Data Publication

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

GFZ Data Services

(2021)

Descriptions

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).

Keywords

Originally assigned keywords

critical zone

rock fracturing

rock weathering

compound material > igneous material > igneous rock

compound material > igneous material > igneous rock > phaneritic igneous rock > granitoid

compound material > igneous material > intermediate composition igneous material > intermediate composition igneous rock > dioritoid > monzodioritic rock

compound material > igneous material > intermediate composition igneous material > intermediate composition igneous rock > dioritoid > monzodioritic rock > quartz monzodiorite

EARTH SCIENCE > LAND SURFACE > EROSION/SEDIMENTATION > WEATHERING

EARTH SCIENCE > SOLID EARTH > GEOCHEMISTRY > GEOCHEMICAL PROCESSES > CHEMICAL WEATHERING

EARTH SCIENCE > SOLID EARTH > ROCKS/MINERALS/CRYSTALS > IGNEOUS ROCKS

EARTH SCIENCE > SOLID EARTH > ROCKS/MINERALS/CRYSTALS > IGNEOUS ROCKS > IGNEOUS ROCK PHYSICAL/OPTICAL PROPERTIES

industrial process > drilling

land > natural area > terrestrial area > arid land

lithosphere > earth's crust > fault

MSL enriched keywords

Equipment

borehole drilling

drill core

Measured property

strain

porosity

Measured property

strain

porosity

analysis

mineralogical analysis

measured property

beryllium

MSL enriched sub domains i

geo-energy test beds

rock and melt physics

analogue modelling of geologic processes

geochemistry

Source

https://dataservices.gfz-potsdam.de/panmetaworks/showshort.php?id=9607f721-776f-11eb-9603-497c92695674

Source publisher

GFZ Data Services

DOI

10.5880/gfz.3.3.2021.002

Creators

Krone, Laura V.

GFZ German Research Centre for Geosciences, Earth Surface Geochemistry, Potsdam, Germany

ORCID:

https://orcid.org/0000-0003-1694-6821

Hampl, Ferdinand J.

Department of Applied Geochemistry, Technische Universität Berlin, Germany

ORCID:

https://orcid.org/0000-0002-6983-0542

Schwerdhelm, Christopher

Department of Geosciences, Eberhard Karls Universität Tübingen, Germany

ORCID:

https://orcid.org/0000-0002-3508-4123

Bryce, Casey

Department of Geosciences, Eberhard Karls Universität Tübingen, Germany; now at: Department of Earth Sciences, University of Bristol, UK

ORCID:

https://orcid.org/0000-0002-1132-5201

Ganzert, Lars

GFZ German Research Centre for Geosciences, Geomicrobiology, Potsdam, Germany

ORCID:

https://orcid.org/0000-0001-9595-1041

Kitte, Axel

GFZ German Research Centre for Geosciences, Geomicrobiology, Potsdam, Germany

Übernickel, Kirstin

Department of Geosciences, Eberhard Karls Universität Tübingen, Germany

ORCID:

https://orcid.org/0000-0002-3585-7309

Dielforder, Armin

GFZ German Research Centre for Geosciences, Lithosphere Dynamics, Potsdam, Germany | Leibniz Universität, Institute of Geology, Hannover Germany

ORCID:

https://orcid.org/0000-0001-9746-3869

Aldaz, Santiago

GFZ German Research Centre for Geosciences, Geomechanics and Scientific Drilling, Potsdam, Germany

ORCID:

https://orcid.org/0000-0003-0642-8131

Oses-Pedraza, Rómulo

CRIDESAT, Universidad de Atacama, Copiapó, Chile

ORCID:

https://orcid.org/0000-0003-2310-3339

Perez, Jeffrey Paulo H.

GFZ German Research Centre for Geosciences, Potsdam, Germany

ORCID:

https://orcid.org/0000-0002-0256-0576

Sanchez-Alfaro, Pablo

Instituto de Ciencias de la Tierra, Universidad Austral de Chile, Valdivia, Chile

ORCID:

https://orcid.org/0000-0001-7349-760X

Wagner, Dirk

GFZ German Research Centre for Geosciences, Potsdam, Germany | Universität Potsdam, Institute of Geosciences, Potsdam, Germany

ORCID:

https://orcid.org/0000-0001-5064-497X

Weckmann, Ute

GFZ German Research Centre for Geosciences, Geophysical Imaging, Potsdam, Germany

ORCID:

https://orcid.org/0000-0002-4142-1018

von Blanckenburg, Friedhelm

GFZ German Research Centre for Geosciences, Earth Surface Geochemistry, Potsdam, Germany | Freie Universität Berlin, Institute of Geological Sciences, Berlin, Germany

ORCID:

https://orcid.org/0000-0002-2964-717X

Contributors

Krone, Laura V.

ContactPerson

GFZ German Research Centre for Geosciences, Earth Surface Geochemistry, Potsdam, Germany

ORCID:

https://orcid.org/0000-0003-1694-6821

von Blanckenburg, Friedhelm

ContactPerson

GFZ German Research Centre for Geosciences, Earth Surface Geochemistry, Potsdam, Germany | Freie Universität Berlin, Institute of Geological Sciences, Berlin, Germany

ORCID:

https://orcid.org/0000-0002-2964-717X

Krone, Laura V.

ContactPerson

GFZ German Research Centre for Geosciences, Earth Surface Geochemistry, Potsdam, Germany

Von Blanckenburg, Friedhelm

ContactPerson

GFZ German Research Centre for Geosciences, Earth Surface Geochemistry, Potsdam, Germany; Freie Universität Berlin, Institute of Geological Sciences, Berlin, Germany

References

10.1016/j.catena.2018.06.002

10.5194/bg-17-4883-2020

10.5194/esurf-6-829-2018

10.5194/esurf-7-393-2019

10.1016/j.catena.2019.04.023

10.1016/j.soilbio.2018.09.035

10.5880/gfz.2.7.2020.001

10.1038/s41598-021-90267-7

Citation

Krone, L. V., Hampl, F. J., Schwerdhelm, C., Bryce, C., Ganzert, L., Kitte, A., Übernickel, K., Dielforder, A., Aldaz, S., Oses-Pedraza, R., Perez, J. P. H., Sanchez-Alfaro, P., Wagner, D., Weckmann, U., & von Blanckenburg, F. (2021). Physical and geochemical data on a drill core from the semi-arid Coastal Cordillera, Chile [Data set]. GFZ Data Services. https://doi.org/10.5880/GFZ.3.3.2021.002