Occurrence and concentration of uranium in the hydrocarbon source rocks of chang 7 member of yanchang formation, ordos basin
文献类型：期刊论文
| 作者 | Qin Yan1; Zhang WenZheng2; Peng PingAn3; Zhou ZhenJu1,4 |
| 刊名 | Acta petrologica sinica
 |
| 出版日期 | 2009-10-01 |
| 卷号 | 25期号:10页码:2469-2476 |
| 关键词 | Uranium U-rich hydrocarbon source rocks Chang-7 member of yanchang formation Uranium occurrence Ordos basin |
| ISSN号 | 1000-0569 |
| 通讯作者 | Qin yan(qinyan@gig.ac.cn) |
| 英文摘要 | The seventh member (abbreviated to chang-7) of the yanchang formation of i,ate triassic in the ordos basin is a lacustrume suite of u-rich hydrocarbon source rocks. these rocks within the chang-7 member are rich in frambodial pyrite, organic matter laminas and collophane. in this paper the uranium occurrence in the rocks of the chang-7 member were studied using electron microscopy, la-icpms, sequential extraction procedure and a-track etching. the results show that in the source rocks more than 50% uranium occurs in collophane, and more than 20% uranium is absorbed in organic matter. collophane plays an important role in the enrichment of uranium. the petrochemical parameters show that the rocks of the chang-7 member were formed in anoxic sedimentary environment. frequent volcanic eruption in the early deposition of the chang-7 member provided abundant uranium for the u-rich hydrocarbon source rocks. in the anoxic sedimentary environment during the early diagenetic stage, uranium migrated from tuffs to black shale of the chang-7 member and enriched in collophanes and organic matter laminas as a result of exchange between bottom and interstitial waters. in a word, the anoxic deposition environment, the u-abundant tuffs, and the high contents of organic matter and collophane led to the enrichment of uranium in the u-rich hydrocarbon source rocks of the chang-7 member in the ordos basin. |
| WOS关键词 | CARBONIFEROUS BLACK SHALE |
| WOS研究方向 | Geology |
| WOS类目 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000271670400015 |
| 出版者 | SCIENCE PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2394962 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Qin Yan |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Metallogen Dynam, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China 2.Changqing Oilfield Co, Res Inst Petr Explorat & Dev, PetroChina, Xian 710018, Peoples R China 3.Chinese Acad Sci, State Key Lab Organ Geochem, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China 4.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qin Yan,Zhang WenZheng,Peng PingAn,et al. Occurrence and concentration of uranium in the hydrocarbon source rocks of chang 7 member of yanchang formation, ordos basin[J]. Acta petrologica sinica,2009,25(10):2469-2476. |
| APA | Qin Yan,Zhang WenZheng,Peng PingAn,&Zhou ZhenJu.(2009).Occurrence and concentration of uranium in the hydrocarbon source rocks of chang 7 member of yanchang formation, ordos basin.Acta petrologica sinica,25(10),2469-2476. |
| MLA | Qin Yan,et al."Occurrence and concentration of uranium in the hydrocarbon source rocks of chang 7 member of yanchang formation, ordos basin".Acta petrologica sinica 25.10(2009):2469-2476. |
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来源：中国科学院大学
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