中国钼业2025，Vol.49Issue(3)：7-15,9.DOI:10.13384/j.cnki.cmi.1006-2602.2025.03.002
太行山中部阎家沟钼矿地质特征及成因研究
Geological Characteristics and Genesis of Yanjiagou Molybdenum Deposit in the Central Segment of Taihang Mountain
摘要
Abstract
Yanjiagou molybdenum deposit is located in the central part of Taihang mountain in the North China Craton,with contact zones between Mapeng rock mass and the periphery.It is a concealed ore body that is controlled through drilling.Molybdenum deposit(mineralization)occurs in the form of fine vein lenses(or layered)in the inner and outer alteration zones of the contact zone between the granite diorite of Mapeng pluton and Archean Caishuzhuang gneiss,as well as the Paleoproterozoic Gangnan gneiss.The inner alter-ation zone is the quartz diorite of Mapeng rock mass,and the outer alteration zone is Precambrian biotite plagioclase gneiss,with var-ying degrees of molybdenite mineralization,pyrite mineralization,silicification,potassium mineralization,sericitization and other alter-ations.The formation of molybdenum deposits is related to the destruction and thinning of the lithosphere in the North China Craton during Yanshanian period,the upwelling of mantle material in the asthenosphere,and the magmatic hydrothermal fluids rich in ore-forming fluids.Due to changes in temperature and pressure conditions,precipitation occurs along favorable structural areas,forming Yanjiagou porphyry molybdenum deposit on the contact zone between Mapeng rock mass and the surrounding rock.关键词
华北克拉通/燕山期/阎家沟钼矿/麻棚岩体/斑岩型Key words
North China Craton/Yanshan period/Yanjiagou molybdenum deposit/Mapeng rock mass/porphyry type分类
地质学引用本文复制引用
王瑞光,王银川,张桐,王洪洲,李倩倩,路叶..太行山中部阎家沟钼矿地质特征及成因研究[J].中国钼业,2025,49(3):7-15,9.基金项目
河北省地矿局科技项目:太行山中部麻棚岩体外围钼多金属矿成矿机制研究(13000025P003294103410)、长安大学2024年研究生科研创新实践项目(300103724059)资助成果 （13000025P003294103410）
