Geochemical behavior of geologic process of natural gas during mineralization of Dongsheng sandstone-type uranium deposit

Wu Bolin; Wang Jianqiang; Liu Chiyang; Wang Feiyu

doi:10.11743/ogg20060213

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Geochemical behavior of geologic process of natural gas during mineralization of Dongsheng sandstone-type uranium deposit
Vol. 27, Issue 2, Pages: 225-232(2006)
Online First：25 April 2006，

Published：2006
DOI： 10.11743/ogg20060213
稿件说明：

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DOI：

Wu Bolin, Wang Jianqiang, Liu Chiyang, et al. Geochemical behavior of geologic process of natural gas during mineralization of Dongsheng sandstone-type uranium deposit[J]. 2006, 27(2): 225-232. DOI： 10.11743/ogg20060213.

摘要

天然气包裹体的观察测试、流体温度测试以及后生蚀变形成的矿物学和地球化学性质、包裹体氢氧稳定同位素的示踪、油气充注与铀成矿年龄的对比等研究表明

东胜矿床漂白现象和绿色后生蚀变以及铀矿化的形成主要与天然气地质作用有关

天然气为上古生界来源的煤成气。主要的铀成矿还原剂是CH4等有机烃类气体及部分CO

S和H

等。因此

东胜铀矿的成因主要与天然气地质作用有关。

Abstract

Observation and testing of gas inclusion

fluid temperature

mineralogy and geochemical behaviors of minerals from epigenetic alteration

tracing of inclusion's hydrogen and oxygen stable isotopes

and correlation of oil/gas charging and uranium mineralization phases indicate that the bleaching phenomena and green epigenetic alteration

as well as uranium mineralization in Dongsheng deposit are mainly related with geologic process of natural gas.The natural gas is mainly of humic gas from the Upper Paleozoic.The main reducing agents for uranium mineralization are organic hydrocarbon gas

such as CH

and some CO

S and H

.Therefore

the genesis of Dongsheng Uranium deposit is mainly related with geologic process of natural gas.