摘要
辽宁阜蒙县东五家子地区大地构造位置处于华北陆块北缘,义县中生代叠加盆岭系与北镇凸起接触部位北部,位于区域北东向大巴-后三角山大型韧性剪切带上,该韧性剪切带分布着众多金矿床,其中最典型的金矿床以排山楼金矿为代表。近些年,综合找矿方法已被广泛应用,并取得了较好的找矿效果,该方法是将地质找矿方法、地球化学找矿方法、地球物理找矿方法等进行综合运用。为在东五家子地区实现找矿突破,在研究区内投入了1∶10000地质调查、土壤地球化学测量、激电中梯测量、槽探及钻探工程等方法手段。通过1∶10000土壤地球化学测量数据的挖掘,确定了研究区以Au为主攻矿种,并运用化探数据回归建模及结合物探方法在研究区内圈定了1处找矿潜力较大的找矿靶位,经工程验证取得了较好的找矿效果。实践表明,运用综合找矿方法在极大程度上提高了找矿效果,并为今后在该区域内开展矿产勘查工作提供了一定的指导思想和理论依据。
The Dongwujiazi area,Fumeng County,Liaoning Province lies in the contact area between the Mesozoic superimposed basin-range system and Beizhen uplift in Yixian County,northern margin of the North China block.It is situated also in the large northeast-trending Daba-Housanjiaoshan ductile shear zone,which hosts many gold deposits,of which the Paishanlou gold deposit is a representative.To realize new breakthrough of ore-search in this area,this work applied the integrated prospecting method to the further survey.It included 1∶10000 geological survey,soil geochemical measurement,IP ladder exploration,trench exploration and drilling.Through the mining of 1∶10000 soil geochemical survey data,it is determined that Au is the main ore in the study area,and a prospecting target with great prospecting potential was delineated by using regression modeling of geochemical data combined with geophysical prospecting methods.A good prospecting effect was achieved and verified by engineering examination.The practice shows that the application of the integrated prospecting method can enhance the prospecting efficiency to a great extent,providing a certain guiding ideology and theoretical basis for mineral exploration in this area in the future.
作者
袁和
许云鹏
YUAN He;XU Yunpeng(Liaoning Fourth Geological Team Limited Liability Company,Fuxin,Liaoning 123000)
出处
《地质与勘探》
CAS
CSCD
北大核心
2021年第2期339-350,共12页
Geology and Exploration
基金
辽宁省国土资源厅省级地质勘查项目(编号:辽国土资[2017]34号)资助。
关键词
土壤地球化学测量
数据建模
激电中梯测量
金矿
东五家子
阜蒙县
辽宁
soil geochemical survey
data modeling
IP medium ladder survey
gold deposit
Dongwujiazi
Fumeng County
Liaoning Province
作者简介
第一作者:袁和(1985年-),男,2018年毕业于桂林理工大学,获硕士学位,高级工程师,从事矿床学、地球化学研究。E-mail:yuanhe1985@126.com。;通讯作者:许云鹏(1970年-),男,2006年毕业于中国地质大学,高级工程师,从事地质矿产勘查工作。E-mail:450302174@qq.com。
