| 石玉莲,黄强,李生虎.东昆仑东段化探采样方法找矿效果探讨——以青海科日南地区为例[J].矿产勘查,2020,11(2):335-343 |
| 东昆仑东段化探采样方法找矿效果探讨——以青海科日南地区为例 |
| Method of geochemical sampling and exploration on prospecting effect of East Kunlun eastern section:Taking Kerinan area in Qinghai as an example |
| 投稿时间：2019-03-13 |
| DOI： |
| 中文关键词: 化探异常 地球化学微景观 采样方法 找矿效果 东昆仑 科日南 |
| 英文关键词: geochemical anomaly,geochemical microlandscapes,method of sampling,ore-searching effect,East Kunlun,Kerinan |
| 基金项目:2016年青海省地质勘查基金项目(编号:2017042033jc014)资助。 |
|
| 摘要点击次数: 1434 |
| 全文下载次数: 106 |
| 中文摘要: |
| 化探作为研究地球化学元素分布规律及浓集特征的重要手段,被广泛应用找矿工作中,因采样方法、密度及介质等因素的不同,直接或间接的影响其找矿效果。通过探讨1∶25万、1∶5万和1∶2.5万3种不同比例尺化探工作采样方法在科日南地区找矿应用中的效果对比,认为1∶25万区域化探扫面工作大致查明了研究区内成矿元素的分带特征、富集规律、指明了找矿靶区；1∶5万化探工作有进一步浓缩和分解异常的作用,但对异常源的定位范围过去偏大；1∶2.5万化探工作其独特的采样方法,能够快速、准确的定位异常源,找矿效果明显优于前两种化探工作。因此,1∶2.5万化探工作作为新的找矿手段,在成矿地质条件优越,但第四系覆盖较严重及矿化体剥蚀程度低的部分东昆仑、柴北缘等地区在找矿工作中可大力推广应用。 |
| 英文摘要: |
| As an important means to study the distribution regularities and concentration characteristics of geochemical elements,geochemical prospecting method has been widely applied to prospecting work,and the difference in sampling method,density,medium and other factors can directly or indirectly influence the prospecting effect. By comparing the application effect of geochemical prospecting method with the sampling scales of 1∶250000,1∶50000 and 1∶25000 in Kerinan,this paper considers that 1∶250000 regional geochemical prospecting work can roughly ascertain the zoning characteristics and concentration regularity of metallogenic elements in the study area,as well as designate prospecting targets; 1∶50000 geochemical prospecting work can further concentrate and discompose anomalies,but the localization range of anomaly source is slightly larger; while 1∶25000 geochemical prospecting work is obviously superior to the former two in prospecting effect due to its characteristics of unique sampling method,rapid and accurate localization for anomaly source. Therefore,as a new prospecting means,1∶25000 geochemical prospecting method can be energetically popularized and applied in some areas of East Kunlun and North Qaidam with superior ore-forming geological conditions,thick Quaternary cover and low denudation degree of ore (mineralized) bodies to achieve prospecting breakthrough. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|