Whole rock geochemical data from the Alpine Fault Zone. These data have been generated from systematic sampling through the Deep Fault Drilling Project - Phase 1 rock cores and from analyses of cuttings retrieved during the Deep Fault Drilling Project - Phase 2. Geochemical analyses on the fault rocks to understand the conditions at which they were deformed. The dataset is associated with the UK component of a major international campaign, the Deep Fault Drilling Project (DFDP). to drill a series of holes into the Alpine Fault, New Zealand. The overarching aim of the DFDP to understand better the processes that lead to major earthquakes by taking cores and observing a major continental fault during its build up to a large seismic event.

This vector dataset compiles the vertical and non-vertical faults for the Permian hot sedimentary aquifers in the Cheshire (Collyhurst Sandstone Formation, CS) and the Worcester (Bridgnorth Sandstone Formation, BS) basins.

Structural geology data obtained by Land Survey staff during their mapping work. Originally designed for the Mid-Wales Mapping Programme but subsequently used by other teams. Holds details of planar structures, linear structures, folds, faults and veins.

This vector dataset compiles the faults for the Upper Devonian in hot sedimentary aquifers in the Midland Valley of Scotland, UK used by Kearsey, T.I., Receveur, M. and Monaghan, A.A., 2024. Modelled hot sedimentary aquifer geothermal potential of Upper Devonian strata in the Midland Valley of Scotland.

Fault and Horizon interpretations are provided for the Offshore Corinth Rift. The majority of the interpretations were based on 2D profiles from seismic reflection surveys collected by the R/V Maurice-Ewing in 2003, M.V. Vassilios in 1996 and 2003, and the R/V AEGEAO. Interpreted faults include major rift border faults as well as minor syn-rift faulting. Interpreted horizons include basement, a basin wide unconformity and five inferred transgressive surfaces based on variations in seismic character. Details of the fault and stratigraphic framework can be found in Nixon et al. (2016). Rapid spatiotemporal variations in rift structure during development of the Corinth Rift, central Greece. Tectonics, 35, 1225-1248.’ Published paper, Nixon, C. W., et al. (2016), Rapid spatiotemporal variations in rift structure during development of the Corinth Rift, central Greece, Tectonics, 35, 1225–1248, doi:10.1002/2015TC004026

This vector dataset compiles the vertical and non-vertical faults for the top and base of the Sherwood Sandstone Group in the Permo-Triassic Worcester, Wessex, East Yorkshire Lincolnshire and Cheshire basins.

There are two components to this dataset: (1) fault analyses used to estimate underlying dyke properties, imaged in 3D seismic reflection data; and (2) dimension measurements and calculations of pit craters associated with the dykes and faults. This dataset specifically supplements https://webapps.bgs.ac.uk/services/ngdc/accessions/index.html#item170389. The seismic reflection data are located offshore NW Australia and image a series of Late Jurassic dykes and overlying dyke-induced normal faults; these structures occur within a sedimentary basin and are now buried beneath several kilometres of rock. The specific seismic reflection dataset used for this study so far is the Chandon 3D survey, which is available through https://www.ga.gov.au/nopims and is also deposited within the NGDC. Dyke-induced faults: Analyses of these faults uses an array of point pairs, defined by X, Y, and Z co-ordinates, that mark where certain sedimentary beds are intersected by the fault in its footwall and hanging wall. Mapping of these points for 11-14 sedimentary horizons was conducted using Petrel seismic interpretation software. From the footwall and hanging wall point pairs, the throw, heave, displacement, and dip of each fault was calculated. By measuring distances between corresponding point pairs on opposing faults, graben width properties and estimated down-dip fault continuations were calculated. The expression of dyke-induced faults observed at the surface in active volcanic areas is often used to estimate dyke location, thickness (expected to roughly equal the heave on overlying faults), and upper tip depth (expected to occur where overlying, oppositely dipping faults meet; i.e. the point of the ‘V’). This study represents the first time natural dyke-induced faults and underlying dykes have been imaged in 3D and quantitatively studied. The dataset presented here allows hypotheses concerning relationships between dyke-induced fault geometries and dyke properties to finally be tested, and provides insight into normal fault kinematics; this will be useful to structural geologists and volcanologists. Pit craters: These features are enigmatic, quasi-circular depressions that commonly occur at the surface above inferred dykes and faults. The long axis and short axis lengths, as well as the area and depression depth, of the pit crater plan-view morphologies were measured. 3D seismic reflection data reveal the pit craters are underlain by pipes, for which the height, diameter, and volumes are calculated. These pipes often connect to dykes and faults, providing the first conclusive evidence that dyking and faulting mechanisms can drive pit crater formation. However, although studies of pit craters on other planets has used their surface shape to predict subsurface processes and geology, the data presented here suggest pit crater surface expressions are not diagnostic of formation mechanisms or geology.

This vector dataset represents the vertical and non-vertical faults for the Fell Sandstone Formation (base Middle Border Group) in the Northumberland-Solway Basin (Carboniferous hot sedimentary aquifer resources).

This vector dataset represents the Variscan faults for the early Carboniferous limestone (ECL) in hot sedimentary aquifers in the UK, used by D J.R. Jones, T. Randles, T. Kearsey, T.C. Pharaoh, A. Newell (2023). https://doi.org/10.1016/j.geothermics.2023.102649.

The data comprises information on the subsurface structure of stratigraphic levels and units in the United Kingdom, detailing depth to and thickness of the units. These result from projects in different parts of the UK performed at different times. Common working scales are 1:50 000 and 1:250 000 with appropriate differences in detail. Much mapping results from interpretation of seismic data, and as a result many of the structural maps are in time rather than depth, although some have been depth converted.