Geophysical Services

Enmintech provides a range of geophysical surveys in cooperation with AusThai Geophysical. Our team of geophysicists and surveyors is highly experienced in working throughout Indonesia using a variety of survey methods including: UAV High Definition Magnetics and Radiometrics, Passive Seismic HVSR, Deep IP, and ERT — to discover what is hidden beneath the earth’s surface.

Geophysical Services

Geophysical Services

Enmintech provides a range of geophysical surveys in cooperation with AusThai Geophysical. Our team of geophysicists and surveyors is highly experienced in working throughout Indonesia using a variety of survey methods including: UAV High Definition Magnetics and Radiometrics, Passive Seismic HVSR, Deep IP, and ERT — to discover what is hidden beneath the earth’s surface.

Tailored Solutions

Our team will discuss your project with you, evaluate the geological setting, and then design a program to discover what is hidden below. Each mineral setting requires analysis and selection of the right technique and this is where our worldclass geophysical expertise sets us apart.

UAV High Definition Magnetics

High definition magnetic surveys are carried out using the highly sensitive GEMS magnetometer mounted beneath a DJI M600 UAV, flying at less than 100m from the surface.

Each survey is carried out following the terrain source at a constant height resulting in high definition magnetic information that is then processed at our supercomputer processing facility in Bangkok.

Interpretation and analysis of the data by master geophysicist Gerard McNeill produces highly detailed information on subsurface structures and anomalies.

Passive Seismic HVSR

A new geophysical technique for discovering voids, stratigraphic layers, quartz veins, bedrock and aquifers. Relatively inexpensive, unobtrusive and fast passive seismic is helping geologists and engineers to define subsurface geology.

We use the world-leading TROMINO Passive HVSR receivers. The TROMINO is a self-contained instrument that weighs about 1kg and measures ambient seismic waves, commonly referred to as passive seismic, which are caused by wind, waves, and manmade vibrations, and is used for geological and engineering applications.

One of the most common applications for passive seismic is estimating the thickness of low velocity transported deposits, or highly weathered rock, sitting above higher velocity hard bedrock. This can be applied to paleo channel mapping for tin, nickel and alluvial mineral deposits, estimating cover thickness ahead of drilling programs, void and aquifer detection for environmental studies.

Deep Induced Polarisation

Deep IP is a technique for discovering deeply buried mineral deposits. The technique uses an array of sensors placed in a grid over the target area and then a range of alternating current frequencies are charged into the earth and measured.

The resulting data is then processed, analysed, and interpreted to identify targets for drilling. We have been particularly successful with this technique for identifying porphyry deposits in Indonesia up to 600m below the surface.

Reprocessing Data Sets

With advances in technology for software and computing power, it can be useful to reprocess data that was collected in the past. Our geophysicists use the latest processing software combined with extremely powerful computers to reprocess data and then analyse and interpret.

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