tab contribution id doi version timestamp magic_version contributor author description 6637 10.1029/JZ070i014p03407 1 2006-12-22T06:35:20.000Z 2.2 @magic >>>>>>>>>> tab delimited er_locations er_location_name location_type location_begin_lat location_begin_lon location_end_lat location_end_lon continent_ocean country region geological_province_section location_class location_lithology location_description er_citation_names Sierra Nevada Plutons Outcrop 38 240 38 240 North America U.S.A. California Sierra Nevada Plutons Intrusive Granite Extent > 20 km. This study >>>>>>>>>> tab delimited er_ages er_location_name age_range_low age_range_high age_unit timescale_eon timescale_era timescale_period timescale_epoch age_description magic_method_codes er_timescale_citation_names er_citation_names Sierra Nevada Plutons 85 92 Ma Phanerozoic Mesozoic Cretaceous Late Cretaceous K-Ar ages 85 to 92 Ma. GM-KAR Gradstein et al. 2004 This study >>>>>>>>>> tab delimited er_citations MAGIC00389025 er_citation_name long_authors year title citation_type journal volume pages book_title book_editors publisher city iaga_database iaga_ref_no This study Gromme, C.S. and Merrill, R.T. 1965 Paleomagnetism of Late Cretaceous granitic plutons in the Sierra Nevada, California; Further results Journal Journal of Geophysical Research 70 3,407-3,420 GPMDB 300 As & Zijderveld 1958 As, J.A. and Zijderveld, J.D.A. 1958 Magnetic cleaning of rocks in paleomagnetic research Journal Geophysical Journal International 1 308-319 Collinson 1983 Collinson, D.W. 1983 Book 503 Methods in rock magnetism and Paleomagnetism: Techniques and instrumentation Chapman and Hall London Cox & Doell 1960 Cox, A. and Doell, R.R. 1960 Review of paleomagnetism Journal Geological Society of America Bulletin 71 645 Gradstein et al. 2004 Gradstein, F.M., Ogg, J.G. and Smith, A.G. 2004 Book 588 A Geologic Time Scale Cambridge University Press Cambridge McElhinny & McFadden 2000 McElhinny, M.W. and McFadden, P.L. 2000 Serial Book International Geophysics Series 73 1-1 Paleomagnetism: continents and oceans Dmowska, R., Holton, J.R. and Rossby, H.T. Academic Press San Diego >>>>>>>>>> tab delimited pmag_results pmag_result_name er_location_names data_type fold_test conglomerate_test contact_test reversal_test rock_magnetic_test average_lat average_lon average_age_low average_age_high average_age_unit average_inc average_dec average_alpha95 average_n average_nn vgp_lat vgp_lon vgp_dp vgp_dm tilt_correction percent_reversed iaga_database iaga_res_no result_description magic_method_codes er_citation_names 3441 Sierra Nevada Plutons a ND ND ND ND M 38 240 85 92 Ma 68 336 6.5 14 80 68.8 195.2 9.6 9.6 0 0 GPMDB 3441 Combined Result. AF cleaning used with some samples. OP (MAGN, some HEM) , X-Ray, AN. Supersedes RESULTNO 3589 with addition of 5 extra sites. LP-DC2 : DE-VGP : LT-AF-Z This study >>>>>>>>>> tab delimited magic_methods magic_method_code method_type method_definition method_description method_iaga7 method_url_tauxe er_citation_names DE-VGP Direction Estimation Pole latitude and longitude calculation from mean VGP Ptype V Cox & Doell 1960 GM-KAR Geochronology Method 40K-40Ar age determination LP-DC2 Lab Protocol Bulk demagnetization carried out on all samples but no vector diagrams shown DC2 http://earthref.org/MAGIC/books/Tauxe/2005/lecture.16.htm#IAGA7 McElhinny & McFadden 2000 LT-AF-Z Lab Treatment Alternating field: In zero field A specimen is subject to a decaying and alternating magnetic field such that the magnetic moments with coercivities below the peak field are aligned in opposed directions, and thus cancel. Specimens are typically reoriented in three or more orthogonal axe. A http://earthref.org/MAGIC/books/Tauxe/2005/lecture.09.htm#LT-AFZ As & Zijderveld 1958 : Collinson 1983