Formation Mechanism and Significance of Continental Clastic Seismites
详细信息
- 责任者：Lin Shiguo (School of Energy Resources ; China University of Geosciences ; Beijing 100083 ; China) ; Zheng Rongcai
- 刊名：Natural Gas Geoscience
- 出版年：2013
- 卷期：24(1)
- 关键词：震积岩 ; seismites
- 页码：p.78-84
- 图表：illus., 29 refs.
- 分类号：0803
- issnNo：ISSN1672-1926
- isbnNo：CN62-1177/TE
摘要
The seismites is one of the research hotspots in recent years.With the deepening of the study,more and more seismite structures have been identified in ancient strata.Based on the study of typical seismites in different base,the paper analyzes formation mechanism of different seismite.Many continental clastic seismites’ structures related to sand liquefaction.Micro normal fractures were formed t during stress adjustment which was occured after liquefaction of sands and micro corrugating.Vertical fault throw of micro normal fractures is equal to the differential subsidence of sands that have different particle size.Continental clastic seismites have no general sediment sequence because its distribution was mainly controlled by sedimentary facies or lithology.But similar sequence to vibration liquefaction in carbonate rock can be found in silt and clay size deposit.Seismites research is significant to structural-sedimentary evolvement analysis,earthquake forecast,exploration and development of oil & gas and regional stratigraphic correlation.