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Horst (geology)
In physical geography and geology, a horst is a raised fault block bounded by Fault (geology), normal faults. Horsts are typically found together with grabens. While a horst is lifted or remains stationary, the grabens on either side Subsidence, subside. This is often caused by Extensional tectonics, extensional forces pulling apart the crust. Horsts may represent features such as plateaus, mountains, or ridges on either side of a valley. Horsts can range in size from small fault blocks up to large regions of stable continent that have not been folded or warped by tectonic forces. The word ''Horst'' in German language, German means "mass" or "heap" and was first used in the geological sense in 1883 by Eduard Suess in ''The Face of the Earth.''Originally published in 1883 in German as "Das Antlitz der Erde", translated and published in English in 1904 Geomorphology Horsts may have either symmetrical or asymmetrical cross-sections. If the normal faults to either side have similar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zelten Oil Field
The Zelten oil field (now known as the Nasser field) is located at the foot of the Zelten Mountains, about south of Brega in Concession 6. Zelten holds the title as the largest oil field in the Gulf of Sidra. The 229 wells in Zelten use a gas lifting system. The Zelten oil field is not associated with the town Zelten, which is located in the North-West of Libya. Background Discovered in 1956, Zelten was Libya's first major oil well, producing about . In 1959, its reserves were estimated at of 38° API oil, lying at 5,500-7,600 feet. Esso Standard began production of Zelten in 1961. The Zelten gas-lift system was installed during the period from 1969 to 1971 and represented one of the first uses of gas lift on a fieldwide basis to produce the high volume wells typical of Middle East Oil fields. In 1979, approximately of total liquid was being produced by gas lift. By 2006, the accumulated production of the Zelten field reached 2,426 mmb of oil and of associated gas. Sirte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Struma (river)
The Struma or Strymonas (, ; , ) is a river in Bulgaria and Greece. Its ancient name was Strymon (, ). Its drainage area is , of which in Bulgaria, in Greece and the remaining in North Macedonia and Serbia. It takes its source from the Vitosha Mountain in Bulgaria, runs first westward, then southward, forming a number of gorges, enters Greece near the village of Promachonas in eastern Macedonia. In Greece it is the main waterway feeding and exiting from Lake Kerkini, a significant centre for migratory wildfowl. Also in Greece, the river entirely flows in the Serres regional unit into the Strymonian Gulf in Aegean Sea, near Amphipolis. The river's length is (of which in Bulgaria, making it the country's fifth-longest and one of the longest rivers that run solely in the interior of the Balkans. Parts of the river valley belong to a Bulgarian coal-producing area, more significant in the past than nowadays; the southern part of the Bulgarian section is an important wine r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anticline
In structural geology, an anticline is a type of Fold (geology), fold that is an arch-like shape and has its oldest Bed (geology), beds at its core, whereas a syncline is the inverse of an anticline. A typical anticline is convex curve, convex up in which the hinge or crest is the location where the curvature is greatest, and the limbs are the sides of the fold that Strike and dip, dip away from the hinge. Anticlines can be recognized and differentiated from antiforms by a sequence of rock layers that become progressively older toward the center of the fold. Therefore, if age relationships between various Stratum, rock strata are unknown, the term antiform should be used. The progressing age of the rock strata towards the core and uplifted center, are the trademark indications for evidence of anticlines on a geological map. These formations occur because anticlinal ridges typically develop above thrust faults during crustal deformations. The uplifted core of the fold cau ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pirin
The Pirin Mountains ( ) are a mountain range in southwestern Bulgaria, with the highest peak, Vihren, at an altitude of . The range extends about from the north-west to the south-east and is about wide, spanning a territory of . To the north, Pirin is separated from Bulgaria's highest mountain range, the Rila Mountain, by the Predel saddle, while to the south it reaches the Slavyanka Mountain. To the west is located the valley of the river Struma and to the east the valley of the river Mesta separates it from the Rhodope Mountains. Pirin is dotted with more than a hundred glacial lakes and is also the home of Europe's southernmost glaciers, Snezhnika and Banski Suhodol. The northern part of the range, which is also the highest one, is protected by the Pirin National Park, declared a UNESCO World Heritage Site in 1983. Pirin is noted for its rich flora and fauna, as well as for the presence of a number of relict species. Much of the area is forested, with some of the be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Belasitsa
Belasica ( Macedonian and Bulgarian: , also translit. ''Belasitsa'' or ''Belasitza'', Ottoman Turkish: بلش Turkish: ''Beleş''), Belles (, ''Bélles'') or Kerkini (, ''Kerkíni'';), is a mountain range in the region of Macedonia in Southeastern Europe, shared by northeastern Greece (about 45%), southeastern North Macedonia (35%) and southwestern Bulgaria (20%). Geography The mountain range is fault-block mountain about long and wide and is situated just northeast of Dojran Lake. The highest point is Radomir (Kalabaka) at 2,031 m, with elevation otherwise ranging between 300 and 1900 m above sea level. The borders of all three countries meet at Tumba Peak. The climate in the area shows strong Mediterranean influence. The area of Belasica became a euroregion in 2003. Two football teams are named after the mountain range, PFC Belasitsa from the nearby Bulgarian town of Petrich and FK Belasica from Strumica in North Macedonia. History Since ancient times Greeks refe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Massif
A massif () is a principal mountain mass, such as a compact portion of a mountain range, containing one or more summits (e.g. France's Massif Central). In mountaineering literature, ''massif'' is frequently used to denote the main mass of an individual mountain. As a purely scientific term in geology, however, a "massif" is separately and more specifically defined as a section of a planet's crust (geology), crust that is demarcated by geologic fault, faults or lithospheric flexure, flexures. In the plate tectonics, movement of the crust, a massif tends to retain its internal structure while being displaced as a whole. A massif is a smaller structural unit than a tectonic plate and is considered the fourth-largest driving force in geomorphology. The word "massif" originates from French (in which the word also means "massive"), where it is used to refer to a large mountain mass or compact group of connected mountains forming an independent portion of a range. The Cydonia (regi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhodope Mountains
The Rhodopes (; , ; , ''Rodopi''; ) are a mountain range in Southeastern Europe, and the largest by area in Bulgaria, with over 83% of its area in the southern part of the country and the remainder in Greece. Golyam Perelik is its highest peak at . The mountain range gives its name to the terrestrial ecoregion Rodope montane mixed forests that belongs in the temperate broadleaf and mixed forests biome and the Palearctic realm. The region is particularly notable for its karst areas with their deep river gorges, large caves and specific sculptured forms, such as the Trigrad Gorge. A significant part of Bulgaria's hydropower resources are located in the western areas of the range. There are a number of hydro-cascades and dams used for electricity production, irrigation, and as tourist destinations. Name and mythology The name of the Rhodope Mountains is of Thracian origin. Rhod-ope (Род-oпа) is interpreted as the first name of a river, meaning "rusty/reddish river", wher ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rila
Rila (, ) is the highest mountain range of Bulgaria, the Balkans, Balkan Peninsula, and Southeast Europe. It is situated in southwestern Bulgaria and forms part of the Rila–Rhodope Mountains, Rhodope Massif. The highest summit is Musala at an elevation of 2,925 m which makes Rila the sixth highest mountain range in Europe after the Caucasus, the Alps, Sierra Nevada (Spain), Sierra Nevada, the Pyrenees and Mount Etna, and the highest one between the Alps and the Caucasus. It spans a territory of 2,629 km2 with an average elevation of 1487 m. The mountain is believed to have been named after the Rilska River, river of the same name, which comes from the Old Bulgarian language, Old Bulgarian verb "рыти" meaning "to grub". Rila has abundant water resources. Some of the Balkans' longest and deepest rivers originate from Rila, including the Maritsa, Iskar (river), Iskar and Nestos (river), Mesta rivers. Bulgaria's main water divide separating the Black Sea and the A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dole, Jura
Dole (, sometimes pronounced ) is a commune in the eastern French department of Jura, of which it is a subprefecture (''sous-préfecture''). History Dole was the capital of Franche-Comté until Louis XIV conquered the region; he shifted the ''parlement'' from Dole to Besançon. The university, founded by Duke Philippe le Bon of Burgundy in 1422, was also transferred to Besançon at that time. In January 1573, Gilles Garnier was put to death after being found guilty of lycanthropy and witchcraft. He had confessed to murdering and cannibalizing at least four children. The 1995 film '' Happiness Is in the Field'' was set in Dole and '' The Widow Couderc'' was also partially filmed there. Geography Dole is located on the river Doubs. The commune has a land area of . Demographics It is the most populous commune in Jura, although the préfecture is Lons-le-Saunier. Transport Dole-Ville station has rail connections to Dijon, Paris, Lausanne and Besançon. Dole – J ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jura Mountains
The Jura Mountains ( ) are a sub-alpine mountain range a short distance north of the Western Alps and mainly demarcate a long part of the French–Swiss border. While the Jura range proper (" folded Jura", ) is located in France and Switzerland, the range continues northeastwards through northern Switzerland and Germany as the Table Jura ("not folded Jura", ), which is crossed by the High Rhine. Name The mountain range gives its name to the French department of Jura, the Swiss canton of Jura, the Jurassic period of the geologic timescale, and the Montes Jura of the Moon. It is first attested as ''mons Iura'' in book one of Julius Caesar's '' Commentarii de Bello Gallico''. Strabo uses a Greek masculine form ("through the Jura mountains", ) in his ''Geographica'' (4.6.11). Based on suggestions by Ferdinand de Saussure, early celticists such as Georges Dottin tried to establish an etymon "iura-, iuri" as a Celtic word for mountains, with similar putative etymologies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Table Mountain
Table Mountain (; ) is a flat-topped mountain forming a prominent landmark overlooking the city of Cape Town in South Africa. It is a significant tourist attraction, with many visitors using the Table Mountain Aerial Cableway, cableway or hiking to the top. The mountain has 8,200 plant species, of which around 80% are fynbos (Afrikaans for 'fine bush'). Table Mountain National Park is the most visited national park in South Africa, attracting 4.2 million people every year for various activities. It forms part of the lands formerly ranged by Khoe-Kwadi, Khoe-speaking clans, such as the (the "High Clan"). Table Mountain is home to a large array of mostly Endemism, endemic fauna and flora. Its top elevates about 1,000 m above the surrounding city, making the popular Hiking, hike upwards on a large variety of different, often steep and Rock (geology), rocky pathways a serious Mountaineering, mountain tour which requires Physical fitness, fitness, preparation and hiking equipment. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
