摘要
连城吉龙山锰、硫铁矿为异体共生矿床。矿体呈透镜状、脉状,产于北东向、北北西向断裂破碎带及侵入接触带中,地表属风化淋滤锰矿,深部为接触交代型硫铁矿。通过对矿床的成矿地质背景、矿体地质特征、控矿因素及成矿规律分析研究,矿区内地表锰矿为风化淋滤作用形成,矿质主要来源与围岩地层有关,深部硫铁矿与接触交代成矿作用有关。花岗岩与栖霞组石灰岩的接触带是硫铁矿形成的有利部位,是寻找接触交代矽卡岩型硫铁矿最具潜力的区域。
Jilongshan manganese and pyrite ore are allogenic paragenetic deposits in Liancheng county. The orebody is located in NE and NNW trending fracture zone and intrusive contact zone with veined and lenticular. The surface belongs to weathering leaching manganese ore, and the deep part is contact metasomatic pyrite. Based on the analysis of metallogenie geo- logical background, geological characteristics, ore controlling factors and metallogenic regu- larity, the surface manganese ore was formed by weathering and leaching in the mining. The main source of mineral is related to the formation of surrounding rock and deep pyrite is re- lated to the contact metasomatic mineralization. The contact zone between granite and Qixia formation limestone is a favorable site for pyrite formation, and is the most promising area for finding contact metasomatic skarn type pyrite.
作者
接晶
Jie Jing(Fujian Geological Survey and Mapping Institute, Fuzhou, 350011)
出处
《福建地质》
2017年第3期210-219,共10页
Geology of Fujian
关键词
锰矿
硫铁矿
地质特征
成因探讨
连城吉龙山
manganese ore, pyrites ore, geological characteristics, discussion on genesis, Jilongshan area of Liancheng county
