tab delimited contribution id version timestamp contributor data_model_version reference description 13180 2 2006-12-19T12:40:37.000Z @magic 3.0 10.1038/192039a0 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 Hartshill Quartzite Outcrop 3615 i DE-DI : LT-AF-Z:LP-DC2 This study Sedimentary Quartzite Hartshill Quartzite 52.5 52.5 358.5 358.5 Europe U.K. England 200 251 Ma 0 193 34 16 12 2 7 ND ND ND ND 18 165 10 18 100 AF cleaning 10mT. Author considers magnetization secondary of Triassic age. ND >>>>>>>>>> tab delimited ages location age_low age_high age_unit timescale_eon timescale_era timescale_period timescale_epoch method_codes timescale_citations citations Hartshill Quartzite 513 542 Ma Phanerozoic Paleozoic Cambrian Early Cambrian GM-FOSSIL Gradstein et al. 2004 This study