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Mineralogical and geochemical evidence for biogenic and petroleum-related uranium mineralization in the Qianjiadian deposit, NE China

文献类型：期刊论文

作者Zhao, Long1,2,3,6; Cai, Chunfang1,2,5; Jin, Ruoshi3,4; Li, Jianguo3,4; Li, Hongliang7; Wei, Jialin3,4; Guo, Hu3,4; Zhang, Bo3,4
刊名ORE GEOLOGY REVIEWS
出版日期2018-10-01
卷号101页码:273-292
关键词Sandstone-hosted uranium deposit Bacterial sulfate reduction Biomineralization Pyrite Qianjiadian deposit
ISSN号0169-1368
DOI10.1016/j.oregeorev.2018.07.025
英文摘要The sandstone-hosted Qianjiadian uranium deposit, hosted in the Upper Cretaceous Yaojia Formation in the Qianjiadian area, Songliao Basin, NE China, has been studied for over twenty years. However, there exists debate on whether mineralization fluid is low-temperature groundwater in favor of biogenic mineralization or diabaserelated magmatic hydrothermal fluid for this deposit and other adjacent geologically linked sandstone-hosted uranium deposits (Baixingtu, Baolongshan and Huitianzhao deposits) in the North China. This study provided new data from petrographic and geochemical analyses, geochronology of uranium minerals (the EMPA chemical dating method) and petroleum hydrocarbon biomarkers in host sandstones. Two types of host sandstone were recognized. In calcareous sandstones, pitchblende coexists with colloform pyrite and poikilitic calcite cement while quartz and feldspars were extensively corroded. In non-calcareous sandstones, coffinite coexists with colloform pyrite and only feldspars were slightly corroded. This suggests that pitchblende formed in high pH (pH > similar to 9) fluid, while the pH of ore-forming fluid for coffinite was lower (pH = 7-9). Besides, EMPA chemical dating revealed two stages of uranium mineralization. Stage-A occurred in 43-28 Ma with pitchblende as the only uranium mineral species. Stage-B occurred in 19-3 Ma with the formation of both pitchblende and coffinite. The uranium mineralization was biogenic under low-temperature groundwater condition and thus not from a diabase-related mafic magmatic hydrothermal fluid based on the following lines of evidence: (i) some coffinite occurs as phosphorus-rich microorganism-like microspherules structure; (ii) pyrite aggregates were generated from bacterial sulfate reduction as indicated by the S34S values as low as -41.4%o; (iii) calcite cement in calcareous sandstone contains only single phase aqueous inclusions, and have delta C-13 values as low as- 11.2 parts per thousand, indicating that part of the carbon was derived from organic matter oxidation; (iv) the organic matter oxidation is further supported by hydrocarbons extracted from petroleum inclusions within calcite cement, showing occurrence of C-26-C-31 17 alpha, 21 beta 25-norhopanes, typically resulting from heavy biodegradation.
WOS关键词THERMOCHEMICAL SULFATE REDUCTION ; SOUTHERN SONGLIAO BASIN ; SULFUR ISOTOPE FRACTIONATION ; ELECTRON-MICROPROBE ANALYSES ; BANDED IRON-FORMATION ; REDUCING BACTERIA ; FLUID INCLUSIONS ; ORGANIC-MATTER ; NW CHINA ; HYDROTHERMAL CONDITIONS
资助项目National Basic Research Program of China[2015CB453000] ; Geological Survey Project of China[DD20160128-02-03] ; Key Project of the National Natural Science Foundation of China[41730424]
WOS研究方向Geology ; Mineralogy ; Mining & Mineral Processing
语种英语
WOS记录号WOS:000448092400014
出版者ELSEVIER SCIENCE BV
资助机构National Basic Research Program of China ; National Basic Research Program of China ; Geological Survey Project of China ; Geological Survey Project of China ; Key Project of the National Natural Science Foundation of China ; Key Project of the National Natural Science Foundation of China ; National Basic Research Program of China ; National Basic Research Program of China ; Geological Survey Project of China ; Geological Survey Project of China ; Key Project of the National Natural Science Foundation of China ; Key Project of the National Natural Science Foundation of China ; National Basic Research Program of China ; National Basic Research Program of China ; Geological Survey Project of China ; Geological Survey Project of China ; Key Project of the National Natural Science Foundation of China ; Key Project of the National Natural Science Foundation of China ; National Basic Research Program of China ; National Basic Research Program of China ; Geological Survey Project of China ; Geological Survey Project of China ; Key Project of the National Natural Science Foundation of China ; Key Project of the National Natural Science Foundation of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/89135]  
专题地质与地球物理研究所_中国科学院油气资源研究重点实验室
通讯作者Cai, Chunfang; Jin, Ruoshi
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China
2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
3.China Geol Survey, Key Lab Uranium Mineral Resources, Tianjin 300170, Peoples R China
4.China Geol Survey, Tianjin Ctr, Tianjin 300170, Peoples R China
5.Yangtze Univ, Key Lab Explorat Technol Oil & Gas Resources, Minist Educ, Wuhan 430100, Hubei, Peoples R China
6.Mianyang Teachers Coll, Coll Resources & Environm Engn, Mianyang 621000, Sichuan, Peoples R China
7.China Natl Petr Corp, New Energy Dev Co Liaohe Oilfield, Panjin 124010, Liaoning, Peoples R China
推荐引用方式
GB/T 7714		 Zhao, Long,Cai, Chunfang,Jin, Ruoshi,et al. Mineralogical and geochemical evidence for biogenic and petroleum-related uranium mineralization in the Qianjiadian deposit, NE China[J]. ORE GEOLOGY REVIEWS,2018,101:273-292.
APA Zhao, Long.,Cai, Chunfang.,Jin, Ruoshi.,Li, Jianguo.,Li, Hongliang.,...&Zhang, Bo.(2018).Mineralogical and geochemical evidence for biogenic and petroleum-related uranium mineralization in the Qianjiadian deposit, NE China.ORE GEOLOGY REVIEWS,101,273-292.
MLA Zhao, Long,et al."Mineralogical and geochemical evidence for biogenic and petroleum-related uranium mineralization in the Qianjiadian deposit, NE China".ORE GEOLOGY REVIEWS 101(2018):273-292.

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来源：地质与地球物理研究所

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