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.

　
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  • 礦體底板、頂板與頂板上覆地層中硅質(zhì)巖的沉積環(huán)境不同.；礦體底板硅質(zhì)巖沉積于受同生斷裂控制的熱水噴口的附近；類(lèi)似于洋中脊附近環(huán)境下沉積的硅質(zhì)巖;
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