The deposit No. 320 is a palaeokarst deposit resulted from the silicification and reworking which is same as the silicified solution-collapse breccia pipe in Arizona,USA.
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美
释义
320矿床是一个硅化改造的古岩溶矿床,它与美国亚利桑那州的硅化溶解-塌陷角砾岩筒相同。
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