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Origin and Mineralogy Glacial and Interglacial Clays of Southern Norway

Published online by Cambridge University Press:  01 July 2024

I. Th. Rosenqvist
I. Th. Rosenqvist*
Affiliation:
Institute of Geology, University of Oslo, P.O. Box 1047, Blindern, Oslo 3, Norway
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Abstract

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The Numedal River basin (6000 km2) in central and east Norway contains 3 × 109 m3 of clayey material, corresponding to a clay loam sediment, which contains 2 million tons of absorbed rare earth elements.

The clay mineralogy varies systematically from the till clays to a marine facies. It is concluded that the phyllosilicates of the clay fraction and tills originated from phyllosilicate minerals of the crystalline bedrock through a degradation partly due to preQuaternary weathering which dissolved a great part of the rock-forming minerals.

Type
Research Article
Information
Clays and Clay Minerals , Volume 23 , Issue 2 , April 1975 , pp. 153 - 159
Copyright
Copyright © 1975, The Clay Minerals Society

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