六○矿床铀、磷关系研究

STUDY ON THE RELATIONSHIP BETWEEN URANIUM AND PHOSPHOR IN DEPOSIT NO. 60

六○矿床产于六五火山盆地东部边缘，是一大型铀－磷矿床，受侏罗系鹅湖岭组第三段中下部火山碎屑沉积岩及陆源碎屑沉积岩层位控制。由于控矿层位形成时Ｕ和Ｐ一起得到初步富集，后期在构造热力作用下又一起活化、迁移和再沉淀，使得Ｕ主要以吸附状态赋存于胶磷矿中，Ｕ－Ｐ紧密伴生，相关系数达０．８—０．９。

The deposit No. 60 is a large uranium-phosphor one located at the eastern margin of the volcanic basin No. 65, and controlled by the stratigraphic horizon of the middle-lower part of the third member of the Ehuling Formation composed of volcaniclastic and terrigeneous clastic rocks. Uranium and phosphor were preliminarily concentrated together during the formation of ore-hosting layer,and then reactivated,transported and reprecipitated together under the action of tectonothermal process, leading to the concentration of uranium in collophane in the adsoption state. Uranium and phosphor are closely associated with the correlation coefficient of up to 0. 8-0. 9.