Active intraplate deformation in central Europe: paleoseismology of the Lower Rhine Embayment

中欧活跃的板内变形：莱茵河下游海湾的古地震学

• 批准号: 5403579
• 负责人: Professorin Dr. Anke Friedrich, Ph.D.
• 金额: --
• 依托单位: Lehrstuhl für Geologie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2003
• 资助国家: 德国
• 起止时间: 2002-12-31 至 2012-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/5403579?language=en
• 关键词: Active; intraplate; deformation; central; Europe

We propose a multidisciplinary study to determine the age of the most recent ground-breaking earthquake events on active faults in the southern sector of the Lower Rhine Embayment. The main goals of this project are to test the hypothesis that a 0.5m high scarp at Untermaubach, south of Düren, is related to the 1755/56 Düren earthquake series, to discover older events along the same scarp, and to determine how many events were responsible for young scarps in Late Pleistocene deposits of the Erft fault system along the eastern margin of Lower Rhine Embayment. The results of this study will shed light on the recent earthquake history and recurrence intervals of these slowly deforming faults, and lead to a new fault slip-rate data base which will be used to reevaluate seismic hazards in this region. Furthermore, we will compare the geophysical data across alll scarps with the geologic data obtained from the trenches to further calibrate the applicability of GPR, seismic, electromagnetic, and other geophysical methods as important tools, to locate and charactrize slow-moving active faults in humid climatic regions. We already have completed all important preliminary steps, including topographic surveying, drill core sampling, and geophysical exploration, and have been able to select suitables trenching sites.

我们提出了一个多学科的研究，以确定年龄的最新的地面上的活动断层在南部部门的下莱茵河Embayment的地震事件。本项目的主要目标是检验假设，即在Düren南部的Untermaubach有一个0.5米高的陡坎，与1755/56年Düren地震系列有关，发现沿同一陡坎的沿着较老的事件，并确定有多少事件是造成沿莱茵河下湾东缘沿着Erft断层系统晚更新世沉积物中年轻陡坎的原因。这项研究的结果将揭示这些缓慢变形断层的近期地震历史和复发间隔，并导致一个新的断层滑动率数据库，将用于重新评估该地区的地震危险性。此外，我们将比较所有陡坎的地球物理数据与从沟槽获得的地质数据，以进一步校准GPR、地震、电磁和其他地球物理方法作为重要工具的适用性，以定位和表征潮湿气候区的缓慢移动活动断层。我们已经完成了所有重要的初步步骤，包括地形测量、岩心取样和地球物理勘探，并已能够选择合适的挖沟地点。