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Tuwaiq Tower
Jabal Tuwaiq (, Tuwaiq Mountain) is a narrow escarpment that cuts through the plateau of Najd in central Arabia, running approximately from the southern border of Al-Qasim in the north, to the northern edge of the Rub' al Khali desert near Wadi ad-Dawasir in the south. It is high and also has a Middle Jurassic stratigraphic section. The eastern side slopes downwards gradually, while the western side ends in an abrupt manner. The escarpment can be thought of as a narrow plateau, though the locals refer to it as a ''jebel'' ("mount"). Marshall Cavendish used the name "Tuwayr Mountains" to describe mountains of central Arabia, distinct from the Shammar Mountains, Shammar in the north, the Dhofar Mountains, Dhofar in the south, and Al Hajar Mountains, the Hajar to the east. Many narrow valleys (''wadis'') run along its sides, such as Wadi Hanifa, and a group of towns lie on its central section, including the Saudi Arabia, Saudi capital, Riyadh. Many settlements have historically ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wadi
Wadi ( ; ) is a river valley or a wet (ephemerality, ephemeral) Stream bed, riverbed that contains water only when heavy rain occurs. 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. Permanent channels do not exist, due to lack of continual water flow. Water percolates down into the stream bed, causing an abrupt loss of energy and resulting in vast deposition. Wadis may develop dams of sediment that change the stream patterns in the next flash flood. Wadis tend to be associated with centers of human population because sub-surface water is sometimes available in them. Nomadic and pastoral desert peoples will rely on seasonal vegetation found in wadis, even in regions as dry as the Sahara, as they travel in complex transhumance routes. The centrality of wadis to water – and human life – in desert environments gave birth to the distinct sub-field of wadi h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Al-Zulfi City
Al-Zulfi is the most populous city in the Al Zulfi, Al-Zulfi Governorate, which encompasses the Al-Zulfi Emirate of Riyadh Province within the Saudi Arabia, Kingdom of Saudi Arabia. It is situated in the center of the governorate, on the periphery of Shuaib Samnan, between the Tuwaiq, Tuwaiq Mountains and the sand dunes of Nafud desert, Nafud al-Thuwairat. The city's population is 68,317. Name The etymology of the name Al-Zulfi is unclear, with multiple proposed explanations. One hypothesis suggests that it derives from the name Al-Zlifat, derived from the Tuwaiq, Tuwaiq Mountains, which were thought to be the source of the name. However, Ibn Khamis offers an alternate interpretation. It has been proposed that the term 'Zulfi' refers to the villages that surround Al-Zulfi, as documented by Ibn Balihad. Additionally, some have proposed that the term originated from Izdelaf, an Arabic word denoting movement from one location to another. In his dictionary, Ibn Balihad stated: "I a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Escarpments
A list of escarpments follows below. Planets Earth Africa * Elgeyo Escarpment (Kenyan Rift Valley, Great Rift Valley) * Great Escarpment, Southern Africa **Including the Drakensberg and God's Window in Mpumalanga's Eastern Escarpment * Bandiagara Escarpment (Mali) * Zambezi Escarpment (Zambia) * Geography of Madagascar#East coast, East coast, Madagascar Antarctica * Usas Escarpment Asia * Sharon Escarpment, Israel * Tuwaiq, Saudi Arabia * Vindhya Range, India * Western Ghats, India * Wulian Feng, China Australia and New Zealand * Australia ** Great Escarpment, Australia ** Darling Scarp ** Illawarra escarpment, Illawarra Escarpment ** Lake George (New South Wales), Lake George Escarpment ** Nullarbor Plain#Geology and Geography, Nullarbor Escarpment * New Zealand ** The western slope of the Southern Alps (along the Alpine Fault) ** The Kaimai Range, Kaimai escarpment, above the Hauraki Plains ** The Paekākāriki escarpment between Paekākāriki and Pukerua Bay Europe * Eng ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ad-Dahna Desert
Ad-Dahna Desert is the central division of the Arabian Desert. It is a corridor of sandy terrain forming a bow-like shape that connects an-Nafud desert in the north to Rub' al-Khali desert in the south. Its length is more than siding Twaik Mountains from the east and does not exceed in width. It is also considered the geographical margin separating Al-Ahsa Province from Najd. Al-Dahna Desert is therefore the string that connects the great deserts of Saudi Arabia. The desert is a series of seven successive deserts, separated from one another by plains. Roads pass through Al-Dahnā, linking Kuwait with Al-Zilfī and Riyadh and connecting Riyadh with Hasa. Ad-Dahna desert is formed of high sand dunes spreading horizontally which are called veins (), mostly red in color since it contains Iron Oxides. Caves Beneath the harsh deserts of Saudi Arabia lie dark chambers and complex mazes filled with crystalline structures, stalactites and stalagmites. The limestone floor of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mecca
Mecca, officially Makkah al-Mukarramah, is the capital of Mecca Province in the Hejaz region of western Saudi Arabia; it is the Holiest sites in Islam, holiest city in Islam. It is inland from Jeddah on the Red Sea, in a narrow valley above sea level. Its metropolitan population in 2022 was 2.4million, making it the List of cities in Saudi Arabia by population, third-most populated city in Saudi Arabia after Riyadh and Jeddah. Around 44.5% of the population are Saudis, Saudi citizens and around 55.5% are Muslim world, Muslim foreigners from other countries. Pilgrims more than triple the population number every year during the Pilgrimage#Islam, pilgrimage, observed in the twelfth Islamic calendar, Hijri month of . With over 10.8 million international visitors in 2023, Mecca was one of the ten List of cities by international visitors, most visited cities in the world. Mecca is generally considered "the fountainhead and cradle of Islam". Mecca is revered in Islam as the birthp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Highway 40 (Saudi Arabia)
Highway 40 () is a major east–west six-lane controlled-access highway in Saudi Arabia, spanning 1,395 km (867 mi). The highway connects Jeddah, the second-largest city in the kingdom, on the western coast of Saudi Arabia to Dammam, the sixth-largest city on the eastern coast and the largest in the Eastern Province. Apart from Jeddah and Dammam, Highway 40 also runs near or through Mecca, Ta'if, Riyadh, Abqaiq and Khobar along its length, and provides access to the Mahazat as-Sayd and Saja and Umm Al Ramth wildlife sanctuaries. The highway consists of three traffic lanes and an emergency lane on each side (a total of six traffic lanes and eight total lanes) separated by a median strip. All intersections of the highway are grade separated. The route traverses the mostly flat Najd plateau, and thus requires no bridges or tunnels for most of its length. Near the western part, the highway twists and turns around the Hejaz mountains, before reaching the western coastal plain. Sever ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aramco
Saudi Aramco ( ') or Aramco (formerly Arabian-American Oil Company), officially the Saudi Arabian Oil Company, is a majority state-owned petroleum and natural gas company that is the national oil company of Saudi Arabia. , it is the fourth- largest company in the world by revenue and is headquartered in Dhahran. Saudi Aramco has both the world's second-largest proven crude oil reserves, at more than , and largest daily oil production of all oil-producing companies. Saudi Aramco operates the world's largest single hydrocarbon network, the Master Gas System. In 2024, its oil production total was 12.7 million barrels of oil equivalent per day, and it manages over one hundred oil and gas fields in Saudi Arabia, including 288.4 trillion standard cubic feet (scf) of natural gas reserves. Along the Eastern Province, Saudi Aramco most notably operates the Ghawar Field (the world's largest onshore oil field) and the Safaniya Field (the world's largest offshore oil field). [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petroleum Reservoir
A petroleum reservoir or oil and gas reservoir is a subsurface accumulation of hydrocarbons contained in porous or fractured rock formations. Such reservoirs form when kerogen (ancient plant matter) is created in surrounding rock by the presence of high heat and pressure in the Earth's crust. Reservoirs are broadly classified as ''conventional'' and '' unconventional'' reservoirs. In conventional reservoirs, the naturally occurring hydrocarbons, such as crude oil (petroleum) or natural gas, are trapped by overlying rock formations with lower permeability, while in unconventional reservoirs the rocks have high porosity and low permeability, which keeps the hydrocarbons trapped in place, therefore not requiring a cap rock. Reservoirs are found using hydrocarbon exploration methods. Oil field An oil field is an area of accumulated liquid petroleum underground in multiple (potentially linked) reservoirs, trapped as it rises to impermeable rock formations. In industrial te ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Upper Jurassic
The Late Jurassic is the third epoch of the Jurassic Period, and it spans the geologic time from 161.5 ± 1.0 to 143.1 ± 0.8 million years ago (Ma), which is preserved in Upper Jurassic strata.Owen 1987. In European lithostratigraphy, the name "Malm" indicates rocks of Late Jurassic age. In the past, ''Malm'' was also used to indicate the unit of geological time, but this usage is now discouraged to make a clear distinction between lithostratigraphic and geochronologic/chronostratigraphic units. Subdivisions The Late Jurassic is divided into three ages, which correspond with the three (faunal) stages of Upper Jurassic rock: Paleogeography During the Late Jurassic Epoch, Pangaea broke up into two supercontinents, Laurasia to the north, and Gondwana to the south. The result of this break-up was the emergence of the Atlantic Ocean, which initially was relatively narrow. Life forms This epoch is well known for many famous types of dinosaurs, such as the sauropods, the theropods, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yaqut Al-Hamawi
Yāqūt Shihāb al-Dīn ibn-ʿAbdullāh al-Rūmī al-Ḥamawī (1179–1229) () was a Muslim scholar of Byzantine ancestry active during the late Abbasid period (12th–13th centuries). He is known for his , an influential work on geography containing valuable information pertaining to biography, history and literature as well as geography. Life ''Yāqūt'' (''ruby'' or '' hyacinth'') was the '' kunya'' of Ibn Abdullāh ("son of Abdullāh"). He was born in Constantinople, the capital of the Byzantine Empire, called in Arabic al-Rūm, whence his '' nisba'' "al-Rūmi". Captured in war and enslaved, Yāqūt became " mawali" to ‘Askar ibn Abī Naṣr al-Ḥamawī, a trader of Baghdad, Iraq, the seat of the Abbasid Caliphate, from whom he received the '' laqab'' "al-Hamawī". As ‘Askar's apprentice, he learned about accounting and commerce, becoming his envoy on trade missions and travelling twice or three times to Kish in the Persian Gulf. In 1194, ‘Askar stopped his salar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sudair
Sudair or Sudayr () is a historical region in Najd in the central of Saudi Arabia, and is located approximately 150 km north of the Saudi capital, Riyadh. The region lies in a valley directly to the east of the Tweig escarpment, which runs across Najd starting from Sudair in the north and ending near Wadi ad-Dawasir in the south. Before the modern era, the region, like most others in Najd, depended on the valley's ability to retain rainwater, and its people mainly subsisted on the cultivation of grains and dates. Families of farmers were ruled by local Emirs in their various settlements around Sudair before the modern era. The local variety of dates in Sudair is known as ''kudry'', and is darker in color and has a stronger flavor than other varieties of dates grown in the country. Graded as low quality locally due to its commonality, the ''kudry'' is highly prized abroad and around other regions of Arabia. Sudair's towns and villages include Harmah, Al Majma'ah, Al-Ja ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
