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A dip slope is a topographic (geomorphic) surface which slopes in the same direction, and often by the same amount, as the true dip or apparent dip of the underlying strata. A dip slope consists of the upper surface of a resistant layer of rock, often called caprock, that is commonly only slightly lowered and reduced in steepness by erosion. Dip slopes form the backslopes of cuestas, homoclinal ridges, hogbacks, and flatirons. The frontslopes of such ridges consist of either an escarpment, a steep slope, or perhaps even a line of cliffs. Generally, cuestas and homoclinal ridges are asymmetrical in that their dip slopes are less steep than their escarpments. In the case of hogbacks and flatirons, the dip of the rocks is so steep that their dip slope approaches the escarpment in their steepn

AttributesValues
rdf:type
rdfs:label
  • Dorso de cuesta (es)
  • Dip slope (en)
  • Franapoggio (it)
  • 流れ盤 (ja)
  • 順向坡 (zh)
rdfs:comment
  • 流れ盤(ながればん)とは、岩盤(堆積岩層、火成岩層、変成岩層、互層状態など)の露頭において地層の傾斜が地形の傾斜に対して同一方向(流れ目)に傾斜していることをいう。地すべりの機構を解析する調査、土木工事では特に切土、また法面成形工事を行う際には注意すべき地質条件である。反対に、地層の傾斜が地形の傾斜に対して交差(差し目)しているのを受け盤という。 * 地層の傾斜は、露頭面の見かけの傾斜と実際の傾斜が異なることが多いので、クリノメーター等でしっかり走行面、傾斜面、割れ目の状態などを測定し、地質構造を把握する必要がある。 * 流れ盤の地質構造が地すべり活動を誘発させることもあるので、道路工事などで流れ板の斜面下部を直交する方向に掘削などを行う土木工事では、崩壊に備えた注意が必要である。 * 受け盤は比較的安定している場合が多いが、しばしばトップリングに伴う斜面崩壊、山体崩壊が発生する。 (ja)
  • 順向坡(英語:Dip slope),又稱傾斜坡、傾向坡,是一種地質環境,表示一個波面的沉積堆疊方向,較容易發生山崩,常見於遭侵蚀作用的地层(例如:斷崖)。 (zh)
  • A dip slope is a topographic (geomorphic) surface which slopes in the same direction, and often by the same amount, as the true dip or apparent dip of the underlying strata. A dip slope consists of the upper surface of a resistant layer of rock, often called caprock, that is commonly only slightly lowered and reduced in steepness by erosion. Dip slopes form the backslopes of cuestas, homoclinal ridges, hogbacks, and flatirons. The frontslopes of such ridges consist of either an escarpment, a steep slope, or perhaps even a line of cliffs. Generally, cuestas and homoclinal ridges are asymmetrical in that their dip slopes are less steep than their escarpments. In the case of hogbacks and flatirons, the dip of the rocks is so steep that their dip slope approaches the escarpment in their steepn (en)
  • Un dorso de cuesta es una superficie topográfica (geomórfica) que se inclina en la misma dirección, y con frecuencia en la misma cantidad, que la verdadera pendiente o inclinación aparente de los estratos subyacentes.​​ Un dorso de cuesta es la superficie superior de una capa de roca resistente, a menudo denominada , que normalmente apenas se asienta y cuya pendiente se reduce por efecto de la erosión. Los dorsos de cuesta conforman los salientes de cuestas, , (hogbacks)y placas de roca (flatirons). Las pendientes de estas crestas consisten en un escarpado, una pendiente pronunciada o incluso una línea de acantilados. En general, las cuestas y las crestas homoclinales son asimétricas en el sentido de que sus pendientes de inclinación son menos empinadas que sus escarpas. En el caso de los (es)
  • Il franapoggio è un versante costituito da rocce sedimentarie (ma anche magmatiche o metamorfiche, purché sia presente almeno una famiglia di discontinuità) nel quale le superfici di strato o le discontinuità abbiano immersione nello stesso verso dell'inclinazione del versante. Si distinguono due tipi di giacitura a franapoggio: Il lato sud (a destra) del monte Rundle in Canada costituisce un ottimo esempio di franapoggio L'assetto strutturale opposto a quello di franapoggio viene detto a reggipoggio. (it)
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  • http://commons.wikimedia.org/wiki/Special:FilePath/Cuesta_schematic1.png
  • http://commons.wikimedia.org/wiki/Special:FilePath/MountRundle.jpg
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  • A dip slope is a topographic (geomorphic) surface which slopes in the same direction, and often by the same amount, as the true dip or apparent dip of the underlying strata. A dip slope consists of the upper surface of a resistant layer of rock, often called caprock, that is commonly only slightly lowered and reduced in steepness by erosion. Dip slopes form the backslopes of cuestas, homoclinal ridges, hogbacks, and flatirons. The frontslopes of such ridges consist of either an escarpment, a steep slope, or perhaps even a line of cliffs. Generally, cuestas and homoclinal ridges are asymmetrical in that their dip slopes are less steep than their escarpments. In the case of hogbacks and flatirons, the dip of the rocks is so steep that their dip slope approaches the escarpment in their steepness. Dip slopes are the result of the differential erosion of strata of varying resistance to erosion that are dipping uniformly in one direction. In this case, strata, i.e. shale, mudstone, and marl, that are less resistant to erosion are preferentially eroded relative to stronger strata, i.e. sandstone, limestone, and dolomite, that are more resistant to erosion. As a result, the less resistant strata will be eroded away leaving the more resistant strata as a caprock forming the dip slope (backslope) of a ridge that slopes in the direction of caprock. When this happens to flat-lying beds, landforms such as plateaus, mesas, and buttes are formed. The erosion of tilted beds will form landforms called cuestas, homoclinal ridges, hogbacks, and flatirons. Plateaus, mesas, and buttes have flat tops, while cuestas and homoclinal ridges are asymmetrical (~flat) areas w/ridges. The less steep side (at the low point) is their dip slope (intersecting 'ground' surface, and disappearing underground) and the steeper other side (the opposite, and at the high point) is their escarpment. In case of hogbacks, the steepness of the dip slope and escarpment will be about the same. Dip slopes can also be formed by igneous structures such as sills. (en)
  • Un dorso de cuesta es una superficie topográfica (geomórfica) que se inclina en la misma dirección, y con frecuencia en la misma cantidad, que la verdadera pendiente o inclinación aparente de los estratos subyacentes.​​ Un dorso de cuesta es la superficie superior de una capa de roca resistente, a menudo denominada , que normalmente apenas se asienta y cuya pendiente se reduce por efecto de la erosión. Los dorsos de cuesta conforman los salientes de cuestas, , (hogbacks)y placas de roca (flatirons). Las pendientes de estas crestas consisten en un escarpado, una pendiente pronunciada o incluso una línea de acantilados. En general, las cuestas y las crestas homoclinales son asimétricas en el sentido de que sus pendientes de inclinación son menos empinadas que sus escarpas. En el caso de los abaulamientos y las llanuras, la inclinación de las rocas es tan abrupta que su declive se acerca al escarpe en su pendiente.​​​​ (es)
  • Il franapoggio è un versante costituito da rocce sedimentarie (ma anche magmatiche o metamorfiche, purché sia presente almeno una famiglia di discontinuità) nel quale le superfici di strato o le discontinuità abbiano immersione nello stesso verso dell'inclinazione del versante. Si distinguono due tipi di giacitura a franapoggio: * franapoggio meno inclinato del pendio: è il caso in cui l'angolo di inclinazione della discontinuità è minore di quello del pendio. L'andamento della superficie di discontinuità, quando mappata, segue, accentuandole le curve di livello . * franapoggio più inclinato del pendio: è il caso in cui l'angolo di inclinazione della discontinuità è superiore a quello del pendio. L'andamento della superficie di discontinuità, quando mappata, è opposto a quello delle curve di livello. Questo assetto strutturale fa sì che il versante si trovi potenzialmente in condizione di equilibrio precario, dovuto al fatto che le bancate di roccia (separate dalle superfici di stratificazione o di discontinuità) tendono a scivolare o franare verso valle e questo loro movimento è favorito dalla disposizione del versante. La stabilità del pendio può essere ulteriormente ridotta quando, fra uno strato e l’altro, esistono livelli lubrificanti (marne, argille, gessi ecc.). Il lato sud (a destra) del monte Rundle in Canada costituisce un ottimo esempio di franapoggio L'assetto strutturale opposto a quello di franapoggio viene detto a reggipoggio. (it)
  • 流れ盤(ながればん)とは、岩盤(堆積岩層、火成岩層、変成岩層、互層状態など)の露頭において地層の傾斜が地形の傾斜に対して同一方向(流れ目)に傾斜していることをいう。地すべりの機構を解析する調査、土木工事では特に切土、また法面成形工事を行う際には注意すべき地質条件である。反対に、地層の傾斜が地形の傾斜に対して交差(差し目)しているのを受け盤という。 * 地層の傾斜は、露頭面の見かけの傾斜と実際の傾斜が異なることが多いので、クリノメーター等でしっかり走行面、傾斜面、割れ目の状態などを測定し、地質構造を把握する必要がある。 * 流れ盤の地質構造が地すべり活動を誘発させることもあるので、道路工事などで流れ板の斜面下部を直交する方向に掘削などを行う土木工事では、崩壊に備えた注意が必要である。 * 受け盤は比較的安定している場合が多いが、しばしばトップリングに伴う斜面崩壊、山体崩壊が発生する。 (ja)
  • 順向坡(英語:Dip slope),又稱傾斜坡、傾向坡,是一種地質環境,表示一個波面的沉積堆疊方向,較容易發生山崩,常見於遭侵蚀作用的地层(例如:斷崖)。 (zh)
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