金山金矿田构造变形特征及其模拟实验

金山金矿田岩石遭受了三期不同性质的构造变形，这三期构造变形对金矿体的形成起着决定作用。其中第二期早期韧性剪切变形阶段形成了矿田主要的控矿、容矿构造（金山－西蒋韧性剪切带），晚期脆性剪切变形阶段金矿体在动性剪切带中定位。本文通过高温三轴应力实验，对不同岩性的岩石在相同实验条件下的构近变形机制．和同种岩性的岩石在不同实验条件下的构造变形机制进行了模拟，为金山金矿田成矿提供了实验资料和依据。

TECTONIC DEFORMATION FEATURES OF JINSHAN GOLD OREFIELD──A SIMULATING EXPERIMENT

In the Jinshan gold orefield, rocks underwent three stages of tectonic deformation with differntfeatures. The early ductile shear deformation in the second stag resuled in the main ore-controllingstructure (Jinshan-Xijiang ductile shear belt) . At the late stage of brittle shear deformation, gold ore-body was formed in the ductile shear belt. In .this paper, by high-temperature triaxial stress experi-ment, we have studied the tectonic deformation mechanisms of different petrological types under thesame experimental conditions, and of the same petrofogical type under different experimenal condi-tions. This study has provided the experimental data and basis for research on the Jinshan gold- form-ing mechanism.