Knowledge Management System Of Institute of Oceanology, Chinese Academy of Sciences
Early hydrosphere-rock interactions and intra-crustal recycling recorded by remarkably high-delta O-18 Mesoarchean granitoids in the Sulu orogenic belt, eastern China | |
Liu, Jianhui1; Ding, Zhengjiang2; Chen, Hui1; Wang, Xiangjian3; Liu, Fulai1 | |
2021-08-15 | |
发表期刊 | PRECAMBRIAN RESEARCH |
ISSN | 0301-9268 |
卷号 | 362页码:13 |
通讯作者 | Liu, Jianhui(liujianhui1999@163.com) |
摘要 | When, why and how global plate tectonics were initiated, as well as secular changes of plate tectonics over time are fundamental issues in the earth sciences. In this study, we present a combined U-Pb, Hf and O isotope dataset for complex zircons from the high-grade granitic (TTG) gneisses of the Haiyangsuo complex in the Sulu orogenic belt, eastern China. This combined dataset reveals that the granitoids formed by at least ca. 3.22, 2.81, 2.70 and 2.58 Ga and recorded multiple metamorphic thermal events that occurred at ca. 3.05, 2.60-2.50 and 1.93-1.85 Ga. The 3.22 and 2.58 Ga granitoids have negative epsilon(Hf)(t) values (averages of -2.08 and -10.81, respectively) and were derived from remelting of evolved Eoarchean crust, in combination of 3.47 Ga inherited zircon, reflecting occurrence of matured felsic continent crust in the Paleoarchean, whereas the 2.81 and 2.70 Ga granitoids show positive eHf(t) values (averages of + 4.32 and + 2.23, respectively) and formed by remelting of juvenile crust derived from depleted mantle at ca. 3.0 Ga. The 3.22, 2.70 and 2.58 Ga granitoids have mantle-like or slightly enriched zircon delta O-18 values (averages of 5.53 +/- 0.15, 5.41 +/- 0.18 and 6.10 +/- 0.22 parts per thousand, respectively). However, the 2.81 Ga granitoid displays remarkably high zircon delta O-18 values ranging from 9.65 to 7.02 parts per thousand with an average of 8.48 +/- 0.29 parts per thousand (1 SD), this demonstrates occurrences of early hydrosphere-rock interactions and intra-crustal recycling in the Mesoarchean. Synthetically, here we propose the following tectonic model for the formation of the high-delta O-18 Mesoarchean granitoids: (1) Generation of voluminous high-density lower crust along with the formation of early felsic continent dominated by TTGs; (2) gravity-driven subduction of denser oceanic crust relative to continental crust induced by delamination of high-density lower crust together with lithospheric mantle; and (3) subsequently partial melting of altered high-delta O-18 hydrated oceanic crust caused by delamination-induced hot asthenospheric mantle upwelling to form the high-delta O-18 Mesoarchean granitoid. Furthermore, we argue that gravity-driven subduction occurred in the Archean, and subduction may be responsible for the trend towards increasing delta O-18 values within zircons since the Mesoarchean. |
关键词 | Archean continental growth Hydrosphere-crust interaction Intra-crustal recycling High-delta O-18 granitoids Gravity-driven subduction |
DOI | 10.1016/j.precamres.2021.106311 |
收录类别 | SCI |
语种 | 英语 |
资助项目 | National Natural Science Foundation of China[41772195] ; National Natural Science Foundation of China[41973048] ; Scientific Research Fund of the Institute of Geology, Chinese Academy of Geological Sciences[S2006] ; Geological Survey Fund of the China Geological Survey[DD20190358] ; Natural Science Foundation of Shandong Province[ZR2016DM01] |
WOS研究方向 | Geology |
WOS类目 | Geosciences, Multidisciplinary |
WOS记录号 | WOS:000684184400028 |
出版者 | ELSEVIER |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.qdio.ac.cn/handle/337002/176029 |
专题 | 中国科学院海洋研究所 |
通讯作者 | Liu, Jianhui |
作者单位 | 1.Chinese Acad Geol Sci, Inst Geol, Baiwanzhuang Rd 26, Beijing 100037, Peoples R China 2.Shandong Prov Bur Geol & Mineral Resources, Jinan 250013, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China |
推荐引用方式 GB/T 7714 | Liu, Jianhui,Ding, Zhengjiang,Chen, Hui,et al. Early hydrosphere-rock interactions and intra-crustal recycling recorded by remarkably high-delta O-18 Mesoarchean granitoids in the Sulu orogenic belt, eastern China[J]. PRECAMBRIAN RESEARCH,2021,362:13. |
APA | Liu, Jianhui,Ding, Zhengjiang,Chen, Hui,Wang, Xiangjian,&Liu, Fulai.(2021).Early hydrosphere-rock interactions and intra-crustal recycling recorded by remarkably high-delta O-18 Mesoarchean granitoids in the Sulu orogenic belt, eastern China.PRECAMBRIAN RESEARCH,362,13. |
MLA | Liu, Jianhui,et al."Early hydrosphere-rock interactions and intra-crustal recycling recorded by remarkably high-delta O-18 Mesoarchean granitoids in the Sulu orogenic belt, eastern China".PRECAMBRIAN RESEARCH 362(2021):13. |
条目包含的文件 | ||||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
1-s2.0-S030192682100(12186KB) | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 浏览 |
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。
修改评论