Sedimentary facies of Upper Triassic Xujiahe Formation in Maliuchang-Datachang area, southern Sichuan Basin
Online published: 2009-09-16
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.
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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