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Serra De Moixeró
The Serra de Moixeró is a mountain range running across the north of Catalonia (Spain), part of the Pre-Pyrenees. Along with the adjacent Serra del Cadí, Pedraforca and parts of Tosa d'Alp and Puigllançada, it forms part of the Cadí-Moixeró Natural Park, established in 1983. The Serra de Moixeró is often confused as a part of the Serra del Cadí, despite the fact that these two ranges are separated by the Tancalaporta pass. The confusion is widespread enough that Cadí Tunnel, which connects Cerdanya with the rest of Catalonia beneath the Serra de Moixeró, was erroneously named for the adjacent range. Geography Since Moixeró is considered older than the Cadí range (it formed during the Variscan orogeny of the Paleozoic era), it is considered the start of the "axial" Pyrenees, beginning at the Pass of Pendís (1,760 m). From there, it continues to Tosa d'Alp and Puigllançada, to beyond the Pas of Toses. Along with the adjacent ranges, it divides the watersheds of the Ll ... [...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] |
Variscan Orogeny
The Variscan or Hercynian orogeny was a geologic mountain-building event caused by Late Paleozoic continental collision between Euramerica (Laurussia) and Gondwana to form the supercontinent of Pangaea. Nomenclature The name ''Variscan'', comes from the Medieval Latin name for the district '' Variscia'', the home of a Germanic tribe, the Varisci; Eduard Suess, professor of geology at the University of Vienna, coined the term in 1880. (Variscite, a rare green mineral first discovered in the Vogtland district of Saxony in Germany, which is in the Variscan belt, has the same etymology.) ''Hercynian'', on the other hand, derives from the Hercynian Forest. Both words were descriptive terms of strike directions observed by geologists in the field, ''variscan'' for southwest to northeast, ''hercynian'' for northwest to southeast. The ''variscan'' direction reflected the direction of ancient fold belts cropping out throughout Germany and adjacent countries and the meaning shifted from d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beech
Beech (''Fagus'') is a genus of deciduous trees in the family Fagaceae, native to temperate Europe, Asia, and North America. Recent classifications recognize 10 to 13 species in two distinct subgenera, ''Engleriana'' and ''Fagus''. The ''Engleriana'' subgenus is found only in East Asia, distinctive for its low branches, often made up of several major trunks with yellowish bark. The better known ''Fagus'' subgenus beeches are high-branching with tall, stout trunks and smooth silver-grey bark. The European beech (''Fagus sylvatica'') is the most commonly cultivated. Beeches are monoecious, bearing both male and female flowers on the same plant. The small flowers are unisexual, the female flowers borne in pairs, the male flowers wind-pollinating catkins. They are produced in spring shortly after the new leaves appear. The fruit of the beech tree, known as beechnuts or mast, is found in small burrs that drop from the tree in autumn. They are small, roughly triangular, and edible, w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Red Pine
''Pinus resinosa'', known as red pine (also Norway pine in Minnesota), is a pine native to North America. Description Red pine is a coniferous evergreen tree characterized by tall, straight growth. It usually ranges from in height and in trunk diameter, exceptionally reaching tall. The crown is conical, becoming a narrow rounded dome with age. The bark is thick and gray-brown at the base of the tree, but thin, flaky and bright orange-red in the upper crown; the tree's name derives from this distinctive character. Some red color may be seen in the fissures of the bark. The species is self pruning; there tend not to be dead branches on the trees, and older trees may have very long lengths of branchless trunk below the canopy. The leaves are needle-like, dark yellow-green, in fascicles of two, long, and brittle. The leaves snap cleanly when bent; this character, stated as diagnostic for red pine in some texts, is however shared by several other pine species. The cones are sym ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora
Flora is all the plant life present in a particular region or time, generally the naturally occurring (indigenous) native plants. Sometimes bacteria and fungi are also referred to as flora, as in the terms '' gut flora'' or '' skin flora''. Etymology The word "flora" comes from the Latin name of Flora, the goddess of plants, flowers, and fertility in Roman mythology. The technical term "flora" is then derived from a metonymy of this goddess at the end of the sixteenth century. It was first used in poetry to denote the natural vegetation of an area, but soon also assumed the meaning of a work cataloguing such vegetation. Moreover, "Flora" was used to refer to the flowers of an artificial garden in the seventeenth century. The distinction between vegetation (the general appearance of a community) and flora (the taxonomic composition of a community) was first made by Jules Thurmann (1849). Prior to this, the two terms were used indiscriminately.Thurmann, J. (1849). ''Essai de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schist
Schist ( ) is a medium-grained metamorphic rock showing pronounced schistosity. This means that the rock is composed of mineral grains easily seen with a low-power hand lens, oriented in such a way that the rock is easily split into thin flakes or plates. This texture (geology), texture reflects a high content of platy minerals, such as micas, talc, chlorite group, chlorite, or graphite. These are often interleaved with more granular minerals, such as feldspar or quartz. Schist typically forms during regional metamorphism accompanying the process of mountain building (orogeny) and usually reflects a medium Metamorphism#Metamorphic grades, grade of metamorphism. Schist can form from many different kinds of rocks, including sedimentary rocks such as mudstones and igneous rocks such as tuffs. Schist metamorphosed from mudstone is particularly common and is often very rich in mica (a ''mica schist''). Where the type of the original rock (the protolith) is discernible, the schist is us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhyolite
Rhyolite ( ) is the most silica-rich of volcanic rocks. It is generally glassy or fine-grained (aphanitic) in texture, but may be porphyritic, containing larger mineral crystals (phenocrysts) in an otherwise fine-grained groundmass. The mineral assemblage is predominantly quartz, sanidine, and plagioclase. It is the extrusive equivalent to granite. Rhyolitic magma is extremely viscous, due to its high silica content. This favors explosive eruptions over effusive eruptions, so this type of magma is more often erupted as pyroclastic rock than as lava flows. Rhyolitic ash-flow tuffs are among the most voluminous of continental igneous rock formations. Rhyolitic tuff has been extensively used for construction. Obsidian, which is rhyolitic volcanic glass, has been used for tools from prehistoric times to the present day because it can be shaped to an extremely sharp edge. Rhyolitic pumice finds use as an abrasive, in concrete, and as a soil amendment. Description Rhyolite i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Berguedà
Berguedà () is an inland comarca (county) in Catalonia, Spain, lying partly in the Pyrenees and Pre-Pyrenees, and partly in the Catalan Central Depression. Geography The northern half of Berguedà, known as Alt Berguedà (“Upper Berguedà”), consists of the upper Llobregat Valley and the mountainous areas surrounding it. Its northern border is a veritable mountain barrier: Berguedà is separated from Cerdanya by a chain of 2,000-meter peaks. These include the mountain ranges of Cadí, Moixeró, Puig d' Alp and Puigllançada. In this area the population is centered mainly in the Llobregat Valley and the valleys of the rivers Bagà, Bastareny and Saldes. To the east are the mountain ranges of Catllaràs and Rasos de Tubau, to the west the high ranges of Pedraforca, Verd, Ensija and Rasos de Peguera. The more populous Baix Berguedà ("Lower Berguedà") is the southern part of the ''comarca''. It lies along the foothills of the Pyrenees, transitioning into the plains o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Segre (river)
The Segre ( or ; french: Sègre) is a river tributary to the Ebro (''Ebre'' in Catalan) with a basin comprising territories across three states: France, Andorra and Spain. The river Segre, known to Romans and Greeks as Sicoris, and to the Arabs of Al-Andalus as Nahr az-Zaytūn (نهر الزيتون, river of Olives) has its sources on the north face of the Pic del Segre or ''Puigmal de Segre'' ("Segre's Peak") in the French department Pyrénées-Orientales (historically the ''comarca'' of Alta Cerdanya), in the Catalan Pyrenees. It follows a western direction all along the Cerdanya (''Cerdagne'') Valley, and crosses the town Saillagouse, the Spanish exclave Llívia and Bourg-Madame. It enters Spain at Puigcerdà and continues west until La Seu d'Urgell, where it meets the Valira River coming from Andorra. From this point it adopts a south-western course across the pre-Pyrenees (with several dams along its gorges) and the western plains of Catalonia. It passes through Balaguer, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Llobregat
The Llobregat () is the second longest river in Catalonia, Spain, after the Ter. It flows into the Mediterranean south of the city of Barcelona. Its name could have originated in an ancient Latin word meaning 'dark', 'sorrowful' or 'muddy', or from ''Rubricatus'', "red." Course The Llobregat originates at an elevation of in the Serra del Cadí, within the limits of Castellar de n'Hug municipality, Berguedà comarca. The total length of the river is over . At Martorell, the Roman Via Augusta crosses the river on the impressive Devil's bridge, which dates from the High Middle Ages in its current form. The C-16 highway is also known as the 'Llobregat Axis' ( ca, Eix del Llobregat) for its largest stretch follows the valley of the Llobregat. The river ends in the Mediterranean Sea forming the Llobregat Delta, in the municipality of El Prat de Llobregat, near Barcelona on the left bank. The delta provided a large extension of fertile land close to the city of Barcelona, but is no ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drainage Basin
A drainage basin is an area of land where all flowing surface water converges to a single point, such as a river mouth, or flows into another body of water, such as a lake or ocean. A basin is separated from adjacent basins by a perimeter, the '' drainage divide'', made up of a succession of elevated features, such as ridges and hills. A basin may consist of smaller basins that merge at river confluences, forming a hierarchical pattern. Other terms for a drainage basin are catchment area, catchment basin, drainage area, river basin, water basin, and impluvium. In North America, they are commonly called a watershed, though in other English-speaking places, "watershed" is used only in its original sense, that of a drainage divide. In a closed drainage basin, or endorheic basin, the water converges to a single point inside the basin, known as a sink, which may be a permanent lake, a dry lake, or a point where surface water is lost underground. Drainage basins are similar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
