Geological and geochemical features and geochronology of the kayizi porphyry molybdenum deposit in the northern belt of western kunlun, nw china
文献类型：期刊论文
| 作者 | Liu JianPing1,2; Wang He1; Li SheHong1,2; Tong LaiXi1; Ren GuangLi1,2 |
| 刊名 | Acta petrologica sinica
 |
| 出版日期 | 2010-10-01 |
| 卷号 | 26期号:10页码:3095-3105 |
| 关键词 | Geochemistry Geochronology Porphyry molybdenum deposit Kayizi Northern belt of western kunlun Nw china |
| ISSN号 | 1000-0569 |
| 通讯作者 | Liu jianping(liujianping303@163.com) |
| 英文摘要 | The kayizi mo deposit is a typical porphyry deposit in the northern belt of western kunlun. the mo mineralization occurs in the edge of a granodiorite intrusion, and consists of two mineral belts in the southern and northern sides, in which the biggest ore body (no. 1) is 400m long and 140m wide. the ore is dominated by disseminated and spot-like molybdenite, minor pyrite and chalcopyrite, with mo grade of 0. 04% similar to 1. 53%, and some up to 10% similar to 15%. the country rock alteration displays distinctive porphyry deposit alteration assemblages, including k-feldspathisation, pyrite-sericitization, and propylition. the petrochemical analyses suggest that the mo-bearing granodiorites contain high sio(2), al(2)o, k(2)o and na(2)o, and low cao and tio(2), belonging to high-k calc-alkaline series. the trace elements show enrichment in large ion lithophile element (lile), and a depletion in high field strength element (hfse) and heavy rare earth element (hree), with nb and ta negative anomalies, compatible with the geochemical features of subduction magma, suggesting the petrogenesis associated with subduction. the zircon u-pb (la-icpms) dating yields the (206)pb/(238)u ages of 250. 7 +/- 4. 7ma (mswd =1. 6). the re-os model ages of 254. 4 +/- 1. 9ma,257. 0 +/- 3. 4ma, and 258. 5 +/- 2. 0ma, yielded from three molybdenites, support that the diagenesis and mineralization occurred in the late permian to early triassic. combining regional geological evolution, we considered in this paper that the kayizi porphyry mo deposit may have been formed as a result of the paleo tethys subduction to the tarim plate in the continental margin arc. |
| WOS关键词 | SYSTEM ; ROCKS ; NB/TA |
| WOS研究方向 | Geology |
| WOS类目 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000284450800021 |
| 出版者 | SCIENCE PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2410668 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Liu JianPing |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu JianPing,Wang He,Li SheHong,et al. Geological and geochemical features and geochronology of the kayizi porphyry molybdenum deposit in the northern belt of western kunlun, nw china[J]. Acta petrologica sinica,2010,26(10):3095-3105. |
| APA | Liu JianPing,Wang He,Li SheHong,Tong LaiXi,&Ren GuangLi.(2010).Geological and geochemical features and geochronology of the kayizi porphyry molybdenum deposit in the northern belt of western kunlun, nw china.Acta petrologica sinica,26(10),3095-3105. |
| MLA | Liu JianPing,et al."Geological and geochemical features and geochronology of the kayizi porphyry molybdenum deposit in the northern belt of western kunlun, nw china".Acta petrologica sinica 26.10(2010):3095-3105. |
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来源：中国科学院大学
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