赣南某早志留世岩体风化壳淋积型重稀土矿成矿地质特征及其找矿意义

The ore-forming geological characteristics and the prospecting significance of heavy REE deposit of weathering and leaching illuviation crust type within an Early Silurian granite in south of Jiangxi

赣南风化壳淋积型重稀土矿床多产于燕山早期晚阶段至燕山晚期花岗岩中。在早志留世(加里东期)岩浆岩中发现风化壳淋积型重稀土矿床,为风化壳淋积型重稀土矿的找矿提供了新的方向,拓宽了地质找矿领域。通过对该早志留世岩体开展地质踏勘、赣南钻工程施工、系列样品的采集化验分析等工作,进一步确定了该岩体风化壳淋积型重稀土的含矿性,初步圈定了风化壳淋积型重稀土矿体。

There are many heavy rare earth element(REE)deposits of the weathering and leaching illuviation crust type in the late stage of Early Yanshanian to the Late Yanshanian granite.The discovery of heavy REE deposits of weathering crust type in the magmatic rocks of Lower Silurian series(Caledonian period)provides a new prospecting direction for the heavy REE deposit,and also extends the research area of the REE geological prospecting as well.Through the works of geologic survey,drilling and engineering project,chemical analysis of the series samples in collection,the mineralization property of heavy REE is further determined in the granite,and the heavy REE ore body of weathering crust type is preliminarily found out and delineated.