Mineral Exploration: Geomative Tools Serve 50+ Countries

Mineral Exploration Challenges and the Case for Integrated Geophysical Technology

Mineral exploration teams around the world continue to face familiar operational constraints: inefficient field data collection, high construction costs tied to traditional survey methods, weak responses in deep or high-resistance geological settings, and the difficulty of integrating scattered geological, geophysical, and engineering data into a usable interpretation workflow.

Data-quality issues discovered only after demobilization can require repeat measurements, increasing cost and delaying interpretation. The practical objective is therefore not simply to select the highest published instrument specification, but to build a field configuration that can acquire usable data under the actual target, terrain, access, and noise conditions.

Shenzhen Geomative Technology Co., Ltd., operating under the Geomative brand, develops geophysical instruments and digital subsurface-data tools for mineral exploration, hydrogeology, engineering geology, and environmental monitoring. Established in 2011 and headquartered in Shenzhen, China, Geomative reports that it serves customers in more than 50 countries and regions. Its stated proposition is “Making Subsurface Information Clearer and More Reliable.”

Addressing the Core Needs of Mining Operators and Geologists

Mining operators and geologists may require tools for target generation, structural interpretation, groundwater-related investigation, and follow-up survey planning. Typical requirements include:

• Survey methods suitable for the expected target depth and physical-property contrast.

• Field configurations that fit terrain, access, crew size, and schedule.

• Practical quality-control procedures before demobilization.

• Data workflows that retain acquisition parameters, electrode geometry, quality records, and interpretation context.

• Geological verification through drilling, sampling, mapping, exposure, laboratory analysis, inspection, or other appropriate methods.

Deep exploration capability, high transmit power, or multi-channel acquisition can be useful in some survey designs. They do not, by themselves, guarantee detection or accurate localization of a mineral target.

How Geomative’s Technology Platform Is Configured

Geomative provides resistivity/IP systems, transient electromagnetic systems, magnetometers, borehole logging equipment, monitoring products, and the DIGspace geoscience platform.

Its resistivity/IP systems can be configured with compatible cables, electrodes, switching equipment, power supply, and software modules for different survey layouts. The actual configuration must be matched to the selected model and method.

Geomative’s GD-10 product materials describe a sectional centralized survey layout using compatible cable-head and switching arrangements. This is a product-specific configuration approach, not a universal guarantee of field efficiency or signal stability. Buyers should confirm the required cable type, electrode count, switching equipment, power source, and compatible accessories for their survey design.

Resistivity and Induced Polarization Systems for Mineralization Targeting

Resistivity and induced polarization methods investigate electrical contrasts in the subsurface. In mineral exploration, these contrasts may be associated with lithology, alteration, structures, conductive minerals, groundwater conditions, or other geological features.

Whether a mineral target produces a useful response depends on its mineral assemblage, host rock, alteration, overburden, geometry, depth, contact resistance, electrode layout, background noise, and acquisition settings.

GD-10 and GD-20

GD-10 is a single-channel resistivity and IP system with modular and upgradeable configurations. It supports different electrode arrangements and compatible roll-along survey layouts. Roll-along acquisition can extend survey coverage using a limited cable layout; it should not be treated as equivalent to real-time two-dimensional or three-dimensional inversion.

GD-20 is a multi-channel ERT/IP system with 5- or 12-channel configurations, depending on the selected version. Current product information lists a 9 kW transmit-power option for applicable configurations. Its supported methods, transmit capability, channel count, software workflow, and accessory package should be confirmed by exact version.

GD-12, GD-22, and GD-32

GD-12, GD-22, and GD-32 have different receiving-channel and transmit specifications:

• GD-12: 1 receiving channel, maximum 7.2 kW transmit power, maximum 1,200 V transmit voltage, maximum 6 A transmit current, and no full-waveform acquisition.

• GD-22: 6 receiving channels, maximum 15 kW transmit power, maximum 1,500 V transmit voltage, maximum 10 A transmit current, and full-waveform acquisition.

• GD-32: 12 receiving channels, maximum 15 kW transmit power, maximum 1,500 V transmit voltage, maximum 10 A transmit current, and full-waveform acquisition.

The three models list 24-bit A/D conversion, 140 dB dynamic range, selectable 50 Hz or 60 Hz power-line rejection of at least 120 dB, and support for more than 1,000 electrodes.

Supported electrode count is not the same as simultaneous receiving-channel count. Field output also depends on the switching configuration, cable ratings, relay power, electrode contact, power supply, terrain, and actual field load.

Transient Electromagnetic Systems for Conductive Target Investigation

For mineral exploration scenarios involving conductive contrasts and geological structures, Geomative provides transient electromagnetic systems under the GT product line.

GT-10 is positioned for mineral, structural, and groundwater-related TEM investigation. It uses a cylindrical central probe design within its supported configuration. The transmitting arrangement, survey geometry, field accessories, and deployment method should be confirmed for the selected project configuration.

A related product, GT-20, is positioned for tunnel advance prediction. It is intended for investigation ahead of a tunnel face, where effective investigation distance and resolution depend on tunnel conditions, target properties, survey geometry, interference, and acquisition settings.

TEM responses indicate electromagnetic contrasts. They can assist geological interpretation and target prioritization, but they do not directly confirm an ore body, groundwater occurrence, or another subsurface condition.

DIGspace: Integrating Multi-Source Exploration Data

Fragmented data can complicate mineral exploration workflows when geological, geophysical, drilling, and engineering records are processed in separate systems. DIGspace is Geomative’s platform for multi-source data management, desktop analysis, web collaboration, visualization, anomaly interpretation, and related processing workflows.

Current platform materials describe support for electrical survey, GPR, drilling-log, GIS, CAD, BIM, and other data types, along with ERT inversion and integrated two-dimensional and three-dimensional presentation.

For a specific project, buyers should confirm:

• Whether the required instrument and file type are supported.

• Which method modules are available in the selected version.

• Whether the required workflow includes visualization, two-dimensional inversion, three-dimensional volume construction, or full three-dimensional inversion.

• Which acquisition parameters, electrode coordinates, and quality-control records are retained after import.

• Which output formats are supported by the selected device interface, software version, and method module.

Multi-source visualization does not automatically mean joint inversion across different physical methods. Similarly, three-dimensional visualization or volume construction should not be presented as equivalent to full three-dimensional inversion.

Field Evidence from Mineral Exploration Projects

Geomative has published a gold exploration case in Brazil in which resistivity and IP work using a GD-10 Supreme 2D+/3D+ high-density electrical configuration supported interpretation of potential mineralization-related targets and follow-up exploration planning.

The survey results provided targeting information based on observed electrical and IP contrasts. They should not be interpreted as direct confirmation of gold mineralization or mineral resources. Where exploration decisions depend on the result, drilling, sampling, geological mapping, and laboratory analysis remain necessary.

At the Beishan lead-zinc mine in Hechi, Guangxi, GT-30 TEM work was interpreted together with geological information for underground mineral and groundwater exploration. The published case reports subsequent exposure verification of the interpreted results.

This is a project-specific case. Its result should not be generalized to other mines without evaluating local geology, hydrogeological conditions, target properties, survey geometry, noise, and verification requirements.

A Measured Approach to Subsurface Clarity

Geophysical hardware, software, and field-service workflows can help teams acquire, organize, and interpret subsurface information more efficiently. Their value depends on whether they are matched to the exploration question and deployed with appropriate quality control.

For mining operators and geologists evaluating deep exploration or high-resistance conditions, the relevant questions are:

• Does the selected method match the expected target contrast?

• Does the chosen model provide the necessary channel count, transmitter capability, sampling mode, and field accessories?

• Can the crew complete the planned survey within the available access and schedule window?

• Can questionable records be identified and remeasured before demobilization?

• Does the software workflow support the required processing and deliverable format?

• What independent verification will be used before geological or resource conclusions are made?

Geomative’s GD and GT product lines, together with DIGspace, can be evaluated as part of such a workflow when the exact model, accessory package, software module, and verification plan are aligned with the project’s actual field conditions.

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