Adrok have secured continued ISO9001 and ISO27001 Quality Systems accreditation. The company continue to be committed to continuous business improvements, customer delight, customer for life and the best supplier management practices as part of Adrok's Core Values.

Adrok expertise 'at-a-glance'

Adrok's multi-talented team includes geologists and geoscientists with plenty of industry experience, providing solutions that inspire knowledgeable decisions. The company help their clients reduce exploration risk and increase exploration value. Adrok's Predrilling Virtual Logging® services help save our clients money, time, energy and are non-invasively kind to the environment. Sustainably Extending Resources Life™

Sulphide Mineralisation

Adrok are perfecting its capabilities to find subsurface sulphides. Like magnetic susceptibility, conductivity and density, relative dielectric permittivity (Ɛᵣ) is a characteristic of rocks and minerals that can be used to discriminate between them using the right geophysical instrumentation. This unique rock and mineral property (i.e. Ɛᵣ) forms the founding physical principals behind Adrok's deep penetrating pulsed radar equipment and how the technology can help target different materials beneath the surface. Other measurements that are great for sulphides are:

(1) Reflected energy
Works well for massive sulfides including deposit styles: Orogenic narrow vein massive sulfide and gold -NI-PGE/layered mafic hosted -Some VHMS/VMS

(2) Changes in Energy and Frequency
Adrok have been working on its library of measured geophysical properties of the rocks beneath the surface to develop a method of providing explorers with the confidence to drill sulfide targets at depth. This extensive library includes orebodies of different types and from around the world.

Harmonic results over greater thicknesses (~>10m): Disseminated sulfides including deposit styles: Porphyry, -SEDEX, some VHMS/VMS, MVT

Groundwater and Deep Aquifer

Adrok is developing precision targeting for Aquifers up to and over 1000m depth, depending on overlying geology.

The ADR tool is a direct targeting tool whereby the Dielectric Permittivity (DC) of rocks within a vertical sequence is measured. Water has a DC of 80, whereas rocks have a DC of 5 to 30.  ADR can be used to differentiate water-rich aquifers by exploiting this difference in Dielectric Permittivity.

Geothermal and temperature mapping

Adrok have developed a proxy temperature measurement using their ADR radiowaves. When a pulse is transmitted into the ground it is reflected, at least in part, by boundaries between materials with contrasting dielectrics. Water has a very high dielectric permittivity (Er = 80) whereas host rocks including sediments, granites, metamorphic rocks all have permittivity values of <15. This natural difference makes water an ideal target for the pulsed radiowaves. A key to measuring relative temperature changes with depth is that a materials dielectric properties typically change with changing temperature. Accordingly, this characteristic can be utilized to help measure temperature changes with depth.

Multiple methods are now used by Adrok to measure relative temperatures at depth beneath the surface. One method is derived from the Stefan-Boltzmans’s Law as described below:

A recent project in Cornwall, UK, demonstrated that heat can also be detected using the pulsed radiowaves' energy readings. Here, we measure the variations within the energy returns of the ADR signal.

Intense troughs of Energy (E) Gamma below a baseline of 0.9990 correlate with known levels of temperature anomalies in the subsurface.

Shallow sub-seabed mapping system

The Adrok Subsea scanner is deployed from an ROV and is controlled remotely from the survey vessel. This allows the survey team to perform data acquisition and obtain other ROV and survey data.

Once all data has been collected it is transferred to and processed at Adrok’s headquarters in Edinburgh, Scotland. The data is processed using the company's own patented software and the findings are presented in detailed reports. Finally, the data is provided to clients for integration into their datasets.

KeyFacts Energy Industry Directory: Adrok