Discovery of Late Paleozoic retrograded eclogites from the middle part of the northern margin of North China Craton
文献类型：期刊论文
| 作者 | Ni, ZY; Zhai, MG; Wang, RM; Tong, YN; Shu, GM; Hai, XL |
| 刊名 | CHINESE SCIENCE BULLETIN
 |
| 出版日期 | 2004-03-01 |
| 卷号 | 49期号:6页码:600-606 |
| 关键词 | Retrograded Eclogite Late Paleozoic Paleo-asian Oceanic Crust Hongqiyingzi Group Middle Part Of The norThern Margin Of North China Craton |
| ISSN号 | 1001-6538 |
| DOI | 10.1360/03.wd0445 |
| 文献子类 | Article |
| 英文摘要 | The retrograded eclogites have been discovered in the middle part of the northern margin of the North China Craton, which occur as lens or boudin within biotite-plagioclase gneisses in Paleoproterozoic Hongqiyingzi Group. The peak eclogite facies (P > 1.40-1.50 GPa, T = 680 -730 degreesC) mineral assemblage is composed of garnet, omphacite and rutile ( quartz), which was overprinted by the granulite facies mineral assemblage of vermicular symplectite of sodic clinopyroxene and plagioclase which replaced the precursory omphacite, and then amphibolite facies retrograded minerals with characterization of Amp+PI kelyphitic rim and symplectite, and amphibole replaced clinopyroxene. The protolith of retrograded eclogites is oceanic basalt formed at 438 +/- 11 Ma. The peak eclogite facies metamorphic age of the retrograded eclogite is 325 +/- 4 Ma. These relict eclogites may be formed by the subduction of Paleo-Asian oceanic crust beneath the North China Craton during Late Paleozoic. The discovery of relict eclogite in this paper provides a new insight into farther understanding of tectonic evolution of the northern margin of the North China Craton, and the relationship between the Paleo-Asian Ocean and the North China Craton. |
| WOS关键词 | GARNET ; GEOTHERMOMETER ; CALIBRATION |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000220723800013 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/64748]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Ni, ZY |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Chengdu Univ Sci & Technol, Coll Earth Sci, Chengdu 610059, Peoples R China 3.Peking Univ, Sch Earth & Space Sci, Beijing 100871, Peoples R China 4.Chinese Acad Geol Sci, Inst Geol, Beijing 100037, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ni, ZY,Zhai, MG,Wang, RM,et al. Discovery of Late Paleozoic retrograded eclogites from the middle part of the northern margin of North China Craton[J]. CHINESE SCIENCE BULLETIN,2004,49(6):600-606. |
| APA | Ni, ZY,Zhai, MG,Wang, RM,Tong, YN,Shu, GM,&Hai, XL.(2004).Discovery of Late Paleozoic retrograded eclogites from the middle part of the northern margin of North China Craton.CHINESE SCIENCE BULLETIN,49(6),600-606. |
| MLA | Ni, ZY,et al."Discovery of Late Paleozoic retrograded eclogites from the middle part of the northern margin of North China Craton".CHINESE SCIENCE BULLETIN 49.6(2004):600-606. |
入库方式： OAI收割
来源：地质与地球物理研究所
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