1976, Wilson, 1977, Hoare and Coonrad, 1978 59.4650000000000159.176666666667 1.800000000000000471 1660 Goodnews Bay 59 20.800000000000000N16119.500000000000000WGB7-1479a Quartz diorite K-Ar Biotite 71.300000000000000 Wilson and Smith, 1976, Wilson, 1977, Hoare and Coonrad, 1978 59.3466666666667161.325000000000 2.100000000000000469 1665 Goodnews Bay 59 39.900000000000000N15921.600000000000000WGC1-1381 Tonalite - Quartz diorite K-Ar Biotite 72.500000000000000 Wilson and Smith, 1976, Wilson, 1977, Hoare and Coonrad, 1978 59.6650000000000159.360000000000 2.200000000000000477 1660 Goodnews Bay 59 37.100000000000000N160 8.500000000000000WGC4-1300 Granite porphyry K-Ar Hornblende 60.700000000000000 Wilson and Smith, 1976, Wilson, 1977, Hoare and Coonrad, 1978 59.6183333333333160.141666666667 1.800000000000000472 1656 Goodnews Bay 59 50.600000000000000N15910.900000000000000WGD1-3154 Granodiorite K-Ar Amphibole 65.200000000000000Mt. Waskey Wilson and Smith, 1976, Wilson, 1977, Hoare and Coonrad, 1978 59.8433333333333159.181666666667 1.900000000000000478 1660 Goodnews Bay 59 50.600000000000000N15910.900000000000000WGD1-3154 Granodiorite K-Ar Biotite 62.500000000000000Mt. Waskey Wilson and Smith, 1976, Wilson, 1977, Hoare and Coonrad, 1978 59.8433333333333159.181666666667 1.800000000000000479 1660 Goodnews Bay 59 51.200000000000000N16048.800000000000000WGD5-1771 Dacite K-Ar Hornblende 68.700000000000000Sam Creek Hoare and Coonrad, 1978 59.8533333333333160.813333333333 3.000000000000000481 1655 Hagemeister Is. 58 55.100000000000000N16146.500000000000000WHD6-1453e Amphibolite K-Ar Amphibole 186.90000000000000Red Mountain contact zone Hoare and Coonrad, 1978, Box, 1985a 58.9183333333333161.775000000000 5.600000000000000501 3495 Hagemeister Is. 58 54.700000000000000N16146.300000000000000WHD6-2272a Amphibolite K-Ar Amphibole 176.40000000000000Red Mountain contact zone Hoare and Coonrad, 1978, Box, 1985a 58.9116666666667161.771666666667 5.300000000000000500 3495 Pribilof Islands 56 34.500000000000000N16930.000000000000000WISOCHRON Quartz diorite K-Ar Isochron 51.700000000000000 Silberman and Hopkins, 1976, Hopkins and Silberman, 1978 56.5750000000000169.500000000000 1.90000000000000011961301 Pribilof Islands 56 35.650000000000000N16928.450000000000000WP10 Basalt K-Ar Whole-rock 2.190000000000000St. George Island, 1976 constants Cox et al, 1966, Cox, 1966 56.5941666666667169.474166666667 .0600000000000001198450 Pribilof Islands 56 35.650000000000000N16928.450000000000000WP11 Basalt K-Ar Whole-rock 1.810000000000000St. George Island, 1976 constants Cox et al, 1966, Cox, 1966 56.5941666666667169.474166666667 .0700000000000001199450 Pribilof Islands 56 35.650000000000000N16928.450000000000000WP11 Basalt K-Ar Whole-rock 1.830000000000000St. George Island Cox and Dalrymple, 1967, Mankinen and Dalrymple, 1979, Cox et al, 1966 56.5941666666667169.474166666667 .0600000000000001200450 Pribilof Islands 56 35.900000000000000N16928.300000000000000WP12 Basalt K-Ar Whole-rock 2.120000000000000St. George Island Cox and others, 1966, Cox and Dalrymple, 1967, Mankinen and Dalrymple, 1979 56.5983333333333169.471666666667 .0800000000000001201450 Pribilof Islands 56 35.850000000000000N16928.250000000000000WP13 Basalt K-Ar Whole-rock 2.150000000000000St. George Island Cox and others, 1966, Cox and Dalrymple, 1967, Mankinen and Dalrymple, 1979 56.5975000000000169.470833333333 .0800000000000001202450 Pribilof Islands 56 36.000000000000000N16929.150000000000000WP15 Basalt K-Ar Whole-rock 2.190000000000000St. George Island, 1976 constants Cox et al, 1966, Cox, 1966 56.6000000000000169.485833333333 .0800000000000001203450 Pribilof Islands 56 36.200000000000000N16929.700000000000000WP19 Basalt K-Ar Whole-rock 1.970000000000000St. George Island, 1976 constants Cox et al, 1966, Cox, 1966 56.6033333333333169.495000000000 .0600000000000001204450 Pribilof Islands 56 36.300000000000000N16933.350000000000000WP2 Basalt K-Ar Whole-rock 2.000000000000000St. George Island Cox and others, 1966, Cox and Dalrymple, 1967, Mankinen and Dalrymple, 1979 56.6050000000000169.555833333333 .1000000000000001207450 Pribilof Islands 56 36.550000000000000N16931.600000000000000WP20 Basalt K-Ar Whole-rock 1.850000000000000St. George Island, 1976 constants Cox et al, 1966, Cox, 1966 56.6091666666667169.526666666667 .0700000000000001205450 Pribilof Islands 56 35.750000000000000N16930.850000000000000WP21 Basalt K-Ar Whole-rock 1.640000000000000St. George Island Cox and others, 1966; Cox and Dalrymple, 1967, Mankinen and Dalrymple, 1979 56.5958333333333169.514166666667 .0600000000000001206310 Pribilof Islands 56 36.250000000000000N16933.950000000000000WP3 Basalt K-Ar Whole-rock 2.040000000000000St. George Island Cox and Dalrymple, 1967, Mankinen and Dalrymple, 1979, Cox et al, 1966 56.6041666666667169.565833333333 .0800000000000001209450 Pribilof Islands 56 37.000000000000000N16933.000000000000000WP3 Basalt K-Ar Whole-rock 1.970000000000000St. George Island Cox and Dalrymple, 1967, Mankinen and Dalrymple, 1979, Cox et al, 1966 56.6166666666667169.550000000000 .0800000000000003558450 Pribilof Islands 57 11.700000000000000N17024.300000000000000WP35 Basalt K-Ar Whole-rock .100000000000000St. Paul Island. Is age actually reported in abstract? Cox et al, 1966, Cox, 1966 57.1950000000000170.405000000000 .1000000000000001215450 Pribilof Islands 57 11.700000000000000N17024.300000000000000WP35 Basalt K-Ar Whole-rock .125000000000000St. Paul Island, 0.125 my, Rush Hill flow. Average age of multiple splits. Cox et al, 1966, Cox, 1966, Mankinen and Dalrymple, 1979, Lee-Wong et al, 1979 57.1950000000000170.405000000000 .0580000000000001216450 Pribilof Islands 57 11.700000000000000N17024.300000000000000WP35 Basalt K-Ar Whole-rock .200000000000000St. Paul Island Cox et al, 1966, Cox, 1966 57.1950000000000170.405000000000 .1000000000000001217450 Pribilof Islands 57 11.700000000000000N17024.300000000000000WP35 Basalt K-Ar Whole-rock .065000000000000St. Paul Island Cox et al, 1966, Cox, 1966 57.1950000000000170.405000000000 .1000000000000003553450 Pribilof Islands 57 11.700000000000000N17024.300000000000000WP35 Basalt K-Ar Whole-rock .096000000000000St. Paul Island Cox et al, 1966, Cox, 1966 57.1950000000000170.405000000000 .1000000000000003554450 Pribilof Islands 57 11.050000000000000N17024.950000000000000WP38 Basalt K-Ar Whole-rock .330000000000000St. Paul Island Cox and Dalrymple, 1967, Mankinen and Dalrymple, 1979 57.1841666666667170.415833333333 .0400000000000001213450 Pribilof Islands 57 11.050000000000000N17024.950000000000000WP38 Basalt K-Ar Whole-rock .360000000000000St. Paul Island Cox et al, 1966, Cox, 1966 57.1841666666667170.415833333333 .1000000000000001214450 Pribilof Islands 57 11.050000000000000N17024.950000000000000WP38 Basalt K-Ar Whole-rock .330000000000000St. Paul Island Cox and others, 1966, Cox, 1966 57.1841666666667170.415833333333 .1000000000000003555450 Pribilof Islands 56 37.000000000000000N16934.000000000000000WP5 Basalt K-Ar Whole-rock 1.940000000000000St. George Island Cox et al, 1966, Cox, 1966, Mankinen and Dalrymple, 1979 56.6166666666667169.566666666667 .0800000000000001211450 Pribilof Islands 56 37.000000000000000N16934.000000000000000WP5 Basalt K-Ar Whole-rock 1.880000000000000St. George Island Cox et al, 1966, Cox, 1966, Mankinen and Dalrymple, 1979 56.6166666666667169.566666666667 .0900000000000003557450 Pribilof Islands 57 7.850000000000000N17017.450000000000000WP52 Basalt K-Ar Whole-rock .100000000000000St. Paul Island Cox et al, 1966, Cox, 1966 57.1308333333333170.290833333333 .0000000000000001212450 Pribilof Islands 56 34.700000000000000N16930.250000000000000WP66 Basalt K-Ar Whole-rock 2.250000000000000St. George Island, 1976 constants Cox et al, 1966, Cox, 1966 56.5783333333333169.504166666667 .1000000000000001191450 Pribilof Islands 56 35.000000000000000N16935.050000000000000WP67 Basalt K-Ar Whole-rock 2.160000000000000St. George Island, 1976 constants Cox et al, 1966, Cox, 1966 56.5833333333333169.584166666667 .0600000000000001197450