Perennial problems in the study of laterite: A review

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Abstract
There are perennial problems in the investigation of laterite. Many studies in Australia have assumed that laterite formed under seasonally dry humid tropical climatic conditions that resulted in intensive weathering processes during the Tertiary. It is believed that laterite formed as a uniform blanket over the landscape, so that present occurrences are erosional remnants of fossil laterite. Outside the humid tropics, laterite occurrences are considered as indicators of climatic change and/or continental drift. Many of these assumptions are open to alternative interpretations.