Anisotropy of magnetic susceptibility data of Late Carboniferous-Permian volcanic rocks from the Lletó area (Cadi basin, Southern Pyrenees)

GENERAL INFORMATION 1. Title of Dataset: AMS data of Late Carboniferous-Permian volcanic rocks from the Lletó area (Cadi basin, Southern Pyrenees) 2. Authors: Ana Simón‑Muzás, Antonio M. Casas‑Sainz, Ruth Soto, Belén Oliva‑Urcia 3. Date of data collection: July 2021 4. Date of data publication on repository: November 2025 5. Geographic location of data collection <latitude, longitude, or city/region, Country, continent as appropriate>: 42.309787,1.539836,EPSG:4258,379659.75,4685204.73,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): This study has been supported by Project grants PID2020-114273GB-C22, PID2019-108753GBC22, PID2023-148256NB-I00 and FPU19/02353 funded by MCIN/AEI/10.13039/501100011033 “ERDF Away 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/s00531-025-02530-1 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/s00531-025-02530-1 DATA & FILE OVERVIEW 1. File List: 31 files 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: The samples were directly obtained in the field as cylindrical cores with gasoline and battery-powered drill machines cooled with water or as oriented blocks taken with extraction tools. In the block sites, one to four blocks per site were taken and in the drilled sites an average value of eight cores per site was obtained. All simples were oriented with a magnetic or a solar compass, and sampling localities were positioned with a GPS. Oriented cores and blocks were cut to 2.1 cm-long, 2.5 cm-diameter standard cylinder specimens and 2 cm Edge standard cube specimens, respectively, using a radial saw and a diamond drill bit (non-magnetic steel). 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: 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, Antonio M. Casas‑Sainz, Ruth Soto, Belén Oliva‑Urcia 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: