煤田地质与勘探2025，Vol.53Issue(10)：204-224,21.DOI:10.12363/issn.1001-1986.25.06.0424
全球钾盐经典成矿模式及其地球物理勘探方法的研究现状与展望
Global representative metallogenic models and geophysical exploration methods of sylvite:Current research status and prospects
摘要
Abstract
[Background]Sylvite serves as a strategic mineral resource that plays a significant role in ensuring food safety and sustainable agricultural development,with approximately 90％of global potash resources used for potassium fertilizer production.However,developing countries such as China have long faced the challenges of heavy dependence on potash imports and insufficient potash resource continuity.Such a supply and demand framework causes China to speed up research on potash metallogenic patterns and technical innovations in potash exploration.This will help over-come resource bottlenecks.[Objective]This study presented a systematic summary of global potash metallogenic mod-els and investigated the approaches of potash exploration in deep and structurally complex areas,aiming to provide the-oretical support for improving potash exploration efficiency.[Methods]Focusing on the geological settings and condi-tions of potash mineralization in marine and continental environments,the study analyzed potash enrichment mechan-isms from the perspective of key factors,including tectonic activity,evaporation environments,and brine sources.hh-Furthermore,this study reviewed the current research status and application progress in the geophysical exploration methods of potash,specifically exhibiting the application effects of geophysical technologies such as gravity,electro-magnetic,seismic,and logging methods in potash exploration.[Results and Conclusions]Sylvite metallogenic models reflect the coupling effects of multiple factors,including climate,structures,and provenance.Gravity exploration identi-fies salt dome structures based on density differences.In contrast,electromagnetic methods are sensitive to high-salinity brines,while seismic methods allow for fine-scale characterization of the spatial morphology of potash layers when com-bined with pre-stack depth migration technology.However,deep concealed ore bodies are shielded by structural deform-ations,leading to significant attenuation of seismic signals.Furthermore,electromagnetic methods suffer from insuffi-cient vertical resolution in low-resistance areas,while shallow gravity exploration is prone to terrain interference.These challenges still limit the precision and depth of potash exploration.Nevertheless,multidisciplinary integration,the ap-plication of intelligent exploration technologies,and in-depth research on potash metallogenic models will contribute to more accurate and efficient exploration and development of potash resources.This provides theoretical bases for break-throughs in the evaluation of potash resources in global complex basins and offers innovative solutions for deep potash exploration.关键词
钾盐资源/富钾机制/钾盐成矿模式/地球物理勘探方法/全球范围Key words
sylvite resource/sylvite enrichment mechanism/sylvite metallogenic model/geophysical exploration meth-od/global scope分类
地质学引用本文复制引用
曲平,岳航羽,黄晓兵,宋炯..全球钾盐经典成矿模式及其地球物理勘探方法的研究现状与展望[J].煤田地质与勘探,2025,53(10):204-224,21.基金项目
中国地质调查局地质调查项目(DD20230206508,DD20243193,DD20230388) （DD20230206508,DD20243193,DD20230388）
