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Mineral phases and processes within green peloids from two Recent deposits near the Congo River Mouth
1988
Clay minerals
In the Recent sediments of the Congo River estuary, the green Fe-bearing peloids containing 7 Å phases are nearer to the river mouth than the 10 Å phyllosilicates. Measurements of d 060 for 7 Å minerals in various density fractions indicated a progressive transformation of kaolinite into trioctahedral 1:1 phyllosilicates in the zone with a high sedimentation rate. Projection of the chemical composition from the approximate crystallochemical formula on to a classification field confirmed the
doi:10.1180/claymin.1988.023.4.11
fatcat:6274n57ourd63i2qmurrpnejza