Application of High-Resolution Sequence Stratigraphy in Biyang Fault Depression of Nanxiang Basin

Abstract

Abstract: According to recognition marker of terrigenous sequence on seismic profiles and well logs,using the . methods of sedimentary cyclic analysis and Fischer diagram, the upper member of Eh₃ of Shuanghe-Zhao'ao are in Biyang fault-depression can be classified into three terrigenous sequences. In Shuanghe-Zhao'ao area there lies fluvial fan-fan delta-lacustrine depositional system in sequence. In the three terrigenous sequences thirteen parasequence sets which include four basic ty pes, i.e., lowstand aggradation, regression, highstand aggradation and progradation have been developed, of which there are approxmately 40 recognizable parasequences. And the characteristics of sedimentary facies (microfacies) have been further expounded in this paper.

Key words: Nanxiang basin, Biyang sag, continental facies, sequence, resolution, sedimentary facies, sedimentary cyclic

CLC Number:

TE111.3

HU Shou-quan, GUO Wen-ping. Application of High-Resolution Sequence Stratigraphy in Biyang Fault Depression of Nanxiang Basin[J]. Xinjiang Petroleum Geology, 2002, 23(3): 201-204.

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Application of High-Resolution Sequence Stratigraphy in Biyang Fault Depression of Nanxiang Basin

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