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Clays and Clay Minerals

, Volume 23, Issue 2, pp 153–159 | Cite as

Origin and Mineralogy Glacial and Interglacial Clays of Southern Norway

  • I. Th. Rosenqvist
Article

Abstract

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.

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Copyright information

© The Clay Minerals Society 1975

Authors and Affiliations

  • I. Th. Rosenqvist
    • 1
  1. 1.Institute of GeologyUniversity of OsloOslo 3Norway

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