Data Publication

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

GFZ Data Services

(2021)

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

igneous rock

granitoid

monzodioritic rock

quartz monzodiorite

WEATHERING

CHEMICAL WEATHERING

IGNEOUS ROCKS

IGNEOUS ROCK PHYSICALOPTICAL PROPERTIES

drilling

arid land

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

http://dx.doi.org/10.5880/gfz.3.3.2021.002

Source publisher

GFZ Data Services

DOI

10.5880/gfz.3.3.2021.002

Authors

Krone, Laura V.

0000-0003-1694-6821

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

Hampl, Ferdinand J.

0000-0002-6983-0542

Department of Applied Geochemistry, Technische Universität Berlin, Germany;

Schwerdhelm, Christopher

0000-0002-3508-4123

Department of Geosciences, Eberhard Karls Universität Tübingen, Germany;

Bryce, Casey

0000-0002-1132-5201

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

Ganzert, Lars

0000-0001-9595-1041

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

Kitte, Axel

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

Übernickel, Kirstin

0000-0002-3585-7309

Department of Geosciences, Eberhard Karls Universität Tübingen, Germany;

Dielforder, Armin

0000-0001-9746-3869

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

Aldaz, Santiago

0000-0003-0642-8131

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

Oses-Pedraza, Rómulo

0000-0003-2310-3339

CRIDESAT, Universidad de Atacama, Copiapó, Chile;

Perez, Jeffrey Paulo H.

0000-0002-0256-0576

GFZ German Research Centre for Geosciences, Potsdam, Germany;

Sanchez-Alfaro, Pablo

0000-0001-7349-760X

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

Wagner, Dirk

0000-0001-5064-497X

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

Weckmann, Ute

0000-0002-4142-1018

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

von Blanckenburg, Friedhelm

0000-0002-2964-717X

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

Contributers

Krone, Laura V.

ContactPerson

0000-0003-1694-6821

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

von Blanckenburg, Friedhelm

ContactPerson

0000-0002-2964-717X

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

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

Oeser, R. A., Stroncik, N., Moskwa, L.-M., Bernhard, N., Schaller, M., Canessa, R., van den Brink, L., Köster, M., Brucker, E., Stock, S., Fuentes, J. P., Godoy, R., Matus, F. J., Oses Pedraza, R., Osses McIntyre, P., Paulino, L., Seguel, O., Bader, M. Y., Boy, J., … von Blanckenburg, F. (2018). Chemistry and microbiology of the Critical Zone along a steep climate and vegetation gradient in the Chilean Coastal Cordillera. CATENA, 170, 183–203. https://doi.org/10.1016/j.catena.2018.06.002

10.1016/j.catena.2018.06.002

Cites

Oeser, R. A., & von Blanckenburg, F. (2020). Do degree and rate of silicate weathering depend on plant productivity? Biogeosciences, 17(19), 4883–4917. https://doi.org/10.5194/bg-17-4883-2020

10.5194/bg-17-4883-2020

Cites

Werner, C., Schmid, M., Ehlers, T. A., Fuentes-Espoz, J. P., Steinkamp, J., Forrest, M., Liakka, J., Maldonado, A., & Hickler, T. (2018). Effect of changing vegetation and precipitation on denudation – Part 1: Predicted vegetation composition and cover over the last 21 thousand years along the Coastal Cordillera of Chile. Earth Surface Dynamics, 6(4), 829–858. https://doi.org/10.5194/esurf-6-829-2018

10.5194/esurf-6-829-2018

Cites

van Dongen, R., Scherler, D., Wittmann, H., & von Blanckenburg, F. (2019). Cosmogenic 10Be in river sediment: where grain size matters and why. Earth Surface Dynamics, 7(2), 393–410. https://doi.org/10.5194/esurf-7-393-2019

10.5194/esurf-7-393-2019

Cites

Dal Bo, I., Klotzsche, A., Schaller, M., Ehlers, T. A., Kaufmann, M. S., Fuentes Espoz, J. P., Vereecken, H., & van der Kruk, J. (2019). Geophysical imaging of regolith in landscapes along a climate and vegetation gradient in the Chilean coastal cordillera. CATENA, 180, 146–159. https://doi.org/10.1016/j.catena.2019.04.023

10.1016/j.catena.2019.04.023

Cites

Baumann, K., Jung, P., Samolov, E., Lehnert, L. W., Büdel, B., Karsten, U., Bendix, J., Achilles, S., Schermer, M., Matus, F., Oses, R., Osses, P., Morshedizad, M., Oehlschläger, C., Hu, Y., Klysubun, W., & Leinweber, P. (2018). Biological soil crusts along a climatic gradient in Chile: Richness and imprints of phototrophic microorganisms in phosphorus biogeochemical cycling. Soil Biology and Biochemistry, 127, 286–300. https://doi.org/10.1016/j.soilbio.2018.09.035

10.1016/j.soilbio.2018.09.035

Cites

Weckmann, U., Bauer, K., Krawczyk, C., Kück, J., Übernickel, K., & von Blanckenburg, F. (2020). <i>Geophysical Borehole logging at Santa Gracia, Chile</i> [Data set]. GFZ Data Services. https://doi.org/10.5880/GFZ.2.7.2020.001

10.5880/GFZ.2.7.2020.001

Cites

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). Deep weathering in the semi-arid Coastal Cordillera, Chile. Scientific Reports, 11(1). https://doi.org/10.1038/s41598-021-90267-7

10.1038/s41598-021-90267-7

IsSupplementTo

Contact

von Blanckenburg, Friedhelm

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

von Blanckenburg, Friedhelm

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

von Blanckenburg, Friedhelm

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

von Blanckenburg, Friedhelm

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

Citiation

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