Fine silt and clay mineralogical changes of a soil chronosequence in the Langtang valley (Central Nepal)

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autorinnen und Autoren: Bäumler R, Zech W, Madhikermi DP
Zeitschrift: Journal of Plant Nutrition and Soil Science
Verlag: Wiley-VCH Verlag
Jahr der Veröffentlichung: 1997
Heftnummer: 166
Seitenbereich: 413-421
ISSN: 1436-8730
eISSN: 1522-2624
Sprache: Englisch


Abstract


Chemical and raineralogical properties of a soil chronosequence in the high mountain zone between 3857 m and 4120 m a.s.l. in Central Nepal (Langtang valley) are presented. The soils have been developed in moraine deposits which consist of acid gneisses. They were classified as Entisols, and Spodosols. XRD analyses of the clay and fine silt fraction show increasing changes with distance from the recent Lirung glacier, depending on the time of deposition, resp. soil age. Alteration of illite to interstratified minerals and to hydroxy-Al interlayered minerals or pedogenic chlorite with increasing soil development could be observed. The interstratified minerals could be identified as random and regular illite-interlayered vermiculite mixed-layer minerals. Intensification of the X-ray signals of the fine silt fraction is given compared to the clay. With increasing soil development differences between the clay and fine silt fraction seem to increase. Indications are given of interstratification of the mica-pedogenic chlorite and chlorite-interlayered vermiculite type in the more intensively weathered soils. © VCH Verlagsgesellschaft mbH, 1997.



FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Bäumler, Rupert Prof. Dr.
Professur für Geographie


Zitierweisen

APA:
Bäumler, R., Zech, W., & Madhikermi, D.P. (1997). Fine silt and clay mineralogical changes of a soil chronosequence in the Langtang valley (Central Nepal). Journal of Plant Nutrition and Soil Science, 166, 413-421.

MLA:
Bäumler, Rupert, Wolfgang Zech, and Dhruba P. Madhikermi. "Fine silt and clay mineralogical changes of a soil chronosequence in the Langtang valley (Central Nepal)." Journal of Plant Nutrition and Soil Science 166 (1997): 413-421.

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