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黄金科学技术 ›› 2019, Vol. 27 ›› Issue (2): 163-171.doi: 10.11872/j.issn.1005-2518.2019.02.163

• 矿产勘查与资源评价 • 上一篇    

基于Surpac软件的归来庄金矿区矿化空间分析

董塬峰1(),司荣军1(),向中林1,冯超臣2,张国权2,张英梅2   

  1. 1. 河南理工大学资源与环境学院,河南 焦作 454000
    2. 山东省鲁南地质工程勘察院,山东 兖州 272000
  • 收稿日期:2018-09-15 修回日期:2018-10-12 出版日期:2019-04-30 发布日期:2019-04-30
  • 通讯作者: 司荣军 E-mail:240828847@qq.com;sirongjun@163.com
  • 作者简介:董塬峰(1994-),男,河南三门峡人,硕士研究生,从事固体矿产勘查、评价与综合利用方面的研究工作。240828847@qq.com|司荣军(1966-),男,山东郓城人,副教授,从事矿床学研究工作。sirongjun@163.com
  • 基金资助:
    国家自然科学基金项目“河南鹤壁地区金伯利岩中地幔包体地球化学研究及岩石区地幔演化”(编号:41773024)和山东省鲁南地质勘查院资助项目“山东省平邑铜石地区金矿成矿规律及深部成矿预测研究”(编号:KY2011-4)

Analysis of Mineralization Space in Guilaizhuang Gold Mining Area Based on Surpac Software

Yuanfeng DONG1(),Rongjun SI1(),Zhonglin XIANG1,Chaochen FENG2,Guoquan ZHANG2,Yingmei ZHANG2   

  1. 1. School of Energy Science and Engineering,Henan Polytechnic University,Jiaozuo 454000,Henan, China
    2. Shandong Lunan Geological Survey Institute,Yanzhou 272000,Shandong,China
  • Received:2018-09-15 Revised:2018-10-12 Online:2019-04-30 Published:2019-04-30
  • Contact: Rongjun SI E-mail:240828847@qq.com;sirongjun@163.com

摘要:

归来庄金矿床位于中生代铜石杂岩体的东部边缘,是我国最大的隐爆角砾岩型金矿床,金矿主矿体受控于F1断层。为揭示主矿体深部矿化空间特征,指导深部找矿,利用Surpac软件建立了归来庄金矿主矿体三维地质模型。在对样品数据进行样长统计分析、处理特高品位等工作后建立块体模型,运用3次距离幂次反比法对金矿床资源量进行估算,并通过生成1-1号和1-2号矿体在不同方向和深度的品位变化趋势曲线,对三维模型金矿体估算结果进行验证与分析。通过建模实现了归来庄金矿体的三维可视化,通过分析建模结果,在深部发现了不整合面上还存在一层矿化体,为磨坊沟式金矿,可作为下一步深部找矿的方向。

关键词: 归来庄金矿, 三维地质模型, Surpac软件, 模型验证, 磨坊沟式金矿, 距离幂次反比法

Abstract:

Guilaizhuang gold deposit is located in the eastern margin of Mesozoic copper-stone complex.It is the largest cryptoexplosive breccia gold deposit in China,and also the largest gold deposit in Western Shandong Province.The mine has been exploited for 25 years since 1993 and has become a resource crisis mine.It is particularly necessary to carry out deep prospecting and peripheral prospecting.For a long time,a lot of scientific research work has been carried out in Guilaizhuang area, fruitful prospecting results and new understanding has achieved,and a lot of data was accumulated.Although the geological exploration degree in this area is very high,deep research is relatively weak.In order to reveal the three-dimensional characteristics of deep mineralization of main orebody and guide deep prospecting,a three-dimensional geological model of main orebody of Guilaizhuang gold mine was established by Surpac software.There are 13 gold orebodies delineated in Guilaizhuang gold deposit.Among them,No.1-1 and No.1-2 gold orebodies are the main orebodies.The orebodies mainly occur in the structural alteration zone of Guilaizhuang F1 fault and the surrounding rocks on both sides of the fault.The orebody is 450 m in scale,600 m in slope depth and 14 m in average thickness.Its occurrence is strictly controlled by alteration zone,which is consistent with the occurrence of F1 fault.After statistical analysis of sample length and processing of super-high grade,a block model was established.The resource amount of gold deposit was estimated by 3 times of power inverse ratio method.The estimation,verification and analysis of the results of the three-dimensional model gold deposit were carried out by generating grade change trend curves of No.1-1 and No.1-2 orebodies in different directions and depths.The three-dimensional visualization of Guilaizhuang gold orebody is realized through modeling,which is of great significance for guiding mine production design.In addition,by analyzing model results,a layer of mineralization body was found on the unconformity surface in the deep part,which provides a direction for further deep prospecting.The three-dimensional visualization geological model and location analysis results based on Surpac software have important reference value for Guilaizhuang gold deposit and its peripheral prospecting and exploration work.

Key words: Guilaizhuang gold mine, 3D geological model, Surpac software, model verification, Mofanggou gold deposit, distance inverse power ratio method

中图分类号: 

  • P618.51

图1

区域地质构造简图(据张国权[6]修改)"

表1

钻孔数据库结构"

数据表名称数据主要字段
孔口坐标表钻孔号、Y坐标、X坐标、Z坐标(孔深)
测斜表钻孔号、孔深、倾角、方位角
地质岩性表钻孔号、岩性分段起点、岩性分段终点、岩性代码
样品分析表钻孔号、采样起点、采样终点、金银等品位

图2

归来庄金矿地层分组图"

表2

钻孔数据库结构"

金品位/(×10-6)显示颜色注释
0.2~1.0黄绿色金矿化体边界品位
1.0~2.5红色金边界品位
>2.5蓝色金最低工业品位

图3

圈定矿体解译线"

图4

归来庄金矿矿体实体模型"

图5

归来庄金矿矿体块体模型(俯视图)"

图6

归来庄金矿1-1号矿体金品位与矿石量随高程变化曲线图"

图7

归来庄金矿块体模型品位分布图(散云显示)"

图8

归来庄金矿1-2号矿体金品位与矿石量随EW向坐标变化曲线图"

图9

归来庄金矿1-2号矿体实体模型"

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