摘要
七角井铁钒矿是甘肃北山地区近年来勘查发现较为典型的层控型矿床,铁矿体赋存于青白口系大豁落山组磁铁石英岩及含磁铁矿透闪石岩中,钒矿体主要赋存于寒武系西双鹰山组碳质板岩中。矿区内圈定铁矿体17条,长82~220 m,厚1.48~11.80 m,w(TFe)_(平均)=21.02%~34.23%;圈定钒矿体26条,长200~5930 m,厚1.09~11.26 m,w(V_(2)O_(5))_(平均)=0.94%~11.26%。综合研究表明,七角井铁钒矿主要控矿因素为岩性控矿、构造控矿和岩相古地理控矿,主要找矿标志为岩性标志、构造标志、地球物理标志和地貌标志。
Qijiaojing Fe-V deposit is a typical strata-bound deposit newly discovered in Beishan area in recent years.The Fe ore bodies occur in magnetite quartzite and tremolite-bearing rocks and V ore bodies mainly in carbonaceous slate of Cambrian Xishuangyingshan formation.In mine area 17 Fe ore bodies 82-220 m long and 1.48-11.80 m thick are located with w(TFe)=21.02%-34.23%;26 V ore bodies 200-5930 m long and 1.09-11.26 m thick w(V_(2)O_(5))=0.94%-11.26%.We comprehensively consider that the deposit is mainly controlled by lithology,structure and palaeogeography.Prospecting mark includes lithology,structure,geophysics and geomorlogy.
作者
杨镇熙
张琳
刘永彪
王鹏
王振
YANG Zhenxi;ZHANG Lin;LIU Yongbiao;WANG Peng;WANG Zhen(The Fourth Geological and Exploration Institute of Gansu Geology and Mineral Resources Bureau,Jiuquan 735000,Gansu,China)
出处
《地质找矿论丛》
CAS
2023年第3期263-268,共6页
Contributions to Geology and Mineral Resources Research
基金
甘肃省科技计划项目(编号:22JR5RA819)
甘肃省省级重点人才项目(甘组通字[2023]20号)联合资助。
关键词
七角井铁钒矿
矿床类型
找矿标志
甘肃北山
Qijiaojing Fe-V deposit
deposit type
prospecting mark
Beishan area of Gansu province
