The valley's silty soil, or loess, was deposited by wind, not by the flooding.
Three years earlier they deposited a wind turbine blade at the gallery, with an official request for it to be made part of the museum's permanent collection.
The arrangement of sedimentary beds tilted at different angles to each other, indicating that the beds were deposited by wind or flowing water.
Absent plate tectonics, the most likely explanation for the angled layers has to do with the physical manner in which they were built up, such as being deposited by wind or by water.
Loess (the word, at least in Iowa, rhymes with "bus") is soil that was ground into a fine silt by glaciers between 13,000 and 24,000 years ago and then deposited by wind over 1,000 square miles of Iowa, eventually to be collected in bluffs that stand 200 feet (60 metres) high.
On the east the plain is bounded by the sea, except for the break caused by the Shandong Hills; on the west it is flanked by the Taihang Mountains, which constitute the eastern edge of the Loess Plateau (loess is loamy material deposited by wind).
The terrigenous input of organic matter is restricted to dust deposited by wind and rain.
Most intriguing of all, it appears to be the first martian meteorite made of sediment, deposited by wind or water.
The renewal of a stand of trees through either natural means (seeded onsite or adjacent stands or deposited by wind, birds, or animals) or artificial means (by planting seedlings or direct seeding).
Much of the Vojvodina is blanketed by portions of a former plateau that rose up to 100 feet (30 metres) above the territory's floodplains; the remnants are composed of fine particles of loess deposited by winds during the last glacial period in Europe.
