Geochemistry and Provenance of the Upper Carboniferous Sandstones from Borehole Diósviszló-3 (Téseny Sandstone Formation, SW Hungary) | Szegedi Tudományegyetem, Ásványtani, Geokémiai és Kőzettani Tanszék

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Mai névnapok:

Emil, Csanád

Geochemistry and Provenance of the Upper Carboniferous Sandstones from Borehole Diósviszló-3 (Téseny Sandstone Formation, SW Hungary)

Reference:

Acta Mineralogica-Petrographica, Szeged 2004, Vol. 45/2, pp. 7-14

Szerző:
Varga R. Andrea
Szakmány György

Abstract:
This paper presents the bulk geochemical data measured on core samples collected from borehole Diósviszló Dv-3 (Upper Carboniferous Téseny Sandstone Formation, Slavonian–Drava Unit, Tisza Megaunit, SW Hungary).

On average, analysed samples are slightly enriched in SiO2 and they have similar K2O, Rb, Ba, Th and U abundances to the Upper Continental Crust (UCC). Samples are strongly depleted in MnO, CaO, Na2O, Sr and Pb, and they are slightly depleted in TiO2, Al2O3, Fe2O3, MgO and P2O5 relative to the UCC. In general, the concentrations of both the high field strength elements and the transition trace elements are lower in Téseny sandstones from borehole Dv-3 compared with those of UCC. Total REE concentrations are lower than in the UCC, but chondrite-normalized patterns display the typical LREE-enriched pattern of UCC. These trends can be explained by a sedimentary system dominated by detritus derived from recycled upper crustal material. In addition, chondrite-normalized REE patterns, high Th/Sc, La/Sc and La/Yb ratios, low Cr, V and Ni contents and result of the TiO2-Ni diagram indicate that these rocks were sourced dominantly from felsic magmatic rocks.

The La-Sc-Th and Th-Sc-Zr/10 ternary diagrams of the Upper Carboniferous sandstone samples are typical of continental island arc/active continental margin tectonic settings.

 

Letöltés

 

acta2004, geochemistry, sandstone, source area, SW Hungary, tectonic setting, Tisza Megaunit, Upper Carboniferous

 

 

 

 




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