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Data and codes to demonstrate measurement of shear-wave attenuation anisotropy beneath the Ethiopian Rift

Shear-wave attenuation anisotropy can provide constraints on mantle melt, such as that present beneath the Ethiopian rift. This package contains codes implementing a new methodology to measure such...

Direct-shear experimental data on sedimentary gouge samples under high confining pressure and sliding velocity steps

This dataset contains raw experimental direct shear testing data as presented by "Ougier-Simonin, A., Castagna, A., Walker, R. J., & Benson, P. M. (2018). Frictional and mechanical behavior of...

Ultrasonic Shear Wave Velocity and Attenuation during methane hydrate formation in water saturated sandstone (NERC Grant NE/J020753/1)

This dataset is of laboratory ultrasonic shear wave measurements during methane hydrate formation in water saturated Berea sandstone using pulse echo method. We formed methane hydrate and took...

Experimental direct shear friction dataset for synthetic clay gouges (NERC grant NE/L002469/1)

Friction coefficient and frictional stability (rate & state parameter) data for triaxially compressed direct shear experiments on kaolinite-rich china clay and Mg-montmorillonite fault gouges...

Data (ultrasonic, mechanical) and microstructures of shear failure in Lanhelin granite under upper crustal conditions (NERC Grant NE/M004716/1)

Data has been recorded during triaxial rock deformation experiments where Lanhelin granite samples were subjected to dynamic and half-controlled shear failure. The data consists of mechanical data...

Mechanical data from laboratory shear failure experiments of fluid saturated Westerly granite (NERC Grant NE/S000852/1)

Data recorded during triaxial rock deformation experiments of Westerly granite in the presence of pressurised pore fluids (water). Data consists of mechanical data (load, displacement, confining...

Experimental mechanical data for single crystal shear experiments (NERC grant NE/M000087/1)

Experimental mechanical data for single crystal shear experiments. Grant abstract: In 2011, NERC began a scoping exercise to develop a research programme based around deep Earth controls on the...

Experimental friction data for simulated Nankai Trough gouges sheared under a range of effective normal stress and pore-fluid pressure conditions (NERC Grant NE/S015531/1)

The data are from a suite of friction experiments performed on simulated gouges from the Nankai Trough (Japan). The simulated gouges were prepared by crushing cuttings of Nankai accretionary...

Micromechanics of shear failure in a porous rock: a combined dataset of high-resolution time-resolved 3D x-ray micro-tomography volumes and local 3D strain fields with contemporaneous acoustic emissions and ultrasonic velocity survey waveforms

This dataset shows both the micro-scale mechanisms and acoustic response involved in shear failure of a deforming porous rock. To our knowledge, this is the first such dataset to combine...

Shear-wave splitting Topography at Kilauea (STAK) (NERC grant NE/S009043/1)

The data is from four three-component broadband seismometers deployed along the lower east rift zone during the 2018 Kilauea eruption for four months. The instruments were deployed towards the end...

Structure and Composition of Large Low Shear Velocity Provinces (NERC Grant NE/K006290/1)

Input and output files from first-principles calculations to compute the lattice thermal conductivity, elastic properties, and phase stability of various lower mantle minerals. Spreadsheets of...

Experimental friction data for different grain size quartz gouges under different effective normal stresses (NERC Grant NE/P002943/1)

The data are from a suite of friction experiments performed on 3 different grain size quartz gouges (5, 15 and 30 microns). The quartz gouge layers were sheared under a range of effective normal...

Electron backscatter diffraction data and sample analysis from the Nusfjord Shear Zone, Lofoten, Norway (NERC Grant NE/P001548/1)

Field and microstructural analysis of pseudotachylytes formed at lower crustal depths and now lying exposed in the Flakstadøy Anorthosite, Lofoten, Norway. Electron backscatter diffraction (EBSD)...

Ultrasonic and mechanical data from laboratory shear failure experiments in fluid saturated Westerly granite (NERC Grant NE/S000852/1)

Data recorded during triaxial rock deformation experiments of Westerly granite in the presence of pressurised pore fluids (water). Data consists of mechanical data (load, displacement, confining...

Experimental friction dataset for heterogeneous and homogeneous mixed quartz-clay fault gouge layers (NERC Grant NE/P002943/1)

The data are from a suite of friction experiments performed on simulated fault gouges comprised of clay-quartz mixtures, sheared in a direct-shear arrangement. Some experiments were performed on...

Rheometry data on ash from Mount Meager, British Columbia, Canada (NERC Grant NE/W003767/1)

Rheometry data on ash from Mt Meager, British Columbia, Canada. All measurements that generated these data were performed using an Anton Paar MCR302 rotational rheometer with an Anton Paar powder...

Data of a controlled rupture experiment under triaxial conditions of Lanhelin granite, and acoustic data recorded for laboratory-scale seismic tomography. (NERC grant NE/M004716/1)

This data has been recorded during a triaxial rock deformation experiment where a Lanhelin granite samples was subjected to controlled shear failure. The data consists of mechanical data (load,...

Low-frequency, temperature-dependent seismic properties of antigorite (NERC grants NE/K009656/1, NE/M016471/1)

These data contain the shear modulus and attenuation of Vermont antigorite serpentinite in the seismic "low" frequency range, as functions of oscillation period (ranging from 1 to 1000s) and...

Transcripts on seasonal climate forecasts, indices and practices from farmers in Malawi, April-May 2019

The dataset provides transcripts from focus groups in Salima, Mangochi and Zomba (Malawi). The focus groups' discussions concern the monthly agricultural activities in association with the climate...

Seasonal agricultural calendars presenting activities per month for farmers in Malawi, April-May 2019

The dataset provides transcripts from focus groups in Salima, Mangochi and Zomba (Malawi). The focus groups' discussions focused on important monthly agricultural activities in association with the...