Reconstructing Quaternary Environments
This third edition of Reconstructing Quaternary Environments has been completely revised and updated to provide a new account of the history and scale of environmental changes during the Quaternary. The evidence is extremely diverse ranging from landforms and sediments to fossil assemblages and geochemical data, and includes new data from terrestrial, marine and ice-core records. Dating methods are described and evaluated, while the principles and practices of Quaternary stratigraphy are also discussed. The volume concludes with a new chapter which considers some of the key questions about the nature, causes and consequences of global climatic and environmental change over a range of temporal scales. This synthesis builds on the methods and approaches described earlier in the book to show how a number of exciting ideas that have emerged over the last two decades are providing new insights into the operation of the global earth-ocean-atmosphere system, and are now central to many areas of contemporary Quaternary research.
This comprehensive and dynamic textbook is richly illustrated throughout with full-colour figures and photographs. The book will be of interest to undergraduates, postgraduates and professionals in Earth Science, Environmental Science, Physical Geography, Geology, Botany, Zoology, Ecology, Archaeology and Anthropology
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... showing the icemoulded landscape of part of the Midland Valley of Scotland Moraine systems in a) BhutanHimalaya, ... LGM. c) The pattern of retreat moraines of the MichiganHuron lobe after the LGM Retreat pattern of the Laurentide ...
The maximal extent of ice cover was based largely on the evidence of conspicuous 'end moraines' or on the limits of glacigenic deposits ('Drift Border'), and by 1878, a map had been produced of the southern margin of the glaciated area ...
... of drift sheets often have no distinctive geomorphological expression, and end moraines in particular are absent. ... did not maintain a steadystate 4 position for the length of time required for the construction of an end moraine.
Figure 2.4 Moraine systems. a) NASA satellite image of the glacier icefield in BhutanHimalaya. Note the glaciers are receding, leaving a series of arcuate ('horseshoe') moraines and lakes near their termini. b) Marginal lateral moraines ...
... this is marked by the upper limit of icepolished bedrock above which the rock surfaces show evidence of prolonged frost shattering (photograph by Sven Lukas, Queen Mary University of London, UK). Where end moraines are found within.