论文部分内容阅读
湘中锑金成矿区是我国西南大面积低温成矿域的重要组成部分,构造上位于扬子地块与华夏地块的交接部位。龙山锑金矿床位于湘中矿集区内的白马山-龙山锑金成矿带内,构造上受北东向新宁-宁兴断裂与东西向白马山-大乘山-龙山隆起带的交接部位控制,产于龙山穹窿内,赋矿地层为震旦系江口组上段浅变质碎屑岩。由于缺少适合于传统同位素测年技术的矿物,龙山锑金矿床的形成时代尚未得到有效制约,限制了对其形成机制的认识。锆石(U-Th)/He测年技术的发展和应用为制约浅成低温
The antimony gold deposit in central Hunan Province is an important part of the large-area low-temperature metallogenic domain in the southwest of China. It is structurally located at the junction of the Yangtze block and the Huaxia block. The Longshan antimony gold deposit is located in the Bamashan-Longshan antimony gold metallogenic belt in the Central Hunan ore district and is structurally controlled by the junction of the Xinning-Ningxing fault in the northeast to the Baimashan-Mount Mountain-Longshan uplift in the east-west direction , Produced in the Longshan dome, Fu ore strata for the upper Sinian Jiangkou Formation metamorphic clastic rocks. Due to the lack of minerals suitable for traditional isotope dating techniques, the age of the formation of the Longshan Antimony gold deposit has not been effectively controlled, which limits the understanding of its formation mechanism. The development and application of zircon dating (U-Th) / He dating techniques to control shallow to low temperature