tab delimited contribution id version timestamp contributor data_model_version reference description 14154 2 2006-12-19T07:55:00.000Z @magic 3.0 10.1016/0012-821X(79)90075-X 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 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_reversed_perc description rock_magnetic_test Barnett Formation Outcrop 638 i DE-DI : LT-T-Z:LP-DC3 This study Sedimentary sediments Barnett Formation 31.1 31.1 261.3 261.3 North America U.S.A. Texas 325 350 Ma 100 156.3 5.8 3 905 4 36 ND ND ND ND 49.1 119.3 1.5 3 100 Mississippian (Osage to perhaps Chester) age. . Dips usually <10 deg. . Thermal 250-500C. . IRM (sat. 0. 2-0. 3T). Supersedes previous RESULTNO 3754. . M >>>>>>>>>> tab delimited ages location age_low age_high age_unit timescale_eon timescale_era timescale_period timescale_epoch method_codes timescale_citations citations Barnett Formation 325 350 Ma Phanerozoic Paleozoic Carboniferous Mississippian GM-FOSSIL Gradstein et al. 2004 This study