Page 263 - Fundamentals of Geomorphology
P. 263

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                          GLACIAL AND GLACIOFLUVIAL

                                          LANDSCAPES



























              Sheets, caps, and rivers of ice flow over frozen landscapes; seasonal meltwater courses over landscapes at the edges of
              ice bodies. This chapter covers:

                 ice and where it is found
                 glaciated valleys and other landforms created by ice erosion
                 drumlins and other landforms created by ice deposition
                 eskers and other landforms created by meltwater
                 ice-conditioned landforms

                 humans and icy landscapes
              Meltwater in action: glacial superfloods

              The Altai Mountains in southern Russia consist of huge intermontane basins and high mountain ranges, some over
              4,000 m. During the Pleistocene, the basins were filled by lakes wherever glaciers grew large enough to act as dams.
              Research in this remote area has revealed a fascinating geomorphic history (Rudoy 1998). The glacier-dammed
              lakes regularly burst out to generate glacial superfloods that have left behind exotic relief forms and deposits – giant
              current ripple-marks, swells and terraces, spillways, outburst and oversplash gorges, dry waterfalls, and so on. These
              features are‘diluvial’ in origin, meaningthey were produced byalargeflood.They arealliedtotheChanneledScabland
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