Abstract
KEYWORD: detrital component characteristics; provenance analysis; Triassic. ABSTRACT: Triassic in the western Tabei uplift is detrital sedimentary. Based on the data of the conglomerate, sandstone framework components and heavy mineral to analyze the Triassic of research area, the result shows that the source rocks are metamorphic rocks, magmatic rocks and sedimentary rocks, whose sources come from Xiqiu Uplift and Luntai Uplift. The western of research area is magmatic and sedimentary rock deposit zone, where is mainly influenced by the Xiqiu Uplift. The middle part of research area is metamorphic and sedimentary rock deposit zone where is mainly influenced by the Xiqiu Uplift and Luntai Uplift. The eastern of research area is metamorphic, sedimentary and magmatic rock deposit zone where is mainly influenced by the Luntai Uplift. The proximal clastic deposits are mainly influenced by the hydrodynamic conditions, palaeohigh and tectonization, so provenance has the characteristics of region and multiple
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