收稿日期: 2013-01-17
修回日期: 2013-06-05
网络出版日期: 2013-12-10
Forced Regression System Tract and Characteristics of Ledong Area in Yinggehai Basin
Received date: 2013-01-17
Revised date: 2013-06-05
Online published: 2013-12-10
张锐,孙作兴,王英超 . 莺歌海盆地乐东区强制海退体系域及其特征[J]. 天然气地球科学, 2013 , 24(6) : 1159 -1164 . DOI: 10.11764/j.issn.1672-1926.2013.06.1159
In the mid-shallow formations of Ledong area of Yinggehai Basin,forced regression system tracts are widely developed.According to the comprehensive analyses of sediments,seismic,logging,core etc.,it is proposed that forced regression system tracts are developed in shallow depositional environment.The depositional wedges prograde toward basin center along downdip direction of the continental slope in section and shorelines migrate toward basin center in turn with method of approximately paralleling in plane.Fine reservoirs include longshore bar,channel sandstone,turbidite sandstone.Forced regression system tracts in Ledong depression area possess the basic condition of forming large-scale oil and gas reservoirs and is strategically important to rolling exploration in the research area.
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