河南省方城县大庄一带铌矿地质特征及找矿标志

现代矿业 ›› 2020, Vol. 36 ›› Issue (07): 5-9.

河南省方城县大庄一带铌矿地质特征及找矿标志

宋玮¹ 于涛²康亚利³

1.河南省地质科学研究所;2.河南省地质矿产勘查开发局第四地质矿产调查院;3.河南省地质矿产勘查开发局第二地质矿产调查院

出版日期:2020-07-25 发布日期:2021-09-19

Geological Characteristics and Pospecting Citeria of Nb Deposits in Dazhuang Area, Fangcheng County,Henan Province

Song Wei¹ Yu Tao²Kang Yali³

1.Henan Institute of Geological Sciences；2.No.4 Institute of Geological & Mineral Resources Survey of Henan； 3.No.2 Institute of Geological & Mineral Resources Survey of Henan

Online:2020-07-25 Published:2021-09-19

摘要/Abstract

摘要： 河南省方城县大庄一带铌矿区大地构造位置横跨华北陆块南缘与北秦岭构造带，位于栾川—维摩寺断裂北侧，地壳结构上具基底和盖层双层结构特点，矿床受区域上栾川—维摩寺断裂的碱性岩带控制。为分析该铌矿地质特征及找矿标志，在以往工作和研究的基础上，总结矿区地层、岩浆岩和物化探特征，结合伽马测量综述圈定矿体的特征，以此分析该区地质特征及找矿标志，为进一步找矿工作提供借鉴。综合分析认为该矿床成因类型为岩浆分异型矿床，找矿标志以碱性程度较高的岩体为主。

关键词: 伽马测量碱性岩铌矿地质特征找矿标志

Abstract: The geotectonic position of the niobium mining area in Dazhuang,Fangcheng County,Henan Province lies across the south margin of the North China landmass and the North Qinling tectonic belt,it is located in the north side of LuanchuanWeimosi fracture.The structure of the earth′s crust is characterized by double layers of basement and caprock.The deposit is controlled by the alkaline rock belt of LuanchuanWeimosi fracture in the region.In order to analyze the geological characteristics and prospecting indicators of the niobium ore,on the basis of previous work and research,this paper summarizes the characteristics of strata、magmatic rock and geophysical and geochemical exploration in the mining area,and summarizes the characteristics of ore body delineation combined with gamma survey,analyzes the geological characteristics and prospecting marks of the area,which can provide reference for further prospecting work.According to the comprehensive analysis,the genetic type of the deposit is magmatic differentiation deposit,and the main ore prospecting indicator is the high alkaline rock mass.

Key words: Gammasurvey, Alkaline rock, Nb deposit, Geological characteristics, Prospecting criteria

宋玮于涛康亚利. 河南省方城县大庄一带铌矿地质特征及找矿标志[J]. 现代矿业, 2020, 36(07): 5-9.

Song Wei Yu Tao Kang Yali. Geological Characteristics and Pospecting Citeria of Nb Deposits in Dazhuang Area, Fangcheng County,Henan Province[J]. Modern Mining, 2020, 36(07): 5-9.