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Bristen
The Bristen (3,073 m) is a mountain in the Glarus Alps, overlooking the valley of the Reuss and located to the south of Amsteg in the canton of Uri, Switzerland. The mountain is located about four kilometres north of Piz Giuv and the border with Graubünden. The Bristen is considered one of the main landmarks of the Canton of Uri. Geographic setting and description The Bristen is located about three kilometers to the south of the village also called Bristen in the Maderanertal and about four kilometers north of Piz Giuv, with the Portlilücke (2'506 m) in between. An arête on the north side of the mountain is divided after 200 meters into the northern arête and the northeastern arête. Located below the northern arête on 2'095 m is the Bristensee - two hectare wide and 6,5 meters deep. On the western side of the mountain a steep arête leads down to the Fellital, the southern side is marked by another arête leading to the Zwächten (2'853 m), which goes further to the Port ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bristensee
__NOTOC__ Bristensee is a lake in the Canton of Uri, Switzerland. It is located below the mountain Bristen The Bristen (3,073 m) is a mountain in the Glarus Alps, overlooking the valley of the Reuss and located to the south of Amsteg in the canton of Uri, Switzerland. The mountain is located about four kilometres north of Piz Giuv and the border with ... and above the village of Bristen. There is a lodge for tourists and campers located directly opposite the lake. References Lakes of Switzerland Lakes of the canton of Uri {{Uri-lake-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amsteg
Silenen is a municipality in the canton of Uri in Switzerland. Geography Silenen municipality comprises the villages of Silenen (divided into three parts, Dörfli, Russ, Rusli), Amsteg, and Acherli, besides numerous smaller hamlets or dispersed settlements, including Schützen, Buechholz, Öfibach, Dägerlohn, Frentschenberg, Ried (Vorderried, Hinterried), Maderanerthal valley (St. Anton = Vorderbristen, Bristen = Hinterbristen, Cholplatz, Hälteli, Steinmatte, Schattigmatt etc.), Hofstetten, Silblen, and the Golzeren plateau (Egg, Hüseren, Seewen, etc.) Silenen has an area, , of . Of this area, 12.8% is used for agricultural purposes (mostly alpine pastures), while 18.3% is forested. Of the rest of the land, 0.7% is settled (buildings or roads) and the remainder (68.1%) is non-productive (mostly mountainous). Arnisee can be reached by gondola lift from Amsteg. The Zwing Uri Castle, overlooking Amsteg has some importance in Swiss historiography as the first fortress d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maderanertal
The Maderanertal is an Alpine valley of the canton of Uri in Central Switzerland. It is drained by the Chärstelenbach, a stream that is a right tributary of the Reuss at Amsteg. The highest mountain in the Maderanertal is the Oberalpstock with a height of 3,328 metres above sea level. Other important summits are the Schärhorn, the Clariden, the Düssi, the Gross Windgällen, the Gross Ruchen, Piz Giuv and the Bristen. The Maderanertal include two large lateral valleys: the Etzlital and the Brunnital, drained by the Etzlibach and the Brunnibach respectively (both left tributaries). The upper valley is heavily glaciated, the largest glacier being the Hüfi Glacier. The Maderanertal belongs to the municipality of Silenen. The main locality is Bristen, at an elevation of 770 metres. The locality of Golzern, located near the Golzernsee at 1,400 metres, is a popular destination in the valley. It can be reached by a cable car. References *Swisstopo Swisstopo is the official nam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glarus Alps
The Glarus Alps (german: Glarner Alpen) are a mountain range in central Switzerland. They are bordered by the Uri Alps and the Schwyz Alps to the west, the Lepontine Alps to the south, the Appenzell Alps to the northeast. The eastern part of the Glarus Alps contains a major thrust fault that was declared a geologic UNESCO World Heritage Site (the Swiss Tectonic Arena Sardona). The Glarus Alps extend well beyond the canton of Glarus, including parts of the cantons of Uri, Graubünden, and St Gallen. Conversely, not all the mountains in the canton of Glarus are part of the Glarus Alps, with those to the north of the Urner Boden and to the west of the valley of the river Linth considered to be part of the Schwyz Alps. Geography The main chain of the Glarus Alps can be divided into six minor groups, separated from each other by passes, the lowest of which exceeds 7,500 ft. The westernmost of these is the Crispalt, a rugged range including many peaks of nearly equal heigh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mountains Of The Alps
This page tabulates only the most prominent mountains of the Alps, selected for having a topographic prominence of ''at least'' , and all of them exceeding in height. Although the list contains 537 summits, some significant alpine mountains are necessarily excluded for failing to meet the stringent prominence criterion. The list of these most prominent mountains is continued down to 2500 m elevation at List of prominent mountains of the Alps (2500–2999 m) and down to 2000 m elevation on List of prominent mountains of the Alps (2000–2499 m). All such mountains are located in either France, Italy, Switzerland, Liechtenstein, Austria, Germany or Slovenia, even in some lower regions. Together, these three lists include all 44 ultra-prominent peaks of the Alps, with 19 ultras over 3000m on this page. For a definitive list of all 82 the highest peaks of the Alps, as identified by the International Climbing and Mountaineering Federation (UIAA), and often referred to as the 'Alpi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Mountains Of The Alps Above 3000 M
This page tabulates only the most prominent mountains of the Alps, selected for having a topographic prominence of ''at least'' , and all of them exceeding in height. Although the list contains 537 summits, some significant alpine mountains are necessarily excluded for failing to meet the stringent prominence criterion. The list of these most prominent mountains is continued down to 2500 m elevation at List of prominent mountains of the Alps (2500–2999 m) and down to 2000 m elevation on List of prominent mountains of the Alps (2000–2499 m). All such mountains are located in either France, Italy, Switzerland, Liechtenstein, Austria, Germany or Slovenia, even in some lower regions. Together, these three lists include all 44 ultra-prominent peaks of the Alps, with 19 ultras over 3000m on this page. For a definitive list of all 82 the highest peaks of the Alps, as identified by the International Climbing and Mountaineering Federation (UIAA), and often referred to as the 'Alpi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canton Of Uri
The canton of Uri (german: Kanton Uri rm, Chantun Uri; french: Canton d'Uri; it, Canton Uri) is one of the 26 cantons of Switzerland and a founding member of the Swiss Confederation. It is located in Central Switzerland. The canton's territory covers the valley of the Reuss between the St. Gotthard Pass and Lake Lucerne. The official language of Uri is (the Swiss variety of Standard) German, but the main spoken dialect is the Alemannic Swiss German called . Uri was once the only canton whose children in school had to learn Italian as their first foreign language, but in the school year of 2005/2006, that was changed to English, as in other Central and Northeastern Swiss cantons. The canton's population is about 35,000, of which 3,046 (or 8.7%) are foreigners. The legendary William Tell is said to have hailed from Uri. The historical landmark Rütli lies within the canton of Uri. Name The name of the valley is first mentioned in the 8th or 9th century, in the Latinized f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alpine Three-thousanders
Three-thousanders are mountains with a height of between , but less than above sea level. Similar terms are commonly used for mountains of other height brackets e. g. four-thousanders or eight-thousanders. In Britain, the term may refer to mountains above . Climatological significance In temperate latitudes three-thousanders play an important role, because even in summer they lie below the zero degree line for weeks. Thus the chains of three-thousanders always form important climatic divides and support glaciation - in the Alps the contour is roughly the general limit of the "nival step"; only a few glaciated mountains are under (the Dachstein, the easternmost glaciated mountain in the Alps, is, at , not a three-thousander). In the Mediterranean, however, the three-thousanders remain free of ice and, in the tropics, they are almost insignificant from a climatic perspective; here the snow line lies at around to , and in the dry continental areas (Trans-Himalayas, Ande ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quartz
Quartz is a hard, crystalline mineral composed of silica (silicon dioxide). The atoms are linked in a continuous framework of SiO4 silicon-oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO2. Quartz is the second most abundant mineral in Earth's continental crust, behind feldspar. Quartz exists in two forms, the normal α-quartz and the high-temperature β-quartz, both of which are chiral. The transformation from α-quartz to β-quartz takes place abruptly at . Since the transformation is accompanied by a significant change in volume, it can easily induce microfracturing of ceramics or rocks passing through this temperature threshold. There are many different varieties of quartz, several of which are classified as gemstones. Since antiquity, varieties of quartz have been the most commonly used minerals in the making of jewelry and hardstone carvings, especially in Eurasia. Quartz is the mineral defining the val ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minerals
In geology and mineralogy, a mineral or mineral species is, broadly speaking, a solid chemical compound with a fairly well-defined chemical composition and a specific crystal structure that occurs naturally in pure form.John P. Rafferty, ed. (2011): Minerals'; p. 1. In the series ''Geology: Landforms, Minerals, and Rocks''. Rosen Publishing Group. The geological definition of mineral normally excludes compounds that occur only in living organisms. However, some minerals are often biogenic (such as calcite) or are organic compounds in the sense of chemistry (such as mellite). Moreover, living organisms often synthesize inorganic minerals (such as hydroxylapatite) that also occur in rocks. The concept of mineral is distinct from rock, which is any bulk solid geologic material that is relatively homogeneous at a large enough scale. A rock may consist of one type of mineral, or may be an aggregate of two or more different types of minerals, spacially segregated into distinct ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amateur Geology
Amateur geology or rock collecting (also referred to as rockhounding in the United States and Canada) is the non-professional study and hobby of collecting rocks and minerals or fossil specimens from the natural environment.Sinkankas, John. Mineralogy For Amateurs. New York: Van Nostrand Reinhold, 1964. Print. In Australia, New Zealand and Cornwall, the activities of amateur geologists are called fossicking. The first amateur geologists were prospectors looking for valuable minerals and gemstones for commercial purposes. Eventually, however, more people have been drawn to amateur geology for recreational purposes, mainly for the beauty that rocks and minerals provide. Accessibility One reason for the rise in popularity of amateur geology is that a collection can begin by simply picking up a rock. There are also many clubs and groups that search for specimens and compare them in groups as a hobby. Information on where to find such groups can be found at libraries, bookstores, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphibolite
Amphibolite () is a metamorphic rock that contains amphibole, especially hornblende and actinolite, as well as plagioclase feldspar, but with little or no quartz. It is typically dark-colored and dense, with a weakly foliated or schistose (flaky) structure. The small flakes of black and white in the rock often give it a salt-and-pepper appearance. Amphibolite frequently forms by metamorphism of mafic igneous rocks, such as basalt. However, because metamorphism creates minerals entirely based upon the chemistry of the protolith, certain 'dirty marls' and volcanic sediments may also metamorphose to an amphibolite assemblage. Deposits containing dolomite and siderite also readily yield amphibolite (tremolite-schist, grunerite-schist, and others) especially where there has been a certain amount of contact metamorphism by adjacent granitic masses. Metamorphosed basalt (metabasalt) creates ''ortho-amphibolite'' and other chemically appropriate lithologies create ''para-amphibolite''. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
