MobileMT geophysical surveys are a new generation of airborne electromagnetic (EM) technology that allow explorers to \u201csee\u201d resistivity structures in the subsurface from near surface to well over a kilometre deep, quickly and cost-effectively.<\/p>\n\n\n\n
MobileMT is an airborne EM system developed by Expert Geophysics. It belongs to the AFMAG (audio-frequency magnetics) family of methods and uses natural<\/em> electromagnetic fields (from global lightning activity and ionospheric currents) instead of an artificial transmitter. The system measures:<\/p>\n\n\n\n By combining these measurements over a broad frequency range (typically ~25 Hz to 20 kHz), MobileMT derives high-resolution resistivity models of the subsurface. <\/a><\/p>\n\n\n\n Unlike traditional time-domain EM (TDEM) systems that rely on controlled pulses, MobileMT continuously records natural fields and processes them into multiple frequency \u201cwindows,\u201d giving sensitivity to both shallow and deep structures in a single survey. <\/a><\/p>\n\n\n\n A typical survey layout includes:<\/p>\n\n\n\n Because it\u2019s airborne, a survey can cover thousands of line-kilometres in a matter of days, even in remote or rugged terrain.<\/p>\n\n\n\n Compared with conventional airborne EM methods, MobileMT offers several important benefits:<\/p>\n\n\n\n MobileMT is particularly attractive for:<\/p>\n\n\n\n Beyond mineral exploration, the method is also being researched for geothermal, groundwater and broader structural geology mapping where deep resistivity information is valuable. <\/a><\/p>\n\n\n\n A MobileMT project typically fits into an exploration workflow as follows:<\/p>\n\n\n\n Because MobileMT images both near-surface and deep responses in a single dataset, it helps reduce ambiguity between shallow conductive cover and genuine bedrock targets, improving confidence before committing to expensive drilling. <\/a><\/p>\n\n\n\n As exploration moves deeper and into more complex terrains, technologies that can provide reliable, deep-penetrating geophysical images are becoming indispensable. MobileMT stands out because it:<\/p>\n\n\n\n For explorers, MobileMT geophysical surveys offer a powerful way to de-risk projects, discover hidden mineral systems and extend the life of existing operations by revealing what lies beyond the reach of traditional airborne EM.<\/p>\n","protected":false},"excerpt":{"rendered":" MobileMT geophysical surveys are a new generation of airborne electromagnetic (EM) technology that allow explorers to \u201csee\u201d resistivity structures in the subsurface from near surface to well over a kilometre deep, quickly and cost-effectively. What is MobileMT? MobileMT is an airborne EM system developed by Expert Geophysics. It belongs to the AFMAG (audio-frequency magnetics) family […]<\/p>\n","protected":false},"author":1,"featured_media":273,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_joinchat":[],"footnotes":""},"categories":[3],"tags":[],"class_list":["post-275","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-projects"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n
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<\/li>\n<\/ul>\n\n\n\nHow does a MobileMT survey work?<\/strong><\/h3>\n\n\n\n
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<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\nApplications in mineral exploration<\/strong><\/h3>\n\n\n\n
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<\/strong> Mapping sulphide-rich structures, alteration halos and feeder zones at depth, supporting target generation for copper, nickel, zinc, gold and polymetallic deposits.\u00a0<\/a><\/li>\n\n\n\n
<\/strong> Deep fault zones, basin structures and conductive horizons important for critical mineral deposits can be imaged to depths suitable for modern exploration drilling. Recent MobileMT programs have been deployed on uranium and copper projects to refine drill targeting.\u00a0<\/a><\/li>\n\n\n\n
<\/strong> MobileMT can map structures beneath or around existing operations, identifying new ore lenses or extensions below previous drilling and old mine workings.
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<\/strong> For under-explored terrains, the method quickly establishes a resistivity framework that highlights major faults, basin architecture and prospective conductive corridors, guiding follow-up ground EM and drilling.\u00a0<\/a><\/li>\n<\/ul>\n\n\n\nFrom data to drill targets<\/strong><\/h3>\n\n\n\n
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<\/li>\n<\/ol>\n\n\n\nWhy MobileMT matters<\/strong><\/h3>\n\n\n\n
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