摘要
辽东硼铁矿床是一处类型独特的超大型矿床。文章对该矿床的地质特征、矿石物质组成、矿床稀土元素和稳定同位素特征及矿化时代进行了研究。研究表明,该矿床的成矿作用主要表现为海底热水沉积成矿,区域变质混合岩化作用对矿床进行了强烈的叠加改造,使硼铁进一步富集而形成工业矿床。
The uranium-bearing vonsenite deposit in Liaodong （eastern Liaoning） is a unique and superlarge deposit. In this paper, the authors studied the ore composition, ore-forming epoch, REE characteristics and stable isotopes of this deposit based on a detailed investigation of geological features of this type of deposits. The results indicate that submarine hot water deposition is the main ore-forming process of the uranium-bearing vonsenite deposit, and that the economic deposit was formed on the basis of further enrichment of boron and iron through the superposition and transformation by regional metamorphism and migmatization.
出处
《矿床地质》
CAS
CSCD
北大核心
2006年第1期83-88,共6页
Mineral Deposits
基金
国家地质大调查项目(编号:1212010331002)的资助
关键词
地质学
硼铁矿床
地质特征
成矿作用
辽东裂谷
geology, vonsenite deposit, geological features, ore-forming process, Liaodong rift
