Ar-Ar age, geochemistry and petrogenesis of Late Mesozoic volcanic rocks in the northern marginal region of Erlian basin, Inner-Mongolia
文献类型：期刊论文
| 作者 | Chen ZhiGuang1,3; Zhang LianChang1; Wu, HuaYing1,3; Zhou XinHua2; Liu Qing3 |
| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2009-02-01 |
| 卷号 | 25期号:2页码:297-310 |
| 关键词 | Early Cretaceous volcanic rocks Extensional tectonic setting Subducted ocean slab fluid metasomatism Enriched lithospheric mantle Northern margin region of Erlian basin |
| ISSN号 | 1000-0569 |
| 文献子类 | Article |
| 英文摘要 | The studied area is located in the northern margin of Erlian basin, NE of China. The Late Mesozoic volcanic rocks in this area are mainly composed of rhyolite, basalt, trachy-basalt and basaltic andesite. (40)Ar-(39)Ar dating of Chagannuoer Formation rhyolite and Bulagenhada Formation basaltic andesite give a plateau age of 141.57 +/- 1.59Ma and 129.05 +/- 1.86Ma, respectively, indicating that these volcanic rocks were formed in Early Cretaceous. The geochemical characteristics of the volcanic rocks show that the earlier Chagannuoer Formation rhyolites origined from lower crustal magma, which experienced high degrees fractional crystallization or assimilation and fractional crystallization. The magma origination of Daotenuoer Formation rhyolites were middle-upper crust or lower crustal magma suffered strong asiimilation of upper crust. Bulagenhada Formation basic volcanics origined from the metasomatized lithospheric mantle modified by previous subducted ocean slabs, and Combining previous studies, we suggest that the tectonic environment of Early Cretaceous was intense lithopheric extension and thinning, related to Northern China lithopheric thinning geological event in Late Mesozoic. |
| WOS关键词 | DA-HINGGAN MOUNTAINS ; NE CHINA ; NORTHEASTERN CHINA ; CRUSTAL GROWTH ; EASTERN CHINA ; PB ; GEOCHRONOLOGY ; GRANITES ; CRATON ; ORIGIN |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000265945400005 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/71354]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Chen ZhiGuang |
| 作者单位 | 1.Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China 2.Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen ZhiGuang,Zhang LianChang,Wu, HuaYing,et al. Ar-Ar age, geochemistry and petrogenesis of Late Mesozoic volcanic rocks in the northern marginal region of Erlian basin, Inner-Mongolia[J]. ACTA PETROLOGICA SINICA,2009,25(2):297-310. |
| APA | Chen ZhiGuang,Zhang LianChang,Wu, HuaYing,Zhou XinHua,&Liu Qing.(2009).Ar-Ar age, geochemistry and petrogenesis of Late Mesozoic volcanic rocks in the northern marginal region of Erlian basin, Inner-Mongolia.ACTA PETROLOGICA SINICA,25(2),297-310. |
| MLA | Chen ZhiGuang,et al."Ar-Ar age, geochemistry and petrogenesis of Late Mesozoic volcanic rocks in the northern marginal region of Erlian basin, Inner-Mongolia".ACTA PETROLOGICA SINICA 25.2(2009):297-310. |
入库方式： OAI收割
来源：地质与地球物理研究所
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