| 卢俞杰,郭景会,郑元文,白德胜,郭玉溪,张俊,王滑冰,高旭升,邢贤阳.西非科特迪瓦某区土壤地球化学特征及找矿前景分析[J].矿产勘查,2024,15(10):1869-1877 |
| 西非科特迪瓦某区土壤地球化学特征及找矿前景分析 |
| Soil geochemical characteristics and prospecting prospect analysis of a certain area in Côte d'Ivoire， West Africa |
| 投稿时间：2023-02-02 修订日期：2023-05-16 |
| DOI：10.20008/j.kckc.202410011 |
| 中文关键词: 土壤地球化学异常 找矿潜力 金矿床 科特迪瓦 西非 |
| 英文关键词: soil geochemical anomalies prospecting potential gold deposits Côte d'Ivoire West Africa |
| 基金项目:本文受河南省地质勘查项目（豫自然资发［2019］22号）资助。 |
|
| 摘要点击次数: 568 |
| 全文下载次数: 191 |
| 中文摘要: |
| 研究区位于西非克拉通南部的古元古代鲍勒—莫西域（Baoulé-Mossi Domain）内，该区为西非最重要的金成矿区。本文通过对研究区内土壤Au、Ag、As、Cu、Pb、Co、Cr七种元素的含量、浓集比率、变异系数等地球化学参数的系统统计分析，得出该区Au元素具有浓集比率大，变异系数高的特征，为该区主要的成矿元素，As元素具有较高的浓集比率和变异系数，且异常范围与Au元素异常范围部分重合，为Au元素的指示元素，本次测量面积为5 km2，采样网度800 m×200 m，共采集样品594件。并在研究区土壤地球化学测量异常、地质特征及区域成矿地质背景的基础上，圈定了Au-Ⅰ、Au-Ⅱ、Au-Ⅲ、Au-Ⅳ、Au-Ⅴ、Au-Ⅵ共6处金矿找矿靶区，经钻探工程验证，在Au-Ⅰ靶区发现了隐伏金矿体。综合对比研究区内圈定的找矿靶区的地质条件与区域内已发现金矿床的成矿地质条件，推测研究区内圈定的金矿找矿靶区有巨大的找矿潜力。 |
| 英文摘要: |
| The study area is located in the PaleoProterozoic Baoule-Mossi domain in the southern part of the West African Craton， which is the most important gold deposit area in West Africa. Based on systematic statistical analysis of geochemical parameters such As the content， concentration ratio and coefficient of variation of the seven elements Au， Ag， As， Cu， Pb， Co and Cr in the soil of the study area， it is concluded that Au is the main metallogenic element in the area with high concentration ratio and high coefficient of variation， and As has a high concentration ratio and coefficient of variation. In addition， the anomaly range partially coincides with the anomaly range of Au， which is the indicator element of Au. The measurement area is 5 km2， the sampling network is 800 m×200 m， and a total of 594 samples are collected. On the basis of soil geochemical survey anomalies， geological characteristics and regional metallogenic geological background in the study area， six gold prospecting targets of Au-Ⅰ， Au-Ⅱ， Au-Ⅲ， Au-Ⅳ， Au-Ⅴ and Au-Ⅵ have been delineated， and concealed gold ore bodies have been found in the Au-Ⅰ target area through drilling engineering verification. By comparing the geological conditions of the target area and the metallogenic geological conditions of the gold deposit found in the area， it is inferred that the target area has great prospecting potential. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |