Tongyu

概述

Au grade calculated. Deposit contains 31.26 t Au at 8-20 g/t Au (Geological Survey of Japan, 2007). Late Archean metamorphic complex (metavolcanics) at southern margin of the North China craton.

地质背景

构造环境: Pelite-mafic in mature oceanic backarc

资源与开采

数据溯源

数据来源: USGS MRDS