地质与勘探2012，Vol.48Issue(1)：119-131,13.
煎茶岭金镍矿田构造特征及控岩控矿作用探讨
Structural Characteristics of the Jianchaling Gold-Nickel Orefield and Its Rock-controlling and Ore-controlling Roles
摘要
Abstract
The cobalt-bearing sulfide nickel deposit in Jianchaling has entered the exploitation stage and gold-search is undergoing in its peripheral mines. Thus it is an important task to ascertain the structural characteristics and rock-controlling and ore-controlling roles of this orefield. We have analyzed the orefield structure, deposits and tectono-geochemistry. The result shows that this orefield has experienced frequent tectono-thermal events, folds of many periods controlled the stratigraphic distribution, and conjugate regional ductile shear belts controlled the emplacement of rock intrusion. The fea- tures of tectono-geochemistry indicate that ductile deformation was favorable to the activation of metallogenic elements, while ductile-brittle deformation promoted element migration and enrichment. Introduction and removal of large-volume materials occurred within regional ductile shear belts and ore-con- trolling ductile-brittle shear belts. The contents of K20 and Cr etc. in mylonitized serpentinite-type nickel ores are obviously less than that in regional ductile shear belts, and the elements, such as Fe203 , FeO, P205, LOI, MnO, SiO2, CaO, Ni, and Co, have been carried into nickel ores. The ore- controlling ductile-brittle shear belts have determined the form, occurrence, ore structure and texture of gold and nickel ore-bedies. So, rocks and ores in the Jianchaling gold-nickel orefield are controlled jointly by folds, regional ductile shear behs and ore-controlling ductile-brittle shear belts, which can be described by a mineralizing model.. The brittle fractures were formed later, and destructed the strata, rock bodies and ore-bodies to some degree.关键词
金镍矿田/构造特征/构造地球化学/控岩控矿作用/煎茶岭Key words
gold-nickel orefield/ductile shear belts/tectono-geochemistry/rock-controlling and ore-controlling roles/Jianchaling分类
天文与地球科学引用本文复制引用
聂江涛,李赛赛,魏刚锋,姜修道,任金彬,任华..煎茶岭金镍矿田构造特征及控岩控矿作用探讨[J].地质与勘探,2012,48(1):119-131,13.基金项目
中国与亚洲重大地质问题对比研究项目（编号：1212010611807）资助. （）
