- published: 20 Aug 2006
- views: 50758
Loess (/ˈloʊ.əs/, /ˈlʌs/, /ˈlɛs/, or UK /ˈlɜrs/) is an aeolian sediment formed by the accumulation of wind-blown silt, typically in the 20–50 micrometre size range, twenty percent or less clay and the balance equal parts sand and silt that are loosely cemented by calcium carbonate. It is usually homogeneous and highly porous and is traversed by vertical capillaries that permit the sediment to fracture and form vertical bluffs.
The word loess, with connotations of origin by wind-deposited accumulation, is of German origin and means “loose.” It was first applied to Rhine River valley loess about 1821.
Loess is homogeneous, porous, friable, pale yellow or buff, slightly coherent, typically non-stratified and often calcareous. Loess grains are angular with little polishing or rounding and composed of crystals of quartz, feldspar, mica and other minerals. Loess can be described as a rich, dust-like soil.
Loess deposits may become very thick; more than a hundred metres in areas of China and the Midwestern United States. It generally occurs as a blanket deposit that covers areas of hundreds of square kilometres and tens of metres thick.
I remember when I was just a little child
I remember when all of this felt so alive
I remember when I could see and I could smile
I remember when I would hope and I would try
I remember when I would stare out at the miles
I remember when I could fall deep in blue skies
I remember when I was just a little child
I remember when all of this felt so alive
now I look around and all of this just feels like nothing
now I look around and all of this is so declined
now I look around and wonder why my heart feels nothing
now I look around and wonder why the blue skies died
now I look around, I realize that I've been tainted
now I look around, I see the world through blurry eyes
now I look around and all of this just feels like nothing
now I look around and all of this is so declined