偃龙煤下铝地球化学特征及微地貌控制  

Geochemical Characteristics and Micro-Landform-Controlling of the Bauxite-Under-Coal of Yanlong

作　　者：周红春[1] 刘文波[1] 陈永才[1] 张清[1] 陈光[1] 郝金玉[1] 曹高社[2] 段建设[1] 

机构地区：[1]河南省地质矿产勘查开发局第四地质勘查院 [2]河南理工大学资源环境学院

出　　处：《现代矿业》2015年第6期84-88,共5页Modern Mining

摘　　要：河南省偃龙煤田深部铝土矿勘查项目是河南省第一批整装勘查项目之一,目前已经取得了较好的找矿成果。通过系统采集常量元素、微量元素和稀土元素样品,结合相关测试数据,对矿体的垂向、横向和纵向地球化学特征进行了深入分析,认为矿体主要受岩溶地貌和后期的风化淋滤作用影响,导致陆地向海凹进地区比凸起地区成矿条件优越。Yanlong bauxiet-under-coal exploration project is one of the first integrated exploration projects in Henan province, at present, good ore-prospecting results has achieved. Samples of major ele- ments, trace elements and rare earth elements are collected systematically, combined with some related test data, geochemical characteristics of the orebodies in the directions of vertical, horizontal and vertical are analyzed in depth. The analysis results show that the orebody is mainly affected by karst landform and later weathering and leaching, which lead to the metallogenic conditions in the recessed areas of land to the sea is superior to the projection area.

关 键 词：煤下铝 地球化学特征 风化淋滤作用 地貌控制 

分 类 号：P618.45[天文地球—矿床学]