浙赣若干火山岩型铀矿床成矿模式及找矿勘探方向

Metallogenic model and prospecting-exploration direction of some volcanics-type uranium deposit in Zhejiang and Jiangxi provinces

本文系统介绍了浙赣各类火山岩型铀矿床的地质特征 ,分析了各类火山岩型铀矿床的同位素组成、成矿物质来源以及成矿的物理化学条件 ,提出以次火山岩体为先导 ,热液柱 (体 )为主导所控制的地下水 火山岩成矿体系 ,是该区火山岩型铀矿成矿的主要模式 。

This paper systematically introduces geologic characteristics of various volcanics type uranium deposits in Zhejiang and Jiangxi provinces,and analyses their isotopic composition,source of ore forming materials,as well as physical chemical conditions of ore formation,and proposes that a groundwater volcanics metallogenic system with a precursor of subvolcanic body and main control of hydrothermal plume is the main genetic model for volcanics type uranium deposits in the region.Based on the above model,authors make suggestions for prospecting for volcanic type uranium deposits in volcanic terrain of Zhejiang and Jiangxi provinces.