Taconian seismogenic deformation in the Appalachian Orogen and the North American Craton
Taconian seismogenic deformation in the Appalachian Orogen and the North American Craton
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阿巴拉契亚造山带和北美克拉通的塔科尼亚地震变形
DOI：
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发表时间：
1999
期刊：
影响因子：
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通讯作者：
D. E. Rast
中科院分区：
文献类型：
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作者：
N. Rast;F. Ettensohn;D. E. Rast
最初，板块构造的范例主要是基于地震学对地震的解释。因此，地质学文献应该更加关注古岩石中地震活动的探测。地震对相对年轻的第三纪和全新世沉积物的影响已被公认，通常在工程的背景下。本文论述了东秦岭下古生界碳酸盐岩带孕震构造的观测证据。北美介绍。结构范围从小断层和液化效应到角砾岩和混杂岩。有时候，我们可以推测出地震发生的断层的动力学。虽然大部分变形发生在克拉通边缘和造山带边缘，但也发生了克拉通内断裂、地震和同沉积变形。
Abstract Originally the paradigm of plate tectonics was largely based on seismological interpretation of earthquakes. It therefore behoves that geological literature should pay more attention to the detection of seismic activity in ancient rocks. The effects of earthquakes on relatively young Tertiary and Holocene deposits have been recognized, commonly in the context of engineering works. In this paper, observational evidence for seismogenic structures in the Lower Palaeozoic carbonate belt of E. North America is presented. The structures range from minor faults and liquefaction effects to breccias and melanges. It is sometimes possible to suggest the dynamics of faults on which earthquakes occurred. Although most of the deformation happened at the margins of the craton and the growing orogenic belt, intracratonic faulting, earthquakes and synsedimentary deformation also took place.