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Gully – Landform created by running water and/or mass movement eroding sharply into soil; Guyot – Isolated, flat-topped underwater volcano mountain; Hanging valley – A tributary valley that meets the main valley above the valley floor; Headland – Landform extending into a body of water, often with significant height and drop
Issaouane Erg, Algeria Linear Dunes, Namib Sand Sea. An erg (also sand sea or dune sea, or sand sheet if it lacks dunes) is a broad, flat area of desert covered with wind-swept sand with little or no vegetative cover. [1] The word is derived from the Arabic word ʿirq (عرق), meaning "dune field". [2]
Dune fields in the Australian desert. Sand dunes of the Empty Quarter to the east of Liwa Oasis, United Arab Emirates. A dune is a landform composed of wind- or water-driven sand.
As barchan dunes migrate, smaller dunes outpace larger dunes, catching-up the rear of the larger dune and eventually appear to punch through the large dune to appear on the other side. The process appears superficially similar to waves of light, sound, or water that pass directly through each other, but the detailed mechanism is very different.
A landform is a natural or anthropogenic [1] [2] land feature on the solid surface of the Earth or other planetary body. Landforms together make up a given terrain , and their arrangement in the landscape is known as topography .
Ridge and swale, or in dunal areas dune and swale, is a landform consisting of regular, parallel ridges alternating with marshy depressions. [1] Ridge-and-swale landscapes are most commonly formed by the gradual movement of a beach , for example as a result of gradually fluctuating water levels, or the shifting meanders of a river.
Farhang-e-Asifiya (Urdu: فرہنگ آصفیہ, lit. 'The Dictionary of Asif') is an Urdu-to-Urdu dictionary compiled by Syed Ahmad Dehlvi. [1] It has more than 60,000 entries in four volumes. [2] It was first published in January 1901 by Rifah-e-Aam Press in Lahore, present-day Pakistan. [3] [4]
There are various cases where inland dunes have developed next to eskers after deglaciation. [7] These dunes are often found in the leeward side of eskers, if the esker is not oriented parallel to prevailing winds. [7] Examples of dunes developed on eskers can be found in both Swedish and Finnish Lapland. [7] [8] Lakes may form within ...