Geophysical records of dispersed weathering products on the Frasnian carbonate platform and early Famennian ramps in Moravia, Czech Republic: proxies for eustasy and palaeoclimate

0145419 - GLU-S 20023044 RIV NL eng J - Článek v odborném periodiku
Hladil, Jindřich
Geophysical records of dispersed weathering products on the Frasnian carbonate platform and early Famennian ramps in Moravia, Czech Republic: proxies for eustasy and palaeoclimate.
Palaeogeography, Palaeoclimatology, Palaeoecology. Roč. 181, 1-3 (2002), s. 213-250. ISSN 0031-0182. E-ISSN 1872-616X
Grant CEP: GA AV ČR IAA3013209; GA AV ČR IAA3013809
Výzkumný záměr: CEZ:AV0Z3013912
Klíčová slova: gamma-ray spectrometry * magnetic susceptibility * Devonian carbonate platforms
Kód oboru RIV: DB - Geologie a mineralogie
Impakt faktor: 1.497, rok: 2002

The amounts of weathering products dispersed in pure limestones were documented using the combined methods of gamma-ray logging, gamma-ray spectrometry and magnetic susceptibility measuring (K,Th,U vs. Fe). Six third-order Frasnian eustatic cycles have been inferred from the data, with an estimated period of 1 Ma. The Late Frasnian brought a strong overlay on this hypothetical background setting by rapid sea-level fluctuation (with major glacioeustatic influences). Basically, the humid climates became to prevail on carbonate platforms but sealevel was falling down, both seen in long-term averages.
Trvalý link: http://hdl.handle.net/11104/0043019