Geophysical and Transport Properties of Salt Rocks Under Stress and Dissolution

Experimental data from dual tests on salt rock cores measures stress-dependent ultrasonic wave velocities, attenuation, and permeability. The dataset includes electrical resistivity tomography and permeability data for water and nitrogen from four geological salt samples. Tests were conducted at the National Oceanography Centre, Southampton, using a high-pressure, room-temperature triaxial flow-through rig.

Use Cases

• Modeling stress-dependent permeability in salt rocks based on ultrasonic and flowmeter data.
• Calibrating geophysical models using precise P- and S-wave velocity and attenuation measurements.
• Assessing dissolution effects on intact and fractured halite for cavern stability predictions.
• Estimating bulk electrical resistivity changes in heterogeneous rock samples under pressure.

Strengths

• Ultrasonic velocity precision of ± 0.1% and accuracy of ± 0.3% (95% confidence) at 600 kHz.
• Bulk electrical resistivity error reported as <1% for homogeneous samples with resistivities <100 Ω m.
• Attenuation accuracy of ± 0.1 dB cm⁻¹ within the 300-1000 kHz frequency range.
• Data sourced from controlled laboratory experiments with automatic confining and pore pressure control.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to the four specific salt sample locations.

Provenance

Source

British Geological Survey (BGS)

Collection Method

Laboratory experiments using a triaxial vessel with ultrasonic sensors, electrodes for electrical resistivity, and integrated flowmeters.

Freshness

Last updated 2026-05-28 13:00:40.545218; freshness should be verified.

Geography

Rock samples from Pakistan, Russia (Tunguska Basin), NW Lancashire (UK), and Sicily.