相山铀矿田热结构特征与成矿关系——以邹家山矿床为例

doi:10.11720/wtyht.2022.0032

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Abstract

The Xiangshan ore field is the largest volcanogenic uranium ore field in China with abundant uranium resources and favorable geothermal geological conditions. However, few studies have been conducted on its thermal structure and mineralization characteristics,In order to solve this problem effectively. Taking the Zoujiashan super-large uranium deposit in the west of the ore field as a typical area, this study systematically investigated the thermal structure characteristics of the ore field, established the thermal structure model, and analyzed the relationships between heat generation and mineralization. The results are as follows. The thermal structure in the study area is of the hot-mantle and cold-crust type, which is in line with the characteristics of thermal structures in eastern China. The higher crustal heat flow in the area is closely related to the uranium source and uranium ore bodies, and the decay heat generation of radionuclides is the main source of the crustal heat flow. The thermal anomalies in the area are obviously controlled by faults, and the heat source is highly consistent with the uranium source. The geothermal gradient anomalies are one of the prospecting criteria of the area. Moreover, 4 ℃/100 m is the positioning marker of deposits, and the variation amplitude of geothermal gradients can be used as the positioning marker of rich and large ore bodies. This study provides effective technical support for the study of geothermal geology and metallogenic geology in this area.

Key words： Xiangshan uranium ore field Zoujiashan thermal structure mineralization relationship

Received: 26 January 2022 Published: 03 January 2023

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	Articles by authors
	Yong-Bing YIN
	Hai-Ying LI
	Teng LU
	Piao-Ping HAN
	De-Xu KONG
	Huan-Huan WAN
	Wen-Jing PANG
	Zhi-Chun WU

Cite this article:

Yong-Bing YIN,Hai-Ying LI,Teng LU, et al. Relationships between thermal structure characteristics and mineralization of the Xiangshan uranium ore field:A case study of the Zoujiashan deposit[J]. Geophysical and Geochemical Exploration, 2022, 46(6): 1388-1395.

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https://www.wutanyuhuatan.com/EN/10.11720/wtyht.2022.0032 OR https://www.wutanyuhuatan.com/EN/Y2022/V46/I6/1388

Geological background and terrestrial heat flow distribution map of Xiangshan ore field

Statistical table of regional terrestrial heat flow

Plane contour map of geotemperature gradient of Zoujiashan deposit

Calculation table of lithospheric thermal structure in the study area

Heat generation rate model and thermal structure characteristics of the deposit

Plane projection of ground temperature and ore body in the study area

Profile of relationship between ground temperature and ore body in the study area
1—lower Cretaceous ehuling formation porphyry lava; 2—rhyolitic dacite of daguding formation in lower Cretaceous; 3—fault structure; 4—stratigraphic boundary; 5—industrial ore body; 6—geothermal isoline(℃); 7 —alteration zone range; 8—drill hole

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