Advances and application in magnesium isotope geochemistry
文献类型：期刊论文
| 作者 | Ke Shan1,2,3; Liu ShengAo2,3,4; Li WangYe2,3,4; Yang Wei2,3,5; Teng FangZhen2,3 |
| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2011-02-01 |
| 卷号 | 27期号:2页码:383-397 |
| 关键词 | Mg Isotopes Non-traditional Stable Isotopes Isotope Fractionation |
| ISSN号 | 1000-0569 |
| 文献子类 | Article |
| 英文摘要 | As new geological tracers, Mg isotopes attract more and more attentions from international geologists. Great achievements have been made in the Mg isotope geochemistry. Recent studies have been focusing on two aspects. First, Mg isotopic compositions of the major terrestrial reservoirs and chondrites have been investigated. Chondrites and the mantle have homogeneous and similar Mg isotopic compositions, with the average delta Mg-25 values of -0. 28 +/- 0. 06 parts per thousand and -0. 25 +/- 0. 07 parts per thousand, respectively. By contrast, the upper continental crust and hydrosphere are highly heterogeneous, with delta Mg-26 values varying from -4. 84 parts per thousand to +0. 92 parts per thousand and from -2. 93 parts per thousand to +1.13 parts per thousand, respectively. Second, studies on behaviors of Mg isotopes during geological and physicochemical processes suggest that: () large Mg isotope fractionation occurs during continental weathering with heavy Mg isotopes retained in the weathered products and light Mg isotopes released into the hydrosphere; (2) equilibrium Mg isotope fractionation during magma differentiation is limited; (3) significant kinetic Mg isotope fractionation occurs during chemical and thermal diffusion at high temperatures. Based on these studies, Mg isotopes have been used to trace accretion of the Earth and recycling of crustal materials, and, in the near future, [nay potentially be applied to tracing chemical evolution of the continental crust and be used as geological thermometers. |
| WOS关键词 | UPPER CONTINENTAL-CRUST ; COLLECTOR ICP-MS ; SILICATE MELTS ; WEATHERING PROCESSES ; CHEMICAL DIFFUSION ; THERMAL-DIFFUSION ; ALLENDE METEORITE ; SORET DIFFUSION ; SOLAR-SYSTEM ; FRACTIONATION |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000288468500003 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/73520]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Ke Shan |
| 作者单位 | 1.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Beijing 100083, Peoples R China 2.Univ Arkansas, Isotope Lab, Dept Geosci, Fayetteville, AR 72701 USA 3.Univ Arkansas, Arkansas Ctr Space & Planetary Sci, Fayetteville, AR 72701 USA 4.Univ Sci & Technol China, CAS Key Lab Crust Mantle Mat & Environm, Sch Earth & Space Sci, Hefei 230026, Peoples R China 5.Chinese Acad Sci, State Key Lab Lithospher Evolut, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ke Shan,Liu ShengAo,Li WangYe,et al. Advances and application in magnesium isotope geochemistry[J]. ACTA PETROLOGICA SINICA,2011,27(2):383-397. |
| APA | Ke Shan,Liu ShengAo,Li WangYe,Yang Wei,&Teng FangZhen.(2011).Advances and application in magnesium isotope geochemistry.ACTA PETROLOGICA SINICA,27(2),383-397. |
| MLA | Ke Shan,et al."Advances and application in magnesium isotope geochemistry".ACTA PETROLOGICA SINICA 27.2(2011):383-397. |
入库方式： OAI收割
来源：地质与地球物理研究所
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