Crust 1.0 crustal model and its application: an example from Middle-Lower Yangtze Metallogenic Belt

被引：0
作者：
Luo F. [1 ,2 ,3 ]
Yan J. [2 ,3 ]
Fu G. [1 ,2 ,3 ]
Luo L. [1 ,2 ,3 ]
Tao X. [1 ,2 ,3 ]
Wang H. [1 ,2 ,3 ]
机构：
[1] School of Geophysics and Measurement-control Technology, East China University of Technology, Nanchang
[2] Chinese Academy of Geological Sciences, Beijing
[3] China Deep Exploration Center, China Geological Survey & Chinese Academy of Geological Sciences, Beijing
来源：
Yan, Jiayong (yanjy@163.com) | 1600年 / Geological Society of China卷 / 94期
关键词：
Crust; 1.0; Global crustal model; Middle-Lower Yangtze metallogenic Belt; Moho; Varity density interface inversion;
D O I：
10.19762/j.cnki.dizhixuebao.2019134
中图分类号：
学科分类号：
摘要：
The crust is an important part of the Earth system. Understanding the structure and interaction of each circle is the core issue in the study of the deep interaction process of the Earth's material. Detection of the material composition and morphological structure of the Earth's crust remains a hot research topic in the Earth sciences. With the accumulation and mining of massive Earth exploration datasets, earth scientists have proposed crustal models with different levels of detail. At present, the Crust 1.0 model is the most detailed and highest resolution global crust model. This paper first elaborates on the data sources, distribution characteristics, deposition layer thicknesses, and crust density differences of the Crust 1.0 crust model. Then, based on the Crust 1.0 model information, the sedimentary layer correction of the satellite gravity data in the Lower Yangtze Metallogenic Belt and its adjacent areas is incorporated, and the Moho interface depth distribution in the Lower Yangtze Metallogenic Belt is obtained by the variable density interface calculation method. Its Moho surface presents a "V"-shaped Mantle uplift. We analyze the relationship between the distribution of mineral deposits, rock masses and deep faults, and the formation of the Qianlong belt. Our results confirm that mantle uplift in the deep metallogenic belt of the middle and lower reaches of the Yangtze River is the primary factor controlling the formation of deposits. The results show that Crust 1.0 model has broad application potential in the study of regional crustal structure, deep background of metallogenic dynamics, and earth system research. © 2020, Science Press. All right reserved.
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页码：648 / 660
页数：12
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