几内亚加瓦尔矿区铝土矿地质特征及成矿机理浅析

Geological characteristics and metallogenic mechanism of bauxite in gawar mining area,Guinea

勘查区位于几内亚中西部的富塔贾隆高原上,地处赤道附近,年降雨量大且集中。本文通过工作区的区域地质特征、矿区地质特征和矿体地质特征、矿床成因及找矿标志分析研究,认为广泛分布的富铝基性岩石是形成铝土矿的母岩,湿热多雨和干旱交替的热带气候是铝土矿的外部形成条件。

The exploration area is located on the futajaron plateau in central and Western Guinea,near the equator,with large and concentrated annual rainfall.Based on the analysis and study of the regional geological characteristics,the geological characteristics of the mining area and the ore body,the genesis of the deposit and the prospecting indicators in the working area,it is considered that the widely distributed aluminum rich basic rocks are the parent rocks for the formation of bauxite,and the alternate tropical climate of humid,hot,rainy and arid is the external formation condition of bauxite.