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Shadah Al-asfal
Shadah Al-asfal Mountain is one of the Sarawat Mountains in southwestern Saudi Arabia and is considered one of the highest mountains in the Kingdom. Name Shadah in Arabic comes from singing. And it was mentioned in Mu'jam al-Buldan book as part of the two mountains, Sadah Al-asfal and Shadah Al-a'laa. Location and borders Sadah Al-asfal and Shadah Al-a'laa is the name given to a mountain range located in Tihamah Al-Bahah near the city of Makhwah and Qilwah, at an altitude of more than 2200 meters. The range located among the low plains of Tihamah, it is bordered on the southern side by the Shadah Al-asfal Mountain, which reaches a height of more than 1,500 meters above sea level. Shadah Al-asfal Mountain is located in southwestern Saudi Arabia and is inhabited by the Zahran tribe, which owns Shadah Al-asfal Mountain, and the Ghamd tribe, which owns Shadah Al-a'laa Mountain. It is one of the mountains of the Al Bahah region, on which the villages of Shadah Al-asfal are loca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sarawat Mountains
The Sarawat Mountains (), also known as the Sarat in singular case, is a mountain range in the western part of the Arabian Peninsula. In a broad sense, it runs parallel to the eastern coast of the Red Sea, and thus encompasses the mountains of Fayfa, Asir, Taif, and the Hijaz (which can be seen as including the Midian Mountains). In a narrow sense, the Sarawat start in Taif city in Saudi Arabia, and extend to the Gulf of Aden in the south, running along the entire western coast of Yemen, in what used to be North Yemen, and extend eastwards into part of what used to be South Yemen, thus running parallel to the Gulf of Aden. Geology These mountains are mainly rocky though some contain vegetation. Many of the peaks are fairly young and jagged, but some are smoother from weathering. Nearing the Yemeni border, the Sarawat begin to spread into individual peaks, and the Hejaz turns from a cliff to a gradual ascent up to the Yemeni Plateau. In Yemen, the Sarawat are divided i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Al-Bahah Province
Al-Baha Province, also known as Al-Baha Region ( ' ), also spelled as Al-Bahah, is a Provinces of Saudi Arabia, province in Saudi Arabia. It is the smallest province in the country by both area and population. History History of the Province Before Islam The province was the setting for the final days of the famous vagabond poet Al-Shanfara. It also produced rulers who governed parts of Oman and Iraq. The area contains inscriptions in Hebrew and others in the Musnad script, in addition to the idol Dhu al-Khalasa of the Daws tribe, and various other ancient Arabian carvings, inscriptions, and writings scattered on rocks in the province's mountains and valleys. Ancient Inhabitants of the Province The Sarawat Mountains, which include the highlands of Al-Baha, were once inhabited by the Amalek a group from the Extinct Arabs, pre-Islamic extinct Arabs. They remained there until they were overpowered and displaced from the entire Hejaz Mountains, Sarawat region by the Ghatar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nabataeans
The Nabataeans or Nabateans (; Nabataean Aramaic: , , vocalized as ) were an ancient Arabs, Arab people who inhabited northern Arabian Peninsula, Arabia and the southern Levant. Their settlements—most prominently the assumed capital city of Raqmu (present-day Petra, Jordan)—gave the name ''Nabatene'' () to the Arabian borderland that stretched from the Euphrates to the Red Sea. The Nabateans emerged as a distinct civilization and political entity between the 4th and 2nd centuries BC, with Nabataean Kingdom, their kingdom centered around a loosely controlled trading network that brought considerable wealth and influence across the ancient world. Described as fiercely independent by contemporary Greco-Roman accounts, the Nabataeans were annexed into the Roman Empire by Emperor Trajan in 106 AD. Nabataeans' individual culture, easily identified by their characteristic finely potted painted ceramics, was adopted into the larger Greco-Roman culture. They converted to Christi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crystallization
Crystallization is a process that leads to solids with highly organized Atom, atoms or Molecule, molecules, i.e. a crystal. The ordered nature of a crystalline solid can be contrasted with amorphous solids in which atoms or molecules lack regular organization. Crystallization can occur by various routes including Precipitation (chemistry), precipitation from solution, freezing of a liquid, or Deposition (phase transition), deposition from a gas. Attributes of the resulting crystal can depend largely on factors such as temperature, air pressure, cooling rate, or Solution (chemistry), solute concentration. Crystallization occurs in two major steps. The first is nucleation, the appearance of a crystalline phase from either a Supercooling, supercooled liquid or a supersaturation, supersaturated solvent. The second step is known as crystal growth, which is the increase in the size of particles and leads to a crystal state. An important feature of this step is that loose particles fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magma
Magma () is the molten or semi-molten natural material from which all igneous rocks are formed. Magma (sometimes colloquially but incorrectly referred to as ''lava'') is found beneath the surface of the Earth, and evidence of magmatism has also been discovered on other terrestrial planets and some natural satellites. Besides molten rock, magma may also contain suspended crystals and volcanic gas, gas bubbles. Magma is produced by melting of the mantle (geology), mantle or the Crust (geology), crust in various tectonics, tectonic settings, which on Earth include subduction zones, continental rift (geology), rift zones, mid-ocean ridges and Hotspot (geology), hotspots. Mantle and crustal melts migrate upwards through the crust where they are thought to be stored in magma chambers or trans-crustal crystal mush, crystal-rich mush zones. During magma's storage in the crust, its composition may be modified by Fractional crystallization (geology), fractional crystallization, contaminati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Precambrian
The Precambrian ( ; or pre-Cambrian, sometimes abbreviated pC, or Cryptozoic) is the earliest part of Earth's history, set before the current Phanerozoic Eon. The Precambrian is so named because it preceded the Cambrian, the first period of the Phanerozoic Eon, which is named after Cambria, the Latinized name for Wales, where rocks from this age were first studied. The Precambrian accounts for 88% of the Earth's geologic time. The Precambrian is an informal unit of geologic time, subdivided into three eons ( Hadean, Archean, Proterozoic) of the geologic time scale. It spans from the formation of Earth about 4.6 billion years ago ( Ga) to the beginning of the Cambrian Period, about million years ago ( Ma), when hard-shelled creatures first appeared in abundance. Overview Relatively little is known about the Precambrian, despite it making up roughly seven-eighths of the Earth's history, and what is known has largely been discovered from the 1960s onwards. The Precambrian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Igneous Rock
Igneous rock ( ), or magmatic rock, is one of the three main rock types, the others being sedimentary and metamorphic. Igneous rocks are formed through the cooling and solidification of magma or lava. The magma can be derived from partial melts of existing rocks in either a planet's mantle or crust. Typically, the melting is caused by one or more of three processes: an increase in temperature, a decrease in pressure, or a change in composition. Solidification into rock occurs either below the surface as intrusive rocks or on the surface as extrusive rocks. Igneous rock may form with crystallization to form granular, crystalline rocks, or without crystallization to form natural glasses. Igneous rocks occur in a wide range of geological settings: shields, platforms, orogens, basins, large igneous provinces, extended crust and oceanic crust. Geological significance Igneous and metamorphic rocks make up 90–95% of the top of the Earth's crust by volume. Igneous rock ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Granite
Granite ( ) is a coarse-grained (phanerite, phaneritic) intrusive rock, intrusive igneous rock composed mostly of quartz, alkali feldspar, and plagioclase. It forms from magma with a high content of silica and alkali metal oxides that slowly cools and solidifies underground. It is common in the continental crust of Earth, where it is found in igneous intrusions. These range in size from dike (geology), dikes only a few centimeters across to batholiths exposed over hundreds of square kilometers. Granite is typical of a larger family of ''granitic rocks'', or ''granitoids'', that are composed mostly of coarse-grained quartz and feldspars in varying proportions. These rocks are classified by the relative percentages of quartz, alkali feldspar, and plagioclase (the QAPF diagram, QAPF classification), with true granite representing granitic rocks rich in quartz and alkali feldspar. Most granitic rocks also contain mica or amphibole minerals, though a few (known as leucogranites) conta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saudi Arabia
Saudi Arabia, officially the Kingdom of Saudi Arabia (KSA), is a country in West Asia. Located in the centre of the Middle East, it covers the bulk of the Arabian Peninsula and has a land area of about , making it the List of Asian countries by area, fifth-largest country in Asia, the largest in the Middle East, and the List of countries and dependencies by area, 12th-largest in the world. It is bordered by the Red Sea to the west; Jordan, Iraq, and Kuwait to the north; the Persian Gulf, Bahrain, Qatar and the United Arab Emirates to the east; Oman to the southeast; and Yemen to Saudi Arabia–Yemen border, the south. The Gulf of Aqaba in the northwest separates Saudi Arabia from Egypt and Israel. Saudi Arabia is the only country with a coastline along both the Red Sea and the Persian Gulf, and most of Geography of Saudi Arabia, its terrain consists of Arabian Desert, arid desert, lowland, steppe, and List of mountains in Saudi Arabia, mountains. The capital and List of cities ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cambrian
The Cambrian ( ) is the first geological period of the Paleozoic Era, and the Phanerozoic Eon. The Cambrian lasted 51.95 million years from the end of the preceding Ediacaran period 538.8 Ma (million years ago) to the beginning of the Ordovician Period 486.85 Ma. Most of the continents lay in the southern hemisphere surrounded by the vast Panthalassa Ocean. The assembly of Gondwana during the Ediacaran and early Cambrian led to the development of new convergent plate boundaries and continental-margin arc magmatism along its margins that helped drive up global temperatures. Laurentia lay across the equator, separated from Gondwana by the opening Iapetus Ocean. The Cambrian marked a profound change in life on Earth; prior to the Period, the majority of living organisms were small, unicellular and poorly preserved. Complex, multicellular organisms gradually became more common during the Ediacaran, but it was not until the Cambrian that fossil diversity seems to rapidly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wayback Machine
The Wayback Machine is a digital archive of the World Wide Web founded by Internet Archive, an American nonprofit organization based in San Francisco, California. Launched for public access in 2001, the service allows users to go "back in time" to see how websites looked in the past. Founders Brewster Kahle and Bruce Gilliat developed the Wayback Machine to provide "universal access to all knowledge" by preserving archived copies of defunct web pages. The Wayback Machine's earliest archives go back at least to 1995, and by the end of 2009, more than 38.2 billion webpages had been saved. As of November 2024, the Wayback Machine has archived more than 916 billion web pages and well over 100 petabytes of data. History The Internet Archive has been archiving cached web pages since at least 1995. One of the earliest known pages was archived on May 8, 1995. Internet Archive founders Brewster Kahle and Bruce Gilliat launched the Wayback Machine in San Francisco, California ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Qilwah
Qilwah (Arabic: قلوة) is a governorate in Al-Baha Province of Saudi Arabia. It is one of the administrative divisions of the province and includes several towns and villages. See also * Provinces of Saudi Arabia * List of governorates of Saudi Arabia * List of cities and towns in Saudi Arabia The following is a list of cities and towns in Saudi Arabia. List of Metro Cities There are 5 large cities or metropolitan area, metro cities in Saudi Arabia with the population over a million or more. Alphabetical list of cities and towns ... References Populated places in Al-Bahah Province Governorates of Saudi Arabia {{SaudiArabia-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
