Discovery of layered mafic-ultramafic intrusives formed in 545Ma in the Sidingheishan area, eastern Tianslian, China and its significances for tectonics anti Cu-Ni mineralization
文献类型：期刊论文
| 作者 | Xu XingWang; Qin KeZhang; San JinZhu; Wang Yu; Hui WeiDong; Kan Feng; Mao Qian; Li JinXiang; Sun He; Ma YuGuan |
| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2006-11-01 |
| 卷号 | 22期号:11页码:2665-2676 |
| 关键词 | layered mafic-ultramafic intrusives 545Ma Sidingheishan area eastern Tianshan significances for tectonics and Cu-Ni mineralization |
| ISSN号 | 1000-0569 |
| 文献子类 | Article |
| 英文摘要 | We report a new discovery of layered mafic-ultramafic intrusives intruded and broken by later mafic complex and granite in Sidingheishan area, eastern Tianshan and their occurrence, petrologic, mineralogical, REE and trace elements, and chronological features and its tectonic implication in this paper. The layered mafic-ultramafic intrusive are characterized by normal cumulate structure and consisted of two crystallization and evolution units. Composition and patterns of REE and trace elements of the layered mafic-ultramafic intrusive in Sidingheishan area are different from that of mafic complex in Sidingheishan and the mafic-ultramafic rocks in Tulaergeng area, and have some distinctive features, including lower Sigma REE, normal delta Eu anomaly, enrichment of Sr, depletion of Rb, Nb, Zr and Hf, and high Nb/U value. These Geochemical features are similar to that of Panzhihua layered gabbro and Caojiacun layered intrusive formed in rift tectonics, implying a similar formation tectonic setting. Ar-39/Ar-40 dating results of hornblende from hornblendite located in top layer of the bottom unite of the layered mafic-ultramafic intrusives, diorite form the mafic complex, and hornblende-granite show that they are formed in about 545Ma BP, 263.8Ma BP and 200.8Ma BP respectively. Occurrences of 545Ma layered mafic-ultramafic intrusives formed in rift tectonics, suggest that early Cambrian is one metallogenic period of Cu-Ni deposits related to mafic-ultramafic rocks in eastern Tianshan, and 545Ma is possible the forming time of rifts in Tianshan paleo-continent characterized by a united Proterozoic metamorphic basements in early Cambrian, and the beginning time of formation of Tianshan paleo-ocean as well. |
| WOS关键词 | DUCTILE COMPRESSIONAL ZONE ; U-PB AGE ; TIANSHAN MOUNTAINS ; DYNAMIC ORIGIN ; GEOCHEMISTRY ; XINJIANG ; PROVINCE ; COMPLEX |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000242929100005 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/66496]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Xu XingWang |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources Res, Beijing 10029, Peoples R China 2.704 Brigade Xinjiang Geoexplorat Bur Non Ferrous, Hami 839000, Peoples R China 3.China Univ Geosci, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu XingWang,Qin KeZhang,San JinZhu,et al. Discovery of layered mafic-ultramafic intrusives formed in 545Ma in the Sidingheishan area, eastern Tianslian, China and its significances for tectonics anti Cu-Ni mineralization[J]. ACTA PETROLOGICA SINICA,2006,22(11):2665-2676. |
| APA | Xu XingWang.,Qin KeZhang.,San JinZhu.,Wang Yu.,Hui WeiDong.,...&Ma YuGuan.(2006).Discovery of layered mafic-ultramafic intrusives formed in 545Ma in the Sidingheishan area, eastern Tianslian, China and its significances for tectonics anti Cu-Ni mineralization.ACTA PETROLOGICA SINICA,22(11),2665-2676. |
| MLA | Xu XingWang,et al."Discovery of layered mafic-ultramafic intrusives formed in 545Ma in the Sidingheishan area, eastern Tianslian, China and its significances for tectonics anti Cu-Ni mineralization".ACTA PETROLOGICA SINICA 22.11(2006):2665-2676. |
入库方式： OAI收割
来源：地质与地球物理研究所
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