Clay minerals in the weathering profile of a Quartz-Muscovite Schist in the Seremban area Negeri Sembilan

J.K Raj, . Clay minerals in the weathering profile of a Quartz-Muscovite Schist in the Seremban area Negeri Sembilan. pp. 129-136. ISSN 0126-6128

X-ray diffractograms show that randomly interstratified illite-montmorillonite and kaolinite are the clay minerals present in the upper morphological horizons of the weathering profile while illite is the only clay mineral present in the lowest morphological horizon. In the intermediate morphological horizons the diffractograms show that kaolinite illite and randomly interstratified illite-montmorillonite are the clay minerals present. Increasing amounts of randomly interstratified illite-montmorillonite and kaolinite up the weathering profile and a corresponding decrease of illite reflect increasing effects of weathering processes; disaggregation and disintegration of muscovites and seriates within the original bedrock material initially resulting in illite followed by development of the randomly interstratified illite- montmorillonite and kaolinite through leaching of the illites.

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Abstract

X-ray diffractograms show that randomly interstratified illite-montmorillonite and kaolinite are the clay minerals present in the upper morphological horizons of the weathering profile while illite is the only clay mineral present in the lowest morphological horizon. In the intermediate morphological horizons the diffractograms show that kaolinite illite and randomly interstratified illite-montmorillonite are the clay minerals present. Increasing amounts of randomly interstratified illite-montmorillonite and kaolinite up the weathering profile and a corresponding decrease of illite reflect increasing effects of weathering processes; disaggregation and disintegration of muscovites and seriates within the original bedrock material initially resulting in illite followed by development of the randomly interstratified illite- montmorillonite and kaolinite through leaching of the illites.

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Item Type:	Article
AGROVOC Term:	Clay minerals
AGROVOC Term:	Kaolinite
AGROVOC Term:	morphology
AGROVOC Term:	Sampling
AGROVOC Term:	Moisture content
AGROVOC Term:	Mineral content
AGROVOC Term:	Leaching
AGROVOC Term:	Illites
Geographical Term:	Malaysia
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	27 Apr 2025 23:31
URI:	http://webagris.upm.edu.my/id/eprint/22764

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