Neotectonics in the Tyrrhenian marine deposits of the southeastern Tunisian coast:: implications for sea level changes

被引:54
作者
Bouaziz, S
Jedoui, Y
Barrier, É
Angelier, J
机构
[1] Univ Sfax, Ecole Natl Ingn Sfax, Lab 3E AD 10 02, Sfax 3038, Tunisia
[2] Univ Paris 06, Lab Tecton, F-75252 Paris 05, France
关键词
Tunisia; coastal deposits; interglacial; sea level; neotectonics; stress regime;
D O I
10.1016/S1631-0713(03)00031-2
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
Pleistocene marine deposits of so-called Tyrrhenian age in southeastern Tunisia include two lithostratigraphic units of Last Interglacial (marine isotopic substage 5e). The lower unit culminates at about +3 m above the sea level; the upper unit with Strombus bubonius culminates at +5 m. Brittle deformations affected the upper unit. The analysis of fault-slip data sets reveals a post-Tyrrhenian N020degreesE trending compression, consistent with joint patterns. This event induced limited vertical movements, showing that at the northeastern edge of the Saharan Platform, the coastal area of the southern Tunisia remained relatively stable since at least the Last Interglacial. (C) 2003 Academie des sciences/Editions scientifiques et medicales Elsevier SAS. All rights reserved.
引用
收藏
页码:247 / 254
页数:8
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