Palaeomagnetic and rock magnetic studies on some Bulgarian Plio-Palaeocene basalts |
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| Authors: | K M Creer P Nozharov J J Wagner |
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| Institution: | (1) School of Physics, University of Newcastle upon Tyne, England;(2) Institute of Geophysics, Bulgarian Academy of Sciences, Sofia;(3) Geophysical Laboratory, University of Geneva, Switzerland |
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| Abstract: | Summary Normal and reversed remanent magnetization has been found in Plio-Pleistocene basalts from Bulgaria. Ore microscope observations show that the magnetic mineral is a homogeneous  titanomagnetite : electron microprobe studies show that it contains a high proportion of Ti. Comparison of thermomagnetic measurements with the Curie points expected for stoichiometric titanomagnetites with the analysed chemical composition suggest that the titanomagnetites must be slightly oxidized, i.e. be slightly cation deficient. |
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