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Stirring effects on properties of Al goethite formed from ferrihydrite
U. Schwertmann and H. Stanjek
Stirring effects on properties of Al goethite formed from ferrihydrite
Clays and Clay Minerals (June 1998) 46 (3): 317-321
Stirring effects on properties of Al goethite formed from ferrihydrite
Clays and Clay Minerals (June 1998) 46 (3): 317-321
Index Terms/Descriptors
Abstract
Minerals in surface environments form in both turbulent and non-turbulent systems. This study compares the properties of Al goethite formed form ferrihydrite at 60 degrees C in 0.3 M KOH with and without mechanical stirring. Compared to the static system. stirring increased crystal order and needle thickness, decreased unit cell edge length a, but not b and c. reduced the separation between the 2 OH-bending vibrations, increased Al substitution and promoted hematite formation.
ISSN: 0009-8604
Coden: CLCMAB
Serial Title: Clays and Clay Minerals
Serial Volume: 46
Serial Issue: 3
Title: Stirring effects on properties of Al goethite formed from ferrihydrite
Affiliation: Technische Universitaet Muenchen, Lehrstuhl fuer Bodenkunde,
Freising-Weihenstephan,
Federal Republic of Germany
Pages: 317-321
Published: 199806
Text Language: English
Publisher: Clay Minerals Society,
Clarkson, NY,
United States
References: 25
Accession Number: 1998-070184
Categories: Geochemistry of rocks, soils, and sedimentsSedimentary petrology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus.
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute.
Update Code: 199824
