Enhanced silicate chemical weathering of the South African Plateau and its contribution to the global climate cooling trend during the late cretaceous

Global and Planetary Change 2026 Open access

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Authors: Esteban Gaitán, Emmanuelle Pucéat, Pierre Pellenard, Emmanuelle Venin, Fabrice Monna, Germain Bayon, Thierry Adatte, Cécile Robin, François Guillocheau
DOI: 10.1016/j.gloplacha.2026.105424
Cited by: 2
References: 123

Abstract

Climate cooling during the late Cretaceous (ca. 100–66 Ma) has been linked to CO 2 drawdown produced by enhanced denudation episodes recorded in the eastern margin of South America and western margin of South Africa. However, the onset of these episodes is recorded during rather than prior to the main climate cooling stage of the late Cretaceous, reported within the Santonian-Early Campanian interval (about 86–81 Ma). Here, we investigate the clay fraction (

Fields of Study & Subjects

Clay minerals and soil interactions Silicon Effects in Agriculture Geological and Geochemical Analysis

Publication details

Journal / source
Global and Planetary Change
Publisher
Elsevier BV
Volume
262
Pages
105424–105424
Publication date
23 March 2026
Language
EN