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Laterite is an iron-rich, sub-aerial, weathering product, commonly considered to evolve as a result of intense, in situ substrate alteration under tropical or sub-tropical climatic conditions. It comprises an important subset of a wider range of ferruginous, and related aluminous (i.e. bauxitic), weathering products which include ferricretes and various iron-rich palaeosols. Laterite weathering profiles often develop an indurated surface layer of resistant duricrust, forming laterally extensive sheets c.1 – 20 m in thickness (Figure 1). These lateritized surfaces are both chemically and physically resistant and may extend over areas of a few, to hundreds, or even thousands of square kilometres.
|Item Type:||Book Chapter|
|Keywords:||laterite, ferricrete, duricrust, palaeoclimate, palaeosurface|
|Academic Unit/Department:||Science > Environment, Earth and Ecosystems|
|Interdisciplinary Research Centre:||Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)|
|Depositing User:||Mike Widdowson|
|Date Deposited:||30 Apr 2009 14:47|
|Last Modified:||24 Nov 2012 21:42|
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