基于航空地球物理方法的哈萨克斯坦中部矿区预测资源评价

Zh Saurykov, S Istekova, A Sirazhev, Zh Aidarbekov
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引用次数: 0

摘要

目的。这项研究的目的是为哈萨克斯坦中部的进一步地质研究创造一个高质量的地球物理基础,以确定研究地区的地质结构,确定有希望进行进一步地质勘探的地区,并分析各种矿物的异常分布。方法。该研究使用了航空磁、航空伽马射线能谱和重力(地面)测量方法。利用获得的新的航空地球物理资料,对研究区地质构造进行了补充研究,并建立了研究区地质构造模型。利用伽玛能谱分析资料对侵入杂岩体进行详细作图,研究其岩性非均质性。发现。对实地研究资料的处理和解释,结合地质-地球物理数据分析的结果,使研究地区的地质构造得以细化,并提出了找矿复合体的模型。发现了钾、铀、钍异常分布区域,为评价隐伏岩浆块体的构造非均质性,揭示与金、铜多金属和稀有金属成矿的联系提供了可能。提出了进一步进行详细地质勘探的建议,包括探矿钻探。创意。研究表明,航空地球物理方法,如航空磁、航空伽马能谱测量,在研究矿区地质构造,并结合精细重力勘探识别研究区火成岩和沉积岩的岩性非均质性方面具有很高的效率。新的科学方法技术及其基础上的地质构造模型为研究区成矿前景评价提供了契机。实用价值。已确定的有开采潜力的地区值得进一步研究和勘探。综合利用地质-地球物理数据将有可能更精确地确定放射性异常的性质,并揭示它们与找矿层的关系。总的来说,研究成果有助于提高工作效率,降低地质调查成本。
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Predicted resource assessment of Central Kazakhsta ore districts based on airborne geophysical methods
Purpose. The research is aimed at creating a high-quality geophysical basis for the additional geological study of Central Kazakhstan in determining the geological structure of the study area, identifying promising areas for further geological exploration, as well as analyzing the anomalous distribution of various minerals. Methodology. The research uses the methods of aeromagnetic, airborne gamma-ray spectrometry and gravimetric (ground) surveys. The obtained new airborne geophysical data are used for additional study of the geological structure of the district and the creation of a model of the geological structure of the study area. Gamma-ray spectrometry data analysis is conducted for detailed mapping of intrusive complexes and study of their lithological heterogeneity. Findings. The processing and interpretation of the materials of the conducted field studies in combination with the results of the geological-geophysical data analysis made it possible to refine the geological structure and to present a model of ore-prospecting complexes in the study area. Areas with an anomalous distribution of potassium, uranium, and thorium have been identified, which make it possible to assess the structural heterogeneity of hidden magmatic massifs and to reveal a connection with gold, copper-polymetallic and rare-metal mineralization. Recommendations for further detailed geological exploration, including prospecting-exploration drilling, are given. Originality. Research has shown the high efficiency of airborne geophysical methods, such as aeromagnetic and airborne gamma-ray spectrometry surveys to study the geological structure of ore areas, and in combination with detailed gravimetric exploration to identify lithological heterogeneity of igneous and sedimentary rocks in the study area. New scientific-methodological techniques and the geological structure model based on them gave an opportunity to assess the prospect of the study area for ore mineralization. Practical value. The identified promising areas for mining of minerals are of interest for further research and exploration. The integrated use of geological-geophysical data will make it possible to determine more precisely the nature of radioactive anomalies and to reveal their relationship with ore-prospecting horizons. In general, the research results contribute to increasing the efficiency and reducing the geological survey costs.
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CiteScore
1.70
自引率
0.00%
发文量
148
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