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Roche moutonnée near Myot Hill, Scotland In glaciology, a roche moutonnée (or sheepback) is a rock formation created by the passing of a glacier.The passage of glacial ice over underlying bedrock often results in asymmetric erosional forms as a result of abrasion on the "stoss" (upstream) side of the rock, and plucking (i.e. pieces cracked off) on the "lee" (downstream) side.
Lembert Dome is a granite dome rock formation in Yosemite National Park in the US state of California.The dome soars 800 feet (240 m) above Tuolumne Meadows and the Tuolumne River and can be hiked starting at the Tioga Road in the heart of Tuolumne Meadows, 8 miles (13 km) west of the Tioga Pass Entrance to Yosemite National Park.
Erosional landforms. As the glaciers expand, due to their accumulating weight of snow and ice they crush, abrade, and scour surfaces such as rocks and bedrock.The resulting erosional landforms include striations, cirques, glacial horns, arêtes, trim lines, U-shaped valleys, roches moutonnées, overdeepenings and hanging valleys.
Mt. Susitna is a roche moutonnée, a landform created when a glacier flows over a resistant, topographically high, bedrock body, creating a smooth-sided and teardrop shaped feature aligned with the direction of ice flow. [5] The Anchorage bowl topography has been influenced by 5-7 glaciations.
Ronas Voe has been named Shetland's "only true fjord". [27] The cliffs of Ronas Voe are the result of ancient glaciers cutting through a ridge of raised land. [28] The cliffs at the Brough are an example of a roche moutonnée, in which the exposed rock has been sculpted by the passing glacier creating a smooth surface up-ice, and a rough exterior on the rock down-ice.
Cadair Idris or Cader Idris is a mountain in the Meirionnydd area of Gwynedd, Wales.It lies at the southern end of the Snowdonia National Park near the town of Dolgellau.The peak, which is one of the most popular in Wales for walkers and hikers, [1] is composed largely of Ordovician igneous rocks, with classic glacial erosion features such as cwms, moraines, striated rocks, and roches moutonnées.
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At the north end of the village sit a display of glaciated rocks called the roche moutonnées. Around 18,000 years ago Dulnain Bridge was covered by a sheet of glacier ice. As the ice moved along it ground down and shaped the rock. As the ice melted, it left smooth, exposed rock in some places and a mixture of boulder and clay in other areas.