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Randecker Maar
The Randecker Maar is a maar – a volcanic crater about wide. It is in the Swabian Jura mountains, in the municipality Bissingen an der Teck near Stuttgart and was formed around 17 million years ago. A volcanic crater lake, lake formed in the crater and its bed is now a layer of the early Miocene in which many fossils have been found. Nowadays, the crater is drained by the Zipfelbach (Lindach), Zipfelbach brook and so there is no longer a lake. The northeastern wall of the crater has eroded and opens to lower ground. This forms a natural pass for the seasonal migration of birds and insects as they fly up and over the alps. This makes it a good point for observing these creatures and so an observatory was established there in 1969 by ornithologist :de:Wulf Gatter, Wulf Gatter – ''Randecker Maar Observatory for Bird and Insect Migration, Forschungsstation Randecker Maar e.V.''. The maar and gorge of the Zipfelbach were designated as a nature reserve by local ordinances in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Swabian Jura
The Swabian Jura (german: Schwäbische Alb , more rarely ), sometimes also named Swabian Alps in English, is a mountain range in Baden-Württemberg, Germany, extending from southwest to northeast and in width. It is named after the region of Swabia. The Swabian Jura occupies the region bounded by the Danube in the southeast and the upper Neckar in the northwest. In the southwest it rises to the higher mountains of the Black Forest. The highest mountain of the region is the Lemberg (). The area's profile resembles a high plateau, which slowly falls away to the southeast. The northwestern edge is a steep escarpment (called the Albtrauf or Albanstieg, rising up , covered with forests), while the top is flat or gently rolling. In economic and cultural terms, the Swabian Jura includes regions just around the mountain range. It is a popular recreation area. Geology The geology of the Swabian Jura is mostly limestone, which formed the seabed during the Jurassic period. The sea r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Randecker Maar Observatory For Bird And Insect Migration
The Randecker Maar Research Station (German: ''Forschungsstation Randecker Maar e.V.'') is a bird observatory which was founded in 1969 by the ornithologist . It studies birds, insects and other migratory creatures which tend to concentrate in the pass through the crater of the Randecker Maar as they fly over the Swabian Jura. The research station is located at an elevation of 773 meters above sea level on the northern precipice of the Swabian Jura of Baden-Württemberg in southern Germany. Insects and birds cross this mountain range on their southward autumn migration in great numbers. At the site of an extinct volcano, the Randecker Maar, migration of insects and birds is concentrated both horizontally and vertically. This funnel effect is due to the erosion that has cut open the volcanic crater on its northern edge. Both insects and birds prefer this gap to cross the elevated ground. History The Randecker Maar has been a site for animal migrations since at least the Neolit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcanoes Of Germany
A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. On Earth, volcanoes are most often found where tectonic plates are diverging or converging, and most are found underwater. For example, a mid-ocean ridge, such as the Mid-Atlantic Ridge, has volcanoes caused by divergent tectonic plates whereas the Pacific Ring of Fire has volcanoes caused by convergent tectonic plates. Volcanoes can also form where there is stretching and thinning of the crust's plates, such as in the East African Rift and the Wells Gray-Clearwater volcanic field and Rio Grande rift in North America. Volcanism away from plate boundaries has been postulated to arise from upwelling diapirs from the core–mantle boundary, deep in the Earth. This results in hotspot volcanism, of which the Hawaiian hotspot is an example. Volcanoes are usually not created where two tectonic plates slide pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maars
A maar is a broad, low-relief volcanic crater caused by a phreatomagmatic eruption (an explosion which occurs when groundwater comes into contact with hot lava or magma). A maar characteristically fills with water to form a relatively shallow crater lake which may also be called a maar. The name comes from a Moselle Franconian dialect word used for the circular lakes of the Daun area of Germany. Notes: * According to German Wikipedia's ''"Maar"'' article, in 1544 in his book ''Cosmographia'', Sebastian Münster (1488–1552) first applied the word "maar" (as ''Marh'') to the Ulmener Maar and the Laacher See. See: Sebastian Münster, ''Cosmographia'' (Basel, Switzerland: Heinrich Petri, 1544)p. 341. From p. 341: ''"Item zwen namhafftiger seen seind in der Eyfel / einer bey de schloß Ulmen / und ein ander bey dem Closter züm Laich / die seind sere tieff / habe kein ynflüß aber vil außflüß / die nennet man Marh unnd seind fischreich."'' (Also two noteworthy lakes are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limburg (Weilheim An Der Teck)
Limburg (Weilheim an der Teck) is a mountain of Baden-Württemberg, Germany. Striking is the breakdown of vegetation: the summit is covered with lean lawn and some solitary Tilia. Below this is a zone of scrub forest on the southern slope with vineyards, and on the lower slopes of extensive orchards. Geology The Limburg is a mountain of volcanic origin, more precisely a formerly active volcanic vent of the Swabian Jura. However, it does not correspond, despite its striking cone shape the Ashes volcanoes on the type of Mount Etna, Etna or Vesuvius. Before about 17 million years ago there came here to massive gas and dust explosions when percolating water met in the columns of the Jura on a magma bubble that had formed in the depths. The up broken rocks fell back into the crater and solidified over time to basaltic. Here no molten lava came to the surface. She remained rather stuck in the volcanic vent and froze there to Basalt. In the following year, millions the Jurassic lay ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fauna And Flora
In biology, an organism () is any living system that functions as an individual entity. All organisms are composed of cells (cell theory). Organisms are classified by taxonomy into groups such as multicellular animals, plants, and fungi; or unicellular microorganisms such as protists, bacteria, and archaea. All types of organisms are capable of reproduction, growth and development, maintenance, and some degree of response to stimuli. Beetles, squids, tetrapods, mushrooms, and vascular plants are examples of multicellular organisms that differentiate specialized tissues and organs during development. A unicellular organism may be either a prokaryote or a eukaryote. Prokaryotes are represented by two separate domains – bacteria and archaea. Eukaryotic organisms are characterized by the presence of a membrane-bound cell nucleus and contain additional membrane-bound compartments called organelles (such as mitochondria in animals and plants and plastids in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nature Reserve
A nature reserve (also known as a wildlife refuge, wildlife sanctuary, biosphere reserve or bioreserve, natural or nature preserve, or nature conservation area) is a protected area of importance for flora, fauna, or features of geological or other special interest, which is reserved and managed for purposes of conservation and to provide special opportunities for study or research. They may be designated by government institutions in some countries, or by private landowners, such as charities and research institutions. Nature reserves fall into different IUCN categories depending on the level of protection afforded by local laws. Normally it is more strictly protected than a nature park. Various jurisdictions may use other terminology, such as ecological protection area or private protected area in legislation and in official titles of the reserves. History Cultural practices that roughly equate to the establishment and maintenance of reserved areas for animals date bac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gorge
A canyon (from ; archaic British English spelling: ''cañon''), or gorge, is a deep cleft between escarpments or cliffs resulting from weathering and the erosion, erosive activity of a river over geologic time scales. Rivers have a natural tendency to cut through underlying surfaces, eventually wearing away rock layers as sediments are removed downstream. A river bed will gradually reach a baseline elevation, which is the same elevation as the body of water into which the river drains. The processes of weathering and erosion will form canyons when the river's River source, headwaters and estuary are at significantly different elevations, particularly through regions where softer rock layers are intermingled with harder layers more resistant to weathering. A canyon may also refer to a rift between two mountain peaks, such as those in ranges including the Rocky Mountains, the Alps, the Himalayas or the Andes. Usually, a river or stream carves out such splits between mountains. Examp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alps
The Alps () ; german: Alpen ; it, Alpi ; rm, Alps ; sl, Alpe . are the highest and most extensive mountain range system that lies entirely in Europe, stretching approximately across seven Alpine countries (from west to east): France, Switzerland, Italy, Liechtenstein, Austria, Germany, and Slovenia. The Alpine arch generally extends from Nice on the western Mediterranean to Trieste on the Adriatic and Vienna at the beginning of the Pannonian Basin. The mountains were formed over tens of millions of years as the African and Eurasian tectonic plates collided. Extreme shortening caused by the event resulted in marine sedimentary rocks rising by thrusting and folding into high mountain peaks such as Mont Blanc and the Matterhorn. Mont Blanc spans the French–Italian border, and at is the highest mountain in the Alps. The Alpine region area contains 128 peaks higher than . The altitude and size of the range affect the climate in Europe; in the mountains, precipitation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
