云南省陆良县老母村铅锌银多金属矿床地质特征及找矿方向
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摘要
老母村铅锌银多金属矿床位于响水箐—大兑冲—老母村铅锌银矿带的最北端,为近年来新发现的矿床,槽探工程已控制1条厚大脉状矿(化)体。综合研究表明,矿床成因类型为热液型,南华系下统陆良组是重要的赋矿层位,北东向断裂是主要控矿因素,硅化、方铅矿化、黄铁矿化和褐铁矿化是重要的蚀变找矿标志。结合区域成矿条件和周边矿床成矿规律,在矿床深部和矿化体的南端有望找到新的矿体,为进一步的找矿工作指明了方向。
Laomucun Pb-Zn-Ag polymetallic deposit is located in the northernmost of Xiangshuiqing-Daduichong-Laomucun Pb-Zn-Ag ore belt. The deposit is a newly discovered one and the trenching project has controlled 1 thick and large-scale vein-type ore( mineralization) body. Comprehensive research shows that the deposit genesis is hydrothermal fluid type; the main ore-hosting strata are the Luliang Formation of the lower series of Nanhua System; NE fault is the main ore-controlling factor; and silication,gelenitization,pyritization and ferritization are important alteration prcspecting marks. Analysis based on regional ore-forming conditions and the ore-forming rules of peripheral deposits suggests that new orebodies are expected to be found in the deep part of the deposit and the southern part of mineralized bodies. The research guides further prospecting.
Laomucun Pb-Zn-Ag polymetallic deposit is located in the northernmost of Xiangshuiqing-Daduichong-Laomucun Pb-Zn-Ag ore belt. The deposit is a newly discovered one and the trenching project has controlled 1 thick and large-scale vein-type ore( mineralization) body. Comprehensive research shows that the deposit genesis is hydrothermal fluid type; the main ore-hosting strata are the Luliang Formation of the lower series of Nanhua System; NE fault is the main ore-controlling factor; and silication,gelenitization,pyritization and ferritization are important alteration prcspecting marks. Analysis based on regional ore-forming conditions and the ore-forming rules of peripheral deposits suggests that new orebodies are expected to be found in the deep part of the deposit and the southern part of mineralized bodies. The research guides further prospecting.
引文
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