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Uplift and active tectonics of southern Albania inferred from incision of alluvial terraces

Julien Carcaillet 1 Jean-Louis Mugnier 1 R. Koçi 2 François Jouanne 1
1 LGCA - Laboratoire de Géodynamique des Chaines Alpines
2 Institute of Geosciences of the Polytechnic University
Abstract : In Albania, the Osum and Vjoje rivers cross the active graben system and the active frontal thrust system of the Albanides. The effects of climatic and geodynamic forcing on the development of these two rivers were investigated by the means of field mapping, topographic surveying and absolute exposure-age dating. We established the chronology of terraces abandonment from the compilation of new dating (14C and in situ produced 10Be) and previously published data. We identified nine fluvial terraces units developed since Marine Isotope Stage 6 up to historic times. From this reconstituted history, we quantified the vertical uplift on a time scale shorter than the glacial climatic cycle. Regional bulging produces an overall increase of the incision rate from the west to the east that reaches a maximum value of 2.8 m/ka in the hinterland. Local pulses of incision are generated by activation of normal faults. The most active faults have a SW–NE trend and a vertical slip rate ranging from 1.8 to 2.2 m/ka. This study outlines the geodynamic control in the development of rivers flowing through the Albanides on the scale of 103–105ka
Keywords : Albania Albanides Alluvial terraces Incision rate Neotectonics Paleoclimate Surface exposure age In situ produced 10Be 14C Uplift
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Submitted on : Wednesday, August 26, 2009 - 9:19:35 AM
Last modification on : Friday, September 25, 2020 - 3:13:56 AM

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Julien Carcaillet, Jean-Louis Mugnier, R. Koçi, François Jouanne. Uplift and active tectonics of southern Albania inferred from incision of alluvial terraces. Quaternary Research, Elsevier, 2009, 71 (3), pp.465-476. ⟨10.1016/j.yqres.2009.01.002⟩. ⟨insu-00411093⟩

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