Measurements of nitrogen and carbon abundances and isotopic ratios for deep-marine ferromanganese crusts and nodules from the modern ocean. This reservoir has not previously investigated as an archive of nitrogen isotopes. The results reveal unusually negative values, interpreted as evidence of partial ammonium oxidation succeeded by adsorption of nitrogen oxides to the mineral surface. More details can be found in Stüeken , E E & Bau , M 2023 , Geochemical Perspectives Letters , vol. 25 , pp. 13-17 . https://doi.org/10.7185/geochemlet.2308 Geographical extent: Central Pacific seafloor, between Kiribati and Wallis and Futuna (0° – 10° S and 175° E – 175° W)

Radiocarbon measurements on planktic and benthic foraminifera from sediment cores in the North Atlantic: Ocean Drilling Program (ODP) 983, SU90-44, MD04-2829, MD01-2461, and EW9302-2JPC Site 983 is located on the Bjorn Drift in approximately 1650 m water depth on the eastern flank of the Reykjanes Ridge. Hole 983A Position: 60°24.200'N, 23°38.437'W. Sediment core SU90-44 collected from the north-eastern Atlantic basin, near the top of a small abyssal hill, southeast of the Rockall plateau, 50°01'N, 17°06'W, 4279 m. Sediment core MD04-2829 collected from Rosemary Bank in the Northern Rockall Trough 58º 56.93’ N; 09º 34.30’ W; 1743 m water depth. Sediment core MD01-2461 was collected from the north-western flank of the Porcupine Seabight approximately 550 km to the southwest, 51°45’N, 12°55’W; 1153 m water depth, recovered in 2001. Core EW9302-2JPC recovered from the Rockall Plateau and East Flank of Reykjanes Ridge from the Flemish Cap in the south- eastern Labrador Sea, 48°47.70′N, 45°05.09′W, taken at water depth 1251m.

Geochemical and petrophysical data acquired on intact and damage zone rock samples for two localities along the San Andreas Fault, Mojave section. Data used in the publication entitled "Chemically altered Pulverized granite along the Mojave section of the SAF shows evidence for large-scale heat transfer by post-seismic fluid flow and fluid overpressure at depth" by F.M Aben et al., in revision at the journal Geochemistry, Geophysics, Geosystems. Rock samples (33 samples at Lake Hughes locality, 27 at Littlerock locality) were analysed for porosity, grain- and bulk density, and chemical composition (XRF analysis). Mineral content was established from point counting on thin sections for 9 samples (Littlerock locality) and 13 samples (Lake Hughes locality). The results of these analyses are presented in this dataset. In addition, the samples were grouped in three categories: intact, damaged, and pulverized. Statistical analysis was performed on the grouped data to identify statistically significant changes between the groups. The statistical analysis results are presented here as well.

Compositional data of clinopyroxene crystals standards analysed by electron probe microanalyses for major element oxides and by Mossbauer spectroscopy for iron valence and unknown clinopyroxene crystals from Iceland and the Azores . These data were collected in support of research described in the following preprints: https://doi.org/10.31223/X5CT03 and https://doi.org/10.31223/X5N959

This dataset gathers the data collected during a brine:CO2 flow-through experiments conducted on three sandstones with similar mineralogical compositions (major minerals) but different porosity, clay-size fraction and clay mineralogy. The aim was to study the effect of such heterogeneities on interpretation of geophysical data. Geophysical and transport data were collected before, during and after exposing each sample to CO2, and analysed with basic petrophysical properties. The tests were conducted in the high-pressure, room-temperature (20°C) experimental setup for multi-flow-through tests in the Rock Physics Laboratory at the National Oceanography Centre, Southampton (NOCS), during 2022, as part of the OASIS, EHMPRES and FOCUS projects with funding from the Research Council of Norway (RCN grant no. 280472 - OASIS) and the Natural Environment Research Council (NERC grants NE/X003248/1 - FAPESP-EHMPRES, and NE/X006271/1 - FOCUS). To simulate the specific effective stress conditions of the target CO2 storage reservoir in Aurora (Aker et al., 2021), northern North Sea, the confining and pore pressure conditions of the reservoir were accommodated to our lab temperature conditions. We measured ultrasonic P- and S-wave velocities and attenuations, axial strains and electrical resistivity for an increasing CO2 saturation. The degree of brine saturation was inferred from the electrical resistivity using the modified Archie’s empirical relationship to account for the contribution of clay minerals, based on the Waxman–Smits–Juhasz model (see further details in, e.g., Falcon-Suarez et al. (2021)). We refer to Falcon-Suarez et al. (2020) for further information about the experimental rig and the CO2 injection protocol.

Measurements of the nitrogen content of hydrothermal graphite deposits and associated silicate rocks. The samples are of Paleoproterozoic age and allow constraining the behavior of nitrogen in abiotic hydrothermal graphite-forming systems. The results provide context for evaluating the biogenicity of Eoarchean graphite. More details are presented in Stüeken, E.E., Szilas, K. and van Hinsberg, V.J., 2023, Chemical Geology, 617, p.121274.

Results files from computer simulations of fluid flow for 3D models of Ediacaran organisms and communities, generated using computational fluid dynamics. Simulations performed using the simulation software package COMSOL Multiphysics. Root folder names refer to initial trials ‘Cylinder Tests’), modern organisms (‘Chondrocladia lyra’), Ediacaran organisms (‘Pectinifrons’ and ‘Pterdinium’), and Ediacaran surfaces (‘Avalon’ and ‘White Sea’ surfaces). Sub-folder and file names refer to simulations performed with different models (e.g., ‘Base’, ‘Filled’ and ‘Flush’ Petridinium models), model orientations (e.g., 0°, 90°, and 180° to the inlet), current velocities (e.g., 0.15, 0.5 and 0.85 m/s), and turbulence models (e.g., Spalart Allmaras, shear stress transport, and large eddy simulation). Further details for Pectinifrons and Pteridinium available in Darroch et al. 2022 (https://doi.org/10.1017/pab.2022.2) and Darroch et al. 2023 (https://doi.org/10.1016/j.isci.2023.105989), respectively. Files can be opened with COMSOL Multiphysics (www.comsol.com) versions 5.6 or 6.0 and above.

This dataset contains LiDAR scans as Faro Scene files of 53 scans which cover 15 different fossiliferous surfaces. The number of scans per surface varies depending on the topology of the bedding plane. These LiDAR scans were made in Newfoundland, Canada, from Mistaken Point Ecological Reserve (10 surfaces), Discovery Geopark (4 surfaces) and Ferryland (1 surface). 45 scans were made in July 2022 and 8 in September 2022. The scans were made in order to enable the mapping of fossil specimens within their communities so that spatial analyses can be used to infer the underlying biological and ecological processes than govern Ediacaran eco-evolutionary dynamics. The dataset is complete to reconstruct the bedding surfaces accurately.

Results of shore-based micropaleontological analysis, summarizing planktonic foraminifera biostratigraphy at Site U1559A. IODP Hole U1559A located in the central South Atlantic (30°15.6335′S, 15°2.0942′W). Collected data allowed to identify slumped interval of older material present within much younger upper part of the local sedimentary sequence.

Major and trace element data of lava and tephra samples from the 2021 Tajogaite eruption. Major and select trace element collected by XRF, trace elements collected by ICPMS, both at the University of Granada. Data collected as part of NERC Urgency Grant led by K Chamberlain (Liverpool), in collaboration with M Pankhurst (INVOLCAN), J Scarrow (Granada), D Morgan (Leeds), J Hickey (Exeter), D Neave (Manchester), for understanding how eruptions begin, evolve and end. Samples analysed span the entire September - December 2021 eruptive sequence of Tajogaite, and data were collected between December 2021 and August 2022.