Ferruginous concretions around root channels in clay and fine sand deposits

Spherically layered ferruginous concretions formed in soils in Finland are described. The cementing iron-rich material is in an amorphic state and binds the loose detrital mineral grains of quartz, feldspars, amphiboles, etc. Electron microprobe analyses show that iron and manganese are present as c...

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Bibliographic Details
Main Authors: P. Alhonen, T. Koljonen, P. Lahermo, R. Uusinoka
Format: Article
Language:English
Published: Geological Society of Finland 1975-12-01
Series:Bulletin of the Geological Society of Finland
Online Access:http://www.geologinenseura.fi/bulletin/Volume47/sgs_bt_047_pages_175_181.pdf