内蒙古呼伦贝尔哈达扎拉格一带土壤地球化学特征  

Soil Geochemical Characteristics in Hadazhalage Region in Hulunbeier,Inner Mongolia

作　　者：吴经炜 王春宇 杨澄雨 

机构地区：[1]成都理工大学地球科学学院 [2]黑龙江科技大学矿业工程学院 [3]成都理工大学地球物理学院

出　　处：《现代矿业》2017年第8期5-12,18,共9页Modern Mining

基　　金：内蒙古自治区地质调查专项(编号:NMKD2012-22)

摘　　要：为探寻内蒙古呼伦贝尔哈达扎拉格一带矿产资源,结合该区1∶50 000区域地质矿产调查成果,经研究区土壤样品元素相关特征参数的统计分析,将研究区划分为9个地质子区,并详细分析了各子区中各元素的分布、富集、贫化特征。在此基础上进行了单元素异常、组合元素异常圈定和解译,并重点对研究区敖宁高勒河以东组合异常(Ht-6~#)、温塔阿勒西组合异常(Ht-14~#)、1206高地组合异常(Ht-4~#)等主要异常进行了解译推断。研究表明:(1)Au、Ag、Mo等在研究区中背景含量相对较高且分布极不均匀,有可能在区内富集成矿;(2)区内白音高老组、满克头鄂博组、多宝山组和佳疙瘩组为Au的主要成矿母源层,而Ag富集主要受断裂系统控制,与后期热液有关;(3)区内优势矿产为金、银矿,次为钼矿。The Greater Khingan metallogenic belt is one of the major nonferrous metal metallogenic belts in China, it has huge resource potential. In recent years, the mineralization in the Mesozoic volcanic rocks in the Greater Khingan range has received extensive attention and mineral exploration breakthroughs have been made in the area. In order to provide some reference for the prospecting and exploration of the mineral resources in Hadazhalage Region in Hulunbeier, the 1 ： 50 000 regional geological investigation work in the region is conducted. Based on the regional geological investigation results and the analysis of some related characteristics parameters of the soil samples in the study area, the study area is divided into nine geological sub-segments, and the characteristics of distribution, enrichment and dilution of the ele- ments of each sub-segment are discussed. Besides that, the single anomalies and association anomalies are delineated and interpreted, and the main anomalies of the association anomaly distributed in the east of Aoninggaole River （Ht-6#） ,Wentaalexi association anomaly （Ht-14#） and 1206 highland association a- nomaly （ Ht4#） are conducted interpretation and prediction emphatically. The study results show that ： ① the background contents of Au, Ag and Mo in the study area are high and distributed unevenly, enrich- ment probability of them is great in the study area ; ②the Baiyingaolao Formation, Manketouebo Forma- tion, Duobaoshan Formation and Jiageda Formation are the main metallogenic parent layers of Au in the study area, the Ag enrichment in the study area is mainly controlled by fault system, and associated with later hydrothermal activities;based on the analysis of soil geochemical characteristics, regional geological background, it is indicated that Au and Ag ores are the dominant mineral resources in the study area,followed by Mo ores.

关 键 词：土壤地球化学特征 地质子区 异常圈定 异常解译 

分 类 号：P632.1[天文地球—地质矿产勘探]