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作者:T. Rolf , L.J. Pesonen
来源:[J].Gondwana Research(IF 7.396), 2018, Vol.63, pp.1-14Elsevier
摘要:Abstract(#br)Paleomagnetism is a key method to reconstruct the Earth's paleogeography and thus essential for understanding tectonic evolution, but it assumes that the Earth's magnetic field structure has always averaged to a geocentric axial dipole (GAD). The GAD hypothesis may b...
作者:L.J. Pesonen , I. Mänttäri
来源:[J].Precambrian Research(IF 4.441), 2016, Vol.286, pp.379-397Elsevier
摘要:Abstract(#br)We present an updated paleomagnetic pole and a new isotope age for the late Paleoproterozoic (Svecofennian) diabase dykes from Keuruu, Central Finland. The paleomagnetic results reveal a dual-polarity remanent magnetization with asymmetry, which we explain by an...
作者:L.J. Pesonen , S.-Å. Elming ...
来源:[J].Tectonophysics(IF 2.684), 2003, Vol.375 (1), pp.289-324Elsevier
摘要:Abstract(#br)Palaeomagnetic data are used to study the configurations of continents during the Proterozoic. Applying stringent reliability criteria, the positions of the continents at 12 times in the 2.45- to 1.00-Ga period have been constructed. The continents lie predomina...
作者:L.J. Pesonen , J. Vuollo
来源:[J].Precambrian Research(IF 4.441), 2014, Vol.244, pp.87-99Elsevier
摘要:Abstract(#br)Paleomagnetic results are presented for two Paleoproterozoic mafic dykes in the Taivalkoski area in northern Karelia Province of the Fennoscandian shield where, based on K-Ar data, the crust has seen minimal effects of the otherwise pervasive 1.8–1.9 Ga Svecofen...
作者:L.J. Pesonen , J. Salminen
来源:[J].Precambrian Research(IF 4.441), 2014, Vol.244, pp.156-169Elsevier
摘要:Abstract(#br)A paleomagnetic study of the Mesoproterozoic Satakunta sandstone formation, Western Finland is presented here. Two components of natural remanent magnetization (NRM) were isolated in the sandstone with alternating field (AF) and thermal demagnetization treatment...
作者:... M. Kostadinova , Ll. Casas , L.J. Pesonen
来源:[J].Physics of the Earth and Planetary Interiors(IF 2.383), 2007, Vol.165 (3), pp.229-247Elsevier
摘要:Abstract(#br)This study investigates archaeological artifacts from five sites in Europe: one from Switzerland (Cheyres—baked clay remains from an Iron Age kiln: 700–530 BC); one from Bulgaria (Drustur—Medieval kiln: 1200–1300 AD); two from Finland (Busö—Medieval ki...
作者:L.J. Pesonen , G. Kletetschka
来源:[J].Earth and Planetary Science Letters(IF 4.349), 2007, Vol.261 (1), pp.143-151Elsevier
摘要:Abstract(#br)The low-temperature magnetic properties of the Neuschwanstein EL6 meteorite as well as of the daubreelite (FeCr 2 S 4 ), troilite (FeS), and FeNi mineral phases were investigated. Low-temperature magnetic behavior of the Neuschwanstein meteorite appears to be co...
作者:... J.I. Vuollo , L.J. Pesonen , V.S. Stepanov
来源:[J].Precambrian Research(IF 4.441), 1999, Vol.98 (3), pp.197-221Elsevier
摘要:Abstract(#br)Results of a paleomagnetic study of Paleoproterozoic dykes and Archean host rocks in the eastern Fennoscandian shield are reported here. Most of the dykes are related to ca 2440 Ma layered intrusions and have isotopic ages between 2349 and 2476 Ma. The dykes for...
作者:L.J. Pesonen , S.-Å. Elming ...
来源:[J].Tectonophysics(IF 2.684), 2000, Vol.319 (3), pp.167-198Elsevier
摘要:Abstract(#br)Key palaeomagnetic poles are defined as those which pass basic reliability criteria and are precisely and accurately dated. They allow a more rigorous analysis of Precambrian continental drift and continental reconstructions than the traditional apparent polar w...
作者:... I.T. Kukkonen , P. Heikkinen , L.J. Pesonen
来源:[J].Tectonophysics(IF 2.684), 2006, Vol.420 (1), pp.283-299Elsevier
摘要:Abstract(#br)In this study, we report the results of an investigation of lithological interpretation of the crust in the central Fennoscandian Shield (in Finland) using seismic wide-angle velocity models and laboratory measurements on P- and S-wave velocities of different ro...

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