Fine sandstone, siltstone and carbonate rock layers are favourable for the ore fluid transportation and shale and slate layers unfwvourable thus the barring layer of the fluid.

• 组成含金矿源层岩石为高频互层的细碎屑岩-碳酸盐岩,其中细砂岩、粉砂岩、碳酸盐岩含成矿流体物性较好,页岩、板岩含成矿流体物性较差,构成屏蔽层。