Icicle-shaped features known as sand dikes form during ground shaking. New work reveals how these features can be used to date long-ago earthquakes.
sand
Posted inEditors' Highlights
A First Look at How Sand Behaves Inside a Rippled Bed
A detailed numerical model shows how sediment particles experience wave-driven shear stress inside and above a sea bed with sand ripples.
Posted inNews
Inside a Georgia Beach’s High-Tech Fight Against Erosion
Armed with drones and lasers, scientists are creating detailed 3D maps of Tybee Island’s shifting shoreline.
Posted inNews
Mini Dunes Form When Sand Stops Bouncing
Decoding how sand grains move and accumulate on Earth can also help scientists understand dune formation on Mars.
Posted inEditors' Highlights
Elementary, My Dear: Al & Be Give Evidence of Past Climate Change
10Be and 26Al concentrations in river sand reveal an increase in erosion rate in the Brazilian Highlands consistent with the Mid-Pleistocene Transition, a major climatic shift that occurred about 1 million years ago.
Posted inNews
Sand’s Role in Rerouting Meandering Rivers Is Bigger Than We Thought
Researchers delve into the dirt causing rivers to migrate.
Posted inNews
Sandy Fingerprints Trace Supply Sources
Geological forensics can trace raw materials back to their source. As global sand demand increases, a new tool could help identify illegal and informal sand mining.
Posted inNews
Fire Histories May Be Written on Grains of Sand
Tiny bits of quartz record the intensity of fires from hundreds or even thousands of years ago, potentially offering new ways to study historic fires and how heat affects soil.
Posted inNews
Arenas de aguas profundas y dónde encontrarlas
Antiguas avalanchas submarinas llevaron arena al abismo oceánico en el momento en que algunos menos lo esperaban.
Posted inThe Landslide Blog
An interesting erosive event in the Socavón Cochoa area of Viña del Mar, Chile
Dramatic erosion of a sand dune in Viña del Mar, Chile appears to be related to maintenance of a drainage pipe.