论文部分内容阅读
扬子地块西南缘分布铅锌、金、银、铜矿大型矿集区,在我国有色金属、贵金属工业发展中处于举足轻重的地位。该区曾发生过多次泛大陆解体、离移、拼接和镶嵌,同时经历了多期多阶段构造-岩浆活动,导致区内构造复杂,矿产分布成带、成群,在地理地貌、地质构造、地球物理、地球化学方面,均表现为显著的分界线或梯度带。因此,该区是历来被地学界瞩目的构造单元
The distribution of lead, zinc, gold, silver and copper deposits in the southwestern margin of the Yangtze block plays a decisive role in the development of China’s non-ferrous and precious metals industries. There have been many disintegrations, departures, splicing and mosaic of the Pan-Continental Land in this area. In addition, the multistage multistage tectono-magmatic activity has experienced many complicated tectonic structures in the area with mineral distribution distributed in bands and groups. In the area of geography and geomorphology , Geophysics, geochemistry, showed a significant line of demarcation or gradient. Therefore, this area has always been the focus of geosciences and tectonic units