摘要
昌图锡力位于大兴安岭中南段锡林浩特-霍林郭勒多金属成矿带上,周边已发现花敖包特、扎木钦等大型铅锌银矿床,区域上具有较大找矿潜力。以1∶5万区域地质调查工作为基础,通过在内蒙古昌图锡力地区开展1∶5万和1∶1万土壤测量,确定了异常的范围,缩小了找矿靶区,通过异常的元素组合特征确定找矿的主攻矿种为锰银铅锌矿;利用激电中梯测量、激电测深等物探方法进一步圈定出矿体空间分布位置与形态,为勘探工程布设提供了直接依据;在物化探综合异常套合较好及地表矿化发育地段,开展钻探工程验证,勘探到了锰银铅锌矿体,取得了较好的找矿效果。综合运用物化探方法在该区找矿是可行、有效的,对区域上的矿产勘查工作具有指导意义。
Changtuxili of Inner Mongolia lies in the Xilinhaote-Holingol polymetallic metallogenic belt,south-middle section of the Da Hinggan Mountains,around which the Huaaobaote and Zhamuqin large-size Ag-Pb-Zn polymetal deposits have been found,implying a great potential of further prospecting in this area. Based on regional geological survey of 1∶5000000,the abnormal range and prospecting target area are defined by soil geochemical survey at scales 1∶50000 and 1∶10000. Element association of the anomalies shows that the prospecting should be focused on Mn-Ag-Pb-Zn ores. Location and shape of ore bodies are delineated by IP ladder measurement and IP sounding,providing evidence for layout of exploration projects. Drilling at the sites with geophysical and geochemical anomalies reveals the existence of Mn-Ag-Pb-Zn ores. This practice demonstrates that the integrated geophysical and geochemical methods are feasible and effective in searching for ore deposits and has guiding significance for mineral exploration in the region.
作者
何鹏
张跃龙
苏航
马一行
郭硕
张阔
张天福
HE Peng;ZHANG Yue - long;SU Hang;MA Yi - xing;GUO Shuo;ZHANG Kuo;ZHANG Tian - fu(China Geological Survey Tianfin Geological Survey Center, Tianfin 300170;Qiqihar Branch, Heilongfiang Institute of Geological Survey, Haerbin, Heilongfiang 150036;Development Research Center, China Geological Survey, Belting 100037)
出处
《地质与勘探》
CAS
CSCD
北大核心
2018年第3期501-511,共11页
Geology and Exploration
基金
中国地质调查局项目(编号:DD20160041)资助
关键词
土壤地球化学测量
电法勘探
综合找矿方法
昌图锡力
内蒙古
soil geochemical survey
electric exploration
integrated ore - search method
Changtuxili
Inner Mongolia
