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["85SK 175B",9045,"Baird Mountains",67.0349000000000,161.167800000000,"Granite",null,"Zircon",705,null,"Karl and Aleinikoff, 1990","Killarichuk Hills, western Brooks range",67,2.0940000000,"N",161,10.06800000,"W",67.000000000000,161.00000000000,"(-100+150) diamagnetic zircon","No",537.0,564.0,678.00,0,null,705,63.0,null,0]
["85SK 175B",9045,"Baird Mountains",67.0349000000000,161.167800000000,"Granite",null,"Zircon",705,null,"Karl and Aleinikoff, 1990","Killarichuk Hills, western Brooks range",67,2.0940000000,"N",161,10.06800000,"W",67.000000000000,161.00000000000,"(-100+150) magnetic zircon","No",547.0,577.0,694.00,0,null,705,63.0,null,0]
["85SK 175B",9045,"Baird Mountains",67.0349000000000,161.167800000000,"Granite",null,"Zircon",705,null,"Karl and Aleinikoff, 1990","Killarichuk Hills, western Brooks range",67,2.0940000000,"N",161,10.06800000,"W",67.000000000000,161.00000000000,"(100+150) diamagnetic abraded zircon","No",630.0,647.0,708.00,0,null,705,63.0,null,0]
["85SK 175B",9045,"Baird Mountains",67.0349000000000,161.167800000000,"Granite",null,"Zircon",705,null,"Karl and Aleinikoff, 1990","Killarichuk Hills, western Brooks range",67,2.0940000000,"N",161,10.06800000,"W",67.000000000000,161.00000000000,"(-250) nonmagnetic zircon","No",496.0,532.0,688.00,0,null,705,63.0,null,0]
["77Dn76",null,"Ambler River",67.1733333333333,156.376666666667,"Schist",null,"Zircon",null,null,"Dillon et al, 1979, 1980, Hitzman et al, 1982, 1986, Mayfield et al, 1983","Duplicate sample 77Mw76, Arctic prospect",67,10.4000000000,"N",156,22.60000000,"W",67.173333333333,156.37666666667,"magnetic separate","no",329.0,334.0,373.00,0,null,null,0,null,0]
["77Mw76",null,"Ambler River",67.1733333333333,156.376666666667,"Schist",null,"Zircon",null,null,"Dillon et al, 1979, 1980, Hitzman et al, 1982, 1986, Mayfield et al, 1983","Duplicate sample 77Dn76, Arctic prospect",67,10.4000000000,"N",156,22.60000000,"W",67.173333333333,156.37666666667,"diamagnetic separate","no",327.0,332.0,364.00,0,null,null,0,null,0]
["77Dn72a",7260,"Wiseman",67.1883333333333,152.580000000000,"Schist",null,"Zircon",null,null,"Dillon et al, 1979, 1980","Possibly a metatuff",67,11.3000000000,"N",152,34.80000000,"W",67.188333333333,152.58000000000,null,"no",277.0,285.0,353.00,0,null,null,0,null,0]
["77Dn72b",7260,"Wiseman",67.1883333333333,152.580000000000,"Schist",null,"Zircon",null,null,"Dillon et al, 1979, 1980","Possibly a metatuff",67,11.3000000000,"N",152,34.80000000,"W",67.188333333333,152.58000000000,null,"no",276.0,285.0,367.00,0,null,null,0,null,0]
["77Dn72c",7260,"Wiseman",67.1883333333333,152.580000000000,"Schist",null,"Zircon",null,null,"Dillon et al, 1980","Possibly a metatuff",67,11.3000000000,"N",152,34.80000000,"W",67.188333333333,152.58000000000,null,"no",268.0,279.0,378.00,0,null,null,0,null,0]
["77Dn102a",9060,"Wiseman",67.3500000000000,152.296666666667,"Gneiss",null,"Zircon",null,null,"Dillon et al, 1979, 1980","Sixtymile River, granite orthogneiss",67,21.0000000000,"N",152,17.80000000,"W",67.350000000000,152.29666666667,null,"no",652.0,688.0,807.00,0,null,null,0,null,0]
["77Dn102b",9060,"Wiseman",67.3500000000000,152.296666666667,"Gneiss",null,"Zircon",null,null,"Dillon et al, 1979, 1980","Sixtymile River, granite orthogneiss",67,21.0000000000,"N",152,17.80000000,"W",67.350000000000,152.29666666667,null,"no",656.0,693.0,816.00,0,null,null,0,null,0]
["77Dn102c",9060,"Wiseman",67.3500000000000,152.296666666667,"Gneiss",null,"Zircon",null,null,"Dillon et al, 1980","Sixtymile River, granite orthogneiss",67,21.0000000000,"N",152,17.80000000,"W",67.350000000000,152.29666666667,null,"no",679.0,731.0,895.00,0,null,null,0,null,0]
["77Dn217c",9060,"Wiseman",67.3916666666667,152.786666666667,"Gneiss",null,"Zircon",null,null,"Dillon et al, 1980","Granite orthogneiss, Ernie Lake",67,23.5000000000,"N",152,47.20000000,"W",67.391666666667,152.78666666667,null,"no",801.0,855.0,999.00,0,null,null,0,null,0]
["77Dn217a",9060,"Wiseman",67.3983333333333,152.955000000000,"Gneiss",null,"Zircon",null,null,"Dillon et al, 1979, 1980","Ernie Lake, granite orthogneiss",67,23.9000000000,"N",152,57.30000000,"W",67.398333333333,152.95500000000,null,"no",799.0,829.0,911.00,0,null,null,0,null,0]
["77Dn217b",9060,"Wiseman",67.3983333333333,152.955000000000,"Gneiss",null,"Zircon",null,null,"Dillon et al, 1979, 1980","Granite orthogneiss, Ernie Lake",67,23.9000000000,"N",152,57.30000000,"W",67.398333333333,152.95500000000,null,"no",681.0,761.0,1002.0,0,null,null,0,null,0]
["60ATr134",7250,"Ambler River",67.4000000000000,156.333333333333,"Granite",null,"Zircon",210,null,"Mayfield et al, 1983","Meta-granite",67,24.0000000000,"N",156,20.00000000,"W",67.400000000000,156.33333333333,null,null,0,0,0,0,null,null,0,null,0]
["84APa11",7250,"Survey Pass",67.4000000000000,154.933333333333,"Gneiss",null,"Zircon",null,null,"Arth and Stern, written communication, 1986","Mt. Igikpak, granite and granite gneiss",67,24.0000000000,"N",154,56.00000000,"W",67.400000000000,154.93333333333,null,"no",322.2,326.9,359.20,379.1,null,null,0,null,0]
["84APa13",7250,"Survey Pass",67.4500000000000,154.650000000000,"Gneiss",null,"Zircon",null,null,"Arth and Stern, written communication, 1986","Mt. Igikpak, granite and granite gneiss",67,27.0000000000,"N",154,39.00000000,"W",67.450000000000,154.65000000000,null,"no",288.5,299.6,387.50,317.3,null,null,0,null,0]
["90TM 409",6973,"Wiseman",67.8714000000000,149.731600000000,"Dacite",null,"Zircon",393,2,"Aleinikoff and others, 1993; Till and others, in press","Dacite porphyry; weighted intercept of Pb/Pb ages.",67,52.2840000000,"N",149,43.89600000,"W",0,0,null,null,0,0,393.00,0,null,null,0,null,0]
["90TM 497",6973,"Wiseman",67.9772333333333,149.509833333333,"Porphyry",null,"Zircon",385,2,"Aleinikoff and others, 1993; Till and others, in press","Plagioclase porphyry",67,58.6340000000,"N",149,30.59000000,"W",0,0,null,null,385.0,0,0,0,null,1015,388.7,103,3.2]
["87ATi 70A",7250,"Wiseman",67.1044666666667,155.310050000000,"Orthogneiss",null,"Zircon",400,4,"Till and others, in press","Granitic orthogneiss",67,6.2680000000,"N",155,18.60300000,"W",0,0,null,null,0,0,0,0,null,null,0,null,0]
["77Dn43",7250,"Wiseman",67.3225000000000,151.334166666667,"Gneiss",null,"Zircon",365,15,"Dillon et al, 1979, 1980; Till and others, in press","Wild River",67,19.3500000000,"N",151,20.05000000,"W",67.323333333333,151.34166666667,null,"no",335.0,338.0,357.00,0,null,null,0,null,0]
["88TM 137",7250,"Wiseman",67.3580000000000,150.163600000000,"Orthogneiss",null,"Zircon",392,null,"Aleinikoff and others, 1993; Till and others, in press","Estimated maximum age",67,21.4800000000,"N",150,9.81600000,"W",0,0,null,null,0,0,0,0,null,null,0,null,0]
["77Dn74M",7250,"Survey Pass",67.3750000000000,154.175000000000,"Gneiss",null,"Zircon",365,15,"Dillon et al, 1979, 1980, Nelson and Grybeck, 1980; Till and others, in press","Monzonite orthogneiss",67,22.5000000000,"N",154,10.50000000,"W",67.371666666667,154.18500000000,"magnetic separate","no",356.0,358.0,375.00,0,null,null,0,null,0]
["77Dn74D",7250,"Survey Pass",67.3750000000000,154.175000000000,"Gneiss",null,"Zircon",365,15,"Dillon et al, 1979, 1980, Nelson and Grybeck, 1980; Till and others, in press","206Pb/238U, 207Pb/235U, 207Pb/206Pb dates, diamagnetic separate",67,22.5000000000,"N",154,10.50000000,"W",67.371666666667,154.18500000000,null,null,357.0,0,0,0,null,null,0,null,0]
["90ANK 12",7250,"Chandalar",67.4713333333333,149.009166666667,"Orthogneiss",null,"Zircon",381398,null,"Aleinikoff and others, 1993; Till and others, in press","Compsite of zircon and monazite dates; reported as at least 381 Ma based on monazite and no more than 398 Ma based on zircon.  Data is discordant and no concordia intercept could be calculated.",67,28.2800000000,"N",149,0.55,"W",0,0,null,null,0,0,0,0,null,null,0,null,0]
["93-JT-88",7250,"Survey Pass",67.5016666666667,154.990000000000,"Orthogneiss",null,"Zircon",385,null,"Toro and others, 2002; Till and others, in press","Range of ages, 375 to 395 reported, no error reported",67,30.1000000000,"N",154,59.40000000,"W",0,0,null,null,0,0,0,0,null,null,0,null,0]
["90TM 408",7250,"Chandalar",67.7005000000000,148.705900000000,"Orthogneiss",null,"Zircon",391,1,"Aleinikoff and others, 1993; Till and others, in press","Hornblende-biotite granite gneiss.  Weighted average of 206Pb/238U ages",67,42.0300000000,"N",148,42.35400000,"W",0,0,null,null,391.0,0,0,0,null,null,0,null,0]
["n.a.",7260,"Wiseman",67.0867000000000,155.029333333333,"Metarhyolite",null,"Zircon",386,2,"McClelland and others, 2006; Till and others, in press","Sun/Picnic Creek prospect",67,5.2020000000,"N",155,1.76000000,"W",0,0,null,null,0,0,0,0,null,null,0,null,0]
["n.a.",7260,"Ambler River",67.1346333333333,156.145350000000,"Metarhyolite",null,"Zircon",381,2,"McClelland and others, 2006; Till and others, in press","Tom prospect",67,8.0780000000,"N",156,8.72100000,"W",0,0,null,null,0,0,0,0,null,null,0,null,0]
["n.a.",7260,"Ambler River",67.1875333333333,156.383466666667,"Metarhyolite",null,"Zircon",376,3,"Raterman and others, 2006; Till and others, in press","Arctic deposit",67,11.2520000000,"N",156,23.00800000,"W",0,0,null,null,0,0,0,0,null,null,0,null,0]
["n.a.",7260,"Ambler River",67.1875333333333,156.383466666667,"Metarhyolite",null,"Zircon",376,2,"Raterman and others, 2006; Till and others, in press","Arctic deposit",67,11.2520000000,"N",156,23.00800000,"W",0,0,null,null,0,0,0,0,null,null,0,null,0]
["n.a.",7260,"Ambler River",67.1875333333333,156.383466666667,"Metarhyolite",null,"Zircon",379,3,"Raterman and others, 2006; Till and others, in press","Arctic deposit",67,11.2520000000,"N",156,23.00800000,"W",0,0,null,null,0,0,0,0,null,null,0,null,0]
["n.a.",7260,"Ambler River",67.1875333333333,156.383466666667,"Metarhyolite",null,"Zircon",405,3,"McClelland and others, 2006; Till and others, in press","Arctic deposit",67,11.2520000000,"N",156,23.00800000,"W",0,0,null,null,0,0,0,0,null,null,0,null,0]
["90TM 498",8605,"Chandalar",67.6583333333333,149.195000000000,"Orthogneiss",null,"Zircon",393,2,"Aleinikoff and others, 1993; Till and others, in press","Hornblende-biotite granite gneiss.  Weighted average; interpreted age",67,39.5000000000,"N",149,11.70000000,"W",0,0,null,null,0,0,0,0,null,null,0,null,0]
["85SK 175B",9045,"Baird Mountains",67.0349000000000,161.167800000000,"Granite",null,"Zircon",705,35,"Karl and Aleinikoff, 1990; Till and others, in press","Killarichuk Hills, western Brooks Range.  Alkali feldspar granite",67,2.0940000000,"N",161,10.06800000,"W",67.000000000000,161.00000000000,"(+100) diamagnetic, abraded zircon","No",635.0,648.0,692.00,0,null,705,63.0,null,0]
["W-1",9060,"Wiseman",479.450000000000,152.811150000000,"Orthogneiss",null,"Zircon",971,5,"McClelland and others, 2006; Till and others, in press","Granitic orthogneiss",67,24747.0000000,"N",152,48.66900000,"W",0,0,null,null,0,0,0,0,null,null,0,null,0]
["78Md 120 (MtAngay)",9300,"Baird Mountains",67.7044000000000,159.422800000000,"Granodiorite",null,"Zircon",750,6,"Karl et al, 1989, Till, 1989; Till and others, in press","Intrusive age, Mt. Angayukaqsraq.",67,42.2640000000,"N",159,25.36800000,"W",67.706666666667,159.42333333333,null,"no",0,0,0,0,null,750,0,null,0]
["85Dn 24",9300,"Baird Mountains",67.7407000000000,159.500000000000,"Granite",null,"Zircon",750,6,"Karl and others, 1989; Till and others, in press","Till and others (in pres) report rock type as Alkali feldspar granite",67,44.4420000000,"N",159,30.00000000,"W",0,0,"Fault lense",null,0,0,0,0,null,null,0,null,0]