浙江中生代晚期火山沉积盆地中硼钙石类矿物的发现及其找矿意义

火山沉积型硼矿床是当今世界上最具工业价值的硼矿类型。浙江一带中生代晚期的火山沉积盆地具有高硼背景质。通过利用石油勘查获取的大量岩心 ,系统地建立该区中生代晚期典型火山沉积盆地纵向地质地球化学剖面 ,从中揭露出一处发育良好的含硒、锂、钾、砷、铯、铷等元素综合硼异常区 ,同时发现了独立的硼钙石类矿物。含高硼异常盆地显示出弱咸化古盐湖的沉积建造特征 ,已具备了形成火山沉积硼矿的条件 ,预示着今后在该地区寻找以硼为主并伴生其它有用元素的矿产 ,具有良好的前景。

DISCOVERY OF CALCIBORITE-TYPED MINERALS IN LATE MESOZOIC VOLCANOSEDIMENTARY BASINS IN ZHEJIANG PROVINCE AND THEIR CONSTRAINT ON ORE-HUNTING

Volcanosedimentary boron deposits, of the greatest industrial value of the world borate resources, can also be traced in Zhejiang late Mesozoic volcanosedimentary basins of boron-high background. A anomalous area bearing not just independent calciborite-typed mineral but such associated elements as Se, Li, K, As, Cs, Rb, and so on, has be brought to light through working out the vertical geological and geochemical sections through the late Mesozoic basins according to the a lot of drilling core from oil-prospecting units. Owing to showing characteristics of the sedimentary formation of a slightly saline lake, the area is believed to have possessed conditions necessary for formation of volcanosedimentary boron deposit, thus regarded probably as a promising target for the coming prospection for mineral resources, boron as well as associated elements.