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Ouled Naïl Range
The Ouled Naïl Range (, ) is a mountain range in Algeria, part of the Saharan Atlas of the greater Atlas Mountain System. The range is named after a confederation of nomadic and semi-nomadic tribes, all of which claim to hail from Arab ancestors of Banu Hilal origin. Geography The Ouled Naïl mountain range is formed by parallel ridges rising between the level 850 m high terrain of the Hodna region of the '' Hautes Plaines'' in the north and the 600 m of the southern plain of the ''Dayas''. It is located in the eastern zone of the Saharan Atlas, with the Amour Range in the western and the Zab Range at the eastern end. The range is formed by mountains created by folds of the early Tertiary which remained relatively undisturbed after formation but have been heavily eroded. Their altitude is relatively moderate, the highest point of the range, Djebel Lazrag (جبل الأزرق), not even reaching 1,500 m. However, towards the south the look of the highest ridges is quite s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Djebel Lazrag
: ''For mountains or other uses, see: Jabal (other), Jabal.'' Djebel (1937–1958) was a French Thoroughbred horse racing, racehorse, who won 15 of 22 races during 1939–1942 including the Prix d'Essai, 2000 Guineas and Prix de l'Arc de Triomphe. He was later a leading sire in France and is responsible for the survival of the Byerley Turk sire line into the 21st century. Breeding Djebel was a bay stallion owned and bred by renowned horseman Marcel Boussac. He was sired by Tourbillon (horse), Tourbillon, who had won the Prix du Jockey Club, French Derby and the Prix Lupin, and went on to become a notable sire (horse), sire. Djebel's dam, Loika, was a minor winner by Gay Crusader and out of Coeur a Coeur. Gay Crusader was the 1917 Triple Crown of Thoroughbred Racing, U.K. Triple Crown winner, and by the influential Bayardo (horse), Bayardo. Coeur a Coeur was by Teddy (horse), Teddy, whose grandsire was the 1899 English Triple Crown champion Flying Fox (horse), Flying Fox. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tertiary Period
The Tertiary ( ) is an obsolete Period (geology), geologic period spanning 66 million to 2.6 or 1.8 million years ago. The period began with the extinction of the non-bird, avian dinosaurs in the Cretaceous–Paleogene extinction event, at the start of the Cenozoic, Cenozoic Era, and extended to the beginning of the Quaternary glaciation at the end of the Pliocene, Pliocene Epoch. The Tertiary has not been recognised by the International Commission on Stratigraphy (ICS) since the late 1980s, with the timespan of the Tertiary now being split in to the earlier Paleogene and the more recent Neogene periods, though the Tertiary continues to be used in some scientific publications. Historical use of the term The term Tertiary was first used by Giovanni Arduino (geologist), Giovanni Arduino during the mid-18th century. He classified geologic time into primitive (or primary), secondary, and tertiary periods based on observations of geology in Northern Italy. Later a fourth period, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ouled Naïl
The Ouled Naïl (; ) are an Arab tribal confederation living in the Ouled Naïl Range, Algeria. They are found mainly in Bou Saâda, and Djelfa, but there is also a significant number of them in Ghardaïa. Origins The oral lore of the Ouled Naïl people claims ancient Arab descent from tribes that arrived in the area about a thousand years ago. They trace their origin back to Sidi Naïl, an Arab marabout and sharif (descendent of Muhammad) who settled in central Algeria in the 16th century. Some traditions trace their ancestry to the Banu Hilal of Najd, who came to the highlands through El Oued, Ghardaia. Traditional lifestyle The Ouled Naïl are seminomadic or nomadic people living in the highlands of the range of the Saharan Atlas to which they gave their name. The town of Djelfa has been traditionally an important market and trade centre for the Ouled Naïl, especially for their cattle. The town has cold and long winters with temperatures averaging 4 °C. In recen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neolithic Art
In the history of art, prehistoric art is all art produced in preliterate, prehistorical cultures beginning somewhere in very late geological history, and generally continuing until that culture either develops writing or other methods of record-keeping, or makes significant contact with another culture that has, and that makes some record of major historical events. At this point ancient art begins, for the older literate cultures. The end-date for what is covered by the term thus varies greatly between different parts of the world. The earliest human artifacts showing evidence of workmanship with an artistic purpose are the subject of some debate. It is clear that such workmanship existed 40,000 years ago in the Upper Paleolithic era, although it is quite possible that it began earlier. In September 2018, scientists reported the discovery of the earliest known drawing by ''Homo sapiens'', which is estimated to be 73,000 years old, much earlier than the 43,000 years old artif ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megalithic
A megalith is a large Rock (geology), stone that has been used to construct a prehistoric structure or monument, either alone or together with other stones. More than 35,000 megalithic structures have been identified across Europe, ranging geographically from Sweden in the north to the Mediterranean Sea in the south. The word was first used in 1849 by the British antiquarian Algernon Herbert in reference to Stonehenge and derives from the Ancient Greek words "wikt:μέγας, mega" for great and "wikt:λίθος, lithos" for stone. Most extant megaliths were erected between the Neolithic period (although earlier Mesolithic examples are known) through the Chalcolithic, Chalcolithic period and into the Bronze Age. Types and definitions While "megalith" is often used to describe a single piece of stone, it also can be used to denote one or more rocks hewn in definite shapes for special purposes. It has been used to describe structures built by people from many parts of the wo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marl
Marl is an earthy material rich in carbonate minerals, Clay minerals, clays, and silt. When Lithification, hardened into rock, this becomes marlstone. It is formed in marine or freshwater environments, often through the activities of algae. Marl makes up the lower part of the White cliffs of Dover, cliffs of Dover, and the Channel Tunnel follows these marl layers between France and the United Kingdom. Marl is also a common sediment in post-glacial lakes, such as the marl ponds of the northeastern United States. Marl has been used as a soil conditioner and neutralizing agent for acid soil and in the manufacture of cement. Description Marl or marlstone is a carbonate mineral, carbonate-rich mud or mudstone which contains variable amounts of Clay minerals, clays and silt. The term was originally loosely applied to a variety of materials, most of which occur as loose, earthy deposits consisting chiefly of an intimate mixture of clay and calcium carbonate, formed under freshwa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rock Salt
Halite ( ), commonly known as rock salt, is a type of salt, the mineral (natural) form of sodium chloride ( Na Cl). Halite forms isometric crystals. The mineral is typically colorless or white, but may also be light blue, dark blue, purple, pink, red, orange, yellow or gray depending on inclusion of other materials, impurities, and structural or isotopic abnormalities in the crystals. It commonly occurs with other evaporite deposit minerals such as several of the sulfates, halides, and borates. The name ''halite'' is derived from the Ancient Greek word for "salt", ἅλς (''háls''). Occurrence Halite dominantly occurs within sedimentary rocks where it has formed from the evaporation of seawater or salty lake water. Vast beds of sedimentary evaporite minerals, including halite, can result from the drying up of enclosed lakes and restricted seas. Such salt beds may be hundreds of meters thick and underlie broad areas. Halite occurs at the surface today in playas in reg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rocher De Sel
Rocher de Sel ("Salt Rock"), known in Arabic as Khanguet-el-Melah ("Parade of Salt"), is a large geological formation in the Ouled Naïl Range, near the town of Djelfa. Rocher de Sel is composed of a mixture of salt and clay Clay is a type of fine-grained natural soil material containing clay minerals (hydrous aluminium phyllosilicates, e.g. kaolinite, ). Most pure clay minerals are white or light-coloured, but natural clays show a variety of colours from impuriti ..., and is nearly in diameter and tall. Due to its composition, Rocher de Sel is distinctly whitish-gray, and entirely barren of plant life. Rocher de Sel was formed when the Earth's crust folded upwards, pushing a previously-buried layer of salt and clay upwards in a bulge. Later precipitation would erode the surface into its current scarred and furrowed state. It is unknown why the formation has not eroded completely, despite the susceptibility of its materials. It has been suggested that the clay repels the area ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Djelfa
Djelfa () is the capital city of Djelfa Province, Algeria and the site of ancient city and former bishopric Fallaba, which remains a Latin catholic titular see. It has a population of 520622 (2019 census). The city lies at the junction of the N1 and the N46 roads. History The area is notable for its abundance of Neolithic rock carvings dating from 7000 to 5000 BC. North of Djelfa town there is an imposing physical feature known as Rocher de Sel (English: Salt Rock) that resulted from the erosion of rock salts and marls by rain. To the west of the town Megalithic funerary structures are found. During the Roman Empire, a Roman town called Fallaba was built on the site of Djelfa.Fallaba at www.gcatholic.org That town lasted unto |
Date Palm
''Phoenix dactylifera'', commonly known as the date palm, is a flowering-plant species in the palm family Arecaceae, cultivated for its edible sweet #Fruits, fruit called dates. The species is widely cultivated across North Africa, northern Africa, the Middle East, the Horn of Africa, Australia, South Asia, and the desert regions of Southern California in the United States. It is Naturalisation (biology), naturalized in many Tropics, tropical and Subtropics, subtropical regions worldwide. ''P. dactylifera'' is the type species of genus ''Phoenix (plant), Phoenix'', which contains 12–19 species of wild date palms. Date palms reach up to 60–110 feet in height, growing singly or forming a Clumping (biology), clump with several stems from a single root system. Slow-growing, they can reach over 100years of age when maintained properly. Date fruits (dates) are oval-cylindrical, long, and about in diameter, with colour ranging from dark brown to bright red or yellow, depen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
