{"text_format":"dbase-jsonl-2026-09-30","columns":[{"name":"AGE","type":"number","width":7,"decimals":3},{"name":"COMMENT","type":"character","width":154},{"name":"ERROR","type":"number","width":5,"decimals":3},{"name":"LATDEG","type":"number","width":2,"decimals":0},{"name":"LATDIR","type":"character","width":1},{"name":"LATITUDE","type":"number","width":18,"decimals":15},{"name":"LATMIN","type":"number","width":5,"decimals":2},{"name":"LONGDEG","type":"number","width":3,"decimals":0},{"name":"LONGDIR","type":"character","width":1},{"name":"LONGITUDE","type":"number","width":19,"decimals":14},{"name":"LONGMIN","type":"number","width":5,"decimals":2},{"name":"METHOD","type":"character","width":18},{"name":"MINERAL","type":"character","width":10},{"name":"NSACLASS","type":"number","width":4,"decimals":0},{"name":"QUAD","type":"character","width":14},{"name":"REC_NO","type":"number","width":4,"decimals":0},{"name":"REFERENCE","type":"character","width":66},{"name":"ROCK_TYPE","type":"character","width":16},{"name":"SAMPLE","type":"character","width":10}],"n_rows":20,"rows_kept":20,"cut":false,"deleted_skipped":0,"read_ended":"whole","bounds":"16MiB/16384/4096/first_that_fit","version":"dbase_level_three","encoding_class":"enc_single_byte","reader":"statdb_count/9"}
[104.000,"Kialegak pluton",3.000,62,"N",62.990000000000000,59.40,169,"W",-169.59500000000000,35.70,"K/Ar","Biotite",2491,"Saint Lawrence",1348,"Csejtey et al, 1971, Patton and Csejtey, 1979; 1980","Quartz monzonite","70ACy162"]
[104.000,"Kinipaghulghat pluton",3.100,63,"N",63.183333333333300,11.00,168,"W",-168.91666666666700,55.00,"K/Ar","Hornblende",2491,"Saint Lawrence",1349,"Csejtey et al, 1971, Patton and Csejtey, 1979; 1980","Syenite","66AMm245"]
[90.900,"West side of Powooiliak Bay",3.000,63,"N",63.376666666666700,22.60,171,"W",-171.29166666666700,17.50,"K/Ar","Biotite",2330,"Saint Lawrence",1350,"Patton and Csejtey, 1971, 1979; 1980","Tuff","69APa187B"]
[39.300,"South of Camp Iveetok",1.000,63,"N",63.443333333333300,26.60,170,"W",-170.07333333333300,4.40,"K/Ar","Biotite",1070,"Saint Lawrence",1351,"Patton and Csejtey, 1979; 1980","Rhyolite","79APa47a"]
[0.238,"Kookooligit Mountains, west of Camp Iveetok",0.132,63,"N",63.466666666666700,28.00,170,"W",-170.28833333333300,17.30,"K/Ar","Whole rock",330,"Saint Lawrence",1352,"Marvin and Dobson, 1979, Patton and Csejtey, 1979; 1980","Basalt","71AHr134a"]
[221.000,"Poovoot Range",7.000,63,"N",63.466666666666700,28.00,171,"W",-171.51666666666700,31.00,"K/Ar","Hornblende",5140,"Saint Lawrence",1353,"Patton and Csejtey,1979; 1980","Gabbro","70APa13"]
[93.500,"Sevuokuk pluton",3.000,63,"N",63.475000000000000,28.50,171,"W",-171.52333333333300,31.40,"K/Ar","Biotite",2491,"Saint Lawrence",1354,"Csejtey et al, 1971, Patton and Csejtey, 1979; 1980","Quartz monzonite","69APa219E"]
[64.000,"South of Kangee Camp",2.000,63,"N",63.496666666666700,29.80,170,"W",-170.87000000000000,52.20,"K/Ar","Whole rock",1145,"Saint Lawrence",1355,"Dalrymple and Lanphere, 1971, 1974; Patton and Csejtey, 1979; 1980","Dacite","69ACy163B"]
[64.400,"South of Kangee Camp",1.900,63,"N",63.501666666666700,30.10,170,"W",-170.90333333333300,54.20,"K/Ar","Sanidine",1145,"Saint Lawrence",1357,"Patton and Csejtey, 1971, 1979, 1980; Bolm 1983","Rhyolite","66APa242"]
[62.100,"South of Kangee Camp",1.800,63,"N",63.501666666666700,30.10,170,"W",-170.90333333333300,54.20,"K/Ar","Hornblende",1145,"Saint Lawrence",1358,"Patton and Csejtey, 1971, 1979; 1980","Rhyolite","66APa242a"]
[244.000,"North Mamagnak Mountains",7.000,63,"N",63.573333333333300,34.40,171,"W",-171.58000000000000,34.80,"K/Ar","Hornblende",5140,"Saint Lawrence",1359,"Patton and Csejtey, 1971, 1979; 1980","Gabbro","69APa229A"]
[0.364,"Massive, alkali olivine basalt flow, Kookooligit Mountains",0.06,63,"N",63.598333333333300,35.90,170,"W",-170.55333333333300,33.20,"K/Ar","Whole rock",330,"Saint Lawrence",1360,"Marvin and Dobson, 1979, Patton and Csejtey, 1979; 1980","Basalt","66AHr136b"]
[1.460,"Kookooligit Mountains",0.13,63,"N",63.651666666666700,39.10,170,"W",-170.61666666666700,37.00,"K/Ar","Whole rock",330,"Saint Lawrence",1361,"Marvin and Dobson, 1979, Patton and Csejtey, 1979; 1980","Basalt","66AHr217b"]
[0.654,"Koomlangeelkuk Bay.  Reversed magnetization suggests flow is older",0.183,63,"N",63.658333333333300,39.50,170,"W",-170.61666666666700,37.00,"K/Ar","Whole rock",330,"Saint Lawrence",1362,"Marvin and Dobson, 1979, Patton and Csejtey, 1979; 1980","Basalt","66AHr218a"]
[108.000,"Sevuokuk Pluton",3.200,63,"N",63.765000000000000,45.90,171,"W",-171.67666666666700,40.60,"K/Ar","Biotite",2491,"Saint Lawrence",1363,"Csejtey et al, 1971, Patton and Csejtey, 1971, 1979, 1980","Quartz monzonite","66AMm211"]
[113.300,"Nepheline syenite.  Total fusion age 115.46+/-1.11 Ma, Isochron age 112.68+/-1.28 Ma",1.100,63,"N",63.271000000000000,16.26,170,"W",-170.21583333333333,12.95,"40/39 Plateau","Biotite",2535,"Saint Lawrence",4076,"Amato and others, 2003b; Patton and others, in prep.","Syenite","71APa 306b"]
[110.200,"Sevuokuk pluton.  Total fusion age 109.7+/-0.6 Ma, isochron age 110.6+/-2.4 Ma.  Corrected sample location provided by J.M. Amato (written commun., 2009)",0.6,63,"N",63.777000000000000,46.62,171,"W",-171.70000000000000,42.00,"40/39 Plateau","Biotite",2515,"Saint Lawrence",4078,"Amato and others, 2003b; Patton and others, in prep.","Granite","94StL 19"]
[100.000,"Sevuokuk pluton.  Total fusion age 99.9+/-0.5 Ma, isochron age 99.8+/-0.5 Ma.  Corrected sample location provided by J.M. Amato (written commun., 2009)",0.5,63,"N",63.355166666666667,21.31,171,"W",-171.64000000000000,38.40,"40/39 Plateau","Biotite",2520,"Saint Lawrence",4079,"Amato and others, 2003b; Patton and others, in prep.","Granodiorite","94StL 8a"]
[102.300,"Iwoonut pluton.  Total fusion age 102.3+/-0.5 Ma, isochron age 102.5+/-0.5 Ma.  Corrected sample location provided by J.M. Amato (written commun., 2009)",0.5,63,"N",63.338500000000000,20.31,171,"W",-171.55916666666667,33.55,"40/39 Plateau","Biotite",2491,"Saint Lawrence",4080,"Amato and others, 2003b; Patton and others, in prep.","Monzodiorite","94StL 1"]
[65.500,"South of Kangee Camp, age recalculated using constants of Steiger and Jager (1977).  Plateau age, 65.6+/-1.2 Ma; isochron age of plateau steps 65.4+/-8 Ma",1.300,63,"N",63.496666666666700,29.80,170,"W",-170.87000000000000,52.20,"40/39 Total Fusion","Whole rock",1145,"Saint Lawrence",4207,"Dalrymple and Lanphere, 1971, 1974","Dacite","69ACy163B"]