Discovery and Significance of the Palaeoseismic Events in the Late Cretaceous Xixia and
详细信息
- 责任者：Cao Gaoshe (School of Resources and Environment Engineering ; Henan Polytechnic University ; Jiaozuo 454000 ; China) ; Gao Lixiang
- 刊名：Sedimentary Geology and Tethyan Geology
- 出版年：2010
- 卷期：30(4)
- 关键词：晚白垩世 ; Upper Cretaceous ; 古地震 ; paleoearthquakes ; 河南 ; Henan Province
- 页码：p.11-18
- 图表：4 illus., 1 table, 15 refs.
- 分类号：1200
- issnNo：ISSN1009-3850
- isbnNo：CN51-1593/P
摘要
The palaeoseismic events in the Late Cretaceous Xixia and Xiaguan Basins may fall into two categories: synsedimentary and diagenetic. The synsedimentary palaeoseismic events led to the formation of synsedimentary faults and breccias horizons, and exercised an important effect on the erosion of rivers. The diagenetic palaeoseismic events are manifested in the "smear" phenomena of conglomerates along the hanging wall of faults, rubbing of calcite crystals,and fault-bounded blocks which are different from the surrounding rocks. This paper may provide useful approaches not only to the burial of dinosaur eggs but also to palaeogeography and palaeotectonic settings.
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