img

QQ群聊

img

官方微信

高级检索

黄金科学技术 ›› 2015, Vol. 23 ›› Issue (1): 34-39.doi: 10.11872/j.issn.1005-2518.2015.01.034

• 矿产勘查与资源评价 • 上一篇    下一篇

青海北祁连区域化探数据处理中异常衬值法的应用及成效

邱炜1,2,3,何皎2,熊寿加2   

  1. 1.青海省地质矿产研究所,青海  西宁   810012;
    2.青海省地质调查院,青海  西宁   810012;
    3.青海省青藏高原北部地质过程与矿产资源重点实验室,青海  西宁   810012
  • 收稿日期:2014-06-25 修回日期:2014-08-16 出版日期:2015-02-28 发布日期:2015-04-07
  • 作者简介:邱炜(1981-),男,山东济南人,高级工程师,从事地球化学研究工作。sleepdream@qq.com
  • 基金资助:

    青海省科技厅项目“北祁连地区喷流沉积型铜多金属成矿系列及靶区优选”(编号:2013-Z-707)资助

The Application and Effect of Abnormal Contrast Method during Regional Geochemical Exploration Data Processing in Northern Qilian,Qinghai Province

QIU Wei1,2,3,HE Jiao2,XIONG Shoujia2   

  1. 1.Qinghai Institute of Geology and Minerals Resources,Xining   810012,Qinghai,China;
    2.Qinghai Institute of Geological Survey,Xining    810012,Qinghai,China;
    3.Qinghai Province Key Laboratory of Geological Processes and Mineral Resources of Northern Qinghai-Tibetan Plateau,Xining    810012,Qinghai,China
  • Received:2014-06-25 Revised:2014-08-16 Online:2015-02-28 Published:2015-04-07

摘要:

北祁连成矿带是青海省内重要的铜铅锌金铁等多金属成矿带,矿床类型繁多,地质特征复杂,具有一定的找矿潜力。但由于整个北祁连地区面积较大,所涉及图幅过多,导致取得的大量化探基础资料没有进行系统地分析研究,而采用传统化探成图方法无法全面地反映真实的异常程度,影响找矿效果,这极大地制约了进一步找矿成果的取得和勘查后备基地的优选。基于以上问题,利用衬值法对青海省北祁连地区大面积区域化探数据进行了处理成图,并将处理后的数据与已有矿床和真值原始数据进行对比验证,实际效果十分理想,克服了常规化探成图方法带来的困难,可为后期大面积区域化探数据的处理工作提供参考。

关键词: 异常衬值法, 化探数据处理, 多金属成矿带, 北祁连

Abstract:

The North Qilian metallogenic belt in Qinghai Province is an important copper,lead,zinc,gold and iron polymetallic metallogenic belt with various deposit types,complex geological features and some prospecting potential. However,due to the large area of the entire North Qilian area and too much mappable unit involved,a large number of obtained basic geochemical data is without systematic analysis.While,the traditional geochemical mapping methods can not completely reflect the true degree of abnormality,and it can affects the prospecting effect,which greatly restrict the further prospecting and optimization of exploration reserve base.Based on the issues mentioned above,the abnormal contrast method is employed for geochemical data processing into map in the North Qilian area of Qinghai Province. Additionally,the processed data is compared validation with existing deposits and the true value of the raw data.The actual results are quite satisfactory and we have overcomed the difficulties of conventional geochemical mapping,which can provide a reference for post-processing of large regional geochemical data.

Key words: abonormal contrast method, geochemical exploration data processing, polymetallic metallogenic belt, North Qilian mountain

中图分类号: 

  • P618.51

[1] 孙海田,邬介人,李锦平.北祁连金属成矿省时—空格局、演化及成矿作用[J].地质学报,1997,71(2):170-179.
[2] 张涛,肖小强.北祁连宁缠河地区花岗岩地球化学特征[J].黄金科学技术,2011,19(1):6-10.
[3] 刘世英,杨金中,巨生成.青海北祁连成矿带遥感异常提取效果分析[J].西北地质,2007,40(3):98-104.
[4] 张新虎,苟国朝,展积宝.北祁连地区主要金属矿床成矿系列及区域成矿作用[J].地球科学进展,1997,12(4):331-339.
[5] 郭彦汝,王瑾,王潇洒,等.北祁连尕大坂铜铅锌矿床特征及形成环境[J].青海大学学报:自然科学版,2014,32(3):51-57.
[6] 张翔,刘建宏,黎志恒,等.北祁连成矿带地球化学块体含矿性评价[J].地质与勘探,2006,42(3):42-48.
[7] 李兆钧.青海北祁连铂族元素找矿前景研究[D].北京:中国地质大学,2013.
[8] 温应江.北祁连铜矿成矿规律及找矿方向[J].青海国土经略,1992,(1):33-39.
[9] 汪等,李佑国,赵伟,等.异常下限衬值滤波法在然乌幅化探数据处理中的应用[J].物探与化探,2013,37(2):344-349.
[10] 秦阳,李佑国.子区异常下限衬值滤波在西藏江达地区的应用[J].中国西部科技,2011,10(21):26-28.

[1] 杨彦, 黄增保, 郭小刚, 许延龙, 颜华. 北祁连榆树沟山金矿区花岗闪长斑岩脉锆石U-Pb年龄、地球化学特征及其地质意义[J]. 黄金科学技术, 2024, 32(3): 387-399.
[2] 刘桂阁,李艳秋,常春郊,丛润祥,张慧玉,陈勇敢,王美娟,朝银银. 区域化探数据处理的综合异常法研究[J]. J4, 2012, 20(4): 67-70.
[3] 刘新会,李根民,张增民,王伟峰,张永文. 东秦岭小河—公馆多金属成矿带中金矿成矿预测[J]. J4, 2011, 19(3): 36-42.
[4] 陈生民. 祁连山地区钨矿特征及找矿前景分析[J]. J4, 2007, 15(2): 26-35.
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
No Suggested Reading articles found!