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JULOC: A local 3-D high-resolution crustal model in South China for forecasting geoneutrino measurements at JUNO

文献类型：期刊论文

作者Gao, Ruohan8; Li, Zhiwei7; Han, Ran6; Wang, Andong5; Li, Yufeng4; Xi, Yufei3; Liu, Jingao8; Mao, Xin6; Sun, Yao8; Xu, Ya1,2
刊名PHYSICS OF THE EARTH AND PLANETARY INTERIORS
出版日期2020-02-01
卷号299页码:18
ISSN号0031-9201
关键词Geoneutrino JUNO Radiogenic heat 3-D crustal model South China
DOI10.1016/j.pepi.2019.106409
英文摘要Geothermal energy is one of the keys for understanding the mechanisms driving the plate tectonics and mantle dynamics. The surface heat flux, as measured in boreholes, provides limited insights into the relative contributions of primordial versus radiogenic sources of the interior heat budget. Geoneutrino, electron antineutrino that is produced from the radioactive decay of the heat producing elements, is a unique probe to obtain direct information about the amount and distribution of heat producing elements in the crust and mantle. Cosmochemical, geochemical, and geodynamic compositional models of the Bulk Silicate Earth (BSE) individually predict different mantle neutrino fluxes, and therefore may be distinguished by the direct measurement of geoneutrinos. Due to low counting statistics, the results from geoneutrino measurements at several sites are inadequate to resolve the geoneutrino flux. However, the JUNO detector, currently under construction in South China, is expected to provide an exciting opportunity to obtain a highly reliable statistical measurement, which will produce sufficient data to address several vital questions of geological importance. However, the detector cannot separate the mantle contribution from the crust contribution. To test different compositional models of the mantle, an accurate a-priori estimation of the crust geoneutrino flux based on a three-dimensional (3-D) crustal model is important. This paper presents a 3-D crustal model over a surface area of 10 degrees x 10 degrees grid surrounding the JUNO detector and a depth down to the Moho discontinuity, based on the geological, geophysical and geochemical properties. This model provides a distinction of the thickness of the different crustal layers together with the corresponding Th and U abundances. We also present our predicted local contribution to the total geoneutrino flux and the corresponding radiogenic heat. Compared to previous studies where the surface layer is subdivided into a few geologic units and each of them is considered to have the same geochemical property, our method has provided an effective approach to reduce the uncertainty of geoneutrino flux prediction by constructing the composition of the surface layer through cell by cell which are independent to each other.
WOS关键词CHEMICAL-COMPOSITION ; LATERAL VARIATIONS ; CATHAYSIA BLOCK ; MOHO DEPTH ; EVOLUTION ; ROCKS ; CONSTRAINTS ; TOMOGRAPHY ; GRANITOIDS ; MAINLAND
资助项目National Key Research and Development Program of China[2018YFA0404100] ; Fundamental Research Funds for the Central Universities[2652017214]
WOS研究方向Geochemistry & Geophysics
语种英语
出版者ELSEVIER
WOS记录号WOS:000518726000006
资助机构National Key Research and Development Program of China ; National Key Research and Development Program of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities
源URL[http://ir.iggcas.ac.cn/handle/132A11/95582]  
专题地质与地球物理研究所_中国科学院油气资源研究重点实验室
通讯作者Gao, Ruohan; Li, Zhiwei; Han, Ran
作者单位1.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resource Res, Beijing 100029, Peoples R China
3.Chinese Acad Geol Sci, Inst Hydrogeol & Environm Geol, Shijiazhuang 050061, Hebei, Peoples R China
4.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
5.East China Univ Technol, State Key Lab Nucl Resources & Environm, Nanchang 330013, Jiangxi, Peoples R China
6.Beijing Inst Spacecraft Environm Engn, Sci & Technol Reliabil & Environm Engn Lab, Beijing 100094, Peoples R China
7.Chinese Acad Sci, Inst Geodesy & Geophys, State Key Lab Geodesy & Earths Dynam, Wuhan 430077, Peoples R China
8.China Univ Geosci Beijing, Beijing 100083, Peoples R China
推荐引用方式
GB/T 7714		 Gao, Ruohan,Li, Zhiwei,Han, Ran,et al. JULOC: A local 3-D high-resolution crustal model in South China for forecasting geoneutrino measurements at JUNO[J]. PHYSICS OF THE EARTH AND PLANETARY INTERIORS,2020,299:18.
APA Gao, Ruohan.,Li, Zhiwei.,Han, Ran.,Wang, Andong.,Li, Yufeng.,...&Xu, Ya.(2020).JULOC: A local 3-D high-resolution crustal model in South China for forecasting geoneutrino measurements at JUNO.PHYSICS OF THE EARTH AND PLANETARY INTERIORS,299,18.
MLA Gao, Ruohan,et al."JULOC: A local 3-D high-resolution crustal model in South China for forecasting geoneutrino measurements at JUNO".PHYSICS OF THE EARTH AND PLANETARY INTERIORS 299(2020):18.

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来源：地质与地球物理研究所

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