[admin]

For mining operators and geologists requesting a Geomative GD-12 quotation, the starting point is a model-specific configuration. The GD-12 is part of Geomative’s current resistivity and induced polarization product range, alongside the GD-22 and GD-32. The GD-10 and GD-20 also appear in the company’s product catalog.

These instruments differ in acquisition capacity and transmitter specifications. Selecting a system requires matching those differences to the geological objective, survey layout, field conditions, and processing workflow.

Why Mineral Exploration Teams Need Appropriate Transmitter Capacity

Deep targets, difficult electrode contact, and electrical interference can make resistivity and IP acquisition challenging. Sufficient transmitter capacity can help establish usable measurements, but maximum power alone does not determine exploration depth or interpretation quality.

Before choosing equipment, teams should assess expected electrical contrasts, target dimensions, survey geometry, and site noise. A representative field trial can help establish whether the proposed configuration produces repeatable measurements suitable for interpretation.

Field quality checks also matter. Identifying questionable readings while crews remain on site allows problems to be investigated before the survey moves elsewhere.

Geomative GD Series: Resistivity and IP Imaging Systems

The GD family includes both single-channel and multichannel instruments. The following comparison summarizes selected specifications from the current GD-12/22/32 technical table.

Model	Receiving channels	Maximum transmit power	Maximum transmit voltage	Maximum transmit current
GD-12	1	7.2 kW	1,200 V	6 A
GD-22	6	15 kW	1,500 V	10 A
GD-32	12	15 kW	1,500 V	10 A

The GD-10 is a single-channel instrument. GD-20 specifications depend on the version and options, with up to 9 kW listed as an optional configuration.

These are published instrument ratings. The quotation should identify the operating limits of the complete system, including its power supply, switching equipment, cables, and selected measurement mode.

Practical Value Across the GD Series

For exploration teams, useful equipment capabilities should translate into a workable survey plan.

Transmitter capacity must suit the intended electrical load. Acquisition capacity should match the measurement sequence and required coverage. Electrode layouts and accessories must support the planned deployment environment.

Roll-along acquisition can extend survey coverage, while field data inspection supports quality control. These functions should be evaluated separately from inversion and geological interpretation.

For a GD-12 purchase, request an acquisition-time estimate based on the actual electrode array and measurement schedule. Where productivity requirements justify more receiving channels, compare a GD-22 or GD-32 configuration using the same survey plan.

Technical Specifications That Matter for Mineral Exploration

The current GD-12/22/32 table lists 24-bit A/D conversion and power-line rejection of at least 120 dB. The latter is a specific interference-rejection metric rather than a measure of suppression against every field noise source.

The same table distinguishes full-waveform capability: it is listed for GD-22 and GD-32, but not GD-12. This difference should be considered when defining the required IP acquisition and review workflow.

Procurement teams should examine measurement repeatability, usable voltage ranges, contact-resistance checks, and access to raw observations. An instrument demonstration should use a configuration and acquisition schedule representative of the intended project.

Industry Adaptation Beyond the Mine Site

Electrical surveys can support investigations beyond mineral targeting, including hydrogeological, engineering, and environmental work. However, each application requires appropriate survey geometry, accessories, interpretation, and verification.

A mining project investigating groundwater or possible seepage should define those objectives separately from its mineral exploration program. An electrical contrast may guide further investigation, but it does not independently establish an aquifer, contamination, leakage, or a safe engineering condition.

Any proposed monitoring configuration should also specify maintenance, review procedures, and supporting field measurements.

Complementary Technologies: TEM Systems and the DIGspace Platform

Transient electromagnetic surveys may complement resistivity and IP where the geological target and survey conditions support their use. Geomative’s GT products should be evaluated by their specific deployment arrangements and capabilities.

A single depth range should not be treated as a guarantee across the entire TEM family. Request a model-specific proposal that explains the expected response, practical limitations, and verification plan.

DIGspace provides an ERT workflow that includes data review and online inversion. For projects combining several methods, confirm which data types can be imported, displayed, processed, and inverted. Spatial display of different datasets should not be confused with joint inversion.

Software deliverables should be named explicitly. Geomative Studio documentation lists TXT, Excel, DAT, and URF exports; equivalent support should be checked separately for the proposed DIGspace module. Remote projects should also confirm connectivity requirements and available offline workflows.

Field References: Case Studies

Geomative’s Brazil gold exploration report describes a GD-10 resistivity and IP investigation that identified anomalies of potential mineralization interest and informed recommendations for further investigation. It provides a field reference for the method rather than confirmation that an electrical anomaly establishes a gold resource.

The Beishan lead-zinc mine case involves GT-30 transient electromagnetic work. It illustrates another exploration method within Geomative’s portfolio and should be assessed separately from GD-series performance.

For a GD-12 quotation, request relevant examples with comparable geology and survey objectives. Where available, review the relationship between interpreted anomalies and subsequent drilling, sampling, or exposure.

How to Approach a Quote for Mineral Exploration Equipment

A useful GD-12 quotation request should describe:

• The geological objective, expected target depth, and approximate target dimensions.

• The proposed electrode spacing, profile lengths, and measurement arrays.

• Whether resistivity, IP, or both are required.

• Terrain, access, contact conditions, and known interference sources.

• Required raw-data access, processing software, and export formats.

• Training, technical support, spare parts, and delivery requirements.

Ask the supplier to itemize the main unit, power supply, electrodes, cables, switching equipment, and software. Any booster or additional acquisition hardware should be accompanied by written compatibility information and operating limits.

A complete quotation should also explain what is needed to demonstrate the configuration on a representative test line.

Conclusion

The Geomative GD-12 is a model to evaluate directly when preparing a mineral exploration equipment request. Its suitability depends on the survey requirements, expected measurements, and practical acquisition schedule.

Compare GD configurations using the same project brief, and verify the complete hardware and software workflow before deployment. This approach turns a model-name search into a clear equipment specification and a quotation that can be assessed against the work the exploration team needs to complete.

https://www.geomative.com
Geomative Co., Ltd.

[Author]

Posts