SAMPLECNSACLASSNQUADCLATITUDEN LONGITUDEN ROCK_TYPECMETHODCMINERALC AGENERRORNCOMMENTCREFERENCECLATDEGNLATMINNLATDIRCLONGDEGNLONGMINNLONGDIRCREC_NON 55ATr109 Ambler River 67.0550000000000157.206666666667Schist K-Ar TR 314.000 .000000000000000Tremolite schist (76161) Turner et al, 1978, 1979a, Mayfield et al, 1983 67 3.300000000000000N15712.400000000000000W3919 75AWM15031 Ambler River 67.1600000000000156.391666666667Schist K-Ar Muscovite 109.000 .000000000000000Quartz-muscovite-schist, (76002) Turner et al, 1978, 1979a, Mayfield et al, 1983 67 9.600000000000000N15623.500000000000000W3920 75AWM1502 Ambler River 67.1666666666667156.383333333333Schist K-Ar Actinolite 398.000 .000000000000000(75141) Actinolite-schist, age recalculated with 1976 constants Turner et al, 1978, 1979a, Mayfield et al, 1983 67 10.000000000000000N15623.000000000000000W3921 75AWM15353 Ambler River 67.1733333333333156.380000000000Schist K-Ar Biotite 116.000 .000000000000000Feldspar-schist, (75077) Turner et al, 1978, 1979a, Mayfield et al, 1983 67 10.400000000000000N15622.800000000000000W3922 75AWM15353 Ambler River 67.1733333333333156.380000000000Schist K-Ar Muscovite 120.000 .000000000000000Feldspar-schist, (75046) Turner et al, 1978, 1979a, Mayfield et al, 1983 67 10.400000000000000N15622.800000000000000W3923 73ATr105.4 Ambler River 67.1783333333333156.376666666667Schist K-Ar Biotite 105.000 .000000000000000Biotite-muscovite-feldspar-schist (74091) Turner et al, 1978, 1979a, Mayfield et al, 1983 67 10.700000000000000N15622.600000000000000W3924 73ATr105.4 Ambler River 67.1783333333333156.376666666667Schist K-Ar Muscovite 115.000 .000000000000000Biotite-muscovite-feldspar-schist, (75079) Turner et al, 1978, 1979a, Mayfield et al, 1983 67 10.700000000000000N15622.600000000000000W3925 75AWM1500 Ambler River 67.1833333333333156.376666666667Schist K-Ar Muscovite 163.000 .000000000000000Feldspar-schist, (76010) Turner et al, 1978, 1979a, Mayfield et al, 1983 67 11.000000000000000N15622.600000000000000W3926 75AWM15011 Ambler River 67.1833333333333156.376666666667Schist K-Ar Muscovite 120.000 .00000000000000075AWM1501.1, feldspar-schist Turner et al, 1978, 1979a, Mayfield et al, 1983 67 11.000000000000000N15622.600000000000000W3927 73RR45C Ambler River 67.2000000000000156.710000000000Schist K-Ar Actinolite 163.000 .000000000000000Actinolite-schist, (76077) Turner et al, 1978, 1979a, Mayfield et al, 1983 67 12.000000000000000N15642.600000000000000W3928 75AWM17455 Ambler River 67.2033333333333156.370000000000SKARN K-Ar Actinolite 246.000 .000000000000000Actinolite-skarn, (75048) Turner et al, 1978, 1979a, Mayfield et al, 1983 67 12.200000000000000N15622.200000000000000W3929 AR-ISO1 Ambler River 67.2033333333333156.775000000000Schist K-Ar IC 1290.00 .000000000000000Glaucophane, samples A-1, A-2, A-3, C-2 Hartman, 1974, Grybeck et al, 1977 67 12.200000000000000N15646.500000000000000W3930 AR-ISO2 Ambler River 67.2033333333333156.775000000000Schist K-Ar IC 213.000 .000000000000000Garnet-glaucophane-schist ,samples A-2,A-3 and 72F10ARGII (Survey Pass quad) Hartman, 1974, Grybeck et al, 1977 67 12.200000000000000N15646.500000000000000W3931 C-2 Ambler River 67.2083333333333156.658333333333Schist K-Ar GP 1341.00 .000000000000000Approx. loc., garnet-glaucophane-schist (72125), 1976 constants, excess Ar Hartman,1974, Grybeck et al,1977, Turner et al,1978,1979a, Mayfield et al, 1983 67 12.500000000000000N15639.500000000000000W3932 73RR10-1C Ambler River 67.2150000000000156.691666666667Schist K-Ar Muscovite 131.000 .000000000000000Quartz-muscovite-schist, (75083) Turner et al, 1978, 1979a, Mayfield et al, 1983 67 12.900000000000000N15641.500000000000000W3933 73RR7G Ambler River 67.2200000000000156.693333333333Schist K-Ar GP 597.000 .000000000000000Glaucophane-quartz-muscovite-schist, (75001) Turner et al, 1978, 1979a, Mayfield et al, 1983 67 13.200000000000000N15641.600000000000000W3934 73RR7G Ambler River 67.2200000000000156.693333333333Schist K-Ar Muscovite 128.000 .000000000000000Glaucophane-quartz-muscovite-schist, (75002) Turner et al, 1978, 1979a, Mayfield et al, 1983 67 13.200000000000000N15641.600000000000000W3935 72E56B Ambler River 67.2233333333333156.641666666667Schist K-Ar Muscovite 184.000 .000000000000000Biotite-muscovite-schist, (73057) Turner et al, 1978, 1979a, Mayfield et al, 1983 67 13.400000000000000N15638.500000000000000W3936 73RR6EF Ambler River 67.2233333333333156.696666666667Schist K-Ar Biotite 105.000 .000000000000000Mean of 2 determinations, (75129), (75126) Turner et al, 1978, 1979a, Mayfield et al, 1983 67 13.400000000000000N15641.800000000000000W3937 73RR6EF Ambler River 67.2233333333333156.696666666667Schist K-Ar Muscovite 115.000 .000000000000000Biotite-feldspar-quartz-muscovite-schist, (75039) Turner et al, 1978, 1979a, Mayfield et al, 1983 67 13.400000000000000N15641.800000000000000W3938 73RR18F Ambler River 67.2250000000000156.725000000000Schist K-Ar Biotite 132.000 .000000000000000Biotite-quartz-muscovite-schist, (74183) Turner et al, 1978, 1979a, Mayfield et al, 1983, Armstrong et al, 1986 67 13.500000000000000N15643.500000000000000W3939 73RR18F Ambler River 67.2250000000000156.725000000000Schist K-Ar Muscovite 130.000 .000000000000000Biotite-quartz-muscovite-schist, (75052) Turner et al, 1978, 1979a, Mayfield et al, 1983, Armstrong et al, 1986 67 13.500000000000000N15643.500000000000000W3940 A-1 Ambler River 67.2250000000000156.733333333333Schist K-Ar GP 2531.00 .000000000000000Approx. loc.,mean of 3 determinations, possible inherited Ar, 1976 constants Hartman,1974; Grybeck et al,1977; Turner et al,1978; 1979a; Mayfield et al, 1983 67 13.500000000000000N15644.000000000000000W3941 A-1CNM Ambler River 67.2250000000000156.733333333333Schist K-Ar PA 240.000 .000000000000000Approx. loc.,garnet-glaucophane-schist, (72146), add'l ref. Mayfield et al, 1983 Hartman, 1974, Grybeck et al, 1977, Pessel et al, 1973, Turner et al,1978,1979a 67 13.500000000000000N15644.000000000000000W3942 A-3 Ambler River 67.2250000000000156.733333333333Schist K-Ar GP 1436.00 .000000000000000Jadeite-garnet-glaucophane-schist (72129), 1976 constants, excess Ar Hartman,1974, Grybeck et al,1977, Turner et al,1978,1979a, Mayfield et al, 1983 67 13.500000000000000N15644.000000000000000W3943 A-3 Ambler River 67.2250000000000156.733333333333Schist K-Ar PA 221.700 .000000000000000Jadeite-garnet-glaucophane-schist (72163), age recalc. with 1976 constants Hartman,1974, Grybeck et al,1977, Pessel et al,1973, Turner et al,1978,1979a 67 13.500000000000000N15644.000000000000000W3944 A-2 Ambler River 67.2250000000000156.775000000000Schist K-Ar GP 1279.00 .000000000000000Excess Ar Hartman,1974, Grybeck et al,1977, Turner et al,1978,1979a, Mayfield et al,1983 67 13.500000000000000N15646.500000000000000W3945 A-2 Ambler River 67.2250000000000156.775000000000Schist K-Ar PA 218.300 .000000000000000Garnet-glaucophane-schist, (72162), add'l ref. Mayfield et al, 1983 Hartman,1974, Grybeck et al,1977, Pessel et al,1973, Turner et al,1978,1979a 67 13.500000000000000N15646.500000000000000W3946 72Pe92 Ambler River 67.2266666666667156.116666666667GNS K-Ar Biotite 88.8000 .000000000000000Mean of 2 determinations, (73060), (74002) Turner et al, 1978, 1979a, Mayfield et al, 1983 67 13.600000000000000N156 7.000000000000000W3947 72Pe92 Ambler River 67.2266666666667156.116666666667GNS K-Ar Muscovite 116.000 .000000000000000(73059) Turner et al, 1978, 1979a, Mayfield et al, 1983, Armstrong et al, 1986 67 13.600000000000000N156 7.000000000000000W3948 72Pe92 Ambler River 67.2266666666667156.116666666667GNS R Muscovite 99.0000 .000000000000000Biotite muscovite augen gneiss Armstrong et al, 1986 67 13.600000000000000N156 7.000000000000000W3949 73RR31C Ambler River 67.2300000000000156.765000000000Schist K-Ar GP 566.000 .000000000000000Impure glaucophane, minimum age, glaucophane schist (75028), 1976 constants Turner et al, 1978, 1979a, Mayfield et al, 1983 67 13.800000000000000N15645.900000000000000W3950 73RR54 Ambler River 67.2450000000000156.683333333333Schist K-Ar GP 1690.00 .000000000000000Inherited argon, mean of 2 determinations (75020),(75023), 1976 contants Turner et al, 1978, 1979a, Mayfield et al, 1983 67 14.700000000000000N15641.000000000000000W3951 73RR52 Ambler River 67.2500000000000156.676666666667Schist K-Ar GP 636.000 .000000000000000Mean of 2 determinations (75019),(75025), age recalc. with 1976 constants Turner et al, 1978, 1979a, Mayfield et al, 1983 67 15.000000000000000N15640.600000000000000W3952 74AWM309 Ambler River 67.3016666666667156.700000000000Schist K-Ar Actinolite 437.000 .000000000000000Actinolite-quartz-chlorite-schist (75058), age recalc. with 1976 constants Turner et al, 1978, 1979a, Mayfield et al, 1983 67 18.100000000000000N15642.000000000000000W3953 73RR75-3 Ambler River 67.3066666666667156.700000000000Schist K-Ar Actinolite 352.000 .000000000000000Impure actinolite, minimum age, actinolite-schist (76197) Turner et al, 1978, 1979a, Mayfield et al, 1983 67 18.400000000000000N15642.000000000000000W3954 72E222 Ambler River 67.3183333333333156.130000000000GNS K-Ar Biotite 95.9000 .000000000000000(73058) Turner et al, 1978, 1979a, Mayfield et al, 1983, Armstrong et al,1986 67 19.100000000000000N156 7.800000000000000W3955 72E222 Ambler River 67.3183333333333156.130000000000GNS K-Ar Muscovite 100.300 .000000000000000(73055) Turner et al, 1978, 1979a, Mayfield et al, 1983, Armstrong et al, 1986 67 19.100000000000000N156 7.800000000000000W3956 72E222 Ambler River 67.3183333333333156.130000000000GNS R IC 96.0000 .000000000000000Coarse flaser granitic gneiss, biotite and muscovite Armstrong et al, 1986 67 19.100000000000000N156 7.800000000000000W3957 72E100R Ambler River 67.3383333333333157.018333333333Schist K-Ar Muscovite 129.000 .000000000000000Quartz-muscovite-schist (73056) Turner et al, 1978, 1979a, Mayfield et al, 1983, Armstrong et al, 1986 67 20.300000000000000N157 1.100000000000000W3958 60ATr134 Ambler River 67.4000000000000156.333333333333Granodiorite K-Ar Muscovite 101.300 2.200000000000000Meta-granite, add'l ref. Mayfield et al, 1983 Pessel et al, 1973, Pessel and Brosge, 1977, Turner et al, 1978, 1979a 67 24.000000000000000N15620.000000000000000W3959 75ATr142.2 Ambler River 67.5716666666667156.195000000000Amphibolite K-Ar Hornblende 391.000 .000000000000000 Mayfield et al, 1983 67 34.300000000000000N15611.700000000000000W3960 76ATr75b Ambler River 67.7350000000000157.648333333333OTHER K-Ar Muscovite 434.000 .000000000000000Possible minimum age of detrital muscovite in feldspathic wacke Mayfield et al, 1983 67 44.100000000000000N15738.900000000000000W3961 74ABe222F Baird Mountains67.0133333333333160.083333333333Schist K-Ar PP 100.100 .000000000000000(75091), age recalculated with 1976 constants Turner et al, 1978, 1979a 67 .800000000000000N160 5.000000000000000W3962 74Pe2B Baird Mountains67.0383333333333160.166666666667GNS K-Ar Biotite 95.9000 .000000000000000Biotite-muscovite-gneiss (75115), age recalculated with 1976 constants Turner et al, 1978, 1979a 67 2.300000000000000N16010.000000000000000W3963 74Pe2B Baird Mountains67.0383333333333160.166666666667GNS K-Ar Muscovite 107.000 .000000000000000Biotite-muscovite-gneiss (75124), age recalc. with 1976 constants Turner et al, 1978, 1979a, Armstrong et al, 1986 67 2.300000000000000N16010.000000000000000W3964 74ATr150.3 Baird Mountains67.0600000000000160.150000000000Schist K-Ar Biotite 113.000 .000000000000000Biotite-muscovite-feldspar-schist(75117), age recalc. with 1976 constants Turner et al, 1978, 1979a 67 3.600000000000000N160 9.000000000000000W3965 74ATr150.3 Baird Mountains67.0600000000000160.150000000000Schist K-Ar Muscovite 114.000 .000000000000000Age recalculated with 1976 constants Turner et al, 1978, 1979a 67 3.600000000000000N160 9.000000000000000W3966 66APa129 Baird Mountains67.1250000000000159.758333333333TUFF K-Ar Biotite 85.4000 .000000000000000Age recalculated with 1976 constants Patton and Miller,1968,Grybeck et al,1977,Turner et al,1978,1979a,Patton,1973 67 7.500000000000000N15945.500000000000000W3967 66ATr39 Baird Mountains67.1700000000000160.405000000000Schist K-Ar Muscovite 125.000 .000000000000000Age recalculated with 1976 constants Grybeck et al, 1977, Mayfield, 1975, Turner et al, 1978, 1979a 67 10.200000000000000N16024.300000000000000W3968 74AF144-3 Baird Mountains67.1716666666667160.108333333333Schist K-Ar Actinolite 632.000 .000000000000000Amphibole-schist (74125), 1976 constants, possible excess Ar Turner et al, 1978, 1979a, Armstrong et al, 1986 67 10.300000000000000N160 6.500000000000000W3969 74Pe121 Baird Mountains67.2666666666667160.230000000000Schist K-Ar Muscovite 121.000 .000000000000000Quartz-muscovite-schist (75090), age recalculated with 1976 constants Turner et al, 1978, 1979a 67 16.000000000000000N16013.800000000000000W3970 74ATr129.7 Baird Mountains67.2950000000000160.216666666667Greenschist K-Ar Actinolite 660.000 .000000000000000(75082), 1976 constants, possible excess Ar Turner et al, 1978, 1979a, Armstrong et al, 1986 67 17.700000000000000N16013.000000000000000W3971 74AF155-13 Baird Mountains67.4116666666667160.291666666667Schist K-Ar GP 767.000 .000000000000000Quartz-paragonite-glaucophane-schist,(75017),(74121),1976 constants, possible excess Ar Turner et al, 1978, 1979a, Armstrong et al, 1986 67 24.700000000000000N16017.500000000000000W3972 74AF155-13 Baird Mountains67.4116666666667160.291666666667Schist K-Ar PA 199.000 .000000000000000Quartz-paragonite-glaucophane-schist (74129),(75044),1976 constants Turner et al, 1978, 1979a 67 24.700000000000000N16017.500000000000000W3973 74ABe21B Baird Mountains67.4600000000000159.691666666667Greenschist K-Ar Actinolite 320.000 .000000000000000(75097), age recalculated with 1976 constants Turner et al, 1978, 1979a 67 27.600000000000000N15941.500000000000000W3974 81ATr183f Baird Mountains67.6333333333333159.571666666667Marble K-Ar Mica 515.000 .000000000000000Teledyne Isotopes, geol. suspect, same unit as 81ATr 186f, micaceous marble Ellersieck, per. comm.,1984 67 38.000000000000000N15934.300000000000000W3975 81ATr187f Baird Mountains67.6500000000000159.580000000000Metabasite K-Ar Amphibole 188.000 .000000000000000Geologically suspect, metabasite dike in marble, replicate. Ellersieck, pers. comm., 1984 67 39.000000000000000N15934.800000000000000W3976 81ATr187f Baird Mountains67.6500000000000159.580000000000Metabasite K-Ar Amphibole 172.000 .000000000000000Geologically suspect, metabasite dike in marble, replicate. Ellersieck, pers. comm., 1984 67 39.000000000000000N15934.800000000000000W3977 74AF145-1 Baird Mountains67.6500000000000160.153333333333Schist K-Ar Muscovite 646.000 .000000000000000Muscovite-schist (74122), metasediment, mean of 2 determinations Turner et al, 1978, 1979a, Mayfield et al, 1982, Armstrong et al, 1986, Till, 1989 67 39.000000000000000N160 9.200000000000000W3978 74AF145-5 Baird Mountains67.6500000000000160.153333333333Schist K-Ar Hornblende 729.000 .000000000000000Amphibole-schist (74124), metabasite Turner et al, 1978, 1979a, Mayfield et al, 1982, Turner et al, 1978, Armstrong et al, 1986, Till, 1989 67 39.000000000000000N160 9.200000000000000W3979 74AF145-1 Baird Mountains67.6500000000000160.153333333333Schist R OT 1026.00 .000000000000000Whole rock-muscovite pair Armstrong et al, 1986 67 39.000000000000000N160 9.200000000000000W3980 74AF145 Baird Mountains67.6500000000000160.153333333333Schist R IC 686.000 .000000000000000Meta sedimentary musc. schist (74AF145-1) and amphibole schist (74AF145-5) Armstrong et al, 1986 67 39.000000000000000N160 9.200000000000000W3981 74AF145-1 Baird Mountains67.6500000000000160.153333333333Schist R Whole-rock 645.000 .000000000000000Model date assuming Sr=0.705 Armstrong et al, 1986, Till, 1989 67 39.000000000000000N160 9.200000000000000W3982 74AF145-1 Baird Mountains67.6500000000000160.153333333333Schist R Mica 770.000 .000000000000000Model date assuming Sr=0.705 Armstrong et al, 1986, Till, 1989 67 39.000000000000000N160 9.200000000000000W3983 81ATr186f Baird Mountains67.6550000000000159.613333333333Marble K-Ar 134.000 .000000000000000Teledyne Isotopes, geol. suspect, same unit as 81ATr183f, micaceous marble Ellersieck, pers. comm., 1984 67 39.300000000000000N15936.800000000000000W3984 76Md276EX Baird Mountains67.6766666666667159.206666666667Amphibolite K-Ar Hornblende 595.000 .000000000000000Garnet amphibolite, metabasite, Hub Mtn. Mayfield et al, 1982, Armstrong et al, 1986, Till, 1989 67 40.600000000000000N15912.400000000000000W3985 78Md121 Baird Mountains67.6850000000000159.160000000000Schist K-Ar Muscovite 594.000 .000000000000000Quartz-mica schist, metasediment Mayfield et al, 1982, Armstrong et al, 1986, Till, 1989 67 41.100000000000000N159 9.600000000000000W3986 76Md250HX Baird Mountains67.7050000000000159.173333333333Diorite K-Ar Hornblende 548.000 .000000000000000Metamorphosed rock, minimum age, mean of 2 determinations Mayfield et al, 1982, Armstrong et al, 1986, Till, 1989 67 42.300000000000000N15910.400000000000000W3987 84DN156a 2492Chandalar 67.0083333333333149.780000000000Granodiorite K-Ar Biotite 107.000 .000000000000000Hodzana pluton Blum et al, 1987 67 .500000000000000N14946.800000000000000W3988 84DN156a 2492Chandalar 67.0083333333333149.780000000000Granodiorite K-Ar Hornblende 108.000 .000000000000000Hodzana pluton Blum et al, 1987 67 .500000000000000N14946.800000000000000W3989 84DN155b 2492Chandalar 67.0116666666667149.786666666667Granite K-Ar Biotite 105.000 .000000000000000Hodzana pluton Blum et al, 1987 67 .700000000000000N14947.200000000000000W3990 84DN155b 2492Chandalar 67.0116666666667149.786666666667Granite K-Ar Hornblende 106.000 .000000000000000Hodzana pluton Blum et al, 1987 67 .700000000000000N14947.200000000000000W3991 84DN157 2492Chandalar 67.0166666666667149.688333333333Monzodiorite K-Ar Biotite 107.000 .000000000000000Hodzana pluton Blum et al, 1987 67 1.000000000000000N14941.300000000000000W3992 84DN157 2492Chandalar 67.0166666666667149.688333333333Monzodiorite K-Ar Hornblende 103.000 .000000000000000Hodzana pluton Blum et al, 1987 67 1.000000000000000N14941.300000000000000W3993 240B 2492Chandalar 67.0166666666667149.825000000000Granodiorite K-Ar Biotite 104.000 .000000000000000Hodzana pluton, age recalculated with 1976 constants Brosge' and Reiser, 1964, Grybeck et al, 1977, Sable, 1977 67 1.000000000000000N14949.500000000000000W3994 240Z 2492Chandalar 67.0166666666667149.825000000000Granodiorite A Zircon 140.000 .000000000000000 Brosge' and Reiser, 1964, Grybeck et al, 1977, Sable, 1977 67 1.000000000000000N14949.500000000000000W3995 84DN160 2492Chandalar 67.0400000000000149.815000000000Monzodiorite K-Ar Biotite 104.000 .000000000000000Hodzana pluton Blum et al, 1987 67 2.400000000000000N14948.900000000000000W3996 84DN160 2492Chandalar 67.0400000000000149.815000000000Monzodiorite K-Ar Hornblende 110.000 .000000000000000Hodzana pluton Blum et al, 1987 67 2.400000000000000N14948.900000000000000W3997 239B Chandalar 67.5833333333333148.633333333333Schist K-Ar Biotite 106.000 .000000000000000Chandalar pluton, age recalculated with 1976 constants Brosge' and Reiser, 1964, Grybeck et al, 1977, Sable, 1977 67 35.000000000000000N14838.000000000000000W3998 239M Chandalar 67.5833333333333148.633333333333Schist K-Ar Muscovite 102.000 .000000000000000Chandalar pluton, age recalculated with 1976 constants Brosge' and Reiser, 1964, Grybeck et al, 1977, Sable, 1977 67 35.000000000000000N14838.000000000000000W3999 241B Chandalar 67.6083333333333148.616666666667Granite K-Ar Biotite 128.000 .000000000000000Age recalculated with 1976 constants Brosge' and Reiser, 1964, Grybeck et al, 1977, Sable, 1977 67 36.500000000000000N14837.000000000000000W4000 241Z Chandalar 67.6083333333333148.616666666667Granite A Zircon 380.000 .000000000000000 Brosge' and Reiser, 1964, Grybeck et al, 1977, Sable, 1977, Dillon, 1985 67 36.500000000000000N14837.000000000000000W4001 Chandalar1 Chandalar 67.6333333333333149.333333333333Granodiorite K-Ar Hornblende 297.000 .000000000000000Conflicting ages, same sample Grybeck et al, 1977 67 38.000000000000000N14920.000000000000000W4002 Chandalar1 Chandalar 67.6333333333333149.333333333333Granodiorite K-Ar Hornblende 495.000 .000000000000000Conflicting ages, same sample Grybeck et al, 1977 67 38.000000000000000N14920.000000000000000W4003 49ATr511 Chandler Lake 68.4700000000000152.750000000000Diabase K-Ar Plagioclase186.20024.000000000000000Corrected with new constants Grybeck et al, 1977 68 28.200000000000000N15245.000000000000000W4004 63ARr151 Christian 67.4666666666667145.516666666667Gabbro K-Ar Hornblende 172.000 .000000000000000 Reiser et al, 1965, Grybeck et al, 1977, Patton et al, 1977 67 28.000000000000000N14531.000000000000000W4005 63ABe202 Christian 67.5000000000000145.750000000000Diorite K-Ar Plagioclase159.000 .000000000000000 Reiser et al, 1965, Grybeck et al, 1977, Patton et al, 1977 67 30.000000000000000N14545.000000000000000W4006 77AMs12 Survey Pass 67.0466666666667155.021666666667Schist R Whole-rock 220.000 .000000000000000Metarhyolite Nelson and Grybeck, 1980 67 2.800000000000000N155 1.300000000000000W4007 77AMs12A Survey Pass 67.0516666666667155.021666666667Schist R Whole-rock 215.000 .000000000000000Metarhyolite Nelson and Grybeck, 1980 67 3.100000000000000N155 1.300000000000000W4008 77AMs13 Survey Pass 67.0516666666667155.021666666667Schist R Whole-rock 207.000 .000000000000000Metarhyolite Nelson and Grybeck, 1980 67 3.100000000000000N155 1.300000000000000W4009 SUR3 Survey Pass 67.0516666666667155.021666666667Schist R IC 214.000 .000000000000000Samples 77AMs11B, 12A, 13, and 12, metarhyolite Nelson and Grybeck, 1980 67 3.100000000000000N155 1.300000000000000W4010 77AMs11B Survey Pass 67.0616666666667155.021666666667Schist R Whole-rock 214.000 .000000000000000 Nelson and Grybeck, 1980 67 3.700000000000000N155 1.300000000000000W4011 72F10ARGII Survey Pass 67.0833333333333155.916666666667Schist K-Ar Actinolite 293.700 .000000000000000Mean of 2 determinations, 1976 constants, Nelson and Grybeck, 1980 Hartman,1974, Pessel et al,1973, Grybeck et al,1977, Turner et al,1978,1979a 67 5.000000000000000N15555.000000000000000W4012 72F10ARGII Survey Pass 67.0833333333333155.916666666667Schist K-Ar IC 213.000 .000000000000000Paragonite-actinolite, isochron with samples A-1, A-2, A-3(Ambler River quad.) Hartman, 1974, Grybeck et al, 1977 67 5.000000000000000N15555.000000000000000W4013 73B33 Survey Pass 67.0866666666667155.020000000000Schist R OT 112.000 .000000000000000Whole rock-mineral (MU) pair, muscovite feldspar schist Armstrong et al, 1986 67 5.200000000000000N155 1.200000000000000W4014 73B33 Survey Pass 67.0883333333333155.016666666667Schist K-Ar Muscovite 112.000 .000000000000000Muscovite-feldspar-schist (74085), age recalc. with 1976 constants Turner et al, 1978, 1979a, Nelson and Grybeck, 1980, Armstrong et al, 1986 67 5.300000000000000N155 1.000000000000000W4015 75AWM3 Survey Pass 67.1033333333333155.213333333333GNS K-Ar Biotite 103.000 .000000000000000Biotite-muscovite-feldspar-gneiss (76028), age recalc. with 1976 constants Turner et al, 1978, 1979a, Nelson and Grybeck, 1980 67 6.200000000000000N15512.800000000000000W4016 75AWM3 Survey Pass 67.1033333333333155.213333333333GNS K-Ar Muscovite 118.000 .000000000000000Biotite-muscovite-feldspar-gneiss (76028), age recalc. with 1976 constants Turner et al, 1978, 1979a, Nelson and Grybeck, 1980 67 6.200000000000000N15512.800000000000000W4017 73ATr15.2 Survey Pass 67.1033333333333155.316666666667Schist R IC 103.000 .000000000000000Biotite and muscovite Armstrong et al, 1986 67 6.200000000000000N15519.000000000000000W4018 73ATr15.2 Survey Pass 67.1050000000000155.300000000000Schist K-Ar Biotite 105.000 .000000000000000Biotite-muscovite-feldspar-schist (74182), age recalc. with 1976 constants Turner et al, 1978, 1979a, Nelson and Grybeck, 1980, Armstrong et al, 1986 67 6.300000000000000N15518.000000000000000W4019 73ATr15.2 Survey Pass 67.1050000000000155.300000000000Schist K-Ar Muscovite 118.000 .000000000000000Biotite-muscovite-feldspar-schist (75051), age recalc. with 1976 constants Turner et al, 1978, 1979, Nelson and Grybeck, 1980, Armstrong et al, 1986 67 6.300000000000000N15518.000000000000000W4020 73ATr45.2 Survey Pass 67.1116666666667155.400000000000Greenschist K-Ar Actinolite 173.000 .000000000000000(74179), mean of 2 determinations, 1976 constants Turner et al, 1978, 1979a, Nelson and Grybeck, 1980 67 6.700000000000000N15524.000000000000000W4021 73ATr45.2 Survey Pass 67.1116666666667155.400000000000Greenschist K-Ar Muscovite 117.000 .000000000000000Impure muscovite, minimum age (75068), age recalc. with 1976 constants Turner et al, 1978, 1979a, Nelson and Grybeck, 1980 67 6.700000000000000N15524.000000000000000W4022 73G64 Survey Pass 67.1166666666667155.410000000000Schist K-Ar TR 205.800 .000000000000000Recalc. with 1976 constants Turner et al, 1979a 67 7.000000000000000N15524.600000000000000W4023 73ATr20.2 Survey Pass 67.1383333333333153.933333333333Schist R OT 60.0000 .000000000000000Whole rock-mineral (MU) pair, quartz muscovite schist Armstrong et al, 1986 67 8.300000000000000N15356.000000000000000W4024 73ATr20.2 Survey Pass 67.1416666666667153.938333333333Schist K-Ar Muscovite 115.000 .000000000000000Quartz-muscovite-schist (74084), age recalc. with 1976 constants Turner et al, 1978, 1979a, Nelson and Grybeck, 1980, Armstrong et al, 1986 67 8.500000000000000N15356.300000000000000W4025 73ABe58 Survey Pass 67.1683333333333155.211666666667Schist K-Ar Muscovite 109.000 .000000000000000Muscovite-feldspar-schist (74137), age recalc. with 1976 constants Turner et al, 1978, 1979a, Nelson and Grybeck, 1980 67 10.100000000000000N15512.700000000000000W4026 73Pe32 Survey Pass 67.1800000000000153.983333333333Schist K-Ar Muscovite 139.000 .000000000000000Calc-muscovite-schist (74086), age recalc. with 1976 constants Turner et al, 1978, 1979a, Nelson and Grybeck, 1980, Armstrong et al, 1986 67 10.800000000000000N15359.000000000000000W4027 73ABe10b Survey Pass 67.2233333333333153.693333333333Schist K-Ar Biotite 100.200 .000000000000000(75073), 1976 constants, amphibolite schist Turner et al, 1978, 1979a, Nelson and Grybeck, 1980 67 13.400000000000000N15341.600000000000000W4028 73ABe10b Survey Pass 67.2233333333333153.693333333333Schist K-Ar Hornblende 116.000 .000000000000000(74171), 1976 constants, amphibolite schist Turner et al, 1978, 1979a, Nelson and Grybeck, 1980 67 13.400000000000000N15341.600000000000000W4029 72B211 Survey Pass 67.2950000000000155.941666666667Schist K-Ar Biotite 98.8000 .0000000000000001976 constants,Turner et al,1978,1979,Nelson and Grybeck,1980 Grybeck et al,1977,Brosge and Pessel,1977,Pessel et al,1973,Hartman,1974 67 17.700000000000000N15556.500000000000000W4030 72C211 Survey Pass 67.3083333333333155.931666666667Schist K-Ar Biotite 98.8000 .000000000000000Recalc. with 1976 constants, (73011) Turner et al, 1979a 67 18.500000000000000N15555.900000000000000W4031 71F17 Survey Pass 67.3233333333333154.366666666667GNS K-Ar Biotite 92.2000 .000000000000000Biotite-muscovite-gneiss (72083), age recalc. with 1976 constants Turner et al, 1978, 1979a, Nelson and Grybeck, 1980 67 19.400000000000000N15422.000000000000000W4032 77AMs30A Survey Pass 67.3383333333333154.006666666667SKARN K-Ar Biotite 95.0000 .000000000000000 Silberman et al, 1979b, Nelson and Grybeck, 1980 67 20.300000000000000N154 .400000000000000W4033 77AMs30A Survey Pass 67.3383333333333154.006666666667SKARN K-Ar Hornblende 109.000 .000000000000000 Silberman et al, 1979b, Nelson and Grybeck, 1980 67 20.300000000000000N154 .400000000000000W4034 77AMs30A Survey Pass 67.3383333333333154.006666666667SKARN K-Ar Muscovite 94.0000 .000000000000000 Nelson and Grybeck, 1980 67 20.300000000000000N154 .400000000000000W4035 77AMs19 Survey Pass 67.3466666666667154.926666666667GNS R Whole-rock 287.000 .000000000000000Orthogneiss Nelson and Grybeck, 1980 67 20.800000000000000N15455.600000000000000W4036 77AMs6 Survey Pass 67.3666666666667154.188333333333GNS R Whole-rock 372.000 .000000000000000Arrigetch Peaks, orthogneiss Nelson and Grybeck, 1980 67 22.000000000000000N15411.300000000000000W4037 62ARr192 Survey Pass 67.3716666666667154.183333333333Granite A Zircon 280.000 .000000000000000Foliated, porphyritic biotite granite, Arrigetch Peaks Marvin and Dobson, 1979, Nelson and Grybeck, 1980 67 22.300000000000000N15411.000000000000000W4038 62ARr192 Survey Pass 67.3716666666667154.183333333333Granite K-Ar Biotite 88.0000 .000000000000000Sable,1977,Turner et al,1978,79a,Marvin and Dobson,1979,Nelson and Grybeck,1980 Brosge and Reiser, 1971, Brosge' and Pessel, 1977, Grybeck et al, 1977 67 22.300000000000000N15411.000000000000000W4039 SUR1 Survey Pass 67.3833333333333154.166666666667Granite R IC 360.000 .0000000000000006 samples from Arrigetch Peaks and Mt. Igipak plutons U.S.G.S., 1979b, Silberman et al, 1979b, Nelson and Grybeck, 1980 67 23.000000000000000N15410.000000000000000W4040 62ABe264 Survey Pass 67.3916666666667154.025000000000Quartz monzonite A Zircon 240.000 .000000000000000Faintly foliated porphyritic biotite quartz monzonite Marvin and Dobson, 1979, Nelson and Grybeck, 1980 67 23.500000000000000N154 1.500000000000000W4041 62ABe264 Survey Pass 67.3916666666667154.025000000000Quartz monzonite K-Ar Biotite 90.0000 .000000000000000Arrigetch Peaks,Grybeck et al,1977,Marvin and Dobson,1979,Nelson and Gry.,1980 Brosge and Reiser,1971, Brosge and Pessel, 1977,Turner et al, 1978, 1979a, Sable,1977 67 23.500000000000000N154 1.500000000000000W4042 62ABe264 Survey Pass 67.3916666666667154.025000000000Quartz monzonite K-Ar Muscovite 94.0000 .000000000000000Arrigetch Peaks,Grybeck et al,1977,Marvin and Dobson,1979,Nelson and Gry.,1980 Brosge and Reis.,1971,Brosge and Pes.,1977,Turner et al,1978,1979a,Sable, 1977 67 23.500000000000000N154 1.500000000000000W4043 77AMs29 Survey Pass 67.4016666666667153.961666666667GNS R Whole-rock 350.000 .000000000000000Orthogneiss Nelson and Grybeck, 1980 67 24.100000000000000N15357.700000000000000W4044 77AMs28 Survey Pass 67.4100000000000154.145000000000GNS R Whole-rock 326.000 .000000000000000Arrigetch Peaks, orthogneiss Nelson and Grybeck, 1980 67 24.600000000000000N154 8.700000000000000W4045 SUR2 Survey Pass 67.4100000000000154.145000000000GNS R IC 373.000 .000000000000000Mt. Igikpak and Arrigetch Peaks plutons, samples 77AMs6,19,21,22,28 and 29 Silberman et al, 1979b, Nelson and Grybeck, 1980, Dillon, 1985 67 24.600000000000000N154 8.700000000000000W4046 77AMs22 Survey Pass 67.4266666666667154.578333333333GNS R Whole-rock 428.000 .000000000000000Orthogneiss Nelson and Grybeck, 1980 67 25.600000000000000N15434.700000000000000W4047 77AMs21 Survey Pass 67.4600000000000154.701666666667GNS R Whole-rock 450.000 .000000000000000Orthogneiss Nelson and Grybeck, 1980 67 27.600000000000000N15442.100000000000000W4048 74ARr11 Wiseman 67.8383333333333150.293333333333Mafic rock K-Ar Hornblende 395.000 .000000000000000Age recalculated with 1976 constants Dutro et al, 1976, U.S.G.S., 1976, Grybeck et al, 1977 67 50.300000000000000N15017.600000000000000W4049 58ARr8a Wiseman 67.8550000000000150.850000000000Mafic rock K-Ar Hornblende 381.000 .000000000000000Mafic dike rock, 1976 constants Dutro et al,1976, Grybeck et al,1977, Brosge and Reiser, 1971, U.S.G.S.,1965a, 1976, Sable, 1977, Repetski et al, 1987, Moore, 198767 51.300000000000000N15051.000000000000000W4050 59ABe478 Wiseman 67.9116666666667150.543333333333Mafic rock K-Ar Hornblende 479.000 .000000000000000Mafic dike rock, age recalc. with 1976 constants Dutro et al,1976, U.S.G.S., 1976, Grybeck et al, 1977, Repetski et al, 1987, Moore, 1987 67 54.700000000000000N15032.600000000000000W4051 59ABe478 Wiseman 67.9116666666667150.543333333333Mafic rock K-Ar Hornblende 520.000 .00000000000000040Ar/39Ar analysis Dutro et al, 1976, U.S.G.S., 1976, Grybeck et al, 1977 67 54.700000000000000N15032.600000000000000W4052 65ALe 1 6720Wiseman 67.9116666666667150.543333333333Mafic volcanic rock40/39 Hornblende 384.00012.00000000000000040Ar/39Ar analysis Dutro et al, 1976, U.S.G.S., 1976, Grybeck et al, 1977; Till and others, in press 67 54.700000000000000N15032.600000000000000W4053 65ALe 1 6720Wiseman 67.9116666666667150.543333333333Mafic volcanic rockK-Ar Hornblende 388.000 .000000000000000Mafic dike rock, K2O by isotope dilution, age recalc. with 1976 constants Dutro et al, 1976, U.S.G.S., 1976, Grybeck et al, 1977 67 54.700000000000000N15032.600000000000000W4054 65ALe 6 6720Wiseman 67.9133333333333150.401666666667Mafic volcanic rock40/39 Hornblende 478.00020.00000000000000040Ar/39Ar analysis Dutro et al, 1976, U.S.G.S., 1976, Grybeck et al, 1977; Till and others, in press 67 54.800000000000000N15024.100000000000000W4055 65ALe 6 6720Wiseman 67.9133333333333150.401666666667Mafic rock K-Ar Hornblende 478.000 .000000000000000Age recalculated with 1976 constants Dutro et al, 1976, U.S.G.S., 1976, Grybeck et al, 1977 67 54.800000000000000N15024.100000000000000W4056 65ALe 6a 6720Wiseman 67.9133333333333150.401666666667Mafic volcanic rock40/39 Hornblende 465.00014.00000000000000040Ar/39Ar analysis Dutro et al, 1976, U.S.G.S., 1976, Grybeck et al, 1977 67 54.800000000000000N15024.100000000000000W4057 APK90 111 7360Survey Pass 67.2868366666667154.313771666667Schist 40/39 Plateau Biotite 95.2000 .200000000000000Pelitic schist Till and others, in press 67 17.210200000000000N15418.826300000000000W4058 APK94 105 7250Survey Pass 67.4226866666667154.088803333333Orthogneiss 40/39 Biotite 90.5000 .400000000000000Granitic orthogneiss, total fusion age? Till and others, in press 67 25.361200000000000N154 5.328200000000000W4059 APK90 121 7360Survey Pass 67.2780866666667154.357133333333Metabasite 40/39 Hornblende 105.100 1.000000000000000 Till and others, in press 67 16.685200000000000N15421.428000000000000W4060 APK90 119 7250Survey Pass 67.2863783333333154.368865000000Schist 40/39 Isochron White mica 95.5000 1.000000000000000Pelitic schist Patrick and others, 1994; Till and others, in press 67 17.182700000000000N15422.131900000000000W4061 93JT 124 7360Survey Pass 67.4971083333333154.968033333333Schist 40/39 Biotite 102.000 .200000000000000Biotite-garnet schist Toro and others, 2002; Till and others, in press 67 29.826500000000000N15458.082000000000000W4062 93JT 142 7360Survey Pass 67.5344450000000154.967778333333Schist 40/39 Biotite 95.0000 .300000000000000Biotite-garnet schist; sample locality plots within surfical deposits Toro and others, 2002; Till and others, in press 67 32.066700000000000N15458.066700000000000W4063 93JT 143 7360Survey Pass 67.5516666666667154.990000000000Schist 40/39 Biotite 89.0000 .200000000000000Biotite-garnet schist Toro and others, 2002; Till and others, in press 67 33.100000000000000N15459.400000000000000W4064 93JT 88 7250Survey Pass 67.5016666666667154.990000000000Orthogneiss 40/39 Biotite 77.0000 .300000000000000 Toro and others, 2002; Till and others, in press 67 30.100000000000000N15459.400000000000000W4065 94JT 79 7250Survey Pass 67.4200000000000155.036666666667Orthogneiss 40/39 Biotite 85.0000 1.000000000000000 Toro and others, 2002; Till and others, in press 67 25.200000000000000N155 2.200000000000000W4066 94JT 19 7250Survey Pass 67.5016666666667155.190000000000Skarn 40/39 Hornblende 96.0000 1.700000000000000Skarn to marble Toro and others, 2002; Till and others, in press 67 30.100000000000000N15511.400000000000000W4067 94JT 33 7250Survey Pass 67.5000000000000155.095000000000Orthogneiss 40/39 Hornblende 97.0000 1.000000000000000 Toro and others, 2002; Till and others, in press 67 30.000000000000000N155 5.700000000000000W4068 93JT 96 6983Survey Pass 67.5783333333333154.880000000000Marble 40/39 White Mica 97.0000 .300000000000000 Toro and others, 2002; Till and others, in press 67 34.700000000000000N15452.800000000000000W4069 94JT 79 7250Survey Pass 67.4200000000000155.036666666667Orthogneiss 40/39 White Mica 84.0000 1.000000000000000 Toro and others, 2002; Till and others, in press 67 25.200000000000000N155 2.200000000000000W4070 93JT 85 8661Survey Pass 67.5250000000000154.958333333333Schist 40/39 White Mica 74.0000 .400000000000000Quartz-muscovite schist Toro and others, 2002; Till and others, in press 67 31.500000000000000N15457.500000000000000W4071 AVL94 78 7360Survey Pass 67.4412016666667154.209508333333Unknown 40/39 Biotite 89.0000 .400000000000000 Vogl and others, 2002; Till and others, in press 67 26.472100000000000N15412.570500000000000W4072 AVL95 43 7360Survey Pass 67.4815083333333154.247816666667Unknown 40/39 Biotite 84.8000 .400000000000000 Vogl and others, 2002; Till and others, in press 67 28.890500000000000N15414.869000000000000W4073 AVL95 52 7360Survey Pass 67.3966566666667154.247115000000Quartzite 40/39 Biotite 94.6000 .200000000000000Micaceous quartzite Vogl and others, 2002; Till and others, in press 67 23.799400000000000N15414.826900000000000W4074 AVL94 100b 7360Survey Pass 67.4536650000000154.090538333333Metavolcanic rock 40/39 Total FusionHornblende 152.100 .000000000000000 Vogl and others, 2002; Till and others, in press 67 27.219900000000000N154 5.432300000000000W4075 AVL95 96 7250Survey Pass 67.4255166666667154.079588333333Gneiss 40/39 Hornblende 103.900 .100000000000000Mafic layer in orthogneiss Vogl and others, 2002; Till and others, in press 67 25.531000000000000N154 4.775300000000000W4076 AVL94 60 7360Survey Pass 67.4375183333333154.200161666667Unknown 40/39 Plateau White mica 92.0000 .100000000000000 Vogl and others, 2002; Till and others, in press 67 26.251100000000000N15412.009700000000000W4077 7-26-84-5 5565Wiseman 67.2125000000000150.073600000000Schist 40/39 Isochron White mica 124.000 1.000000000000000Fine-grained quartz mica schist Gottschalk and Snee, 1998; Till and others, in press 67 12.750000000000000N150 4.416000000000000W4078 25b 87 5565Wiseman 67.2238216666667150.133558333333Schist 40/39 Plateau White mica 113.300 .500000000000000 Blythe and others, 1998; Till and others, in press 67 13.429300000000000N150 8.013500000000000W4079 CH 128 8608Ambler River 67.0006633333333156.767243333333Metabasite 40/39 White mica 130.000 .400000000000000Coarse-grained white mica Christiansen and Snee, 1994; Till and others, in press 67 .039800000000000N15646.034600000000000W4080 CH 128 8608Ambler River 67.0006633333333156.767243333333Metabasite 40/39 White mica 127.100 .500000000000000Fine-grained white mica Christiansen and Snee, 1994; Till and others, in press 67 .039800000000000N15646.034600000000000W4081 CH 126 6927Ambler River 67.0023383333333156.929588333333Mylonite 40/39 White mica 103.000 1.200000000000000Quartz mylonite Christiansen and Snee, 1994; Till and others, in press 67 .140300000000000N15655.775300000000000W4082 CH 140 8602Ambler River 67.0147800000000156.886021666667Phyllite 40/39 White mica 103.500 .300000000000000Graphitic phyllite Christiansen and Snee, 1994; Till and others, in press 67 .886800000000000N15653.161300000000000W4083 ELM 34 8602Ambler River 67.0424333333333157.121450000000N.A. 40/39 White mica 94.4000 .900000000000000 Christiansen and Snee, 1994; Till and others, in press 67 2.546000000000000N157 7.287000000000000W4084 SBR88 56 8602Wiseman 67.2274000000000150.198600000000Metagabbro 40/39 Isochron Hornblende 114.000 1.000000000000000Barroisite-hornblende separate. Gottschalk and Snee, 1998; Till and others, in press 67 13.644000000000000N15011.916000000000000W4085 SBR88 51b 7250Wiseman 67.3597000000000150.160600000000Schist 40/39 Isochron Biotite 128.500 .200000000000000Feldspathic schist Gottschalk and Snee, 1998; Till and others, in press 67 21.582000000000000N150 9.636000000000000W4086 SBR88 51b (replicate)7250Wiseman 67.3597000000000150.160600000000Schist 40/39 Plateau Biotite 129.300 .400000000000000Feldspathic schist Gottschalk and Snee, 1998; Till and others, in press 67 21.582000000000000N150 9.636000000000000W4087 SBR88 57 8602Wiseman 67.2260000000000150.226400000000Schist 40/39 Plateau White mica 118.300 .300000000000000Quartz-mica schist Gottschalk and Snee, 1998; Till and others, in press 67 13.560000000000000N15013.584000000000000W4088 SBR88 8a 8602Wiseman 67.2431000000000151.050000000000Schist 40/39 Plateau White mica 124.200 .300000000000000Quartz-mica schist Gottschalk and Snee, 1998; Till and others, in press 67 14.586000000000000N151 3.000000000000000W4089 SB51 2a 7260Ambler River 67.2160166666667156.648583333333Schist 40/39 White Mica 130.600 .400000000000000Quartz-mica schist Christiansen and Snee, 1994; Till and others, in press 67 12.961000000000000N15638.915000000000000W4090 SB52 2b 7260Ambler River 67.2294616666667156.740478333333Schist 40/39 Plateau White Mica 171.400 .400000000000000Quartz-mica schist Christiansen and Snee, 1994; Till and others, in press 67 13.767700000000000N15644.428700000000000W4091 SB53 1 8602Ambler River 67.2801866666667156.711888333333Schist 40/39 White mica 123.000 .500000000000000Garnet-bearing schist Christiansen and Snee, 1994; Till and others, in press 67 16.811200000000000N15642.713300000000000W4092 6-20-84-4 8602Wiseman 67.2839000000000150.138900000000Eclogite 40/39 Hornblende 187.000 6.000000000000000Retrograded eclogite. Isochron date of 188 +/- 6 determined from all steps. Locality plots in surficial deposits as shown be Gottschalk and Snee (1998)Gottschalk and Snee, 1998; Till and others, in press 67 17.034000000000000N150 8.334000000000000W4093 28-87 8602Wiseman 67.2800383333333150.124616666667Schist 40/39 Plateau White mica 124.600 1.800000000000000Plateau was not well developed Blythe and others, 1998; Till and others, in press 67 16.802300000000000N150 7.477000000000000W4094 29-87 8602Wiseman 67.3308416666667150.117651666667Schist 40/39 Plateau White mica 122.500 1.900000000000000Plateau was not well developed Blythe and others, 1998; Till and others, in press 67 19.850500000000000N150 7.059100000000000W4095 31-87 8605Wiseman 67.3663816666667150.094926666667Schist 40/39 Plateau White mica 124.800 1.000000000000000Plateau was not well developed Blythe and others, 1998; Till and others, in press 67 21.982900000000000N150 5.695600000000000W4096 31-87 7250Wiseman 67.3483466666667150.175696666667Orthogneiss 40/39 Plateau White mica 120.400 2.200000000000000Granitic orthogniess. Plateau was not well developed Blythe and others, 1998; Till and others, in press 67 20.900800000000000N15010.541800000000000W4097 ABR85 17 7250Chandalar 67.6683000000000148.757800000000Orthogniess 40/39 Isochron White mica 119.000 1.000000000000000Granitic orthogniess Gottschalk and Snee, 1998; Till and others, in press 67 40.098000000000000N14845.468000000000000W4098 8-4-85-5 8605Wiseman 67.4158000000000150.006900000000Phyllite 40/39 Isochron White mica 127.000 2.000000000000000Calc-phyllite Gottschalk and Snee, 1998; Till and others, in press 67 24.948000000000000N150 .414000000000000W4099 ADE91 88 8605Survey Pass 67.2553050000000154.330908333333Schist 40/39 Plateau White mica 101.500 .200000000000000Pelitic schist Till and others, in press 67 15.318300000000000N15419.854500000000000W4100 SBR88 27 7250Wiseman 67.3160000000000151.347500000000Orthogniess 40/39 Plateau White mica 110.400 .300000000000000 Gottschalk and Snee, 1998; Till and others, in press 67 18.960000000000000N15120.850000000000000W4101