Weathering in the Tropics: A Multidisciplinary Approach
A special issue of Minerals (ISSN 2075-163X). This special issue belongs to the section "Mineral Geochemistry and Geochronology".
Deadline for manuscript submissions: closed (9 May 2023) | Viewed by 3164
Special Issue Editors
Interests: surface and environmental geochemistry; geochronology and landscape evolution
Special Issue Information
Dear Colleagues,
Chemical weathering plays an important role in shaping the Earth’s surface, and it functions to moderate the terrestrial climate due to atmospheric/soil CO2 consumption during water–rock interactions.
Mass balances based on fluvial geochemistry have been carried out to quantify the removal of elements from continents to oceans and the impact of chemical weathering on the global carbon cycle, where inputs from rainfall require corrections. These studies have mainly have focused on basaltic and granitic watersheds in areas under various climates, reliefs and land uses.
Long-term weathering rates can be inferred from the ages of the weathering profiles preserved at a given landscape position, using 40Ar/39Ar and (U-Th)/He geochronology in supergene minerals, providing insight into the rates of landscape evolution in stable cratonic areas. In addition, the chemical weathering processes in the tropics are the main processes responsible for areas hosting significant supergene ore deposits, especially Al, Fe, Mn, Ni, Nb and P deposits.
Thus, this Special Issue aims to contribute with new studies related to the chemical weathering in the tropics, generating useful knowledge for mineral chemical weathering, atmospheric/soil CO2 consumption, geochronology of weathering profiles, landscape evolution and supergenic deposits.
Dr. Fabiano Tomazini Conceição
Dr. Alexandre Martins Fernandes
Guest Editors
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Keywords
- chemical weathering
- atmospheric/soil CO2 consumption
- water–rock interactions and watersheds
- geochronology of weathering profiles
- landscape evolution
- supergene deposits
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