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, Ruohan; Li, Zhiwei; Han, Ran; Wang, Andong; Li, Yufeng; Xi, Yufei; Liu, Jingao; Mao, Xin; Sun, Yao; Xu, Ya |
刊名 | PHYSICS OF THE EARTH AND PLANETARY INTERIORS |
出版日期 | 2020 |
卷号 | 299 |
ISSN号 | 0031-9201 |
关键词 | Geoneutrino JUNO Radiogenic heat 3-D crustal model South China |
DOI | 10.1016/j.pepi.2019.106409 |
文献子类 | Article |
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. |
学科主题 | Geochemistry & Geophysics |
电子版国际标准刊号 | 1872-7395 |
语种 | 英语 |
WOS记录号 | WOS:000518726000006 |
源URL | [http://ir.ihep.ac.cn/handle/311005/297523] |
专题 | 江门中微子实验 |
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. |
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. |
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). |
入库方式: OAI收割
来源:高能物理研究所
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