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Thermal Alteration History of the Fenghuoshan Group, Hoh Xil Basin, Northern Tibetan Plateau: Insights From Clumped Isotope Thermometry

文献类型：期刊论文

作者Kong, Kai2,3,4,5; Deng, Wenfeng2,3,4; Guo, Yangrui2,3,4; Jin, Chunsheng1; Liu, Qingsong6; Wei, Gangjian2,3,4
刊名JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
出版日期2021-10-01
卷号126期号:10页码:19
关键词clumped isotopes solid-state reordering diagenetic alteration Hoh Xil Basin Fenghuoshan Group
ISSN号2169-9313
DOI10.1029/2021JB022009
英文摘要The carbonate clumped isotope (Delta(47)) thermometer has been widely used for paleoclimatic and paleo-elevation reconstructions in sedimentary basins. Its reliable use requires that carbonates are free from later diagenetic alteration and retain their depositional Delta(47) compositions, which is not always the case during the burial history of a basin. Therefore, identifying the alteration mechanisms that occurred during burial is essential for the correct interpretation of Delta(47) signatures. In this study, we used the Delta(47) thermometer to investigate possible carbonate alteration during burial of the Fenghuoshan Group (FHSG) in the Hoh Xil Basin, northern Tibetan Plateau, China. The Delta(47) temperatures [T(Delta(47))] of 30 carbonate samples through the similar to 4.5 km thickness of the FHSG range from 51 to 132 degrees C and exceed the surface temperature, implying the effects of thermal alteration on FHSG carbonates. The T(Delta(47)) values combined with the water-rock exchange model, indicating that the alteration occurred under closed burial conditions at low water:rock ratios. The solid-state reordering model fails to predict the Delta(47) values, even with a modified time-temperature history. In contrast, most measured Delta(47) values are in agreement with predictions from recrystallization models. Therefore, the proposed alteration scenario is that FHSG carbonates underwent progressive microscale recrystallization during deep burial and subsequent exhumation, during which process recrystallized carbonate equilibrated with ambient burial temperature and therefore modified Delta(47) values. This study highlights the potential of Delta(47) thermometry and related models for evaluating the burial history and diagenesis of carbonates in sedimentary basins.
WOS关键词PHOSPHORIC-ACID FRACTIONATION ; C-13-O-18 BONDS ; LACUSTRINE CARBONATES ; TECTONIC HISTORY ; TEMPERATURE ; OXYGEN ; CONSTRAINTS ; EVOLUTION ; CALCITE ; CALIBRATION
资助项目National Natural Science Foundation of China[41991325] ; National Natural Science Foundation of China[41722301] ; National Natural Science Foundation of China[41973003] ; National Natural Science Foundation of China[42003001] ; National Natural Science Foundation of China[42021002] ; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)[GML2019ZD0308] ; Guangzhou Institute of Geochemistry[2019SZJJ-09]
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000711968800032
出版者AMER GEOPHYSICAL UNION
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) ; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) ; Guangzhou Institute of Geochemistry ; Guangzhou Institute of Geochemistry ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) ; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) ; Guangzhou Institute of Geochemistry ; Guangzhou Institute of Geochemistry ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) ; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) ; Guangzhou Institute of Geochemistry ; Guangzhou Institute of Geochemistry ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) ; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) ; Guangzhou Institute of Geochemistry ; Guangzhou Institute of Geochemistry
源URL[http://ir.iggcas.ac.cn/handle/132A11/103777]  
专题地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
通讯作者Deng, Wenfeng
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Beijing, Peoples R China
2.Chinese Acad Sci, State Key Lab Isotope Geochem, Guangzhou Inst Geochem, Guangzhou, Peoples R China
3.CAS Ctr Excellence Deep Earth Sci, Guangzhou, Peoples R China
4.Southern Marine Sci & Engn Guangdong Lab, Guangzhou, Peoples R China
5.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China
6.Southern Univ Sci & Technol, Dept Ocean Sci & Engn, Shenzhen, Peoples R China
推荐引用方式
GB/T 7714		 Kong, Kai,Deng, Wenfeng,Guo, Yangrui,et al. Thermal Alteration History of the Fenghuoshan Group, Hoh Xil Basin, Northern Tibetan Plateau: Insights From Clumped Isotope Thermometry[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,2021,126(10):19.
APA Kong, Kai,Deng, Wenfeng,Guo, Yangrui,Jin, Chunsheng,Liu, Qingsong,&Wei, Gangjian.(2021).Thermal Alteration History of the Fenghuoshan Group, Hoh Xil Basin, Northern Tibetan Plateau: Insights From Clumped Isotope Thermometry.JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,126(10),19.
MLA Kong, Kai,et al."Thermal Alteration History of the Fenghuoshan Group, Hoh Xil Basin, Northern Tibetan Plateau: Insights From Clumped Isotope Thermometry".JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH 126.10(2021):19.

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来源：地质与地球物理研究所

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