摘要
邓家山铅锌矿床产于中泥盆统西汉水组生物灰岩和千枚岩的接触带;同生沉积期处于潮下礁后受限浅水盆地相,形成矿源层,改造期形成工业堆积;矿物成分以闪锌矿、方铅矿为主;查明银及含银矿物有五种,有益组分除铅锌外,银、镉、锗、镓可综合利用.本文对矿床的物质成分,包括伴生元素赋存状态作了介绍,对矿床成因的认识作了简要阐述.通过对矿床成因的诸控制因素:地层、岩性、生物、岩相和构造的研究,证明矿床属沉积改造型层控矿床.
Denjiashan lead and zinc deposits occured between biogenic limestone andphyllite.The mineral source formation was deposited in limited shallowbasin behind the reef under the tide during syndeposition.The industrialore bodies were formed during reformation.Sphalerite and galena are do-minant minerals.Five silverbarring minerals were identified.Besides pband Zn,useful eomponents such and Ag,Cd,Ge,as Ga may be madecomprehensive use of.The essay deseripts the material components and the occuring stateof associated elements of the ore deposits,presents briefly the view onmetallogeny,the research on the ore controls,including stratum,litholo-gical characters,biostrata,lithoracies and structure,and shows that thedeposit belongs to a strata-bound ore deposit of sedimentary and reformative type.
出处
《兰州大学学报（自然科学版）》
CAS
CSCD
北大核心
1989年第3期133-142,共10页
Journal of Lanzhou University(Natural Sciences)
关键词
铅锌矿床
物质成分
矿床成因
Denjiashan
Lead and Zinc deposits
Material component
Metallogeny
