tab delimited contribution id version timestamp contributor data_model_version reference description 13876 2 2006-12-21T10:43:47.000Z @magic 3.0 10.1029/94JB01056 Upgraded to MagIC Data Model 3.0 by the MagIC Database Team >>>>>>>>>> tab delimited locations location location_type result_name result_type method_codes citations geologic_classes lithologies terranes geological_province_sections lat_s lat_n lon_w lon_e continent_ocean country region age_low age_high age_unit dir_tilt_correction dir_dec dir_inc dir_alpha95 dir_k dir_n_sites dir_n_samples fold_test conglomerate_test contact_test reversal_test pole_lat pole_lon pole_dp pole_dm pole_comp_name pole_reversed_perc description rock_magnetic_test Mount Wrightson Formation, Group I Outcrop 7481 i DE-DI : LT-T-Z:LP-DC4 This study Extrusive ash flowtuff:Dacite Colorado Plateau Mount Wrightson Formation 31.7 31.7 249.2 249.2 North America U.S.A. Arizona 65 75 Ma 100 176.7 -38.1 9.1 33 9 54 ND ND ND Ro 79.3 85.8 6.4 10.8 I 56 Intruded at base by various plutons. Group I. Thermal to 700C, characteristic component. IRM (no sat. 0. 7T). Remagnetized by Elephant Head Quartz Monzonite (c. 70 Ma). M Mount Wrightson Formation, Group I Outcrop 7481 i DE-DI : LT-T-Z:LP-DC4 This study Extrusive ash flowtuff:Dacite Colorado Plateau Mount Wrightson Formation 31.7 31.7 249.2 249.2 North America U.S.A. Arizona 65 75 Ma 0 153.7 -47.3 9.1 33 9 ND ND ND Ro 79.3 85.8 6.4 10.8 I 56 Intruded at base by various plutons. Group I. Thermal to 700C, characteristic component. IRM (no sat. 0. 7T). Remagnetized by Elephant Head Quartz Monzonite (c. 70 Ma). M Mount Wrightson Formation, Group II Outcrop 7482 i DE-DI : LT-T-Z:LP-DC4 This study Extrusive ash flowtuff:Dacite Colorado Plateau Mount Wrightson Formation 31.7 31.7 249.2 249.2 North America U.S.A. Arizona 65 75 Ma 100 56.1 60.8 5.4 527 3 22 ND ND ND ND 44.8 309.7 6.3 8.2 II 0 Intruded at base by various plutons. Group II. Thermal to 700C, characteristic component. IRM (no sat. 0. 7T). Remagnetized by Elephant Head Quartz Monzonite (c. 70 Ma). M Mount Wrightson Formation, Group II Outcrop 7482 i DE-DI : LT-T-Z:LP-DC4 This study Extrusive ash flowtuff:Dacite Colorado Plateau Mount Wrightson Formation 31.7 31.7 249.2 249.2 North America U.S.A. Arizona 65 75 Ma 0 56.8 86.8 5.4 527 3 ND ND ND ND 44.8 309.7 6.3 8.2 II 0 Intruded at base by various plutons. Group II. Thermal to 700C, characteristic component. IRM (no sat. 0. 7T). Remagnetized by Elephant Head Quartz Monzonite (c. 70 Ma). M Patagonia Granodiorite Outcrop 7483 i DE-DI : LT-AF-Z:LP-DC4 This study Intrusive Granodiorite Colorado Plateau Patagonia Granodiorite 31.2 31.2 249.2 249.2 North America U.S.A. Arizona 60 65 Ma 0 341.8 49.1 8 92 5 31 ND ND ND ND 74.3 159.6 7 10.6 0 AF to 100mT, characteristic component. ND >>>>>>>>>> tab delimited ages location age_low age_high age_unit timescale_eon timescale_era timescale_period timescale_epoch description method_codes timescale_citations citations Mount Wrightson Formation, Group I 197 215 Ma Phanerozoic Mesozoic Triassic : Jurassic Late Triassic : Early Jurassic Lwr member U-Pb c. 220 Ma; mid. member 206+/-9; K-Ar 67+/-2 Ma. GM-UPB Gradstein et al. 2004 This study Mount Wrightson Formation, Group II 197 215 Ma Phanerozoic Mesozoic Triassic : Jurassic Late Triassic : Early Jurassic Lwr member U-Pb c. 220 Ma; mid. member 206+/-9; K-Ar 67+/-2 Ma. GM-UPB Gradstein et al. 2004 This study Patagonia Granodiorite 60 65 Ma Phanerozoic Cenozoic Paleogene Paleocene K-Ar ages biotite 60+/-3, 65+/-2; hornblende 60+/-5 Ma. GM-KAR Gradstein et al. 2004 This study