摘要
麻栗坪铅锌矿区是川-滇-黔铅锌成矿域的会泽铅锌成矿带的一部分,具有很好的成矿地质背景。麻栗坪铅锌矿区观音岩矿段共圈定6个铅锌矿(化)体,分别为Ⅱ-1、Ⅱ-3、Ⅱ-4、Ⅱ-5、Ⅱ-6、Ⅱ-7号矿体。从Ⅱ-1、Ⅱ-3号矿体的厚度、铅、锌品位在走向上和倾向上的变化特征说明矿体的厚度及锌品位无论在走向上或倾向上的变化皆不大,而铅品位的变化较大,并且铅锌含量呈负相关关系,未出现铅锌很高的现象。本区矿床为海底火山热液喷流沉积、后期热液叠加富集改造成因,控矿因素为地层、岩性和断裂。
Maliping Pb-Zn deposit is an important part of in Sichuan, Yunnan and Guizhou Pb-Zn metallogenic belt, with advantageous geological background. There are six Lead-zinc bodies in Guanyingyan ore section in Mallping Pb-Zn deposit, including No. Ⅱ - 1, Ⅱ - 3, Ⅱ - 4, Ⅱ - 5, Ⅱ- 6 and No. Ⅱ - 7 orebody. Through study of the variation of thickness, lead grade and zinc grade in striek and tendency, the conclusions can be obtained that zinc orebody thickness and grade change a little, but lead grade change a lot, in addition, the content between lead and zinc showed a negative relationship. It is genetically a volcanic exhalation-sedimentary superimposed enrichment transformation deposit, which contoIled by stratum, lithology and facture.
出处
《科学技术与工程》
北大核心
2014年第18期149-155,172,共8页
Science Technology and Engineering
关键词
麻栗坪铅锌矿区
观音岩矿段
厚度
品位
火山热液喷流沉积
叠加富集改造
tion-scdimentarymaliping Pb-Zn deposit guanyingyan ore sectionsuperimposed enrichment transformationthickness grade volcanic exhalation-scdimentary superimposed enrichment transformation
