Study on Metallogenic Regularity and Prospecting Prediction of Shanyang-Shangnan Gold Deposits in Shaanxi Province
Received date: 2022-11-21
Revised date: 2023-05-28
Online published: 2023-09-20
In recent years,many types of gold deposits have been found in Wangjiaping-Shangnan area,Shaanxi Province.Due to the lack of detailed antomy of the typical deposits in the region,and insufficient understanding of the ore-controlling factors,occurrence regularity,and genesis of the regional gold deposits,the metallogenic regularity and propecting direction in the region are not clear,which restricts the propecting breakthrough in this area.On the basis of investigating the regional geological structure background,the geological characteristics,ore-controlling factors and ore-bearing laws of typical gold deposits in Wangjiaping-Shangnan area were systematically sorted out.Combined with the characteristics of fluid inclusions in typical gold deposits,the spatial distribution characteristics,metallogenic conditions and the occurrence and mineralization patterns of gold deposits(points)in the area were summarized.The results show that the gold deposits(points) in the area are controlled by the nearly EW-trending Shanyang-Fengzhen fault,Zhen’an Banyanzhen fault,or their secondary fault belts.They are developed in the interlayer faults of specific strata and controlled by dual factors of faults and strata,the gold deposits(spots)in the area are generally enriched in the nearly EW-trending zonal segmentation.The gold orebodies in different sections are controlled by different forms of faults and overall lenticular output.According to the metallogenic characteristics,ore-controlling factors and metallogenic regularity of the mining area,the prospecting prediction model of gold deposits in the area was established,and five prospecting target areas were predicted in combination with the distribution range of strata,structures and geochemical anomalies,which provides new ideas and new directions for the next step of ore exploration work in the area.
Zhongping FAN , Wang ZHANG , Wei WANG . Study on Metallogenic Regularity and Prospecting Prediction of Shanyang-Shangnan Gold Deposits in Shaanxi Province[J]. Gold Science and Technology, 2023 , 31(4) : 560 -579 . DOI: 10.11872/j.issn.1005-2518.2023.04.178
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