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Alte Burg (Altenstein)
The Alte Burg ("Old Castle") is an early medieval ringwork between Altenstein and ''Lichtenstein'' in the borough of Market Maroldsweisach in the Lower Franconian county of Haßberge in the province of Lower Franconia in Bavaria, Germany. Location The circular rampart lies at a height of on a rocky spur on the northern slopes of a ridge in the Franconian Haßberge hills, which are also home to the high medieval castles of Altenstein, Lichtenstein, Rotenhan and Teufelsstein. Only about 150 metres east in the forest is another protected monument, also called the Alte Burg. Description The medium-sized (ca. 115×150 metres) ringwork, which is assumed to date to the Early Middle Ages, is protected to the northeast and southeast by a steep slope and is surrounded by a sandstone wall, which has survived in places. This wall consists of dry sandstone ashlars and most of it is embedded in a rampart up to five metres high. A short section of the circular rampart in the south ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hill Castle
A hill castle or mountain castle is a castle built on a natural feature that stands above the surrounding terrain. It is a term derived from the German ''Höhenburg'' used in categorising castle sites by their topographical location. Hill castles are thus distinguished from lowland castles (''Niederungsburgen''). Hill castles may be further subdivided depending on their situation into the following: * Hilltop castle (''Gipfelburg''), that stands on the summit of a hill with steep drops on all sides. A special type is the rock castle or ''Felsenburg''. * Ridge castle (''Kammburg''), that is built on the crest of a ridge. * Hillside castle (''Hangburg''), that is built on the side of a hill and thus is dominated by rising ground on one side. * Spur castle (''Spornburg''), that is built on a hill spur surrounded by steep terrain on three sides and thus only needs to be defended on the one remaining side. When in the 10th and 11th centuries castles lost their pure fortress charact ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Teufelsstein (Haßberge)
The Teufelsstein in the Haardt mountains, near the Palatine county town of Bad Dürkheim in the German state of Rhineland-Palatinate, is a hill . On its domed summit is a monolith of the same name (which means "Devil's Rock"). Traces of human activity on the rock indicate that it acted as a cult object in former times. Geography The hill, which is a southeastern spur of the 487-metre-high Peterskopf massif, lies north of where the River Isenach breaks out of the Palatinate Forest mountains into the hill country of the Weinstraße and Upper Rhine Plain. From its summit, which nowadays is wooded, there is an all-round view over the Rhine Plain to the east, the Palatinate Forest to the west, and its eastern mountain range, the Haardt, which runs from north to south. Until 1981, when it was closed for legal reasons, a gondola lift ran from the site of the Dürkheimer Wurstmarkt, the ''Brühlwiesen'', in a northwesterly direction up to the top of the Teufelsstein. A southern outli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geotope
A geotope is the geological component of the abiotic matrix present in an ecotope. Example geotopes might be an exposed outcrop of rocks, an erratic boulder, a grotto or ravine, a cave, an old stone wall marking a property boundary, and so forth. It is a loanword from German ''( Geotop)'' in the study of ecology and might be the model for many other similar words coined by analogy. As the prototype, it has enjoyed wider currency than many of the other words modelled on it, including physiotope, with which it is used synonymously. But the geotope is properly the rocks and not the whole lay of the land (which would be the physiotope). For usage in the context of geoheritage, like e.g. in Friedrich Wiedenbein's contributions (see below) and in the German discussion on geoheritage, the more adequate term (and translation from the German) is geosite. See also * Ecological land classification Ecological classification or ecological typology is the classification of land or water in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Feuerletten
The Feuerletten Formation is a geological formation in Germany. It dates back to the late Norian.Weishampel, David B; et al. (2004). "Dinosaur distribution (Late Triassic, Europe)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 521–525. . Vertebrate fauna See also * List of dinosaur-bearing rock formations This list of dinosaur-bearing rock formations is a list of geologic formations in which dinosaur fossils have been documented. Containing body fossils * List of stratigraphic units with dinosaur body fossils ** List of stratigraphic units with ... References {{Reflist Triassic System of Europe Norian Stage ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Windthrow
In forestry, windthrow refers to trees uprooted by wind. Breakage of the tree bole (trunk) instead of uprooting is called windsnap. Blowdown refers to both windthrow and windsnap. Causes Windthrow is common in all forested parts of the world that experience storms or high wind speeds. The risk of windthrow to a tree is related to the tree's size (height and diameter), the 'sail area' presented by its crown, the anchorage provided by its roots, its exposure to the wind, and the local wind climate. A common way of quantifying the risk of windthrow to a forest area is to model the probability or 'return time' of a wind speed that would damage those trees at that location. Another potential method is the detection of scattered windthrow based on satellite images. Tree senescence can also be a factor, where multiple factors contributing to the declining health of a tree reduce its anchorage and therefore increase its susceptibility to windthrow. The resulting damage can be a si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Archaeological Site
An archaeological site is a place (or group of physical sites) in which evidence of past activity is preserved (either prehistoric or historic or contemporary), and which has been, or may be, investigated using the discipline of archaeology and represents a part of the archaeological record. Sites may range from those with few or no remains visible above ground, to buildings and other structures still in use. Beyond this, the definition and geographical extent of a "site" can vary widely, depending on the period studied and the theoretical approach of the archaeologist. Geographical extent It is almost invariably difficult to delimit a site. It is sometimes taken to indicate a settlement of some sort although the archaeologist must also define the limits of human activity around the settlement. Any episode of deposition such as a hoard or burial can form a site as well. Development-led archaeology undertaken as cultural resources management has the disadvantage (or the ben ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moat
A moat is a deep, broad ditch, either dry or filled with water, that is dug and surrounds a castle, fortification, building or town, historically to provide it with a preliminary line of defence. In some places moats evolved into more extensive water defences, including natural or artificial lakes, dams and sluices. In older fortifications, such as hillforts, they are usually referred to simply as ditches, although the function is similar. In later periods, moats or water defences may be largely ornamental. They could also act as a sewer. Historical use Ancient Some of the earliest evidence of moats has been uncovered around ancient Egyptian castles. One example is at Buhen, a castle excavated in Nubia. Other evidence of ancient moats is found in the ruins of Babylon, and in reliefs from ancient Egypt, Assyria, and other cultures in the region. Evidence of early moats around settlements has been discovered in many archaeological sites throughout Southeast Asia, including ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gate
A gate or gateway is a point of entry to or from a space enclosed by walls. The word derived from old Norse "gat" meaning road or path; But other terms include ''yett and port''. The concept originally referred to the gap or hole in the wall or fence, rather than a barrier which closed it. Gates may prevent or control the entry or exit of individuals, or they may be merely decorative. The moving part or parts of a gateway may be considered "doors", as they are fixed at one side whilst opening and closing like one. A gate may have a latch that can be raised and lowered to both open a gate or prevent it from swinging. Locks are also used on gates to increase the security. Larger gates can be used for a whole building, such as a castle or fortified town. Actual doors can also be considered gates when they are used to block entry as prevalent within a gatehouse. Today, many gate doors are opened by an automated gate operator. Purpose-specific types of gate * Baby gate a safety ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ditch (fortification)
In military engineering, a ditch is an obstacle designed to slow down or break up an attacking force, while a trench is intended to provide cover to the defenders. In military fortifications the side of a ditch farthest from the enemy and closest to the next line of defence is known as the scarp while the side of a ditch closest to the enemy is known as the counterscarp. Uses In early fortifications, ditches were often used in combination with ramparts to slow down the enemy whilst defensive fire could be brought to bear from the relative protection afforded by the rampart and possibly the palisade. In medieval fortification, a ditch was often constructed in front of a defensive wall to hinder mining and escalade activities from an attacker. When filled with water, such a defensive ditch is called a moat. However, moats may also be dry. Later star forts designed by military engineers like Vauban, comprised elaborate networks of ditches and parapets, carefully calculated ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rampart (fortification)
In fortification architecture, a bank or rampart is a length of embankment or wall forming part of the defensive boundary of a castle, hillfort, settlement or other fortified site. It is usually broad-topped and made of excavated earth and/or masonry.Darvill, Timothy (2008). ''Oxford Concise Dictionary of Archaeology'', 2nd ed., Oxford University Press, Oxford and New York, p. 376. . Early fortifications Many types of early fortification, from prehistory through to the Early Middle Ages, employed earth ramparts usually in combination with external ditches to defend the outer perimeter of a fortified site or settlement. Hillforts, ringforts or "raths" and ringworks all made use of ditch and rampart defences, and they are the characteristic feature of circular ramparts. The ramparts could be reinforced and raised in height by the use of palisades. This type of arrangement was a feature of the motte and bailey castle of northern Europe in the early medieval period. Types of ram ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ashlar
Ashlar () is finely dressed (cut, worked) stone, either an individual stone that has been worked until squared, or a structure built from such stones. Ashlar is the finest stone masonry unit, generally rectangular cuboid, mentioned by Vitruvius as opus isodomum, or less frequently trapezoidal. Precisely cut "on all faces adjacent to those of other stones", ashlar is capable of very thin joints between blocks, and the visible face of the stone may be quarry-faced or feature a variety of treatments: tooled, smoothly polished or rendered with another material for decorative effect. One such decorative treatment consists of small grooves achieved by the application of a metal comb. Generally used only on softer stone ashlar, this decoration is known as "mason's drag". Ashlar is in contrast to rubble masonry, which employs irregularly shaped stones, sometimes minimally worked or selected for similar size, or both. Ashlar is related but distinct from other stone masonry that is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sandstone
Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains. Sandstones comprise about 20–25% of all sedimentary rocks. Most sandstone is composed of quartz or feldspar (both silicates) because they are the most resistant minerals to weathering processes at the Earth's surface. Like uncemented sand, sandstone may be any color due to impurities within the minerals, but the most common colors are tan, brown, yellow, red, grey, pink, white, and black. Since sandstone beds often form highly visible cliffs and other topographic features, certain colors of sandstone have been strongly identified with certain regions. Rock formations that are primarily composed of sandstone usually allow the percolation of water and other fluids and are porous enough to store large quantities, making them valuable aquifers and petroleum reservoirs. Quartz-bearing sandstone can be changed into quartzite through metamorphism, usually related to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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