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Syndepositional scoured deformation structure in grain flow deposition(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2004年第03期
Page:
13-16
Research Field:
Publishing date:

Info

Title:
Syndepositional scoured deformation structure in grain flow deposition
Author(s):
WANG Xin-zheng
Institute of Geology and Geophysics , Chinese Academy of Science , Beijing 100029 , China
Keywords:
Jiyang depression ; grain flow ; scoured deformation structure
PACS:
P588.2
DOI:
-
Abstract:
A series of syndepositional deformation structures were developed in grain flow deposition of the third member of the Shahejie formation of well Tuo147, Jiyang depression , including :small extended-sharpe sand called sand wedge)formed by scouring of grain flow and squeezing of sand into underlying oil shale along liminate ;turned-over deformation of thin-layered oil shale called turned-over slice) due to scouring of later flow ;deformation produced by tearing up of turned-over slice , and then wrapping into grain flow and being dragged by vein-like branch formed by continous dragging of the deformation body.These structures can form a continuous deformation sequence .The important factors to form these structure are thin layers of oil shale and grain flow .

References:

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Memo

Memo:
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Last Update: 2004-09-20