Laboratory experiments suggest that underwater gas eruptions—due to the venting of gas hydrates, for example—could trigger the formation of layers of suspended sediment in the ocean.
sediments
Posted inResearch Spotlights
Mud Could Have Made Meandering Rivers Long Before Plants Arrived
New evidence from 1.2-billion-year-old rocks suggests that single, sinuous channels could have formed in muddy floodplain sediments without the stabilizing help of vegetation.
Posted inEditors' Highlights
Dancing Dust on Comet 67P/Churyumov-Gerasimenko
Cometary activity moves sediments over the surface of 67P/Churyumov-Gerasimenko, with long-term sinks near the poles of the comet.
Posted inResearch Spotlights
Specious Timescales from Sedimentary Layers
Changing environments can dramatically change how quickly layers form in sedimentary rocks, leading to incorrect time estimates.
Posted inEditors' Highlights
Using Bayesian Inference to Improve Sediment-Transport Models
A new Bayesian approach is used for the estimation and uncertainty quantification of unobservable parameters required to model tracer evolution in ocean sediment transport and tracer concentrations.
Posted inResearch Spotlights
La química de los corales refleja la expansión económica del sudeste asiático
La erosión del suelo derivada del desarrollo económico mueve sedimentos hacia el mar del sur de China y también hacia los esqueletos de los corales.
Posted inResearch Spotlights
Coral Chemistry Reflects Southeast Asia’s Economic Expansion
Soil erosion from economic development sent sediments into the South China Sea—and into coral skeletons.
Posted inEditors' Highlights
Delta Degradation Leads to Exacerbated Greenhouse Gas Emissions
Seismic ship surveys and seabed elevation maps of the Yangtze subaqueous delta reveal how the reduction of sediment supply to the coastal ocean can trigger increased greenhouse gas emissions.
Posted inNews
The Bering Land Bridge Formed Much Later Than Previously Thought
New research reconstructs the Bering Strait’s flooding history, raising surprising questions about human migration and how ice sheets form.