Apatite geochemical and Sr-Nd isotopic insights into granitoid petrogenesis
文献类型：期刊论文
| 作者 | Sun, Jin-Feng1,2; Yang, Jin-Hui1,2; Zhang, Ji-Heng2; Yang, Yue-Heng1; Zhu, Yu-Sheng1 |
| 刊名 | CHEMICAL GEOLOGY
 |
| 出版日期 | 2021-04-05 |
| 卷号 | 566页码:12 |
| 关键词 | Petrogenesis Granite Apatite Sr-Nd isotopes |
| ISSN号 | 0009-2541 |
| DOI | 10.1016/j.chemgeo.2021.120104 |
| 英文摘要 | Apatite geochemical and Sr-Nd isotopic compositions provide robust means for constraining a wide range of geological processes in earth and planetary sciences, including magmatism, metamorphism, metasomatism, planetary geochemistry, and geochronology. Here we extend the utility of these data to fingerprint magmatic evolutionary processes and granitoid petrogenesis. Apatite grains in Early Cretaceous (ca. 130 Ma) granite from northeastern China have distinct occurrences, geochemical features, and Sr-Nd isotopic compositions, indicating their different origins. Geochemically, they can be divided into two groups as follows. Group 1 apatites mainly occur as euhedral to subhedral crystals, and have relatively low initial Sr-87/Sr-86 ratios (0.7071-0.7110), weakly negative epsilon(Nd)(t) values (-11.5 to -4.9), and variable chemical features such as positive to negative Eu anomalies and continuously variable total rare-earth element, Sr, Y, and Th contents, suggesting crystallization from host magma. Combining with petrographic observations and whole-rock geochemistry, it is indicated that Group 1 magmatic apatite records the history of magma evolution, including the crystallization history of minerals, and possibly fractionation of early crystallized minerals such as plagioclase and titanite. Group 2 apatites occur as anhedral crystals, and display variable initial Sr-87/Sr-86 ratios (0.7010-0.7506) and strongly negative epsilon(Nd)(t) values (-33.4 to -7.7) at the emplacement age of the host granite, suggesting they did not crystallize from the magma, nor were they inherited from its source. Group 2 apatites have geochemical and Sr-Nd isotopic compositions comparable with those from local Archean and Paleoproterozoic intrusive rocks, suggesting capture from wall rocks and interaction with the host melt. The occurrence of assimilated apatite grains in the host granite suggests a crustal assimilation process involved in granite petrogenesis, which is not easily identified through whole-rock geochemistry. Our results confirm that apatite in situ geochemical and Sr-Nd isotope analyses are powerful tools for elucidating the source and evolution of magma, thus providing compelling evidence for the origin of granitoids. |
| 资助项目 | Ministry of Science and Technology of the People's Republic of China[2016YFC0600109] ; National Natural Science Foundation of China[41688103] ; National Natural Science Foundation of China[42073034] |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000628895300008 |
| 出版者 | ELSEVIER |
| 资助机构 | Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/101035]  |
| 专题 | 地质与地球物理研究所_岩石圈演化国家重点实验室 |
| 通讯作者 | Yang, Jin-Hui |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, POB 9825, Beijing 100029, Peoples R China 2.Univ Chinese Acad Sci, Key Lab Computat Geodynam, 19A Yuquanlu, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Jin-Feng,Yang, Jin-Hui,Zhang, Ji-Heng,et al. Apatite geochemical and Sr-Nd isotopic insights into granitoid petrogenesis[J]. CHEMICAL GEOLOGY,2021,566:12. |
| APA | Sun, Jin-Feng,Yang, Jin-Hui,Zhang, Ji-Heng,Yang, Yue-Heng,&Zhu, Yu-Sheng.(2021).Apatite geochemical and Sr-Nd isotopic insights into granitoid petrogenesis.CHEMICAL GEOLOGY,566,12. |
| MLA | Sun, Jin-Feng,et al."Apatite geochemical and Sr-Nd isotopic insights into granitoid petrogenesis".CHEMICAL GEOLOGY 566(2021):12. |
入库方式： OAI收割
来源：地质与地球物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。