Doru-Toader JURAVLE, Viorel IONESI, Dumitru BULGARIU, Carmen Mariana CHIRA, Silvia MARE, Iuliana Gabriela BREABAN, Ioan Gabriel SANDU, Angelica JURAVLE<br>Mineralogical and Geochemical Study of Silto-lutitic Petrofacies of Upper Ypresian/Lower Lutetian Age Paleoenvironmental significance

Doru-Toader JURAVLE, Viorel IONESI, Dumitru BULGARIU, Carmen Mariana CHIRA, Silvia MARE, Iuliana Gabriela BREABAN, Ioan Gabriel SANDU, Angelica JURAVLE
Mineralogical and Geochemical Study of Silto-lutitic Petrofacies of Upper Ypresian/Lower Lutetian Age Paleoenvironmental significance

Abstract:

Research on Paleogene deposits of Eastern Carpathian foreland basin revealed the existence of relative geotectonic stability alternating with episodes of increased instability, the change in paleoclimates context, meaning the accentuated cooling at the end of Eocene/ the beginning of Oligocene, the change of source areas/sedimentation basin geomorphological relations and sediment production in exondate land. Significant modifications have been identified in alpine foreland basins within Ypresian (Yp)/Lutetian (Lu) limit interval. In this paper we aimed to follow the „imprints” of these events which are stored in silto-lutitic deposits from Eastern Carpathian foreland basin from Bucovina (Eastern Carpathians), within the Yp/Lu interval. For the documentation of the paleoevents of source areas - paleoclimate - depositional areas system we used geochemical markers. Based on mineralogical and geochemical data, our described paleoevents have been correlated with geotectonic and paleoclimatic data for Eastern Carpathian foreland basin and other alpine basins (Pamplona and Basc from Western Pyrenees). Keywords: petrofacies, geochemical markers, source areas, paleoenvironment significations

Issue: 2015, Volume 66, Issue 12

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