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Data Publication

Mineralogical and geochemical data of two weathering profiles in a Mediterranean and a humid climate region of the Chilean Coastal Cordillera

Hampl, Ferdinand J. | Schiperski, Ferry | Schwerdhelm, Christopher | Stroncik, Nicole | Bryce, Casey | von Blanckenburg, Friedhelm | Neumann, Thomas

GFZ Data Services

(2022)

This publication provides mineralogical and geochemical data of two 6-m-deep weathering profiles formed from granitic rock. They are located in different climate zones (Mediterranean and humid) and are close to the national parks of La Campana and Nahuelbuta in the Chilean Coastal Cordillera. Additional rock samples from adjacent boreholes were used to relate the regolith to the bedrock. The profiles were sampled in February and March 2020 as part of the German Science Foundation (DFG) priority research program SPP-1803 “EarthShape: Earth Surface Shaping by Biota”. The goal of this project is to obtain a holistic view on the interplay of the geosphere and the biosphere under different climatic conditions and to investigate weathering mechanisms. The aim of this publication is to provide the data basis for understanding the weathering processes that control the development of the profiles in relation to different climatic conditions. To this end, we measured the geochemistry with X-ray fluorescence, extracted Fe, Al and Si with oxalate/dithionite, determined the grain sizes by wet sieving and pipetting, measured the magnetic susceptibility, and analysed the mineral content of bulk samples and clay fractions with X-ray diffraction. The data are compiled in one Excel file and all results of the X-ray diffraction measurements are available as RAW- and TXT files.

Keywords


Originally assigned keywords
Coastal Cordillera
secondary minerals
Critical Zone
EarthShape
weathering
La Campana
Nahuelbuta
CHEMICAL WEATHERING
MINERAL DISSOLUTION
IGNEOUS ROCKS
MINERALS

Corresponding MSL vocabulary keywords
minerals

MSL enriched keywords
minerals
igneous rock - intrusive
acidic intrusive
granite
silicate minerals
phyllosilicates
clay
unconsolidated sediment
clastic sediment
clay
Measured property
magnetic susceptibility
equipment
x-ray spectrometer
x-ray fluorescence spectrometer
measured property
iron
Technique
imaging (3D)
computed tomography (CT)
X-ray diffraction

MSL enriched sub domains i

paleomagnetism
geochemistry
microscopy and tomography


Source publisher

GFZ Data Services


DOI

10.5880/fidgeo.2022.035


Authors

Hampl, Ferdinand J.

0000-0002-6983-0542

Department of Applied Geochemistry, Technische Universität Berlin, Berlin, Germany;

Schiperski, Ferry

Department of Applied Geochemistry, Technische Universität Berlin, Berlin, Germany;

Schwerdhelm, Christopher

0000-0002-3508-4123

Geomicrobiology Group, Eberhard-Karls-University Tübingen, Tübingen, Germany;

Stroncik, Nicole

0000-0003-4647-5928

GFZ German Research Centre for Geosiences, Potsdam, Germany;

Bryce, Casey

0000-0002-1132-5201

School of Earth Sciences, University of Bristol, Bristol, United Kingdom;

von Blanckenburg, Friedhelm

0000-0002-2964-717X

GFZ German Research Centre for Geosiences, Potsdam, Germany; Institute of Geological Sciences, Freie Universität Berlin, Berlin, Germany;

Neumann, Thomas

Department of Applied Geochemistry, Technische Universität Berlin, Berlin, Germany;


Contributers

Hampl, Ferdinand J.

ContactPerson

ferdinand.j.hampl@tu-berlin.de;


References

Hampl, F. J., Schiperski, F., Schwerdhelm, C., Stroncik, N., Bryce, C., von Blanckenburg, F., & Neumann, T. (2023). Feedbacks between the formation of secondary minerals and the infiltration of fluids into the regolith of granitic rocks in different climatic zones (Chilean Coastal Cordillera). Earth Surface Dynamics, 11(3), 511–528. https://doi.org/10.5194/esurf-11-511-2023

10.5194/esurf-11-511-2023

IsSupplementTo

Anderson, S. P., Dietrich, W. E., & Brimhall, G. H. (2002). Weathering profiles, mass-balance analysis, and rates of solute loss: Linkages between weathering and erosion in a small, steep catchment. GSA Bulletin, 114(9), 1143–1158. https://doi.org/10.1130/0016-7606(2002)114<1143:wpmbaa>2.0.co;2

10.1130/0016-7606(2002)114%3C1143:WPMBAA%3E2.0.CO;2

Cites

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Cites

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Cites

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Cites

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Cites

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Cites

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Cites

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Cites

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Cites

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Cites

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Cites

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Contact

Hampl, Ferdinand J.

ferdinand.j.hampl@tu-berlin.de;


Citiation

Hampl, F. J., Schiperski, F., Schwerdhelm, C., Stroncik, N., Bryce, C., von Blanckenburg, F., & Neumann, T. (2022). Mineralogical and geochemical data of two weathering profiles in a Mediterranean and a humid climate region of the Chilean Coastal Cordillera [Data set]. GFZ Data Services. https://doi.org/10.5880/FIDGEO.2022.035


Geo location(s)

La Campana soil pit

La Campana drilling site

Nahuelbuta soil pit

Nahuelbuta drilling site