Anisotropy of magnetic susceptibility data of Permo-Triassic red beds from the Cadi basin (Southern Pyrenees)

GENERAL INFORMATION 1. Title of Dataset: AMS of Permo-Triassic red beds of the Cadi basin (Southern Pyrenees) 2. Authors: Ana Simón‑Muzás, Ruth Soto, Emilio L. Pueyo, Elisabet Beamud, Belén Oliva‑Urcia, Antonio M. Casas‑Sainz 3. Date of data collection: December, 2023 4. Date of data publication on repository: November, 2025 5. Geographic location of data collection <latitude, longitude, or city/region, Country, continent as appropriate>: 42.304107,1.567665,EPSG:4258,381942.75,4684535.15,EPSG:25831 (Lat,Long,EPSG,X,Y,EPSG), Catalan Pyrenees, Spain, Europe 6. Information about funding sources that supported the collection of the data (including research project reference/acronym): Funding from this work comes from projects grants PID2020-114273 GB-C22, PID2019-108753 GB-C22 and FPU19/02353 funded by MCIN/ AEI/10.13039/501100011033, “ERDF A way of making Europe” and “ESF Investing in your future”. 7. Recommended citation for this dataset: SHARING/ACCESS/CONTEXT INFORMATION 1. Usage Licenses/restrictions placed on the data (please indicate if different data files have different usage license): 2. Links to publications/other research outputs that cite the data: 3. Links to publications/other research outputs that use the data: https://doi.org/10.1007/s41513-024-00251-z 4. Links to other publicly accessible locations of the data: 5. Links/relationships to ancillary data sets: 6. Was data derived from another source? If so, please add link where such work is located: https://doi.org/10.1007/s41513-024-00251-z DATA & FILE OVERVIEW 1. File List: 25 sites 2. Relationship between files, if important: Each file is a magnetic fabric site 3. Additional related data collected that was not included in the current data package: 4. Are there multiple versions of the dataset? If so, please indicate where they are located: METHODOLOGICAL INFORMATION 1. Description of methods used for collection/generation of data: A total of 25 sites were sampled for the AMS study in red bed outcrops of the Permian and the Triassic.The sampling lithologies were claystones (six sites), siltstones (seven sites) and medium/coarse-grained sandstones (12 sites). Conglomerates and coarse-grainedsandstones were excluded from sampling. Samples were obtained in the field with an electrical drill in siltstones and with a gas-powered drill in sandstones, bothwater-cooled, to obtain oriented cores. Oriented blocks were taken (two or three oriented blocks per site) in six sampling sites. In the claystone sites (six sites), oriented fragments of small size and irregular shapes were extracted manually due to their brittle nature. All simples were oriented with a magnetic compass and samplingsites were positioned with a GPS. Oriented samples were cut using a radial saw (non-magnetic steel) in the laboratory: cores to 2.1 cm height and 2.5 cm-diameter standard cylinders and blocks to 2.1 cm-edge cubes. Ten standard cylinders were obtained, on average, in each drilled sampling site,and nine to 24 standard cubes were obtained from oriented blocks. The oriented small irregular fragments from claystonesites were placed inside a methacrylate cube with 2 cm edge with its oriented face parallel to one side of the cube.Anisotropy of magnetic susceptibility (AMS) measurements at room temperature (RT-AMS) were conducted at the Magnetic Fabrics Laboratory of the University of Zaragoza, Spain, using a Kappabridge KLY-3S (AGICO Inc.). 2. Methods for processing the data: The susceptibility tensor was calculated, including statistical confidence angles (e12, e13, e21, etc…), with the software SUSAR (AGICO Inc.). The AMS values for all specimens from each site were processed and represented using the software Anisoft 5.1.03. 3. Instrument- or software-specific information needed to interpret/reproduce the data, please indicate their location: Kappabridge KLY-3S, software: SUSAR, Anisoft 5.1.03 4. Standards and calibration information, if appropriate: Standard specimens dimensions: 2.1 cm-long, 2.5 cm-diameter for the standard cylinder specimens and 2 cm edgefor standard cube specimens. 5. Environmental/experimental conditions: AMS measurements at room temperature. 6. Describe any quality-assurance procedures performed on the data: 7. People involved with sample collection, processing, analysis and/or submission, please specify using CREDIT roles https://credit.niso.org/: Ana Simón‑Muzás, Ruth Soto, Emilio L. Pueyo, Elisabet Beamud, Belén Oliva‑Urcia, Antonio M. Casas‑Sainz 8. Author contact information: DATA-SPECIFIC INFORMATION: 1. Number of variables: 23 2. Number of cases/rows: 3. Variable List: Azi (Azimut), Dip, O.P. (Orientation Parameters), Demag. fac. (Demagnetization factor), Mean susc. (Mean susceptibility value), Norming factor, Standard err. (%), F, F12 and F23 (Test for anisotropy), E12, E23 and E13 (95% confidence angles), L, F, P, P', T, U, Q, E (Anisotropy factors), Principal direction: D (declination), I (inclination), Normed tensor 4. Missing data codes: 5. Specialized formats or other abbreviations used: 6. Dictionaries/codebooks used: 7. Controlled vocabularies/ontologies used: