At the first stage,source beds of microclastic sediments,rich in carbon,sulfur and gold,were de-veloped in a relatively euxinic semirestricted reducing basin.

• 成矿阶段的构造热液事件使金从变质细碎屑岩中淋出、迁移，或与其他来源的金汇集、沉淀构成矿床。