Spreading olivine on beaches could accelerate ocean uptake of carbon dioxide and potentially limit climate change. The concept and execution still face some scrutiny from scientists.
erosion & weathering
Bank Retreat Controls River and Estuary Morphodynamics
Understanding and predicting the geomorphological response of fluvial and tidal channels to bank retreat underpins the robust management of water courses and the protection of wetlands.
A Unique Glimpse at Sediment Erosion and Deposition by Wind
The Lut Desert in Iran is an exceptional natural laboratory to study how wind moves sediment across the landscape. A new study quantifies erosional and depositional sediment fluxes of the desert.
Satellites Show Magnitude of Human Influence on River Sediment Flux
Dam-building has decreased the amount of sediment transported by rivers, while land use changes have increased the amount.
Small Catchments Sustain Silicon Signatures Following Storms
Watersheds have unique patterns of silicon export due to differences in subsurface water routing and biogeochemical reactions.
The Lost Topography Around Continental Rifts
Numerical models provide quantitative constraints on topography lost to erosion, showing how the sediment influx in a sedimentary basin reflects its tectonic and topographic evolution.
Extreme Lithium Isotope Fractionations During Intense Weathering
Extreme lithium fractionation is observed when primary minerals in andesite are transformed to secondary clay minerals and then to oxides with intensive chemical weathering in a tropical climate.
Biological Crusts Affected by Drought Can Still Stabilize Soils
Results of in situ experiments on natural microbial communities suggest that biological crusts can protect soils from erosion, but their protective role could be compromised under predicted future climate scenarios.
African World Heritage Sites Jeopardized by Rising Seas
Worsening flooding and erosion threaten places of “outstanding universal value” along the continent’s coastlines.
¿Es Venus volcánicamente activo? Nuevo enfoque podría proporcionar una respuesta
Una estrategia que combina la cartografía geológica con datos sobre cómo la superficie del planeta emite y absorbe la radiación de microondas podría potencialmente identificar flujos de lava recientes.