Physical and geochemical data on a drill core from the semi-arid Coastal Cordillera, Chile

DOI

This dataset contains petrophysical, geochemical, and mineralogical data from a drilling core from the Coastal Cordillera, Chile. The drilling campaign in the semi-arid field site Reserve Santa Gracia was conducted in the framework of the “EarthShape” project (DFG SPP1803) to study deep weathering along a climate gradient. Previous studies in this area found that the weathering front is located much deeper than expected (Oeser et al., 2018). To explore the weathering profile and the depth of the weathering front, we performed various geochemical, petrophysical, and mineralogical analyses. The drilling campaign was conducted in March and April 2019, using the wireline drilling method with a standard industry truck-mounted PQ3-sized (85 mm core diameter, 123 mm hole diameter) rotary drilling rig (Sondajes Araos E.I.R.L.). A detailed description of the drilling activities is given in Krone et al. (2021). The retrieved core runs with a maximum length of 1.5 m were drilled using potable water, with added contamination control tracer for further microbiological analyses of the rock. As basis for our detailed study of deep weathering we determined the porosity, density, specific surface area, elemental composition, mineralogical composition, Fe oxidation, and the degree of weathering from chemical depletion, volumetric strain, and the weathering rate using the in situ cosmogenic nuclide beryllium-10 (10Be).

Identifier
DOI https://doi.org/10.5880/GFZ.3.3.2021.002
Related Identifier Cites https://doi.org/10.1016/j.catena.2018.06.002
Related Identifier Cites https://doi.org/10.5194/bg-17-4883-2020
Related Identifier Cites https://doi.org/10.5194/esurf-6-829-2018
Related Identifier Cites https://doi.org/10.5194/esurf-7-393-2019
Related Identifier Cites https://doi.org/10.1016/j.catena.2019.04.023
Related Identifier Cites https://doi.org/10.1016/j.soilbio.2018.09.035
Related Identifier Cites https://doi.org/10.5880/GFZ.2.7.2020.001
Related Identifier IsSupplementTo https://doi.org/10.1038/s41598-021-90267-7
Metadata Access http://doidb.wdc-terra.org/oaip/oai?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:doidb.wdc-terra.org:7093
Provenance
Creator Krone, Laura V. ORCID logo; Hampl, Ferdinand J. ORCID logo; Schwerdhelm, Christopher ORCID logo; Bryce, Casey ORCID logo; Ganzert, Lars ORCID logo; Kitte, Axel; Übernickel, Kirstin ORCID logo; Dielforder, Armin ORCID logo; Aldaz, Santiago ORCID logo; Oses-Pedraza, Rómulo ORCID logo; Perez, Jeffrey Paulo H. ORCID logo; Sanchez-Alfaro, Pablo (ORCID: 0000-0001-7349-760X); Wagner, Dirk (ORCID: 0000-0001-5064-497X); Weckmann, Ute ORCID logo; von Blanckenburg, Friedhelm (ORCID: 0000-0002-2964-717X)
Publisher GFZ Data Services
Contributor Krone, Laura V.; von Blanckenburg, Friedhelm
Publication Year 2021
Funding Reference Deutsche Forschungsgemeinschaft http://doi.org/10.13039/501100001659 Crossref Funder ID BL 562/16-2 ; Deutsche Forschungsgemeinschaft http://doi.org/10.13039/501100001659 Crossref Funder ID BL 562/20-1 ; Deutsche Forschungsgemeinschaft http://doi.org/10.13039/501100001659 Crossref Funder ID WE 2938/13-1 ; Deutsche Forschungsgemeinschaft http://doi.org/10.13039/501100001659 Crossref Funder ID NE 687/9-1 ; Deutsche Forschungsgemeinschaft http://doi.org/10.13039/501100001659 Crossref Funder ID WA 1554/22-1 ; Deutsche Forschungsgemeinschaft http://doi.org/10.13039/501100001659 Crossref Funder ID BR 5927/2-1
Rights CC BY 4.0; http://creativecommons.org/licenses/by/4.0/
OpenAccess true
Contact Krone, Laura V. (GFZ German Research Centre for Geosciences, Earth Surface Geochemistry, Potsdam, Germany); von Blanckenburg, Friedhelm (GFZ German Research Centre for Geosciences, Earth Surface Geochemistry, Potsdam, Germany); von Blanckenburg, Friedhelm (GFZ German Research Centre for Geosciences, Earth Surface Geochemistry, Potsdam, Germany; Freie Universität Berlin, Institute of Geological Sciences, Berlin, Germany)
Representation
Resource Type Dataset
Discipline Geosciences
Spatial Coverage (-71.160W, -29.760S, -71.160E, -29.759N)