摘要
云南兰坪金顶锶矿位于"三江"银铜铅锌多金属成矿区的兰坪金顶超大型铅锌矿区。矿区处于较为特殊的推覆构造中,推覆构造形成上三叠统三合洞组灰岩组成的推覆体叠置于白垩系和古新统云龙组之上,形成金顶穹隆,围绕金顶穹隆,无论是铅锌矿、锶矿,还是石膏矿矿体均呈板状、脉状、透镜状产在主推覆构造面下的景星组和云龙组陆相碎屑岩中。通过对锶矿床的地质特征、矿体特征研究,认为该矿床是沉积—热卤水构造动力改造型。
Jinding strontium deposit is located at the oversize lead-zinc district of Sanjiang polymetallic metallogenic region with silver copper and lead-zinc ores. Composed of upper triassic system and Sanhedong formation limestone, the nappe stacked on the cretaceous and paleocene Yunlong formation, all of which fomed the Jinding dome. Some lead-zinc strontium and gypsum with tabular and veined as well as lens shaped are developping in the continental facies clastic rocks of Jingxing formation and Yunlong formation. The research on the geological and orebody characteristics of strontium deposit shows that it is a sedimentary-hot brine tectonic driving alteration deposit.
出处
《化工矿产地质》
CAS
2015年第2期77-84,共8页
Geology of Chemical Minerals
关键词
锶矿床地质特征
矿床成因
兰坪金顶
云南滇西
strontium deposit geological characteristics deposit genesis cause lanping Jinding weasternYunnan province
