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Contribution to genesis of palaeosols (Almagres) on the Canary Islands (Spain) by thin section technique

, : Contribution to genesis of palaeosols (Almagres) on the Canary Islands (Spain) by thin section technique. Anales de Edafologia y Agrobiologia 46(5-6): 667-685

In thin section, "almagre" is red coloured with transmitted and oblique incident light. A pedogenic process influenced by heat leads to the formation of haematite producing a ferruginous impregnation of the micromass, the process being associated to a fairly intense ferruginisation of lapilli fragments. Pressure and temperature compact the original soil, the porosity depending on the type of microstructure.

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