Recovery Paleosalinity in Sedimentary Environment —An example of mudstone in Shuixigou group, southwestern margin of Turpan-Hami basin

Abstract

Abstract: The paleoaqueous environment of Shuixigou group deposit in southwestern margin of Turpan-Hami basin is predicted by using Sr-Ba, B, K/Na and phosphate methods.The results show the fresh-water environment in the period of Shuixigou group with Sr/Ba ratio of less than 1 and B content ranging from 12.30ppm to 64.20ppm, and paleosalinity from 2.28‰ of J1b to 2.23‰ of J1x, averaging 2.07‰.Also, the other methods to recover paleosalinity in sedimentary environment are discussed and their limitations are presented in this paper.

Key words: paleosalinity, geochemistry, Turpan-Hami basin, sedimentary environment

CLC Number:

TE112.221

WANG Min-fang, JIAO Yang-quan, WANG Zheng-hai, YANG Qin, YANG Sheng-ke. Recovery Paleosalinity in Sedimentary Environment —An example of mudstone in Shuixigou group, southwestern margin of Turpan-Hami basin[J]. Xinjiang Petroleum Geology, 2005, 26(6): 719-722.

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