摘要
稀有稀土超大型矿床的储量为大型矿床储量的５倍以上（ＲＥＥ、Ｂｅ）或１０倍以上（Ｌｉ、Ｃｓ、Ｎｂ、Ｔａ、Ｚｒ）。这类矿床大多与碱性岩类岩石有关，主要分布在地台区，成岩成矿时代以前寒武纪为主，其次为中生代。成矿作用具有多期次性，矿化往往发生在更为还原条件下。
Reserve for super large rare metal and REE ore deposit is more than 5 times of the large type ore deposit as REE and Be deposit,or over 10 times as large Li,Cs,Nb,Ta and Zr deposit.These deposits are mostly related to alkalic rocks,and mainly distribute in platform area.Their ages for the rock formation and mineralization are mainly in Precambrian,secondarily in Mesozoic.The mineralization is charactered by polystages,and usually formed in reduction environment.The super large rich ore deposits are directly related to the deep mineralization sources.
出处
《矿产与地质》
1997年第1期14-19,共6页
Mineral Resources and Geology
关键词
稀土元素矿床
矿床类型
储量
成矿作用
Super large ore deposit,Rare matal and REE,Ore deposit type
