Abstract
South China is the key producing area of granite-type uranium deposits in China. After decades of exploration, many important progress has been made in the study of metallogenic regularity of granite type uranium deposits in this area. On the basis of previous studies, this paper attempts to sort out the geological conditions and characteristics of diagenesis and mineralization of granite type uranium deposits in South China, and discuss their metallogenic models, so as to better summarize the metallogenic regularity and serve the prospecting and prediction.
Highlights
Uranium resource is an important strategic resource and energy mineral in China, and a basic raw material for the development of China's nuclear industry [1]
Uranium resources in China are characterized by wide distribution, complex deposit types, small scale of single deposit, complex ore body shape and low and medium grade deposits
Granite type uranium deposits in South China are the earliest type of uranium deposits found in China
Summary
Uranium resource is an important strategic resource and energy mineral in China, and a basic raw material for the development of China's nuclear industry [1]. Granite type uranium deposits are hydrothermal uranium deposits with close spatial and genetic relationships with granite bodies. They occur in or near the granite. The study of uranium mineralization characteristics of uranium bearing granites in South China is helpful to explore the genesis of granite type uranium deposits in South China and has important guiding significance for prospecting. Uranium rich granite bodies in South China are mainly distributed in southern Jiangxi and northern Guangdong (such as Wanyangshan-Zhuguangshan granite body, Guidong granite body, Longyuanba granite body, Dafuzu granite body, Aigao granite body, Taoshan granite body, etc.) (Fig.1), followed by Northern Guangxi (such as Miaoershan-Yuechengling granite body, Motianling granite body), and a small amount in central Jiangxi (such as Jintan granite body), in which Zhuguangshan pluton and Guidong pluton in the north of Guangdong Province produce the most uranium deposits, accounting for about 50% of all types of uranium deposits in South China, and occupy the majority of uranium resources in this region [4]. A deposit often has multiple metallogenic ages, indicating that the mineralization has the characteristics of multi-stage and multi-stage [4]
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