|
Umm Al Samim
The Umm al Samim () (also known as the Umm as Samim) is a quicksand area on the eastern edge of the Rub al'khali desert largely within Oman's borders. The waters, such as they are, drain into this brackish low-lying closed basin area off the Omani mountains and the wadis of the Rub al'khali. The Al Samim (known locally as the 'Mother of Poisons' or the 'Mother of Worries') is a salt marsh with a solid-looking crust, but can be very treacherous when broken through. There is little vegetation. Sir Wilfred Thesiger was the first European to see the area in the late 1940s after his travels from Salalah Salalah ( ar, صَلَالَة, Ṣalālah) is the capital and largest city of the southern Omani governorate of Dhofar. Its population in 2009 was about 197,169. Salalah is the third-largest city in the Sultanate of Oman, and the largest city ... in Oman. References Deserts of Oman Landforms of Oman Endorheic basins of Asia Salt marshes {{Oman-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quicksand
Quicksand is a colloid consisting of fine granular material (such as sand, silt or clay) and water. It forms in saturated loose sand when the sand is suddenly agitated. When water in the sand cannot escape, it creates a liquefied soil that loses strength and cannot support weight. Quicksand can form in standing water or in upward flowing water (as from an artesian spring). In the case of upward flowing water, forces oppose the force of gravity and suspend the soil particles. The saturated sediment may appear quite solid until a sudden change in pressure or shock initiates liquefaction. This causes the sand to form a suspension and lose strength. The cushioning of water gives quicksand, and other liquefied sediments, a spongy, fluid-like texture. Objects in liquefied sand sink to the level at which the weight of the object is equal to the weight of the displaced soil/water mix and the submerged object floats due to its buoyancy. Soil liquefaction may occur in partially satura ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rub Al'khali
The Rub' al KhaliOther standardized transliterations include: / . The ' is the assimilated Arabic definite article, ', which can also be transliterated as '. (; ar, ٱلرُّبْع ٱلْخَالِي (), the "Empty Quarter") is the sand desert (erg) encompassing most of the southern third of the Arabian Peninsula. The desert covers some (the area of long. 44°30′−56°30′E, and lat. 16°30′−23°00′N) including parts of Saudi Arabia, Oman, the United Arab Emirates, and Yemen. It is part of the larger Arabian Desert. Description Terrain The desert is long, and wide. Its surface elevation varies from in the southwest to around sea level in the northeast. The terrain is covered with sand dunes with heights up to , interspersed with gravel and gypsum plains. The sand is of a reddish-orange color due to the presence of feldspar. There are also brackish salt flats in some areas, such as the Umm al Samim area on the desert's eastern edge. Ali Al-Naimi reports ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Desert
A desert is a barren area of landscape where little precipitation occurs and, consequently, living conditions are hostile for plant and animal life. The lack of vegetation exposes the unprotected surface of the ground to denudation. About one-third of the land surface of the Earth is arid or semi-arid. This includes much of the polar regions, where little precipitation occurs, and which are sometimes called polar deserts or "cold deserts". Deserts can be classified by the amount of precipitation that falls, by the temperature that prevails, by the causes of desertification or by their geographical location. Deserts are formed by weathering processes as large variations in temperature between day and night put strains on the rocks, which consequently break in pieces. Although rain seldom occurs in deserts, there are occasional downpours that can result in flash floods. Rain falling on hot rocks can cause them to shatter, and the resulting fragments and rubble strewn over t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oman
Oman ( ; ar, عُمَان ' ), officially the Sultanate of Oman ( ar, سلْطنةُ عُمان ), is an Arabian country located in southwestern Asia. It is situated on the southeastern coast of the Arabian Peninsula, and spans the mouth of the Persian Gulf. Oman shares land borders with Saudi Arabia, the United Arab Emirates, and Yemen, while sharing maritime borders with Iran and Pakistan. The coast is formed by the Arabian Sea on the southeast, and the Gulf of Oman on the northeast. The Madha and Musandam exclaves are surrounded by the United Arab Emirates on their land borders, with the Strait of Hormuz (which it shares with Iran) and the Gulf of Oman forming Musandam's coastal boundaries. Muscat is the nation's capital and largest city. From the 17th century, the Omani Sultanate was an empire, vying with the Portuguese and British empires for influence in the Persian Gulf and Indian Ocean. At its peak in the 19th century, Omani influence and control extended across ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Closed Basin
An endorheic basin (; also spelled endoreic basin or endorreic basin) is a drainage basin that normally retains water and allows no outflow to other external bodies of water, such as rivers or oceans, but drainage converges instead into lakes or swamps, permanent or seasonal, that equilibrate through evaporation. They are also called closed or terminal basins, internal drainage systems, or simply basins. Endorheic regions contrast with exorheic regions. Endorheic water bodies include some of the largest lakes in the world, such as the Caspian Sea, the world's largest inland body of water. Basins with subsurface outflows which eventually lead to the ocean are generally not considered endorheic; they are cryptorheic. Endorheic basins constitute local base levels, defining a limit of erosion and deposition processes of nearby areas. Etymology The term was borrowed from French ''endor(rh)éisme'', coined from the combining form ''endo-'' (from grc, ἔνδον ''éndon'' 'with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wadi
Wadi ( ar, وَادِي, wādī), alternatively ''wād'' ( ar, وَاد), North African Arabic Oued, is the Arabic term traditionally referring to a valley. In some instances, it may refer to a wet (ephemeral) riverbed that contains water only when heavy rain occurs. Etymology The term ' is very widely found in Arabic toponyms. Some Spanish toponyms are derived from Andalusian Arabic where ' was used to mean a permanent river, for example: Guadalcanal from ''wādī al-qanāl'' ( ar, وَادِي الْقَنَال, "river of refreshment stalls"), Guadalajara from ''wādī al-ḥijārah'' ( ar, وَادِي الْحِجَارَة, "river of stones"), or Guadalquivir, from ''al-wādī al-kabīr'' ( ar, اَلْوَادِي الْكَبِير, "the great river"). General morphology and processes Wadis are located on gently sloping, nearly flat parts of deserts; commonly they begin on the distal portions of alluvial fans and extend to inland sabkhas or dry lakes. In bas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salt Marsh
A salt marsh or saltmarsh, also known as a coastal salt marsh or a tidal marsh, is a coastal ecosystem in the upper coastal intertidal zone between land and open saltwater or brackish water that is regularly flooded by the tides. It is dominated by dense stands of salt-tolerant plants such as herbs, grasses, or low shrubs. These plants are terrestrial in origin and are essential to the stability of the salt marsh in trapping and binding sediments. Salt marshes play a large role in the aquatic food web and the delivery of nutrients to coastal waters. They also support terrestrial animals and provide coastal protection. Salt marshes have historically been endangered by poorly implemented coastal management practices, with land reclaimed for human uses or polluted by upstream agriculture or other industrial coastal uses. Additionally, sea level rise caused by climate change is endangering other marshes, through erosion and submersion of otherwise tidal marshes. However, r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wilfred Thesiger
Sir Wilfred Patrick Thesiger (3 June 1910 – 24 August 2003), also known as Mubarak bin Landan ( ar, مُبَارَك بِن لَنْدَن, ''the blessed one of London'') was a British military officer, explorer, and writer. Thesiger's travel books include ''Arabian Sands'' (1959), on his foot and camel crossing of the Empty Quarter of the Arabian Peninsula, and ''The Marsh Arabs'' (1964), on his time living with the Marsh Arabs of Iraq. Early life Thesiger was born in Addis Ababa, Ethiopia. He was the son of Wilfred Gilbert Thesiger, who was British Consul-General in Ethiopia from 1909 to 1919, and his wife Kathleen Mary Vigors. Thesiger's grandfather was Frederic Augustus Thesiger, 2nd Baron Chelmsford. Another Frederic Thesiger, a future Viceroy of India and the first Viscount Chelmsford, was an uncle, and the actor Ernest Thesiger was a cousin. Wilfred Thesiger and his younger brother were the only European children for most of his early years in Addis Ababa. He l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salalah
Salalah ( ar, صَلَالَة, Ṣalālah) is the capital and largest city of the southern Omani governorate of Dhofar. Its population in 2009 was about 197,169. Salalah is the third-largest city in the Sultanate of Oman, and the largest city in the Dhofar Province. Salalah is the birthplace of the former sultan, Qaboos bin Said. Salalah attracts many people from other parts of Oman and the Persian Gulf region during the monsoon/''khareef'' season, which spans from June to September. The climate of the region and the monsoon allows the city to grow some vegetables and fruits like coconut and bananas. There are many gardens within the city where these vegetables and fruits grow. History Salalah was the traditional capital of Dhofar, which reached the peak of prosperity in the 13th century thanks to the incense trade. Later it decayed, and in the 19th century it was absorbed by the Sultanate of Muscat. Between 1932 and 1970, Salalah was the residence of Said bin Taimur, the Sul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deserts Of Oman
A desert is a barren area of landscape where little precipitation occurs and, consequently, living conditions are hostile for plant and animal life. The lack of vegetation exposes the unprotected surface of the ground to denudation. About one-third of the land surface of the Earth is arid or Semi-arid climate, semi-arid. This includes much of the Polar regions of Earth, polar regions, where little precipitation occurs, and which are sometimes called polar deserts or "cold deserts". Deserts can be classified by the amount of precipitation that falls, by the temperature that prevails, by the causes of desertification or by their geographical location. Deserts are formed by weathering processes as large variations in temperature between day and night put strains on the Rock (geology), rocks, which consequently break in pieces. Although rain seldom occurs in deserts, there are occasional downpours that can result in flash floods. Rain falling on hot rocks can cause them to shatte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Landforms Of Oman
A landform is a natural or anthropogenic 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. Landforms include hills, mountains, canyons, and valleys, as well as shoreline features such as bays, peninsulas, and seas, including submerged features such as mid-ocean ridges, volcanoes, and the great ocean basins. Physical characteristics Landforms are categorized by characteristic physical attributes such as elevation, slope, orientation, stratification, rock exposure and soil type. Gross physical features or landforms include intuitive elements such as berms, mounds, hills, ridges, cliffs, valleys, rivers, peninsulas, volcanoes, and numerous other structural and size-scaled (e.g. ponds vs. lakes, hills vs. mountains) elements including various kinds of inland and oceanic waterbodies and sub-surface features. Mountains, hills, plateaux, and plains are t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endorheic Basins Of Asia
An endorheic basin (; also spelled endoreic basin or endorreic basin) is a drainage basin that normally retains water and allows no outflow to other external bodies of water, such as rivers or oceans, but drainage converges instead into lakes or swamps, permanent or seasonal, that equilibrate through evaporation. They are also called closed or terminal basins, internal drainage systems, or simply basins. Endorheic regions contrast with open and closed lakes, exorheic regions. Endorheic water bodies include some of the largest lakes in the world, such as the Caspian Sea, the world's largest inland body of water. Basins with subsurface outflows which eventually lead to the ocean are generally not considered endorheic; they are cryptorheic. Endorheic basins constitute local base levels, defining a limit of erosion and deposition processes of nearby areas. Etymology The term was borrowed from French ''endor(rh)éisme'', coined from the combining form ''endo-'' (from grc, ἔν ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Wilfred Thesiger")
.jpg "Click for more on -> Landforms Of Oman")
