Metamorphic P-T-t evolution of Paleoproterozoic schist-hosted Cu deposits in the Zhongtiao Mountains, North China Craton: Retrograde ore formation during sluggish exhumation
文献类型：期刊论文
| 作者 | Qiu, Zheng-Jie1,2; Fan, Hong-Rui1,2; Liu, Xuan1,3; Yang, Kui-Feng1,2; Hu, Fang-Fang1,2; Cai, Ya-Chun1 |
| 刊名 | PRECAMBRIAN RESEARCH
 |
| 出版日期 | 2017-10-01 |
| 卷号 | 300页码:59-77 |
| 关键词 | Nano-SIMS U-Pb dating Hydrothermal monazite Metamorphic P-T-t-m path Retrograde ore formation Exhumation Zhongtiao Mountains |
| ISSN号 | 0301-9268 |
| DOI | 10.1016/j.precamres.2017.08.014 |
| 文献子类 | Article |
| 英文摘要 | The stratabound Cu deposits in the Zhongtiao Mountains district contain good records about the Precambrian tectonic evolution in the central North China Craton. Five stages of metamorphic and metallogenic processes are identified and the P-T conditions are constrained using mineral geothermobarometry and P-T pseudosection. Results revealed a prograde metamorphism (stage M - 1) from 565 to 630 degrees C, and peak metamorphism of 6.5 +/- 0.5 kbar and 610 +/- 20 degrees C (stage M - 2). The post-peak metamorphism consisted of a continued retrogression (stage M - 3) at 545 +/- 5 degrees C and 6.0 +/- 0.1 kbar, and Cu mineralizations (stages M - 4 and M - 5). Two distinct mineral assemblages of arsenopyrite-pyrrhotite-pyrite-chalcopyrite and bomite-chalcopyrite-parkerite- wittichenite-bismuth are observed in veinlets. The Cu mineralization occurred from 446 to 341 degrees C at a pressure of similar to 5.0 to 4.4 kbar. We obtained laser ablation ICPMS monazite U-Pb ages of 1881 +/- 15 Ma and 1863 +/- 17 Ma for staurolite schist and mineralized veins, respectively. A Nano-secondary ion mass spectrometer zircon U-Pb age of 1815 +/- 32 Ma for fluid-modified zircon rims from host schist. These ages are interpreted as the timing for the stages M - 2, M - 4 and M - 5, respectively. These results define a clockwise P-T-t path that displays nearly parallel prograde and retrograde trajectory (Franciscan type). The retrograde portion is similar to near-isobaric cooling (IBC) stage, which supports a relatively slow exhumation following a continental collision. It is proposed that the ore materials were mainly derived from the host rocks, which might have been pre-enriched. Cu mineralization formed during the retrograde cooling stage at greenschist fades, and was likely related to a post-orogenic sluggish exhumation at a rate of 0.31-0.05 mm/yr. |
| WOS关键词 | LIAO-JI BELT ; TEMPERATURE TIME PATHS ; U-PB ; REGIONAL METAMORPHISM ; HYDROTHERMAL MONAZITE ; SPHALERITE GEOBAROMETRY ; ISOTOPIC COMPOSITIONS ; TECTONIC IMPLICATIONS ; ZIRCON GEOCHRONOLOGY ; CONTINENTAL-CRUST |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000412252600005 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | Natural Science Foundation of China(41402083) ; Ministry of Science and Technology of People's Republic of China(2016YFC0600105) ; Natural Science Foundation of China(41402083) ; Ministry of Science and Technology of People's Republic of China(2016YFC0600105) ; Natural Science Foundation of China(41402083) ; Ministry of Science and Technology of People's Republic of China(2016YFC0600105) ; Natural Science Foundation of China(41402083) ; Ministry of Science and Technology of People's Republic of China(2016YFC0600105) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/61938]  |
| 专题 | 地质与地球物理研究所_中国科学院矿产资源研究重点实验室 |
| 通讯作者 | Fan, Hong-Rui |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China 2.Univ Chinese Acad Sci, Coll Earth Sci, Beijing 100049, Peoples R China 3.Western Washington Univ, Dept Geol, Bellingham, WA 98225 USA |
| 推荐引用方式 GB/T 7714 | Qiu, Zheng-Jie,Fan, Hong-Rui,Liu, Xuan,et al. Metamorphic P-T-t evolution of Paleoproterozoic schist-hosted Cu deposits in the Zhongtiao Mountains, North China Craton: Retrograde ore formation during sluggish exhumation[J]. PRECAMBRIAN RESEARCH,2017,300:59-77. |
| APA | Qiu, Zheng-Jie,Fan, Hong-Rui,Liu, Xuan,Yang, Kui-Feng,Hu, Fang-Fang,&Cai, Ya-Chun.(2017).Metamorphic P-T-t evolution of Paleoproterozoic schist-hosted Cu deposits in the Zhongtiao Mountains, North China Craton: Retrograde ore formation during sluggish exhumation.PRECAMBRIAN RESEARCH,300,59-77. |
| MLA | Qiu, Zheng-Jie,et al."Metamorphic P-T-t evolution of Paleoproterozoic schist-hosted Cu deposits in the Zhongtiao Mountains, North China Craton: Retrograde ore formation during sluggish exhumation".PRECAMBRIAN RESEARCH 300(2017):59-77. |
入库方式： OAI收割
来源：地质与地球物理研究所
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