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Agglutinated Foraminifera From The Northern Tarcău Nappe (Eastern Carpathians, Romania), Raluca Bindiu, Sorin Filipescu
Agglutinated Foraminifera From The Northern Tarcău Nappe (Eastern Carpathians, Romania), Raluca Bindiu, Sorin Filipescu
Studia UBB Geologia
The Tarcău Nappe is the most important unit of the Carpathian flysch due to its size, stratigraphic, and tectonic complexity. Our purpose was to identify the major types of foraminifera assemblages in relation to the paleoenvironmental settings and their biostratigraphic potential. The identified assemblages are characteristic to the Cretaceous and Paleogene, consisting mostly of benthic agglutinated and, in lower proportions, benthic calcareous and planktonic species. Local abundances of Glomospira specimens allowed the correlation of the examined strata to the early Eocene “Glomospira event” described from the Carpathians in Poland, Morocco, and Labrador. Rzehakina fissistomata (Grzybowski) identified at Palma makes …
Geomathematical Characterisation Of The Mineralization Indicators: A Case Study From Tincova Magmatic Intrusion (Romania), George Tudor
Geomathematical Characterisation Of The Mineralization Indicators: A Case Study From Tincova Magmatic Intrusion (Romania), George Tudor
Studia UBB Geologia
Indicators of the hydrothermal mineralization in the Tincova Laramian intrusion were tested at the contact zone between the intrusive body and the metamorphic host rocks. The mineralization consists of Cu, Pb and Zn sulfides, arsenopyrite, pyrrhotite and pyrite in gangue of quartz, carbonates, feldspar, sericite or clay minerals, and includes areas of hydrothermal alteration or oxidation. Seventy-nine samples were analyzed and processed as two distinct populations. Geomathematical methods highlight the importance of factors such as the shape, sizes of the mineralized zones and geological processes involved in the ore genesis. Trend maps for Cu, Pb + Zn, and Ag interpolated …