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Crustal melting in orogenic belts revealed by eclogite thermal properties
Baohua Zhang; Hongzhan Fei; Jianhua Ge; Lingsen Zeng; Qunke Xia
2022
Source PublicationNature Communications
Volume13
Abstract

Partial melting in the continental crust may play a critical role on the behavior of continents during collision. However, the occurrence of partial melt in orogenic continental crust is not well understood. Since the temperature of the orogen is controlled by the thermal properties of constituent rocks, we measured the thermal conductivity and diffusivity of eclogite, the most important ultrahigh pressure metamorphic rocks, as a function of pressure, temperature, composition, and water content, and simulated the thermal structure of the Sulu and Himalaya-Tibet orogens in eastern and southwestern China, respectively. Our results show that the temperature at ~30-km depth beneath the orogens reaches the solidus of wet granite and phengite (~940 K), therefore, the partial melting in the orogenic continental crust is well explained. The melt may facilitate the exhumation of subducted crust, produce the low seismic-velocity zone, and cause the high-conductivity anomaly in the shallow depth of orogenic belts.

DOI10.1038/s41467-022-32484-w
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Indexed BySCI
Language英语
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Cited Times:18[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/42920512-1/13600
Collection地球内部物质高温高压实验室
Affiliation1.Key Laboratory of Geoscience Big Data and Deep Resource of Zhejiang Province, School of Earth Sciences, Zhejiang University, Hangzhou, 310027, China
2.Bayerisches Geoinstitut, University of Bayreuth, Bayreuth, D-95440, Germany
3.Advanced Batteries and Materials Engineering Research Center, Guizhou Light Industry Technical College, Guiyang, 550025, China
4.Key Laboratory for High-Temperature and High-Pressure Study of the Earth’s Interior, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China
5.Institute of Geology, Chinese Academy of Geological Sciences, Beijing, 100037, China
Recommended Citation
GB/T 7714
Baohua Zhang,Hongzhan Fei,Jianhua Ge,et al. Crustal melting in orogenic belts revealed by eclogite thermal properties[J]. Nature Communications,2022,13.
APA Baohua Zhang,Hongzhan Fei,Jianhua Ge,Lingsen Zeng,&Qunke Xia.(2022).Crustal melting in orogenic belts revealed by eclogite thermal properties.Nature Communications,13.
MLA Baohua Zhang,et al."Crustal melting in orogenic belts revealed by eclogite thermal properties".Nature Communications 13(2022).
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