Premium
Discussion: denudation rates in southeast Northumberland since the Devensian glaciation
Author(s) -
Clark Richard
Publication year - 1998
Publication title -
earth surface processes and landforms
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.294
H-Index - 127
eISSN - 1096-9837
pISSN - 0197-9337
DOI - 10.1002/(sici)1096-9837(199812)23:12<1135::aid-esp937>3.0.co;2-3
Subject(s) - glacial period , denudation , geology , glacial landform , meltwater , erosion , landform , glacier , physical geography , geomorphology , drumlin , ice caps , moraine , paleontology , ice stream , cryosphere , geography , oceanography , tectonics , sea ice
Field examination and review of previous studies show that glacial landforms are widespread in southeast Northumberland and across the local altitude range. Ice‐contact deposits occur on the main valley floors. Numerous subglacial channels descend to or close to present valley floors, and many of the lesser valleys have carried meltwater and glaciofluvial sediment. In major part, the land surface retains its end‐glacial form and age. Evidence for a landscape largely end‐glacial in form and age rather than one produced since loss of ice cover by laterally diverse erosion indicates that rates of denudation over the last 15 ka have been less than those obtained from height differences between actual surface and a reconstructed notional end‐glacial surface. Copyright © 1998 John Wiley & Sons, Ltd.