The northern Upper Rhine Graben: basin geometry and early syn-rift tectono-sedimentary evolution |
| |
Authors: | Christian E Derer Markus E Schumacher Andreas Schäfer |
| |
Institution: | (1) Wintershall AG, Friedrich-Ebert-Straße 160, 34119 Kassel, Germany;(2) Department of Earth Sciences, University of Basel, Bernoulliestrasse 32, CH, 4056 Basel, Switzerland;(3) Institute of Geology, University of Bonn, Nussallee 8, 53115 Bonn, Germany |
| |
Abstract: | A large-scale transfer zone subdivides the northern parts of the Upper Rhine Graben into a northern and a southern sub-basin. These sub-basins display the geometry of asymmetric half-grabens with opposing tilt directions. The transfer zone connects the western master fault of the northern half-graben with the eastern master fault of the southern half-graben. In the northern Upper Rhine Graben early syn-rift sedimentation (Late Priabonian to Late Rupelian) was controlled by the tectonically induced subsidence of these half-grabens (autogenetic), as well as by regional third-order sea level variations (allogenetic). Within the graben, lateral changes in subsidence rates (in dip and strike direction of fault blocks) controlled the development of accommodation space and thus, sediment thickness and facies. Furthermore, a low-displacement segment along the western border fault acted as a sediment entry point. Tectonics controlled the distribution of early syn-rift deposits and the palaeogeography of the northern Upper Rhine Graben. |
| |
Keywords: | Upper Rhine Graben Transfer zone Early syn-rift stage Tectonics Sedimentary cycles |
本文献已被 SpringerLink 等数据库收录! |
|