河南栾川锅沟萤石矿地质特征及成因初探
Geological Characteristics and Genesis of Guogou Fluorite Deposit in Luanchuan County,Henan Province
沈瑞峰 1胡亚净 1王振强 1王建统 1李沐霏 1豆贯铭1
作者信息
- 1. 河南省第一地质矿产调查院有限公司,河南 洛阳 471000;河南省金银多金属成矿系列与深部预测重点实验室,河南 洛阳 471000
- 折叠
摘要
栾川县锅沟萤石矿是合峪地区新发现的萤石矿床,发育2 条规模较大的萤石矿带,新发现萤石矿体3 个,矿体受断裂构造的严格控制,长 600～1200m.总结以往区域上萤石矿床成矿物质来源、成矿时代、包裹体及其同位素等方面的研究,表明区域上萤石矿床形成于 118～126Ma,属早白垩世;成矿流体为低温度、低盐度、低密度流体,可能主要源于大气降水;赋矿围岩合峪岩体和太山庙岩体可能是萤石矿重要的物质来源.通过矿区地质特征和矿体特征与区域萤石矿床特征对比,发现锅沟萤石矿与区域上萤石矿床具有相似的成矿作用,初步认为锅沟萤石矿床成因类型为断裂控矿、中低温热液裂隙充填脉状矿床,深部有较大的找矿前景.
Abstract
The Guogou fluorite deposit in Luanchuan county is a newly discovered fluorite deposit in Heyu area.There are two large fluorite ore belts developed.Three new fluorite ore bodies have been discovered,which are strictly controlled by the fault structure and are 600～1200m long.The previous studies on ore-forming material source,ore-forming age,inclusions and isotopes of the fluorite deposit in the region show that the fluorite deposit was formed in 118～126Ma and belongs to the Early Cretaceous in the region.The ore-forming fluid is low temperature,low salinity and low density fluid,which may mainly originate from atmospheric precipitation.The Heyu pluton and Taishanmiao pluton are the host surrounding rock and probably important material sources of fluorite deposits.By comparing the geological characteristics of the mining area and the characteristics of the ore body with those of the regional fluorite deposit,it is found that the Guanguou fluorite deposit may have similar mineralization with the fluorite deposit in the region,so it is considered that the genetic type of the Guanguou fluorite deposit is fault-controlled and medium-low temperature hydrothermal fissure filling vein deposit,and the deep part of the deposit has great prospecting prospect.
关键词
锅沟/萤石矿/地质特征/成因分析/栾川县Key words
Guogou/fluorite ore/geological characteristics/genetic analysis/Luanchuan county引用本文复制引用
基金项目
河南省财政地质勘查项目(豫财招标采购-2022-223-2)
&&(豫财招标采购-2023-355-3)
出版年
2024
国家科技期刊平台
NSTL
维普
万方数据