Palaeomagnetism of Palaeozoic rocks from the Cabo de Penas, Asturia, Spain
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چکیده
منابع مشابه
Weathering of Chlorite a N D Vermiculite in Ultramafic Rocks of Cabo Ortegal, Northwestern Spain 1
-Chloritic veins in serpentinite and their weathering products were analyzed by X-ray powder diffraction (XRD) and X-ray fluorescence spectrometry (XRF). Chlorite formed during the Hercynianage orogenesis had apparently been partly transformed to high-charge vermiculite during subsequent metamorphism of the rocks. The idealized structural formulae for these minerals are (mlL9Fea+0.zFe2+o.4Mg9.2...
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S U M M A R Y The Upper Carboniferous-Lower Triassic Pyongan Supergroup is exposed in an E-W trending syncline comprising the Samcheok Coalfield in eastern South Korea; it borders the southern margin of a NE-SW trending (Okcheon) zone of Upper Jurassic-Lower Cretaceous deformation (Daebo Orogeny). Although a Recent field overprint widely recorded in Korean rocks is represented here, an ancient ...
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ژورنال
عنوان ژورنال: Geophysical Journal International
سال: 1983
ISSN: 0956-540X,1365-246X
DOI: 10.1111/j.1365-246x.1983.tb01885.x