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The topography of the area is dominated by long narrow ridges and steep secondary spurs, with a high degree of rock outcrop on ridge crests, slopes and stream channels. Lower Ordovician sandstones [ 8 ] and mudstones intruded by numerous small quartz veins form the dominant geology. [ 9 ]
In southern Louisiana the word coulée (also spelled coolie) originally meant a gully or ravine usually dry or intermittent but becoming sizable during rainy weather. As stream channels were dredged or canalized, the term was increasingly applied to perennial streams, generally smaller than bayous. The term is also used for small ditches or ...
Gully erosion may also advance laterally through similar methods, including mass movement, acting on the gully walls (banks), and the development of 'branches' (a type of tributary). Gullies reduce the productivity of farmlands where they incise into the land and produce sediment that may choke downstream waterbodies and reduce water quality ...
With rainfall beginning shortly before 8 a.m. Wednesday, Abilene Regional Airport reported 1.31 inches by noon.
Example on a topographical map, and how it would look in the real world. Typical draw, Little Carpathians A draw, sometimes known as a re-entrant in orienteering, is a terrain feature formed by two parallel ridges or spurs with low ground in between them.
In a traditional military formation, soldiers march in ranks (the depth of the formation is the number of ranks) and files (the width of the formation is the number of files), so, if a column of soldiers approaches a narrow pass, the formation must narrow, and so the files on the outside must be ordered to the rear (or to some other position) so that the column has fewer files and more ranks.
Gully erosions occur due to sandy soil being unable to withstand the runoff and eventually eroding away, leaving gaping gullies that swallow homes and other infrastructure. Gullies and areas exposed to erosion in South Eastern Nigeria tripled from about 1.33% (1,021 km 2 ) in 1976 to about 3.7% (2,820 km 2 ) in 2006, making the region the most ...
Captain Joseph Shippen wrote to his father, Edward Shippen III: "It was a scandalous thing to leave the Gully near Fort Granville just as Nature left it." [ 7 ] : 391–92 The French and Indian raid led to retaliation in the form of the Kittanning Expedition , led by Lieutenant Armstrong's brother, Colonel John Armstrong . [ 1 ]