摘要
该区大塘坡期为泻湖-潮坪环境,对锰矿床的形成具有明显的控制作用。作者还以矿床地质特征为依据,结合化学成分测定、同位素资料、稀土元素分析、阴极发光技术和数理统计分析,提出该矿床锰质来源于海底火山喷发的观点。
A lagoon·tidal flat environment is recognized for the Sogntao District in the Early SinianDatangpo period. The rhodochrosite mineralization was associated with subimarine volcanic eruptions. Geology of the manganese deposits, chemical composition of ores, isotopic and REE data,cathodoluminescence and statistic analysis are presented.
关键词
锰矿床
早震旦世
菱锰矿
lagoon-tidal flat
manganese deposit
rhodochrosite
submarine volcanic eruption
