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青海省东昆仑纳赤台地区正、负异常特征及找矿方向

  • 安朝|李德彪|柴云|赵明福
  • 作者单位:
  • 青海省地质调查局|青海省地质调查局|青海省地质调查局|青海省地质调查局
  • 基金项目:

  • 青海省省级财政资金地质勘查项目(2017042025jc006)
  • 详细信息:

  • 作者简介:
  • 安朝(1990—),男,河北保定人,工程师,硕士,主要从事地球化学勘查工作;西宁市城西区胜利路地矿花园C座3楼,青海省地质调查局,810100;E-mail:anzhaoq1234@163.com
  • 通讯作者:
  • isnull
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Characteristics of positive and negative anomalies and prospecting direction in Nachitai area,East Kunlun,Qinghai Province

  • English Author:
  • Qinghai Geological Survey|Qinghai Geological Survey|Qinghai Geological Survey|Qinghai Geological Survey
  • Unit:
  • 摘要
  • 在线预览
  • 参考文献

摘要:

随着非线性统计科学的发展,越来越多的理论随之诞生,分形理论就是其中之一,而将其应用在地球化学正、负异常的圈定中不仅能保证原始数据的全面性,同时大大提高了圈定范围的准确性。选取纳赤台地区1∶5万图幅北半幅为研究区,以原始地球化学数据为基础,利用分形方法中含量-面积法对研究区正、负异常重新圈定,效果较好,并对正、负异常进行了叠加研究。根据研究区地质特征、地球化学特征,并结合分形理论圈定的正、负异常,在研究区内圈定了4处找矿靶区,为进一步找矿工作指明了方向。

关键词:

地球化学异常;分形方法;正、负异常特征;找矿靶区;找矿方向;纳赤台地区

Abstract:

With the development of nonlinear statistical science,more and more theories have come into being,The fractal theory is one of them.Its application to the delineation of geochemical positive,negative anomalies not only guarantees the comprehensiveness of the original data,but also greatly improves the accuracy of the delineation range.In this paper,the northern half of 1∶50 000 map of Nachitai area is selected as the research area.Based on the original geochemical data,the paper uses the content-area method in the fractal method to delineate the positive and negative anomalies in the study area,achieving satisfactory effect,and at the same time,the superposition of the positive and negative anomalies is studied.According to the regional geologic and geochemical characteristics,and the positive and negative anomalies delineated by fractal theory,4 prospecting targets are delineated in the study area,pointing out the direction for next-step prospecting work.

Keywords:

geochemical anomaly;fractal method;characteristics of positive and negative anomaly;prospecting target;prospecting direction;Nachitai area