The tunnel will traverse multiple difficult subsoil layers: a surface of historical and active landfill materials, including spoil from London tunneling projects and decades-old power station fly ash, a thick layer of alluvium composed of silts, clays, and peat, and, finally, highly variable chalk.
—
Theo Burman,
MSNBC Newsweek,
6 July 2025
At some point, alluvium buried the entire tusk, possibly from major storm flooding.
In a new study published in Antiquity, researchers from Cambridge and Nottingham examined a 16-feet sediment core from Aldborough in Yorkshire, an important center of metal production located at a former Roman tribal town of Brigantes.
—
Maria Mocerino,
Interesting Engineering,
14 Sep. 2025
Direct dating Paleontologists often estimate the age of plant and animal fossils based on sediments where the organic material was preserved.
Howell said a silt protection barrier on the street near the construction site became clogged, leading to an overflow of water.
—
Matthew Adams,
Fort Worth Star-Telegram,
8 Sep. 2025
The flood left a silt dirt behind, which can be home to these tiny flies that lay their eggs in organic matter typically found in sewer or piping systems.
The avalanche temporarily dammed the Lonza River, which runs through Blatten, and small lakes, filled with dead trees and detritus from homes, formed on each side of the village.
—
Daniel A. Gross,
New Yorker,
27 Aug. 2025
But its detritus remains, giving rise to streaks that wow sky watchers every August.
—
Clara Moskowitz,
Scientific American,
11 Aug. 2025
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