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- Title
PEBBLES WITH INTRACARPATHIAN SOURCE AREA IN THE GRAVELS FROM THE COTMEANA AND OLTEȚ PIEDMONTS (ROMANIA).
- Authors
Flori, CULESCU; Monica, GHENCIU
- Abstract
For purposes of this paper, the intra-Carpathian source area includes the south-east of the Transylvanian Basin, the Perșani and Baraolt mountains, as well as the north-Carpathian source areas (the northern slope of the Făgăraș Mountains and the northeastern slope of the Cindrel Mountains). All these source areas are drained by the Olt River that separates the two piedmonts. The detrital material transported by the Olt was preferentially deposited on the left bank, in the Cotmeana Piedmont, very little in the Olteț Piedmont, predominantly sandy. Most petrographic types of pebbles with an intra-Carpathian source area (red quartz sandstones with jasper lithoclasts, silicolites, rhyolites and rhyodacites) occur in the gravels on the western edge of the Cotmeana Piedmont. Olivine-bearing basalt pebbles, volcanic breccias, and granodiorites occur exclusively in the gravels on the western margin of the piedmont. Most of the large pebbles (boulders) also appear in the gravels of this piedmont area. Boulders of jaspers and red sandstones occur exclusively on the western edge of the piedmont. The asymmetric deposition of the detrital material carried by the Olt River suggests a possible paleo-course of it diverted to the east, on the current territory of the Cotmeana Piedmont.
- Subjects
PEBBLES; GRAVEL; OLIVINE; BANK deposits; QUARTZ; BOULDERS; DEPOSIT banking
- Publication
Oltenia, Studii si Comunicari Seria Stiintele Naturii, 2023, Vol 39, Issue 1, p39
- ISSN
1454-6914
- Publication type
Article