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Part 1 The processes of soil formation and the resulting soil materials: weathering and leaching new mineral formation and inheritance bioturbation rainwash aeolian processes soil creep. Part 2 The distribution of soil material: the pedological hierarchy the soils of a continental plate centre - Australia, Africa soils of other continental plate centres the soil materials of continental plate margins.
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Gerrard et al. (1996) studied this question.
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