International Geological Journal - Official Journal of the Carpathian-Balkan Geological Association

A NEW OCCURRENCE OF TRIASSIC DEPOSITS NE OF ORAVIŢA (SOUTHERN CARPATHIANS, RUMANIA) AND ITS PALEOTECTONIC SIGNIFICANCE

Pages: 39 - 48

Authors: IOAN I. BUCUR, CAROL STRUTINSKI, MARIA PAICA

Abstract: Until recently, in the western part of the South Carpathians Triassic deposits were only known south of the Nera River between Sasca Montană and Moldova Nouă, belonging to the Sasca-Gornjak structural unit (Săndulescu 1975). Core analysis of a borehole drilled NE of Oravita (Brădisorul de Jos) led to the identification of a Triassic formation of the same type and age (Early-Middle Triassic) about 20 km further northerly than previously known. As in the Sasca Montană-Moldova Nouă area, the Triassic deposits are overlain by a Middle Jurassic sedimentary sequence, some tens of metres thick. The paper presents a biostratigraphical analysis of the foraminiferal assemblages that have been identified in the drill core, gives a brief description of the microfacies of the carbonate deposits encountered, and comments on the paleotectonic significance of the newly found Triassic occurrence.

Keywords: Triassic, Southern Carpathians, biostratigraphy, tectonics

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