Loess
Aeolian sedimentsNot thinking of sanddunes but of finer material: silt.
Contains fine quartz, felspar and lime.
Occurs worldwide but in limited areas only. In Europe it is a relict of the Ice Ages. Blown out dust fixed where the wind slowed down and where some vegetation grew.
So u find it in the Upper Rhine Rift Valley where the slopes start (Bergstrasse, Kaiserstuhl), on the slopes facing south and west but even on the mountain tops, though much has been washed away and down in the meantime.
Maximum thickness in Germany is about 40 m. In Ukraine 80 m, in North-China (Yellow River) several 100 m. It occurs in the Prairies, Mississippee Valley, Pampas.
Drains well, fertile and easily arable.
Something which feeds many people.
Comments (6)
F. schönen Sonn- und Feiertag!
Red, conserve what u harvest.
Luke, when mud becomes shale: -rockhard- , hard rock music I mean.