摘要
对遂昌治岭头金矿床的中矿段和西矿段中的石英进行了化学成分、热发光、红外光密度、40 Ar-39Ar年龄测定等特征的研究 ,石英中的成矿元素显示该矿区为伴生铜、铅、锌的银 -金矿床 ;石英的热发光特征说明了西矿段比中矿段远离火山热源 ;从石英的 40 Ar-39Ar年龄测定 ,认为本区的主成矿年龄应为 ( 1 39.4± 1 8.6) Ma。结合 F1 断裂及黄铁矿标型特征等的综合研究 ,认为矿区主成矿期为中生代 ,火山、次火山热液叠加使陈蔡群中的金矿化富集。
Typomorphic characteristics of quartz,such as chemical composition,thermoluminescense,density of light and argon age,from central ore block and western ore block of Zhilingtou gold deposit in Zhejiang Province are studied.Ore forming elements of quartz show that Zhilingtou gold deposit is a silver gold ore deposit associated with copper,lead and zinc.Thermoluminescense of quartz shows that western ore block is farther away from volcanic heat source than central ore block. Argon ages of quartz show the main ore forming chron is (139 4±18 6)Ma.The author thinks that the main mineralization epoch is Mesozoic era and the superimposition of volcanic and sub volcanic hydrothermal solution enriched gold and silver in the Chenchai Group and formed the gold ore deposit.
出处
《现代地质》
CAS
CSCD
2001年第2期222-225,共4页
Geoscience
基金
国家黄金管理局地质科研项目! (93-95 -33)
