In structural geology, a homocline or homoclinal structure (from old Greek: homo = same, cline = inclination), is a geological structure in which the layers of a sequence of rock strata, either sedimentary or igneous, dip uniformly in a single direction having the same general inclination in terms of direction and angle. A homocline can be associated with either one limb of a fold, the edges of a dome, the coast-ward tilted strata underlying a coastal plain, slice of thrust fault, or a tilted fault block. When the homoclinal strata consists of alternating layers of rock that vary hardness and resistance to erosion, their erosion produces either cuestas, homoclinal ridges, or hogbacks depending on the angle of dip of the strata. On a topographic map, the landfroms associated with homoclines
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| - Homocline (en)
- Гомокліналь (uk)
- 同斜层 (zh)
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| - 同斜层(英語:Homocline)是一種地質結構,指一系列岩層,無論是沉積岩還是火成岩,都沿單一方向均勻傾斜。具有相同的傾角方向和角度 .同斜层可以是褶皺構造的一個褶皺翼、圓頂構造的邊緣、在沿海平原下的向大海傾斜的地層、逆衝斷層的斷塊或傾斜斷層的斷塊。若地層由不同硬度和抗侵蝕性的交替岩層組成時,被侵蝕后會產生 單面山、同向山脊或豬背嶺 。在地形圖上,同斜层可由幾乎平行的等高線認出,而些等高線在同一方向上具有相同高度變化。在地下,它們為特徵是具有平行的構造線 。 Unicline 和 Uniclinal是兩個混淆的地質名詞,目前已不被采 . 若一系列沉積岩或火成岩地層,具有不同抵抗侵蝕的交替地層,它們的同斜层會形成獨特的地貌,例如,根據傾角不同 地形可漸變從單面山到同斜山脊到豬背脊。抵抗侵蝕力較小的地層優先被侵蝕,形成山谷。抵抗侵蝕力較大的地層則形成的山脊。抗抵抗侵蝕能力差異越大,谷與脊之間的起伏越明顯 。 (zh)
- In structural geology, a homocline or homoclinal structure (from old Greek: homo = same, cline = inclination), is a geological structure in which the layers of a sequence of rock strata, either sedimentary or igneous, dip uniformly in a single direction having the same general inclination in terms of direction and angle. A homocline can be associated with either one limb of a fold, the edges of a dome, the coast-ward tilted strata underlying a coastal plain, slice of thrust fault, or a tilted fault block. When the homoclinal strata consists of alternating layers of rock that vary hardness and resistance to erosion, their erosion produces either cuestas, homoclinal ridges, or hogbacks depending on the angle of dip of the strata. On a topographic map, the landfroms associated with homoclines (en)
- Гомокліналь (рос. гомоклиналь, англ. homocline, нім. Homokline f) – монокліналь з рівномірним нахилом шарів. У структурній геології Гомокліналь або гомоклінальна структура - це геологічна структура, в якій шари послідовності порід страти або осадові або магматичні рівномірно залягають в одному напрямку, і мають однаковий загальний нахил з точки зору напрямку та кута. (uk)
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| - the coast-ward tilted strata underlying a coastal plain (en)
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| - In structural geology, a homocline or homoclinal structure (from old Greek: homo = same, cline = inclination), is a geological structure in which the layers of a sequence of rock strata, either sedimentary or igneous, dip uniformly in a single direction having the same general inclination in terms of direction and angle. A homocline can be associated with either one limb of a fold, the edges of a dome, the coast-ward tilted strata underlying a coastal plain, slice of thrust fault, or a tilted fault block. When the homoclinal strata consists of alternating layers of rock that vary hardness and resistance to erosion, their erosion produces either cuestas, homoclinal ridges, or hogbacks depending on the angle of dip of the strata. On a topographic map, the landfroms associated with homoclines exhibit nearly parallel elevation contour lines that show a steady change in elevation in a given direction. In the subsurface, they characterize by parallel structural contour lines. Unicline and Uniclinal are obsolete and currently uncommon terms that are defined and have been used by geologists and geomorphologists in an inconsistent and contradictory manner. They are terms that have been used in a mutually exclusive manner as a synonym for either a homocline or monocline depending the author. The meaning of this term has been further confused by Grabau, who redefined uniclinal, not as a geological structure, but as a general term for ridges produced by erosion of anticlines. The erosion of tilted sequences of either stratified sedimentary or igneous rock, homoclines, of alternating resistance to erosion produce distinctive landforms that form a gradational continuum from cuestas through homoclinal ridges to hogbacks. Less resistant beds are preferentially eroded creating valleys that lie between ridges created by the erosion of more resistant beds. For example, the erosion of homoclines consisting of resistant beds of either limestone, sandstone, or both interbedded with weaker, less resistant beds of either shale, siltstone, marl, or combination of them will produce either cuestas, homoclinal ridges, or hogbacks depending on the angle of dip of the strata. The greater the difference in the resistance to erosion, the more pronounced the structural control and relief between valley and ridge crest. (en)
- Гомокліналь (рос. гомоклиналь, англ. homocline, нім. Homokline f) – монокліналь з рівномірним нахилом шарів. У структурній геології Гомокліналь або гомоклінальна структура - це геологічна структура, в якій шари послідовності порід страти або осадові або магматичні рівномірно залягають в одному напрямку, і мають однаковий загальний нахил з точки зору напрямку та кута. На топографічній карті гомокліналь позначена характерними майже паралельними лініями контуру висот, які показують постійну зміну висоти у певному напрямку. У підповерхні вони характеризуються паралельними структурними контурними лініями. (uk)
- 同斜层(英語:Homocline)是一種地質結構,指一系列岩層,無論是沉積岩還是火成岩,都沿單一方向均勻傾斜。具有相同的傾角方向和角度 .同斜层可以是褶皺構造的一個褶皺翼、圓頂構造的邊緣、在沿海平原下的向大海傾斜的地層、逆衝斷層的斷塊或傾斜斷層的斷塊。若地層由不同硬度和抗侵蝕性的交替岩層組成時,被侵蝕后會產生 單面山、同向山脊或豬背嶺 。在地形圖上,同斜层可由幾乎平行的等高線認出,而些等高線在同一方向上具有相同高度變化。在地下,它們為特徵是具有平行的構造線 。 Unicline 和 Uniclinal是兩個混淆的地質名詞,目前已不被采 . 若一系列沉積岩或火成岩地層,具有不同抵抗侵蝕的交替地層,它們的同斜层會形成獨特的地貌,例如,根據傾角不同 地形可漸變從單面山到同斜山脊到豬背脊。抵抗侵蝕力較小的地層優先被侵蝕,形成山谷。抵抗侵蝕力較大的地層則形成的山脊。抗抵抗侵蝕能力差異越大,谷與脊之間的起伏越明顯 。 (zh)
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