Shrimp dating and nd-sr isotopic tracing of kangguertage ophiolite in eastern tianshan, xinjiang
文献类型：期刊论文
| 作者 | Li WenQian1,2; Ma HuaDong1,4; Wang Ran3; Wang He1; Xia Bin3 |
| 刊名 | Acta petrologica sinica
 |
| 出版日期 | 2008-04-01 |
| 卷号 | 24期号:4页码:773-780 |
| 关键词 | Ssz-type ophiolite Shrimp dating Nd-sr isotopes Kuangguertage Eastern tianshan |
| ISSN号 | 1000-0569 |
| 通讯作者 | Li wenqian(gzwqli@gig.ac.cn) |
| 英文摘要 | The kangguertage ophiolite in eastern tianshan mountain is located in the west to tuwu-yandong copper ore-belt and marks the aibihu-kangguertage suture zone between the hasakestan plate in the north and tarim plate in the south. the ophiolte contact in fault with carbonic strata and form an east-west extension of tectonic slices distributed in bilateral kangguertage major fault. shrimp zircon u-pb dating for the gabbros from kangguertage ophiolite yields an age of 494 +/- 10ma. nd-sr isotopic components of the gabbros, diabases, basalts, plagioclase granites and keratophyres show the variety of epsilon(nd)(t) value from + 5. 7 to + 10. 5, which are consistent with the epsilon(nd) (t) value of modern oceanic island-arc volcanic rocks. the ((87)sr/(86)sr)(i) values range from 0. 703475 to 0. 704923 and slightly higher than those of typical fresh modern mid-ocean ridge basalts. thus, the nd-sr isotopic characteristics indicate that the kangguertage ophiolite belongs to ssz-type and are similar to the ophiolites in zhungeer area. in addition, the magma was probably derived from a depleted upper mantle reservoir and didn't suffer from the contamination of the continental material. the field geotectonics, formation age and nd-sr isotopic component suggest that the area north of the kangguertage major fault probably belongs to the zhungeer plate tectonically. |
| WOS关键词 | U-PB AGES ; TECTONIC EVOLUTION ; CONTINENTAL-CRUST ; ORIGIN ; PETROGENESIS ; NEODYMIUM ; CHINA ; CONSTRAINTS ; STRONTIUM ; ISLANDS |
| WOS研究方向 | Geology |
| WOS类目 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000256696700016 |
| 出版者 | SCIENCE CHINA PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2385108 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Li WenQian |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Metallogen Dynam, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China 2.China Nonferrous Met Fesource Geol Survey, Beijing 100012, Peoples R China 3.Chinese Acad Sci, Key Lab Marginal Sea Geol, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China 4.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li WenQian,Ma HuaDong,Wang Ran,et al. Shrimp dating and nd-sr isotopic tracing of kangguertage ophiolite in eastern tianshan, xinjiang[J]. Acta petrologica sinica,2008,24(4):773-780. |
| APA | Li WenQian,Ma HuaDong,Wang Ran,Wang He,&Xia Bin.(2008).Shrimp dating and nd-sr isotopic tracing of kangguertage ophiolite in eastern tianshan, xinjiang.Acta petrologica sinica,24(4),773-780. |
| MLA | Li WenQian,et al."Shrimp dating and nd-sr isotopic tracing of kangguertage ophiolite in eastern tianshan, xinjiang".Acta petrologica sinica 24.4(2008):773-780. |
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来源：中国科学院大学
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