Erosion of Earth's topography entrains sediment in rivers flowing across mountains, canyons and other naturally steep landscapes within the catchment. This silt, sand and gravel is transported ...

Researchers used black sediment to represent large grains, or "gravel" in rivers, and white sediment as "sand" to create a model of an alluvial fan. Disclaimer: AAAS and EurekAlert! are not ...

More than 200 million gallons of water poured out of Lawn Lake on July 15, 1982, when the earthen dam collapsed. Two-ton boulders and enormous trees tumbled down the mountain, ripping open the land ...

Paleoclimate records for the last 400,000 years in the study region of Hajar mountains, Oman. This includes alluvial records of wetter (blue) and drier (orange) conditions from both the sample sites ...