tab delimited contribution id version timestamp contributor data_model_version reference description 12056 3 2006-12-22T02:12:28.000Z @magic 3.0 10.1016/S0040-1951(01)00032-4 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_k_ratio dir_polarity dir_n_sites dir_n_samples fold_test_significance fold_test conglomerate_test contact_test reversal_test pole_lat pole_lon pole_dp pole_dm pole_reversed_perc pole_antipodal_angle description rock_magnetic_test Brito Formation Outcrop 8865 i DE-VGP : LT-AF-Z : LT-T-Z:LP-DC4 This study Sedimentary shales:Sandstone Pacific Coastal Plain Brito Formation 11.4 11.4 274 274 North America Nicaragua Nicaragua 34 56 Ma 100 5.8 7.9 12.3 39.5 5 50 Fo ND ND Ro 80.8 55.3 8.8 8.8 200 Eocene. Mainly AF, characteristic component <=80 mT. Includes some results from RESULTNO 288. ND Brito Formation Outcrop 8865 i DE-VGP : LT-AF-Z : LT-T-Z:LP-DC4 This study Sedimentary shales:Sandstone Pacific Coastal Plain Brito Formation 11.4 11.4 274 274 North America Nicaragua Nicaragua 34 56 Ma 0 6.3 2.5 17.1 21.1 5 Fo ND ND Ro 80.8 55.3 8.8 8.8 200 Eocene. Mainly AF, characteristic component <=80 mT. Includes some results from RESULTNO 288. ND Coyol Group Outcrop 8860 i DE-VGP : LT-AF-Z : LT-T-Z:LP-DC4 This study Intrusive:Extrusive Dacite:Basalt Nicaraguan Highland Coyol Group 12.5 12.5 274.7 274.7 North America Nicaragua Nicaragua 16 20 Ma 0 180.2 -2.8 11.9 27 7 47 ND ND ND Ro 78.9 93.5 8.4 8.4 43 Miocene. Mainly AF, characteristic component 55-70 mT. OP (MAGN). ND La Batea Formation Outcrop 8861 i DE-VGP : LT-AF-Z : LT-T-Z:LP-DC4 This study Intrusive:Extrusive andesit:Basalt Nicaraguan Highland La Batea Formation 12 12 275.3 275.3 North America Nicaragua Nicaragua 18 22 Ma 0 148.8 5.9 16.1 33.3 4 28 ND ND ND Ro 55.6 161.2 11.5 11.5 75 Miocene. AF and thermal, characteristic component<=65mT, <=600C. OP (MAGN). ND Matagalpa Group, sites 13,14 Outcrop 8863 i DE-VGP : LT-AF-Z : LT-T-Z:LP-DC4 This study Extrusive Basalt Nicaraguan Highland Matagalpa Group 12.4 12.4 274.8 274.8 North America Nicaragua Nicaragua 28 32 Ma 0 92.9 -17.9 4 39.8 2 34 ND ND ND ND 4.8 192.9 3 3 100 Oligocene. AF and thermal, characteristic component<=65mT, <=600C. OP (MAGN). ND Matagalpa Group, sites 8,9,12 Outcrop 8862 i DE-VGP : LT-AF-Z : LT-T-Z:LP-DC4 This study Extrusive Basalt Nicaraguan Highland Matagalpa Group 12.7 12.7 274.6 274.6 North America Nicaragua Nicaragua 22 26 Ma 0 130.3 -15 40.2 10.5 3 21 ND ND ND Ro 40.9 183.8 29.6 29.6 200 Oligocene - Miocene. AF and thermal, characteristic component<=65mT, <=600C. OP (MAGN). ND Rivas Basic Intrusions Outcrop 8866 i DE-VGP : LT-AF-Z : LT-T-Z:LP-DC4 This study Intrusive sill:basic dyke Pacific Coastal Plain Rivas Basic Intrusions 11.4 11.4 274.1 274.1 North America Nicaragua Nicaragua 40 100 Ma 100 358.9 27.8 8.7 113.2 4 41 90 ND ND ND ND 86.5 256.7 7 7 200 Upper Cretaceous - Lower Eocene. Mainly AF, characteristic component <=35 mT. Includes some results from RESULTNO 289. ND Rivas Basic Intrusions Outcrop 8866 i DE-VGP : LT-AF-Z : LT-T-Z:LP-DC4 This study Intrusive sill:basic dyke Pacific Coastal Plain Rivas Basic Intrusions 11.4 11.4 274.1 274.1 North America Nicaragua Nicaragua 40 100 Ma 0 1.87 90 ND ND ND ND 86.5 256.7 7 7 200 Upper Cretaceous - Lower Eocene. Mainly AF, characteristic component <=35 mT. Includes some results from RESULTNO 289. ND Tamarindo Formation Outcrop 8864 i DE-VGP : LT-AF-Z : LT-T-Z:LP-DC4 This study Extrusive Andesite:Basalt Pacific Coastal Plain Tamarindo Formation 12.3 12.3 273.2 273.2 North America Nicaragua Nicaragua 13 17 Ma 0 2 21.6 3.2 67.5 2 30 ND ND ND Ro 87.7 34.3 3 3 50 169.8 Miocene. Mainly AF, characteristic component <=100 mT. OP (MAGN). ND Tamarindo Formation Outcrop 8864 i DE-VGP : LT-AF-Z : LT-T-Z:LP-DC4 This study Extrusive Andesite:Basalt Pacific Coastal Plain Tamarindo Formation 12.3 12.3 273.2 273.2 North America Nicaragua Nicaragua 13 17 Ma 0 356 19 n 1 ND ND ND Ro 87.7 34.3 3 3 50 169.8 Miocene. Mainly AF, characteristic component <=100 mT. OP (MAGN). ND Tamarindo Formation Outcrop 8864 i DE-VGP : LT-AF-Z : LT-T-Z:LP-DC4 This study Extrusive Andesite:Basalt Pacific Coastal Plain Tamarindo Formation 12.3 12.3 273.2 273.2 North America Nicaragua Nicaragua 13 17 Ma 0 186 -23 r 1 ND ND ND Ro 87.7 34.3 3 3 50 169.8 Miocene. Mainly AF, characteristic component <=100 mT. OP (MAGN). 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 Brito Formation 34 56 Ma Phanerozoic Cenozoic Paleogene Eocene GM-CC-STRAT Gradstein et al. 2004 This study Coyol Group 16 20 Ma Phanerozoic Cenozoic Neogene Miocene 40Ar/39Ar plateau age 18. 46+/-0. 37 Ma, estim. mean age 18 Ma. GM-KAR:GM-ARAR-AP Gradstein et al. 2004 This study La Batea Formation 18 22 Ma Phanerozoic Cenozoic Neogene Miocene 40Ar/39Ar ages 19. 6-23. 9 Ma, estimated mean age 20 Ma. GM-KAR:GM-ARAR Gradstein et al. 2004 This study Matagalpa Group, sites 13,14 28 32 Ma Phanerozoic Cenozoic Paleogene Oligocene 40Ar/39Ar plateau age 32. 1+/-0. 2 Ma, estimated mean age 30 Ma. GM-KAR:GM-ARAR-AP Gradstein et al. 2004 This study Matagalpa Group, sites 8,9,12 22 26 Ma Phanerozoic Cenozoic Paleogene : Neogene Oligocene : Miocene 40Ar/39Ar ages 17. 6-23. 8 Ma, estimated mean age 24 Ma. GM-KAR:GM-ARAR Gradstein et al. 2004 This study Rivas Basic Intrusions 40 100 Ma Phanerozoic Mesozoic : Cenozoic Cretaceous : Paleogene Late Cretaceous : Eocene K-Ar age 50 Ma. GM-CC-STRAT Gradstein et al. 2004 This study Tamarindo Formation 13 17 Ma Phanerozoic Cenozoic Neogene Miocene K-Ar ages 12. 3-18. 4 Ma, estimated mean age 15 Ma. GM-KAR Gradstein et al. 2004 This study