云南省建水县洗马塘铅锌多金属矿矿体成因及找矿标志初探
Preliminary Discussion on the Genesis of Ore Bodies and Searching for Signs of Minerals of the Ximatang Lead-Zinc Polymetallic Mine in Jianshui County, Yunnan Province

云南省建水县洗马塘铅锌多金属矿地处上扬子古陆块(VI_-2)、泸西被动陆缘(VI_-2-8)与康滇基底断隆带(VI_-2-11)的分界处。该区主要铅锌矿体均赋存于三叠系中统个旧组(T₂g)白云岩、灰岩中。该区构造发育，主要铅锌矿体均严格受北东向逆断裂构造控制。该区出露的花岗岩与成矿关系十分密切。岩浆活动提供了热源，断层构造为含矿热液的运移、储存提供了有利空间，初步认为该区主要铅锌矿体的矿床成因与构造活动有关，属低温热液型铅锌矿床。通过对该区主要铅锌矿的矿体成因及找矿标志进行初步探讨，对该区下一步的找矿工作及成矿地质条件及矿产分布规律研究均有较大的参考价值。
The Ximatang lead-zinc polymetallic mine in Jianshui County, Yunnan Province, is located at the boundary between the Shangyangzi Ancient Landmass (VI_-2), Luxi Passive Continental Margin (VI_-2-8), and the Kangdian Basement Fault Uplift Belt (VI_-2-11). The main lead-zinc ore bodies in this area are hosted within the Middle Triassic System Gejiu Formation (T₂g) of dolomite and limestone. The area is structurally developed, with the main lead-zinc ore bodies strictly controlled by northeast-trending reverse faults. The exposed granites in the area have a very close relationship with mineralization. Magmatic activity provided a heat source, and fault structures provided favorable spaces for the migration and storage of ore-bearing hydrothermal fluids. It is preliminarily considered that the deposit genesis of the main lead-zinc ore bodies in this area is related to tectonic activities and they are of the low-temperature hydrothermal lead-zinc deposit type. Preliminary discussions on the genesis of the main lead-zinc ore bodies and searching for signs of minerals in this area have significant reference value for the next steps in exploration work, as well as for the study of the geological conditions of ore formation and the distribution patterns of mineral resources in the area.