Late Miocene–Quaternary volcanism, tectonics and drainage system evolution in the East Carpathians, Romania期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

按检索

Late Miocene–Quaternary volcanism, tectonics and drainage system evolution in the East Carpathians, Romania

Authors:	Werner Fielitz Ioan Seghedi

Institution:	^aGeologisches Institut, Universität Karlsruhe, Kaiserstr. 12, D-76131 Karlsruhe, Germany ^bInstitute of Geodynamics “Sabba S. ?tefǎnescu”, 19-21, Jean-Louis Calderon Str., RO-70201 Bucharest 37, Romania

Abstract:	Middle Miocene (Sarmatian) convergence created the fold and thrust belt of the Eastern Carpathians of Romania, which subsequently experienced post-collisional crustal deformation combined with calc-alkaline and alkalic-basaltic volcanism in late Miocene–Quaternary time. This deformation led to the rise of the Cǎlimani–Gurghiu–Harghita volcanic mountains and to the subsidence of the N–S-oriented intramontane Borsec/Bilbor–Gheorgheni–Ciuc and Bra?ov pull-apart basins, and the E-oriented monocline-related Fǎgǎra? basin. The regional drainage network is the composite of: (1) Older E-, SE- and S-flowing rivers, which cross the Carpathians, radiate towards the foreland and were probably established during the Middle Miocene (Sarmatian) collision event. (2) A more recent drainage system related to the contemporaneous development of the volcanoes and intramontaneous basins, which generally drains westward into the Transylvanian Basin since late Miocene time and has been capturing the older river system. The older river drainage system has also been modified by Late Pliocene–Quaternary folding, thrusting and monoclinal tilting along the Pericarpathian orogenic front and by reactivated transverse high angle basement faults, which cross the Eastern Carpathian foreland.

Keywords:	Neotectonics Volcanism River drainage East Carpathians Foreland
本文献已被 ScienceDirect 等数据库收录！

设为首页 | 免责声明 | 关于勤云 | 加入收藏