Sedimentary facies of Upper Triassic Xujiahe Formation in Maliuchang-Datachang area, southern Sichuan Basin

  • CHEN Mo
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  • 1 . Institute of Sedimentary Geology, Chengdu University of Technology, Chengdu 610059, China; 2. State Key Laboratory of Oil and Gas Reservoir Geology and Ex ploitation, Chengdu University of Technology, Chengdu 610059, China

Online published: 2009-09-16

Abstract

Based on detailed field outcrop profiles and the core drilling observation, combining with the rock color, sedimentary structures, profile structures and log facies, the sedimentary facies of Xujiahe Formation in Maliuchang-Datachang area of southern Sichuan Basin is analyzed. There are two kinds of sedimentary facies which are braided delta and lacustrine facies. Furthermore, the braided delta is divided into braided delta plain and braided delta front sub-facies, and the lacustrine facies is divided into coastal lake and shallow lake sub-facies. The characteristics of sedimentarymicrofacies are studied. The study results are useful to detailedly understand the depositional environment during the period ofXujiahe Formation, and provide basic geologic data for oil and gas exploration in southern Sichuan Basin.

Cite this article

CHEN Mo . Sedimentary facies of Upper Triassic Xujiahe Formation in Maliuchang-Datachang area, southern Sichuan Basin[J]. Lithologic Reservoirs, 2009 , 21(3) : 70 -75 . DOI: 10.3969/j.issn.1673-8926.2009.03.014

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