摘要
矿床主岩为中泥盆统干枚岩、板岩。含矿建造的有机地球化学研究表明:主岩富含原生有机质,其沉积环境为还原一强还原的浅海低洼海盆。有机质已达高级成熟阶段,但矿区范围未见热成熟异常。引起有机质成熟的主导因素乃是长期的深埋压实造成的地热。说明矿床主要形成于同生沉积阶段。
The host-rock of the ore deposit is phyllite and slate of Middle Devonian.The studies of organic geochemistry on the ore-bearing formation show that the host-rock is rich in primary organic matters and the sedimentary environment is low basin in the epicontinental sea. The organic matters reach high maturation stage. There is no thermal maturation anomaly. The principal factor forming the organic matter maturation is the terrestrial heat to long buried compression.The facts show that the ore deposit formed in the synsedimentary stage.
出处
《地球科学（中国地质大学学报）》
EI
CAS
CSCD
北大核心
1990年第1期117-124,共8页
Earth Science-Journal of China University of Geosciences
基金
地矿部"七五"重点攻关项目"秦巴地区重大基础地质问题和主要矿产成矿规律研究"的一个四级课题<陕西柞水银硐子银铅多金属矿床的控矿因素及成因研究>中的部分内容
关键词
多金属矿
有机地球化学
气相色谱
multimetal ore deposit,primary organic matter,chloroform extract,gas-chromatogram, thermal maturation, Shaanxi Province,
