Discuss on the unity of uranium metallogenic mechanism

To investigate whether the different type uranium deposit in essence is a product of mantle plume effect, on the basis of previous studies of “global hydrothermal uranium genesis theory” and “hot spot uranium mineralization theory”, etc, and combined with the content of uranium and thorium in zircon magmatic rocks, it is suggested that uranium and thorium are mainly enriched in outer core and oceanic island basalt, intraplate basalt, highly differentiated granite and pegmatolite type uranium deposits, which may be the products of mantle plume. By comparing the research results of various types of uranium deposits in China, it is concluded that a certain number of uranium deposits are closely associated with oceanic island basalt, intraplate basalt, A-type granite and highly differentiated granite, and that mineralization and diagenesis are spatiotemporal coupling. The two types of basalts can be associated with the Datian mixed rock type uranium deposit in Panzhihua, Sichuan Province and the Qianjiadian-Baixingtou sandstone type uranium deposit in Songliao Basin, The two types of granites include the Jiling sodium metasomatic uranium deposit in Gansu Province and the Shangdan pegmatite uranium deposit in Shaanxi Province. And the four types of rock bodies can be associated with the Zhuguang-Guidong granite lithologic uranium deposit area in northern Guangdong, the multi-type uranium deposit area in south of Jiangxi Province, and volcanic rock type uranium deposits in Xiangshan, Jiangxi and Baiyanhe, Xinjiang. Based on the analysis, it is suggested that these plutons may be generated by the mantle plume and play the key role of ore guide or ore guide and deposit. Therefore, it is suggested that the origin of the uranium deposit is “core sources-mantle plume”, that is, the outer core is the main origin of uranium element, and the mantle plume is the unified channel of uranium migration. The uranium mineralization process may be that the metallic uranium in the outer core ascends and migrates along the mantle plume in the form of uranium hydride or uranium alloy hydride, etc, until it oxidizes and aggregates into solid uranium minerals in the shallow geological body.