传统的岩浆分异说认为,铀成矿热液是岩浆分异的产物,这一观点与越来越多的地质事实相矛盾。首先是成岩成矿时差过大。例如江西省大部分岩体的形成时间在188—155百万年之间(个别有132百万年、42百万年),而铀成矿时间多在73—84百万年,个别有120百万年,42百万年。两者之间的时差约在100百万年左右。按热传导速度及侵入体周围变质相带研究来估算,花岗岩基结晶所需时间约为数百万年。岩浆侵入100 The traditional differentiation of magma asserted that uranium mineralization hydrothermal fluid is a product of magmatic differentiation, a view contradicting more and more geological facts. First of all, the diagenesis is too large. For example, the formation time of most of the rock masses in Jiangxi Province is between 188-155 million years (132 million years and 42 million years respectively), while that of uranium is more than 73-84 million years, with 120 Millions of years, 42 million years. The time difference between the two is about 100 million years. According to the study of thermal conduction velocity and metamorphic facies around the invaded body, the time required for granite-based crystallization is about several million years. Magmatic intrusion 100