Triaxial Compressive Strength Tests on Basalt at Elevated Temperature and Pressure

Five experiments provide raw triaxial compressive strength data for hydrothermalised and oceanic crust basalt samples. Tests were conducted at the British Geological Survey's Rock Mechanics and Physics Laboratory using an MTS 815 servo-controlled frame, with confining pressures up to 140 MPa and temperatures up to 120°C. Data includes time, axial force, stress, strain, confining pressure, and temperature, recorded until macroscopic failure or significant post-peak strain.

Use Cases

• Modeling rock strength under subduction zone conditions based on confining pressure and temperature data.
• Calibrating constitutive models for basalt based on axial and circumferential strain measurements.
• Analyzing the relationship between temperature and compressive strength based on tests at 60°C and 120°C.
• Studying failure mechanics of oceanic crust based on triaxial test data until macroscopic failure.

Strengths

• Data originates from five distinct experiments conducted with a high-precision MTS 815 servo-controlled frame.
• Testing conditions are precisely documented, including confining pressures up to 140 MPa and temperature control accurate to ±0.5°C.
• Each data file includes sample details and clearly labelled columns with units.

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.

Provenance

Source

British Geological Survey (BGS)

Collection Method

Triaxial testing undertaken in a laboratory using an MTS 815 servo-controlled stiff frame.

Freshness

Last updated 2026-05-28 14:04:53.268775; freshness should be verified.

Geography

Samples from Osa Peninsula (Costa Rica) and the Cocos Plate.