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[an error occurred while processing this directive]Evaluation of Gold Resource Potential in Qixia-Daliliuxing Area,Shandong Province
Received date: 2019-04-28
Revised date: 2019-09-04
Online published: 2020-02-26
Jiaodong area is the largest gold-producing area in China,and its gold prospecting has been receiving great attention.Among them,Qixia-Daliuxing area is located in the Qixia-Penglai gold ore metallogenic belt in central Jiaodong,which is an important gold metallogenic area in Jiaodong.Based on the basic geological data,research degree and geological conditions in this area,this paper conducts prediction and evaluation of mineral resources.The gold resources in Qixia-Daliuxing area were predicted by the integrated information mineralization series prediction method.Compared with other methods,this method can make full use of relevant geological data,and has a targeted extraction of geological information.At the same time,it has a stronger ability to comprehensively use computers for calculations,and can carry out more three-dimensional research.Therefore,it’s better to guide the prospection in this area.In this work,the formation mechanism,metallogenic regularity,ore-controlling conditions and prospecting indicators of the gold deposits in Daliuxing-Qixia area were summarized through in-depth analysis of a large amount of data obtained,combined with typical deposit research.Comprehensive geological,geophysical and geochemical information was used to guide the prediction of mineralization in the area and the prediction of deep and edge mineralization of known deposits.We analyzed the gold ore metallogenic model and regional metallogenic model by research of typical ore deposits.Based on the metallogenic factors in the Daliuxing-Qixia area,combined with regional metallogenic regularities,ore-controlling conditions,metallogenic geological conditions and types of deposit genesis,the geological forecasting factors were divided and the prediction model was established to further accurately predict the resource potential of the ore-exploring target area.The qualitative prediction,quantitative prediction and extrapolation estimation of the gold resources in the study area were carried out by using feature analysis method,comprehensive geological information method and limited extrapolation of known borehole data.The study area is divided into 4 orefield-level gold deposit metallogenic prediction areas and 27 minimum prediction units,and the qualitative prediction is mainly based on the feature analysis method.There are 8 A-level areas,12 B-level areas,5 C-level areas and 2 D-level areas.The geological body volume method was used to predict the resource amount.A total of 27 prospecting target areas are delineated in the study area.The predicted amount of gold metal(334?) was 2 810 380 kg,including the identified gold resource reserves of 3 106 321 kg and unidentified forecast gold metal quantity (334?) of 24 140 510 kg.
Xin HUANG , Qian SONG , Yongjun WANG , Lijun SHEN , Yuzhen ZHU , Chao SUN . Evaluation of Gold Resource Potential in Qixia-Daliliuxing Area,Shandong Province[J]. Gold Science and Technology, 2020 , 28(1) : 21 -31 . DOI: 10.11872/j.issn.1005-2518.2020.01.037
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