Primary Study on the Sediment Structures in Blackshaleseries Deposits of the Basal Cambrian, Guizhou Province

Abstract

Abstract:

Blackshaleseries deposits related to hydrothermal sedimentation were widely distributed in the basal Cambrian, southwest of China. According to the study on micro and macro structures of three different types of blackshaleseries deposit belts, namely NiMo ore deposit belt, V ore deposit belt and barite deposit belt, sedimentary structural features are concluded. Specifically, sedimentary structures and structures series that formed in extravasation, in pneumatohydrothermal process and in colloidalbiochemical process, as well as some penecontemporaneous sedimentary structures, were found and determined. As a result, comparison analysis was made on the differences and similarities of the sedimentary structures among those three deposit belts, which is of importance for mineralization theories related to deposits of this type.

Key words: sedimentary structure, blackshaleseries, Cambrian;Guizhou

WEI Fu-Rui, YANG Rui-Dong, GAO Jun-Bei, WANG Wei. Primary Study on the Sediment Structures in Blackshaleseries Deposits of the Basal Cambrian, Guizhou Province[J]. Geoscience, 2012, 26(4): 673-681.

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