地质找矿论丛

杨镇熙,张琳,刘永彪,王鹏,王振.甘肃北山七角井铁钒矿地质特征及找矿方向[J].地质找矿论丛,2023,38(3):263-268

甘肃北山七角井铁钒矿地质特征及找矿方向

Geological characteristics and prospecting direction of Qijiaojing Fe-V deposit in Beishan area, Gansu province

修订日期：2023-06-14

DOI：10.6053/j.issn.1001-1412.2023.03.001

中文关键词: 七角井铁钒矿矿床类型找矿标志甘肃北山

英文关键词:Qijiaojing Fe-V deposit deposit type prospecting mark Beishan area of Gansu province

基金项目:甘肃省科技计划项目(编号:22JR5RA819)和甘肃省省级重点人才项目(甘组通字〔2023〕20号)联合资助。

作者	单位
杨镇熙	甘肃省地矿局第四地质矿产勘查院, 甘肃酒泉 735000
张琳	甘肃省地矿局第四地质矿产勘查院, 甘肃酒泉 735000
刘永彪	甘肃省地矿局第四地质矿产勘查院, 甘肃酒泉 735000
王鹏	甘肃省地矿局第四地质矿产勘查院, 甘肃酒泉 735000
王振	甘肃省地矿局第四地质矿产勘查院, 甘肃酒泉 735000

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中文摘要:

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(V₂O₅)_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。

英文摘要:

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(V₂O₅)=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.

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