Geologic and Geotechnical Core Logging

Our geologists have significant core logging experience with a wide variety of deposit types. We collect the geotechnical data our clients need, ranging from a simple recovery/RQD log, to a detailed geotechnical log capable of estimating RMR, GSI and Q rock mass ratings.

Experienced Loggers and Geotechs


Tamarack’s geologists have over 50 years of combined core logging experience, so our team has the expertise necessary to be turn key in the core shed. We’re familiar with many of the latest core logging and core photography technologies, and we’ve developed our own core logging software to get your project started.

Our Process


Tamarack can work with your team to build a core logging process from the ground up. We are also effective operating in established programs with proven core logging methods. We’re helpful in improving systems as needed, and we’re eager to contribute to the interpretation of results.

When starting a project from scratch, we begin by understanding the end goal. From there we tailor the logging to capture the data needed to achieve the projects objectives.

Click below to learn more about our drilling management and geological modeling.

Typical Data We Capture


The data we record can easily be used in any 3D modeling program.

  • Geotech (Recovery, Rock Quality Designation, Hardness, etc.)

  • Lithology (Geologic Unit, Rock Type, Bed Thickness, Color, Bedforms, etc.)

  • Alteration (Alteration Type, Style, Intensity)

  • Structure (Structure Type, Intensity, Infill, Orientation)

  • Mineralization (Mineralization Type, Strength, Mineralogy, Orientation etc.)

  • Other information that is important to your project

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Drilling Management and Planning