Tracking Crystal-Melt Segregation and Accumulation in the Intermediate Magma Reservoir
文献类型：期刊论文
| 作者 | Ma, Jian-Feng1,3,4; Wang, Xiao-Lei2; Yang, Alexandra Yang1,4; Zhao, Tai-Ping1,4 |
| 刊名 | GEOPHYSICAL RESEARCH LETTERS
 |
| 出版日期 | 2023-05-28 |
| 卷号 | 50期号:10页码:10 |
| 关键词 | crystal accumulation crystal-melt segregation intermediate intrusions magmatic water |
| ISSN号 | 0094-8276 |
| DOI | 10.1029/2022GL102540 |
| 英文摘要 | The genesis of intermediate intrusions is highly controversial, and one of the hot topics is whether they represent frozen melts or cumulates in the evolution of magmatic systems. Distinguishing accumulation from crystallization melt differentiated along the liquid line of descent is the key issue. The Paleoproterozoic intermediate intrusions in southern North China Craton provide an excellent case to decipher this issue. Multiple lines of evidence, including mineral textures, geochemistry as well as alphaMELTS modeling, indicate disequilibrium between whole-rock and minerals, with melt extraction occurring at temperatures of 760 degrees-820 degrees C and with 10-40 wt.% of trapped melts. Effective water storage, revealed by amphibole and clinopyroxene hygrometers, plays a crucial role in promoting crystal-melt segregation in pluton-sized reservoirs in the upper crust. This study demonstrates that the accumulation in intermediate magmas can be identified even without evident complementary initial and extracted melts and provides deep insights into the genesis of intermediate continental crust. |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000999866100001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/74258]  |
| 专题 | 中国科学院矿物学与成矿学重点实验室 |
| 通讯作者 | Zhao, Tai-Ping |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Geochem, Key Lab Mineral & Metallogeny, Guangzhou, Peoples R China 2.Nanjing Univ, Sch Earth Sci & Engn, State Key Lab Mineral Deposits Res, Nanjing, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China 4.CAS Ctr Excellence Deep Earth Sci, Guangzhou, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma, Jian-Feng,Wang, Xiao-Lei,Yang, Alexandra Yang,et al. Tracking Crystal-Melt Segregation and Accumulation in the Intermediate Magma Reservoir[J]. GEOPHYSICAL RESEARCH LETTERS,2023,50(10):10. |
| APA | Ma, Jian-Feng,Wang, Xiao-Lei,Yang, Alexandra Yang,&Zhao, Tai-Ping.(2023).Tracking Crystal-Melt Segregation and Accumulation in the Intermediate Magma Reservoir.GEOPHYSICAL RESEARCH LETTERS,50(10),10. |
| MLA | Ma, Jian-Feng,et al."Tracking Crystal-Melt Segregation and Accumulation in the Intermediate Magma Reservoir".GEOPHYSICAL RESEARCH LETTERS 50.10(2023):10. |
入库方式： OAI收割
来源：广州地球化学研究所
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。