现代地质2013，Vol.27Issue(2)：303-313,11.
陕西略阳铧厂沟金矿床金的赋存状态研究
Study of Occurrence of Native Gold in the Huachanggou Gold Deposit, Shaanxi Province, China
摘要
Abstract
Located in the southern Qinling Mountains, the Huachanggou gold deposit is a small gold deposit which is currently being mined. On the basis of detailed field geological survey and systematic laboratory study including microscope observation, electron probe scanning, X-ray surface scanning, the occurrence of gold has been identified. The result shows that the gold exists mainly as independent mineral phase; the carriers are py-rite, quartz, dolomite, chalcopyrite and tennantite. The gold minerals are native gold with the fineness of 945 to 982. Neither argentiferous native golds nor electrums are found. Gold is embodied as inclusion, fissure-filling, intergranular and interlocking form. The gold granularity is mainly characterized by micro particulate (0. 010 -0. 005 mm, which accounts for 44% ) , micro fine particulate (0. 02 -0. 01 mm, which accounts for 22% ) and extra micro particulate (0.005 -0.001 mm, which accounts for 19%). The micro medium-to-giant grained golds are less in number, however, they are significant to ore grade and total resource. The authors also discussed the causes and significance of the high fineness and the distribution of granularity of the native gold.关键词
铧厂沟金矿床/金赋存状态/金成色/陕西Key words
Huachanggou gold deposit/ occurrence of gold/ fineness of gold/ Shaanxi Province分类
天文与地球科学引用本文复制引用
杨隆勃,刘家军,王建平,陈冬,李志国,王维钰,王立新,于康伟..陕西略阳铧厂沟金矿床金的赋存状态研究[J].现代地质,2013,27(2):303-313,11.基金项目
国家自然科学重点基金项目(41030423) （41030423）
中国地质调查局地质调查工作项目(1212011220924) （1212011220924）
中国黄金集团公司及其他项目(WHY(05)-03). （WHY(05）
