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Outwash plains may contain other glaciofluvial landforms including meltwater streams, kames, and kettle lakes. River systems in outwash plains typically form braided rivers due to the high sediment content in the water. [42] [4] Since these streams meander around, the erosion happens laterally (left to right) instead of vertically (up and down ...
New York's Finger Lakes.Lying south of Lake Ontario, the Finger Lakes formed in tunnel valleys. A tunnel valley is a U-shaped valley originally cut under the glacial ice near the margin of continental ice sheets such as that now covering Antarctica and formerly covering portions of all continents during past glacial ages. [1]
Skeiðarársandur in Iceland, viewed from its eastern margin at the terminus of Svínafellsjökull glacier. An outwash plain, also called a sandur (plural: sandurs [1]), sandr [2] or sandar, [3] is a plain formed of glaciofluvial deposits due to meltwater outwash at the terminus of a glacier.
Glacial landforms are landforms created by the action of glaciers. Most of today's glacial landforms were created by the movement of large ice sheets during the Quaternary glaciations . Some areas, like Fennoscandia and the southern Andes , have extensive occurrences of glacial landforms; other areas, such as the Sahara , display rare and very ...
In geography and geology, fluvial sediment processes or fluvial sediment transport are associated with rivers and streams and the deposits and landforms created by sediments. It can result in the formation of ripples and dunes , in fractal -shaped patterns of erosion, in complex patterns of natural river systems, and in the development of ...
Drumlins and drumlin swarms are glacial landforms composed primarily of glacial till. They form near the margin of glacial systems, and within zones of fast flow deep within ice sheets , and are commonly found with other major glacially-formed features (including tunnel valleys , eskers , scours, and exposed bedrock erosion ).
Subglacial streams are conduits of glacial meltwater that flow at the base of glaciers and ice caps. [1] Meltwater from the glacial surface travels downward throughout the glacier, forming an englacial drainage system consisting of a network of passages that eventually reach the bedrock below, where they form subglacial streams. [1]
Satellite image of kettle lakes in Yamal Peninsula (Northern Siberia), adjacent to the Gulf of Ob (right). The lake colors indicate amounts of sediment or depth. A kettle (also known as a kettle hole, kettlehole, or pothole) is a depression or hole in an outwash plain formed by retreating glaciers or draining floodwaters.