Mostrando 4 resultados de: 4
Analysis of an Updated Paleointensity Database (Q<inf>PI</inf>-PINT) for 65–200 Ma: Implications for the Long-Term History of Dipole Moment Through the Mesozoic
ArticleAbstract: The global paleointensity database for 65–200 Ma was analyzed using a modified suite of paleointensiPalabras claves:dipole moment variation, geodynamo, geomagnetic field reversal, superchronAutores:Biggin A.J., Doubrovine P.V., E. J. Piispa, Fairchild L., Hawkins L., Kulakov E.V., Paterson G., Smirnov A.V., Sprain C.Fuentes:scopusNonheating methods for absolute paleointensity determination: Comparison and calibration using synthetic and natural magnetite-bearing samples
ArticleAbstract: Nonheating paleointensity methods utilize an anhysteretic remanent magnetization (ARM) or a saturatiPalabras claves:ARM method, Geomagnetism, paleointensity, paleomagnetism, pseudo-Thellier method, REM methodAutores:E. J. Piispa, Lerner G.A., Smirnov A.V., Surovitckii L.Fuentes:scopusPaleogeography of the Congo/São Francisco craton at 1.5 Ga: Expanding the core of Nuna supercontinent
ArticleAbstract: The Congo/São Francisco (C/SF) craton, one of the largest cratons in Proterozoic paleogeography, hasPalabras claves:Columbia, Congo/São Francisco, Mesoproterozoic, Nuna, paleomagnetism, SupercontinentAutores:E. J. Piispa, Evans D.A.D., Oliveira E.P., Salminen J.M., Smirnov A.V., Trindade R.I.F.Fuentes:scopusPaleomagnetism and Geochemistry of ~1144-Ma Lamprophyre Dikes, Northwestern Ontario: Implications for the North American Polar Wander and Plate Velocities
ArticleAbstract: We present new paleomagnetic and geochemical data from a suite of the ~1144-Ma ultramafic lamprophyrPalabras claves:geochemistry, lamprophyres, Logan Loop, Midcontinent Rift, paleomagnetismAutores:E. J. Piispa, Mitchell R.H., Pesonen L.J., Smirnov A.V.Fuentes:scopus