韧性剪切带型金矿床地质特征研究——以辽宁排山楼金矿床与广东河台金矿床为例

Geological characteristics study of the ductile shear zone type of gold deposits——with Paishanlou gold deposit and the Hetai gold deposit as examples

韧性剪切带型金矿床作为重要金矿床类型之一,对其进行深入研究具有重要的理论和实际意义。以辽宁排山楼金矿床和广东河台金矿床2个典型韧性剪切带型金矿床为例,对韧性剪切带型金矿床地质特征进行概括和总结。韧性剪切带型金矿床与其赋存的韧性剪切带往往具有形成时间上的滞后效应,矿体严格受韧性剪切带控制,但多分布在韧性剪切带的后期脆性断裂中。剥蚀程度低、长期演化的造山带环境是寻找韧性剪切带型金矿床的战略方向。

The ductile shear zone type of gold deposits as one of the important gold deposits is worth further study for this type of gold deposits and has important theoretical and practical significanees. In this paper, taking Paishanlou gold deposit （Liaoning Province） and Hetai gold deposit （Guangdong Province）, two typical ductile shear zone types of gold deposits, for example, summary and conclusion of geological characteristics of the ductile shear zone types of gold deposits have been made. The ductile shear zone type of gold deposit tends to have lagged effects on the formation time compared with the ductile shear zones it occurs in. The ore bodies are strictly controlled by ductile shear zones, but are always located in late brittle fracture of the ductile shear zones. The paper pointed out that the orogenic belt environ- ment with low denudation and long-term evolution is the strategic direction of looking for the ductile shear zone type of gold deposits.