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The Discovery of a Large-Size Fine Disseminated Gold Deposit in Eastern Qinghai Province
详细信息   
摘要

Located in Tongde County of eastern Qinghai, the Jiawu gold deposit is another large-size gold deposit discovered by Gold Prospecting Armed Police in recent years. The ore deposit is situated between western Qinling and eastern Kunlun. Ore bodies occur in Middle-Lower Triassic strata, and are horizontally in the gentle wave form and vertically in the veinlike or layered form. The main metallic minerals include pyrite and arsenopyrite, and gold is disseminated in fissures of quartz and intergranular space between arsenopyrite and pyrite in the microgranular form. A preliminary study reveals that this deposit is a kind of fine disseminated gold deposit directly controlled by the structural alteration zone and has a genetic relationship with sedimentation and magnetic activity. Until now, the proven reserves of the total 22 ore bodies have reached over 20 tons.

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