The footwall rocks are deposited near the vent of a basin that is controlled by the activity of growth fault, similarly to cherts deposited near the ridge of a modern ocean basin.

• 矿体底板、顶板与顶板上覆地层中硅质岩的沉积环境不同.；矿体底板硅质岩沉积于受同生断裂控制的热水喷口的附近；类似于洋中脊附近环境下沉积的硅质岩;