Kinematic analysis of the Upper Rhine Graben boundary fault system

被引:24
作者
Cardozo, Gideon G. O. Lopes [1 ]
Behrmann, Jan H. [1 ]
机构
[1] Univ Freiburg, Inst Geol, D-79104 Freiburg, Germany
关键词
Upper Rhine Graben; rift; kinematics; deformation; tertiary;
D O I
10.1016/j.jsg.2006.03.010
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
This paper presents a new set of kinematic data for the central part of the Upper Rhine Graben. Fault slip measurements were gathered covering the near field of a 200-km-long segment of the graben boundary faults, on both sides. The resulting kinematic analysis shows a strong predominance of strike-slip faulting and some oblique-slip and pure normal faulting. Overall, there is a regional coherence in the orientations of the extensional and shortening axes associated with both types of faulting throughout the entire study area. The data set is best interpreted as the result of more or less continuous, sinistrally transtensive kinematics with a NW-SE to NNW-SSE oriented, or subvertical shortening, and a NE-SW to E-W oriented extensional direction. Local transpressive overprints are not reflected in the pattern of brittle deformation in the near field of the boundary fault system. We conclude that the opening history of the Rhine Graben may be less complex than hitherto assumed. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1028 / 1039
页数:12
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