X-ray µ-CT data reconstruction, image stacks of selected samples from IODP Sites 385-U1547 (Holes B, C, and E) and 385-U1548 (Holes A and C) [datasets]

DOI

This contribution comprises true-3D volume datasets (Digital drill cores), acquired by a X-ray Computed Microtomography (µ-CT) survey on selected drill core material recovered from Site U1547 (Holes B, C, and E) and Site U1548 (Holes A and C), drilled by IODP Expedition 385 in the Guaymas Basin, Gulf of California (Teske et al., 2021). The fourteen samples reported by Cheviet et al. (in rev.) are peperitic material formed by magma-sediment interactions, interpreted to have occurred during the emplacement of a funnel-shaped igneous sill intrusion at the subseafloor (Galerne et al., 2025). The scanned samples are irregularly shaped pieces featuring a wide range of textures including large vesicles and fractures with injected sediments and secondary mineral precipitation. These analyses complement a set of X-ray μ-CT scans from the same magmatic body (Kahl and Galerne, 2025). The X-ray μ-CT scans were performed using the CT-ALPHA system of the MAPEX Center for Materials and Processes at the University of Bremen, Germany. This µ-CT survey has been conducted as part of IODP Expedition 385 Post-cruise research, the funding for these analyses are provided by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) funding priority program SPP 527 through fund granted to Christophe Galerne (Project number 447431016 #GA 1939/6-1, and #GA 1939/6-2).The µ-CT-derived image volumes comprise the true 3-D spatial arrangement of fabric compounds in the rock. In the reconstructed 16-bit greyscale volume data, areas of highly attenuating phases (e.g. sulfides, calcite and porosity) are encoded in light grey value. Base on their density sulphides (yellow) and porosity (red) were isolate in different scan to study the distribution of sulphides and porosity at magma-sediment contact. As an added value to the non-destructive visualization procedure, the reconstructed X-ray micro-CT scans of the studied drill core material provide volume reconstructions which can serve as digitypes that may be studied as digital facsimile without the necessity of consulting / modifying / destructive interactions of the actual type specimens (e. g. for investigations regarding the fabric relations). These image data can be used for quantitative 3D image analysis, e. g. to derive empirical relations between porosity, the extent of replacement of primary phases, and the distribution of secondary phases (and many more).

Identifier
DOI https://doi.pangaea.de/10.1594/PANGAEA.986652
Related Identifier References https://doi.org/10.1594/PANGAEA.974133
Related Identifier References https://doi.org/10.1029/2024JB030354
Related Identifier References https://doi.org/10.14379/iodp.proc.385.104.2021
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.986652
Provenance
Creator Kahl, Wolf-Achim ORCID logo; Cheviet, Alban (ORCID: 0000-0001-9960-029X); Galerne, Christophe (ORCID: 0000-0001-9696-205X)
Publisher PANGAEA
Publication Year 2025
Funding Reference Deutsche Forschungsgemeinschaft, Bonn https://doi.org/10.13039/501100001659 Crossref Funder ID 5459347 https://gepris.dfg.de/gepris/projekt/5459347?context=projekt&task=showDetail&id=5459347 SPP 527: Bereich Infrastruktur - "International Ocean Discovery Program" (IODP); German Research Foundation https://doi.org/10.13039/501100001659 Crossref Funder ID 447431016 #GA 1939/6-1 ; German Research Foundation https://doi.org/10.13039/501100001659 Crossref Funder ID 447431016 #GA 1939/6-2
Rights Creative Commons Attribution 4.0 International; Data access is restricted (moratorium, sensitive data, license constraints); https://creativecommons.org/licenses/by/4.0/
OpenAccess false
Representation
Resource Type Dataset
Format text/tab-separated-values
Size 112 data points
Discipline Earth System Research
Spatial Coverage (-111.681W, 27.504S, -111.679E, 27.507N); Guaymas Basin
Temporal Coverage Begin 2019-10-16T21:25:00Z
Temporal Coverage End 2019-11-08T00:10:00Z