West African lateritic pediments: Landform-regolith evolution processes and mineral exploration pitfalls

D Chardon, JL Grimaud, A Beauvais, O Bamba - Earth-Science Reviews, 2018 - Elsevier
This paper is a contribution to the understanding of surface dynamics of tropical shields over
geological timescales. Emphasis is put on the fundamental and applied implications of …

[HTML][HTML] Landform-regolith patterns of Northwestern Africa: Deciphering Cenozoic surface dynamics of the tropical cratonic geosystem

D Chardon - Earth-Science Reviews, 2023 - Elsevier
The tropical cratonic geosystem encompasses non-orogenic continental domains of the
tropical belt that developed and preserved Cenozoic lateritic regolith mantles (ie, the …

Regolith mass balance inferred from combined mineralogical, geochemical and geophysical studies: Mule Hole gneissic watershed, South India

JJ Braun, M Descloitres, J Riotte, S Fleury… - … et Cosmochimica Acta, 2009 - Elsevier
The aim of this study is to propose a method to assess the long-term chemical weathering
mass balance for a regolith developed on a heterogeneous silicate substratum at the small …

[HTML][HTML] Bedrock depth evaluation using microtremor measurement: empirical guidelines at weathered granite formation in Singapore

SW Moon, P Subramaniam, Y Zhang, G Vinoth… - Journal of Applied …, 2019 - Elsevier
Detection of bedrock depth is one of the critical site investigation procedures for seismic
hazard analysis and underground developments that may encounter varying rock formation …

Chemical and physical erosion rhythms of the West African Cenozoic morphogenesis: The 39Ar‐40Ar dating of supergene K‐Mn oxides

A Beauvais, G Ruffet, O Hénocque… - Journal of Geophysical …, 2008 - Wiley Online Library
Chemical weathering and mechanical erosion are first‐order processes of long‐term tropical
morphogenesis, which is still poorly deciphered for lack of time constraints. We address this …

[HTML][HTML] The role of superficial geology in controlling groundwater recharge in the weathered crystalline basement of semi-arid Tanzania

E Zarate, D Hobley, AM MacDonald, RT Swift… - Journal of Hydrology …, 2021 - Elsevier
Abstract Study region Little Kinyasungwe River Catchment, central semi-arid Tanzania.
Study focus The structure and hydraulic properties of superficial geology can play a crucial …

A simple model for regolith formation by chemical weathering

J Braun, J Mercier, F Guillocheau… - Journal of Geophysical …, 2016 - Wiley Online Library
We present here a new model for the formation of regolith on geological timescales by
chemical weathering based on the assumption that the rate of chemical weathering is …

Electrical imaging of lateritic weathering mantles over granitic and metamorphic basement of eastern Senegal, West Africa

M Ritz, JC Parisot, S Diouf, A Beauvais, F Dione… - Journal of Applied …, 1999 - Elsevier
The electrical properties of several tens of metres of lateritic weathering mantle were
investigated by using electrical resistivity tomography (ERT) in two basement areas of …

Ferricrete biochemical degradation on the rainforest–savannas boundary of Central African Republic

A Beauvais - Geoderma, 2009 - Elsevier
In southeastern Central African Republic the lateritic weathering mantles are capped by 2 to
5 m thick ferricretes, which previously formed under a seasonal tropical climate. The actual …

[HTML][HTML] Hydraulic conductivity and geophysics (ERT) to assess the aquifer recharge capacity of an inland wetland in the Brazilian Savanna

CA Moreira, V Rosolen, LM Furlan, RC Bovi… - Environmental …, 2021 - Elsevier
The inland wetlands can perform the storage of water on the surface and the recharge of
aquifers. Even a small wetland can work as a local point of water infiltration, influencing and …