By Andrew S. Goudie
According to 4 many years of study via Professor Andrew Goudie, this quantity offers a state of the art synthesis of our realizing of barren region geomorphology. It offers a very overseas point of view, with examples from around the world. commonly referenced and illustrated, it covers such themes because the significance of prior climatic alterations, the range of alternative wilderness environments, rock breakdown, wind erosion and dirt hurricane new release, sand dunes, fluvial and slope kinds and strategies, the position of the utilized geomorphologist in wasteland improvement and conservation, and the Earth as an analogue for different planetary our bodies. This e-book is destined to turn into the vintage quantity on arid and semi-arid geomorphology for complex scholars and researchers in actual geography, geomorphology, Earth technological know-how, sedimentology, environmental technological know-how, and archaeology.
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Additional info for Arid and Semi-Arid Geomorphology
Krebs et al. (2011) suggest that late Pliocene aridification of Australia may have been caused by tectonically induced changes in ocean circulation through Indonesia. , 2012). 3 Evidence for palaeoenvironmental reconstruction in drylands Evidence 1. g. cave) phenomena Frost screes 2. Sedimentological Lake floor sediments Swamp ore and rhizoconcretion deposits Lee dune (lunette) stratigraphy Spring deposits and tufas Duricrusts and palaeosols Dust and river sediments in ocean cores Loess profiles and palaeosols Cave sediments 3.
The upward and outward growth of the Tibetan Plateau may also have contributed to decreasing monsoon rainfall over north-western India since c 10 Ma (Molnar and Rajagopalan, 2012). 7 Increasing Aridity In many regions aridity intensified in the late Pliocene and Pleistocene. It became a prominent feature of the Sahara in the late Cenozoic, partly because of ocean cooling and partly because the buildup of ice caps created a steeper temperature gradient between the equator and the poles. This led to an increase in trade-wind velocities and in their ability to mobilize dust.
2 100 43 1 10 10 1 1 1 28 2 3 100 39 1 18 6 3 1 1 22 8 1 100 47 1 16 1 1 1 4 26 1 2 100 Source: Clements et al. (1957) in Cooke et al. (1993). 0 Source: Mabbutt (1971). (c) Extent of landform types in Afghanistan (%) Sand sheets Playas Broad river valleys Plateaux Alluvial plains Pediments Sand seas/dunes Alluvial fans Badlands Mountain highlands 1 1 1 4 7 9 9 10 13 45 Source: Bacon et al. (2008). 0 Source: Abraham et al. (2009). Both shield and basin and range deserts include mountains and plains, although their relative proportions differ.
Arid and Semi-Arid Geomorphology by Andrew S. Goudie