Some problems on the Xigaze ophiolite
文献类型：期刊论文
| 作者 | Zhang Qi |
| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2015 |
| 卷号 | 31期号:1页码:37-46 |
| 关键词 | Xigaze Ophiolite Dike swarms Sill swarms Flow swarms Continental lithospheric mantle |
| ISSN号 | 1000-0569 |
| 英文摘要 | The Xigaze ophiolite is the most famous ophiolite in China and there are some debates in the academia about a number of phenomena. In this paper, the author discussed some phenomena in Xigaze ophiolite and how to think about these contradictions. For example, (1) Are there sheeted dike swarms in Xigaze ophiolite? Are there sheeted sill swarms? The author thinks there are sheeted dike swarms in Xigaze ophiolite. The sill swarms should be sheeted flow swarms because of the sill swarms never exist in plate spreading ridge. Sheeted flow swarms located in the lower part of the basalt unit rather than another independent unit. (2) It is a question to be considered whether the Xigaze ophiolite is all ophiolite. The rock assemblage and its background of the east and west part of the Yalung Zangbo is obvious different from the Xigaze ophiolite, some of them may not ophiolite. (3) The ophiolite research may enter a critical period since Penrose meeting in 1972. This paper reviews the definition and its significance in construction of ophiolite, points out that the definition of ophiolite is still applicable in the 1972 Penrose meeting. The ophiolite can be summarized as oceanic crust + the mantle, the oceanic crust is young, which comes from spreading ridge. The mantle is oceanic lithosphere mantle, may retained some mark of the ancient lithospheric mantle. The ophiolite originated in plates spreading ridge, this is the only tectonic meaning of the ophiolite. (4) Many basic views of Xigaze ophiolite are mainly from French scholars, such as sill swarms, slow - spreading ridge theory. But, it is to be considered whether these views are right. Xigaze ophiolite has advantageous conditions, we should make proper use of this condition, make our contributions to global ophiolite research. |
| 语种 | 英语 |
| WOS记录号 | WOS:000349509300002 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/86770]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Zhang Qi |
| 作者单位 | Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang Qi. Some problems on the Xigaze ophiolite[J]. ACTA PETROLOGICA SINICA,2015,31(1):37-46. |
| APA | Zhang Qi.(2015).Some problems on the Xigaze ophiolite.ACTA PETROLOGICA SINICA,31(1),37-46. |
| MLA | Zhang Qi."Some problems on the Xigaze ophiolite".ACTA PETROLOGICA SINICA 31.1(2015):37-46. |
入库方式： OAI收割
来源：地质与地球物理研究所
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