What used to be open water was heading towards alluvium, and oblivion.
—
Rob Crossan,
Condé Nast Traveler,
24 Mar. 2026
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.
Thanks to the cold water temperature, lack of natural light, and the layers of silt covering many of the artifacts, the ship and its contents were in remarkably good condition.
—
ArsTechnica,
ArsTechnica,
8 May 2026
Spider plants want loamy soil, according to Howe, which means an equal mixture of sand, silt, and clay.
Mazzei explains that Il Caggio features a combination of factors ideal for Sangiovese, including altitudes between 1,050 and 1,150 feet, which ensure balanced ripening, and deep and well-drained clay, schist, and calcareous marl soils dotted with a type of sandstone that imparts intense minerality.
—
Mike DeSimone,
Robb Report,
14 Dec. 2025
In Friuli Venezia Giulia, the soils are rich in marl and sandstone, locally referred to as ponca.
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