Noble gases in corundum megacrysts from the basalts in Changle, Shandong Province, eastern China
文献类型：期刊论文
| 作者 | Hu WenXuan; Song YuCai; Chen XiaoMing; Tao MingXin; Zhang LiuPing |
| 刊名 | CHINESE SCIENCE BULLETIN
 |
| 出版日期 | 2007-02-01 |
| 卷号 | 52期号:3页码:380-387 |
| 关键词 | corundum megacryst noble gas Changle fluid mantle source genesis |
| ISSN号 | 1001-6538 |
| DOI | 10.1007/s11434-007-0044-0 |
| 文献子类 | Article |
| 英文摘要 | This study presents noble gaseous data of the corundum megacrysts from the Cenozoic basalts in Changle, Shandong Province, eastern China. It is known that no noble gaseous data of corundum megacryst have been documented before. The He-3/He-4 ratios (1.13-7.37 Ra) of the corundums from Changle vary from atmosphere to MORB values; the Ne-20/Ne-22 (9.67-10.75) and Ne-21/Ne-22 (0.0280-0.0372) data define two linear trends on Ne three-isotope diagram, respectively, along the MFL and the correlation line between atmosphere and MORB; the Ar-38/Ar-36 (0.177-0.194) ratios, the Ar-40/Ar-36 (280.9 -404.2) ratios and the Xe128-136/Xe-132 ration with obvious Xe-129 excess are generally higher than atmospheric component, but the Ar-40/Ar-36 ratios are much closer to atomospheric ratio. The isotopic compositions of noble gases (particularly for He and Ar) of the corundums are similar to those of pyroxene, anorthoclase megacrysts, and mantle-derived xenoliths from this area, and those of mantle-derived xenoliths from several areas in eastern China. Therefore, the noble gases trapped in the corundums probably are from mantle source, representing a 'mixed fluid' produced by the interaction between the lithospheric mantle and fluids releasing from the convective plate. Both the noble gas isotopic compositions and the oxygen isotopic compositions of the solid corundums are not the characteristics of crustal source. These suggest that the corundums crystallized from mantle-derived magmas with minimal crustal contamination. |
| WOS关键词 | MANTLE ; ISOTOPE ; XENOLITHS ; MINERALS ; TERRAINS ; SURFACE ; ORIGIN |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000245845900012 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/68062]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Hu WenXuan |
| 作者单位 | 1.Nanjing Univ, Dept Earth Sci, State Key Lab Mineral Deposits Res, Nanjing 210093, Peoples R China 2.Beijing Normal Univ, Inst Resources Sci, Beijing 100875, Peoples R China 3.Chinese Acad Sci, Lanzhou Inst Geol, Key Lab Gas Geochem, Lanzhou 730000, Peoples R China 4.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu WenXuan,Song YuCai,Chen XiaoMing,et al. Noble gases in corundum megacrysts from the basalts in Changle, Shandong Province, eastern China[J]. CHINESE SCIENCE BULLETIN,2007,52(3):380-387. |
| APA | Hu WenXuan,Song YuCai,Chen XiaoMing,Tao MingXin,&Zhang LiuPing.(2007).Noble gases in corundum megacrysts from the basalts in Changle, Shandong Province, eastern China.CHINESE SCIENCE BULLETIN,52(3),380-387. |
| MLA | Hu WenXuan,et al."Noble gases in corundum megacrysts from the basalts in Changle, Shandong Province, eastern China".CHINESE SCIENCE BULLETIN 52.3(2007):380-387. |
入库方式： OAI收割
来源：地质与地球物理研究所
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