tab delimited contribution id version timestamp contributor data_model_version reference description 12681 2 2006-12-19T09:30:53.000Z @magic 3.0 10.1029/GL011i010p00979 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 Trenton Limestone Outcrop 1222 i DE-VGP : LT-AF-Z : LT-T-Z:LP-DC3 This study Sedimentary Limestone Trenton Limestone 45 45 285 285 North America U.S.A. : Canada Quebec and New York 271 318 Ma 0 166.7 -17.9 3.1 73.9 8 30 ND ND ND ND 53 126.9 2.7 2.7 100 flat lying. AF to 100mT, thermal cleaning used to 550C. IRM (sat. 0. 3T). Remagnetized in Late Paleozoic. Supersedes RESULTNO 2738. . M >>>>>>>>>> tab delimited ages location age_low age_high age_unit timescale_eon timescale_era timescale_period timescale_epoch method_codes timescale_citations citations Trenton Limestone 461 472 Ma Phanerozoic Paleozoic Ordovician Middle Ordovician GM-FOSSIL Gradstein et al. 2004 This study