Oxygen isotopic alteration rate of continental crust recorded by detrital zircon and its implication for deep-time weathering
文献类型：期刊论文
| 作者 | Li, Gaojun1,2,3; Yang, Ruiyu1; Xu, Zhewen1; Hartmann, Jens4; Hedding, David W.5; Li, Xianhua6; Ernst, Richard E.7,8; Li, Zhong-Hai9; Zou, Hao3; Li, Zhongquan3 |
| 刊名 | EARTH AND PLANETARY SCIENCE LETTERS
 |
| 出版日期 | 2022-01-15 |
| 卷号 | 578页码:8 |
| ISSN号 | 0012-821X |
| 关键词 | silicate weathering plate tectonics carbon cycle paleoclimate oxygen isotopes |
| DOI | 10.1016/j.epsl.2021.117292 |
| 英文摘要 | Weathering plays a significant role in the Earth system through the exchange of material among the lithosphere, atmosphere, hydrosphere, and biosphere. Variation of continental weathering in deep-time, however, remains elusive. This work investigates continental weathering recorded by detrital zircon. Zircon can record the oxygen isotopic composition (delta O-18) of its parent crust at the time of crystallization, the value of which principally reflects the time-integrated effect of crustal alteration. The Hf isotopes and U-Pb isotopes of zircon also help to constrain the alteration history between crust generation and zircon crystallization. A new algorithm is introduced to reconstruct the average delta O-18 alteration rate of continental crust (R delta 18O-CC) through time by solving a set of linear equations based on a large population of detrital zircons with varying temporal coverage across the history of crustal alteration. A nearly three-billion-year history of R delta 18O-CC from 3.2 Ga to 0.3 Ga can be reconstructed using more than 5,000 globally distributed detrital zircons with coupled U-Pb-Hf-O isotopic records. The reconstructed R delta 18O-CC shows an overall bell-shape long-term evolution centered at ~2 Ga superposed with variations that are coupled with supercontinental assembly cycles. The long-term evolution of the reconstructed R delta 18O-CC seems to be correlated with solid-earth CO2 degassing expected from the age distribution of deleted mantle and the supercontinental cycles. Thus, the R delta 18O-CC is interpreted to reflect weathering considering the control of solid-earth CO2 degassing on the total weathering flux of continental crust. However, independent evidence on the solid-earth CO2 degassing is unavailable, interpreting R delta 18O-CC as a weathering record requires further testing. Nevertheless, this work provides an example of how the time-integrated signal, with large noise-to-signal ratio, preserved in geological archives can be deconvolved using a large dataset. The result also demonstrates the great potential that weathering history may have in reconstructing the operation of the Earth system across deep-time. (C)& nbsp;2021 Elsevier B.V. All rights reserved. |
| WOS关键词 | BILLION YEARS ; CARBON-CYCLE ; OXYGEN ; EVOLUTION ; OCEAN ; EARTH ; FEEDBACK ; GROWTH ; DRIVER ; HF |
| 资助项目 | National Natural Science Foundation of China[41877351] ; National Natural Science Foundation of China[42061130212] ; National Natural Science Foundation of China[41991321] ; Fundamental Research Funds for the Central Universities[0206-14380124] ; IUGS Deep-Time Digital Earth Big Science Program |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000782120900005 |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; IUGS Deep-Time Digital Earth Big Science Program ; IUGS Deep-Time Digital Earth Big Science Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; IUGS Deep-Time Digital Earth Big Science Program ; IUGS Deep-Time Digital Earth Big Science Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; IUGS Deep-Time Digital Earth Big Science Program ; IUGS Deep-Time Digital Earth Big Science Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; IUGS Deep-Time Digital Earth Big Science Program ; IUGS Deep-Time Digital Earth Big Science Program |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/105105]  |
| 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 | Li, Gaojun |
| 作者单位 | 1.Nanjing Univ, Dept Earth & Planetary Sci, MOE Key Lab Surficial Geochem, Nanjing 210023, Peoples R China 2.Nanjing Univ, Frontiers Sci Ctr Crit Earth Mat Cycling, Nanjing, Peoples R China 3.Chengdu Univ Technol, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610059, Sichuan, Peoples R China 4.Univ Hamburg, Inst Geol, Ctr Earth Syst Res & Sustainabil CEN, Bundesstr 55, D-20146 Hamburg, Germany 5.Univ South Africa, Dept Geog, Pioneer Ave, ZA-1710 Florida, South Africa 6.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100027, Peoples R China 7.Carleton Univ, Dept Earth Sci, Ottawa, ON K1S 5B6, Canada 8.Tomsk State Univ, Fac Geol & Geog, Tomsk 634050, Russia 9.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Key Lab Computat Geodynam, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 |
Li, Gaojun,Yang, Ruiyu,Xu, Zhewen,et al. Oxygen isotopic alteration rate of continental crust recorded by detrital zircon and its implication for deep-time weathering [J]. EARTH AND PLANETARY SCIENCE LETTERS,2022,578:8. |
| APA |
Li, Gaojun.,Yang, Ruiyu.,Xu, Zhewen.,Hartmann, Jens.,Hedding, David W..,...&Chen, Jun.(2022). Oxygen isotopic alteration rate of continental crust recorded by detrital zircon and its implication for deep-time weathering .EARTH AND PLANETARY SCIENCE LETTERS,578,8. |
| MLA |
Li, Gaojun,et al." Oxygen isotopic alteration rate of continental crust recorded by detrital zircon and its implication for deep-time weathering ".EARTH AND PLANETARY SCIENCE LETTERS 578(2022):8. |
入库方式： OAI收割
来源：地质与地球物理研究所
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