02 · Research

Sediment routing

past

Rivers carry a geochemical fingerprint of the landscapes they drain. This project developed techniques to unmix bulk sediment geochemistry into source-region contributions, reconstructing the erosional history of entire continental-scale drainage systems from their downstream deposits — a source-to-sink approach that links mountain erosion rates to the stratigraphic record in ocean basins.

Braided river from space
River delta from space
Glaciated landscape
Earth from orbit
Mountain range from space
River channels from space

Publications

2026
Ruby, A., McNab, F., Schildgen, T., Wickert, A. S., & Fernandes, V. M. How sediment supply, sea-level and glacial isostatic oscillations affect river long-profile evolution and terrace formation. AGU Advances, 7. doi.org/10.1029/2025AV002035
terracessedimentstudent-ledaccepted
2023
Basilone, L., Roberts, G. G., Maia de Almeida, N., Fernandes, V. M., Souza, A. C. B., Alves, D. P. V., & Jovane, L. Cretaceous to Recent tectono-sedimentary history and subsidence of the Barreirinhas, Ceará and Potiguar Basins, Brazilian Equatorial Margin. Basin Research. doi.org/10.1111/bre.12810
dynamic toposediment
2021
Lipp, A. G., Roberts, G. G., Whittaker, A., Gowing, C., & Fernandes, V. M. Source region geochemistry from unmixing downstream sedimentary elemental compositions. G-cubed, 22(10), e2021GC009838. doi.org/10.1029/2021GC009838
sediment
2021
Wapenhans, I., Fernandes, V. M., O’Malley, C., & Roberts, G. Scale-dependent contributors to river profile geometry. JGR: Earth Surface, 126(6), e2020JF005879. doi.org/10.1029/2020JF005879
sedimentstudent-led
2020
Lipp, A. G., Roberts, G. G., Whittaker, A. C., Gowing, C. J. B., & Fernandes, V. M. River sediment geochemistry as a conservative mixture of source regions: observations and predictions from the Cairngorms, UK. JGR: Earth Surface, 125, e2020JF005700. doi.org/10.1029/2020JF005700
sediment
2019
Fernandes, V. M., Roberts, G. G., White, N., & Whittaker, A. Continental-scale landscape evolution: a history of North American topography. JGR: Earth Surface, 124(11), 2689–2722. doi.org/10.1029/2018JF004979
dynamic toposediment
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