Deep Rock Weathering Episode 3 – Reagents that Dissolve Minerals

von Blanckenburg, F.; Schulz, Andreas

doi:10.48440/gfz.3.3.2022.006

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Deep Rock Weathering Episode 3 – Reagents that Dissolve Minerals

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von Blanckenburg, F.
3.3 Earth Surface Geochemistry, 3.0 Geochemistry, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

Schulz, Andreas
Filmbüro Potsdam;

External Ressource

https://datapub.gfz-potsdam.de/download/10.48440.GFZ.3.3.2022.006/
(Publisher version)

https://doi.org/10.48440/gfz.3.3.2022.002
(Supplementary material)

https://youtu.be/HfLCACmpoQU
(Supplementary material)

https://youtu.be/7Kl_d4ufL-Q
(Supplementary material)

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Citation

von Blanckenburg, F., Schulz, A. (2023): Deep Rock Weathering Episode 3 – Reagents that Dissolve Minerals, Potsdam : GFZ German Research Centre for Geosciences.
https://doi.org/10.48440/gfz.3.3.2022.006

Cite as: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5014820

Abstract

To weather rock, reagents are required. For example, CO2 is found in rainwater as carbonic acid or CO2 is produced by plant roots and by microbes. Through the large fractures carbonic acid and CO2 reach great depth – dissolved in water. Through the fine fractures they reach the interior of the rock. There they dissolve minerals, like the feldspar. New, completely different minerals form, for example clay minerals. They create fine fractures through which water with carbon can penetrate further and the weathering begins again.