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Plain Of Vic
The Plain of Vic (Catalan ''Plana de Vic'') is a 30 km long depression located at the eastern end of the Catalan Central Depression in the Osona comarca. It is named after the town of Vic, an important and ancient urban center in this natural region that lies in the midst of the plain. Other significant towns in the plain are Manlleu and Tona. This natural depression carved by river Ter and its tributaries is longer than it is wide and stretches in a N / S direction. It is completely surrounded by mountains: The Sub-Pyrenees, with Bellmunt mountain towering in the north, the Lluçanès ( Pre-Pyrenees) and Moianès high plateau in the West, the Montseny in the southeast and the Guilleries, located at the apex of the Catalan Transversal Range and the Pre-Coastal Range, in the east. Characteristics The Plain of Vic was the bed of an ancient sea. It is mainly formed by sedimentary rocks, like carbonatic lutite, from the eocene. The most remarkable characteristic of the la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Natural Region
A natural region (landscape unit) is a basic geographic unit. Usually, it is a region which is distinguished by its common natural features of geography, geology, and climate. From the ecology, ecological point of view, the naturally occurring flora and fauna of the region are likely to be influenced by its geographical and geological factors, such as soil and water resources, water availability, in a significant manner. Thus most natural regions are homogeneous ecosystems. Human impact can be an important factor in the shaping and destiny of a particular natural region. Main terms The concept "natural region" is a large basic geographical unit, like the vast boreal forest region. The term may also be used generically, like in alpine tundra, or specifically to refer to a particular place. The term is particularly useful where there is no corresponding or coterminous official region. The Fens of eastern England, the Thai highlands, and the Pays de Bray in Normandy, are examples o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pre-Pyrenees
The Pre-Pyrenees are the foothills of the Pyrenees. Description As a mountainous system the Pre-Pyrenees are part of the Pyrenees. They run parallel to the main mountain range in a west to east direction. On the French side the Pyrenees's slopes descend rather abruptly, thus on the northern side, the Pre-Pyrenees are confined to the Corbières Massif, towards the eastern end of the mountain system. The Massif de Plantaurel further west deserves mention as well, although not as clearly a foothill. On the Iberian side, however, the picture is very different: a large and complex system of foothill ranges stretches from Navarre, across northern Aragon, reaching the Mediterranean coast on the Catalan end of the Pyrenees. At the eastern end on the southern side lies a distinct area known as the Sub-Pyrenees. Main ranges Although the highest peaks in the Pre-Pyrenees are not as high as those in the Pyrenees proper, some of the ranges are quite massive, with summits reaching up to . ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Natural Regions
A natural region (landscape unit) is a basic geographic unit. Usually, it is a region which is distinguished by its common natural features of geography, geology, and climate. From the ecological point of view, the naturally occurring flora and fauna of the region are likely to be influenced by its geographical and geological factors, such as soil and water availability, in a significant manner. Thus most natural regions are homogeneous ecosystems. Human impact can be an important factor in the shaping and destiny of a particular natural region. Main terms The concept "natural region" is a large basic geographical unit, like the vast boreal forest region. The term may also be used generically, like in alpine tundra, or specifically to refer to a particular place. The term is particularly useful where there is no corresponding or coterminous official region. The Fens of eastern England, the Thai highlands, and the Pays de Bray in Normandy, are examples of this. Others might incl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Landforms Of Catalonia
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 the fou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quercus Pubescens
''Quercus pubescens'', the downy oak or pubescent oak, is a species of white oak (genus ''Quercus'' sect. ''Quercus'') native to southern Europe and southwest Asia, from northern Spain (Pyrenees) east to the Crimea and the Caucasus. It is also found in France and parts of central Europe. Description ''Quercus pubescens'' is a medium-sized deciduous tree growing up to . Forest-grown trees grow tall, while open-growing trees develop a very broad and irregular crown. They are long-lived, to several hundred years, and eventually grow into very stout trees with trunks up to in diameter. Open-grown trees frequently develop several trunks. The Bark (botany), bark is very rough, light gray and divided into small flakes. Large trees develop very thick whitish bark cracked into deep furrows, similar to the pedunculate oak but lighter in colour. The twigs are light purple or whitish, with tomentum. The buds are small () and blunt, light brown. The leaves are leathery usually long (rar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inversion (meteorology)
In meteorology, an inversion is a deviation from the normal change of an atmosphere, atmospheric property with altitude. It almost always refers to an inversion of the air temperature lapse rate, in which case it is called a temperature inversion. Normally, air temperature decreases with an increase in altitude, but during an inversion warmer air is held above cooler air. An inversion traps air pollution, such as smog, close to the ground. An inversion can also suppress Atmospheric convection, convection by acting as a "cap". If this cap is broken for any of several reasons, convection of any moisture present can then erupt into violent thunderstorms. Temperature inversion can notoriously result in freezing rain in cold climates. Normal atmospheric conditions Usually, within the lower atmosphere (the troposphere) the air near the surface of the Earth is warmer than the air above it, largely because the atmosphere is heated from below as solar radiation warms the Earth's su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fossil
A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved in amber, hair, petrified wood and DNA remnants. The totality of fossils is known as the ''fossil record''. Paleontology is the study of fossils: their age, method of formation, and evolutionary significance. Specimens are usually considered to be fossils if they are over 10,000 years old. The oldest fossils are around 3.48 billion years old to 4.1 billion years old. Early edition, published online before print. The observation in the 19th century that certain fossils were associated with certain rock strata led to the recognition of a geological timescale and the relative ages of different fossils. The development of radiometric dating techniques in the early 20th century allowed scientists to quantitatively measure the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eocene
The Eocene ( ) Epoch is a geological epoch (geology), epoch that lasted from about 56 to 33.9 million years ago (mya). It is the second epoch of the Paleogene Period (geology), Period in the modern Cenozoic Era (geology), Era. The name ''Eocene'' comes from the Ancient Greek (''ēṓs'', "dawn") and (''kainós'', "new") and refers to the "dawn" of modern ('new') fauna that appeared during the epoch. The Eocene spans the time from the end of the Paleocene Epoch to the beginning of the Oligocene Epoch. The start of the Eocene is marked by a brief period in which the concentration of the carbon isotope Carbon-13, 13C in the atmosphere was exceptionally low in comparison with the more common isotope Carbon-12, 12C. The end is set at a major extinction event called the ''Grande Coupure'' (the "Great Break" in continuity) or the Eocene–Oligocene extinction event, which may be related to the impact of one or more large bolides in Popigai impact structure, Siberia and in what is now ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lutite
Lutite is old terminology, which is not widely used, by Earth scientists in field descriptions for fine-grained, Sedimentary rock, sedimentary rocks, which are composed of silt-size sediment, clay-size sediment, or a mixture of both. When mixed with water lutites often disintegrate into mud. Because this is a field term, there is a lack of any precise definition for it based upon specific grain-size characteristics. Lutites include a variety of fine-grained sedimentary rocks, including calcisiltite, calcilutite, claystone, mudstone, shale, and siltstone. It is equivalent to the term mudstone and the Greek-derived term pelite.Potter, P.E., J.B. Maynard, and P.J. Depetris (2005) Muds and Mudstones. New York, New York, Springer. 279 pp. Neuendorf, K.K.E., J.P. Mehl, Jr., and J.A. Jackson, J.A., eds. (2005) ''Glossary of Geology'' (5th ed.). Alexandria, Virginia, American Geological Institute. 779 pp. Lutite was first used in 1904 by Grabau,Grabau, A.W. (1904) ''On the classification ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sedimentary Rock
Sedimentary rocks are types of rock that are formed by the accumulation or deposition of mineral or organic particles at Earth's surface, followed by cementation. Sedimentation is the collective name for processes that cause these particles to settle in place. The particles that form a sedimentary rock are called sediment, and may be composed of geological detritus (minerals) or biological detritus (organic matter). The geological detritus originated from weathering and erosion of existing rocks, or from the solidification of molten lava blobs erupted by volcanoes. The geological detritus is transported to the place of deposition by water, wind, ice or mass movement, which are called agents of denudation. Biological detritus was formed by bodies and parts (mainly shells) of dead aquatic organisms, as well as their fecal mass, suspended in water and slowly piling up on the floor of water bodies (marine snow). Sedimentation may also occur as dissolved minerals precipitate from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Catalan Pre-Coastal Range
The Catalan Pre-Coastal Range ( ca, Serralada Prelitoral Catalana) is a system of mountain ranges running parallel to the Mediterranean Sea coast in Catalonia. It is part of the Catalan Mediterranean System. Its main axis runs between the Catalan Transversal Range and the Serra de l'Espina, which connects with the Ports de Tortosa-Beseit, part of the Iberian System. The highest point is 1.706,7 m at the Montseny Massif. Mountain ranges From North to South: * Les Guilleries * Montseny Massif * Sant Llorenç de Munt *Montserrat * Serra de Queralt, Bellprat * Picorandan * Serra de Prades * Montsant *Serra de Llaberia * Tivissa-Vandellòs Mountains. Towards the southern end of the Catalan Pre-Coastal Range there are certain coastal mountain ranges like los Dedalts, Moles del Taix and Serra de la Mar which —lacking a traditional geographical name as a group— have been recently named as the 'Tivissa-Vandellòs Mountains' ''(Muntanyes de Tivissa-Vandellòs)''. These are include ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Catalan Transversal Range
The Catalan Transversal Range (''Serralada Transversal'') is a system of minor mountain ranges at the eastern end of the Pre-Pyrenees, between the Osona and Garrotxa comarques. The existence of the Catalan Transversal Range has made communications in the northern areas of Catalonia difficult in the past, especially between Northeastern Catalonia ( Catalan Coastal Depression, with cities like Girona, Figueres and La Jonquera) and Western Catalonia ( Catalan Mediterranean System; Lleida, Cervera and further west to Aragón), a problem that has been partly solved with the development of the Eix Transversal. Description The Catalan Transversal Range is made up of a series of mountains running in a NW / SE axis between the Pyrenees, the Sub-Pyrenees, the Catalan Pre-Coastal Range and the northern end of the Catalan Coastal Depression. The highest point is at Puigsacalm, 1.515 m. Its most characteristic feature is a small region of volcanic origin near Olot, Garrotxa. There are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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