Glacial landforms

  • Glacial Landforms
  • "Glacial landforms" are landforms derived from the erosion and deposition caused by glaciers and ice sheets, associated meltwater, and the Earth's rheological response. Such landforms include drumlins, moraines, cirques, fjords, etc. "Glacial processes" include deposition of sediments and erosion of the Earth's surface by grinding, scouring, and polishing effected by the movement of glacier ice armed with rock fragments frozen into it, together with the erosive action of meltwater streams.
Abstract from DBPedia
    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 very old fossil glacial landforms.

    氷河地形(ひょうがちけい、英: glacial landform)は、氷河の侵食と堆積作用により生まれた地形である。氷河氷が上部の氷による荷重によって部分的に融解したり結晶がルーズになったりしてすべりやすくなることで、上部の氷全体が板状に移動する氷の流れが発生する。この運動は、流れはおそいがその侵食力は大きく、氷の下や側面の岩盤が削りとられて運搬された岩屑によりさまざまな特徴のある堆積物や地形を形成する。このように氷河地形は、侵食地形や堆積物によって過去の氷河について証言してくれるものである。