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Sedimentary Facies and Its Paleoclimate Significance for the Upper Jurassic Penglaizhen Formation in Mingzhu Town, Shehong, Sichuan Province
详细信息   
摘要

Study of sedimentary facies indicates that the Penglaizhen Formation in the National Woodstone Geopark, Shehong is composed of purple, purplish gray, grayish green mudstone, fine-grained arkose and siltstone which may be divided into lacustrine, fluvial facies and iron oxide soil. The lacustrine facies may be subdivided into deep lake, coastal and shallow lake subfacies and fluvial facies may be subdivided into channel, levee, crevasse-splay, floodplain subfacies. The sedimentary facies indicates a semiarid climate.

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