(Article of periodic en Anglais - 1992)

Document title

Interdependence of Mn, Fe, and clay mineral formation on Groote Eylandt, Australia: a model for modern and ancient weathering environments

published at : Biomineralization processes of iron and manganese. Modern and ancient environments

Authors(s) and Affiliation(s)



The genesis of supergene products in the sedimentary Mn deposits on Groote Eylandt is the subject of detailed investigations. Among the many geochemical and biological mechanisms which may have influenced the mobilization or precipitation of ores and gangue minerals in these deposits a redox reaction between divalent iron and tetravalent manganese appears to be the most important process in the mobilization of Mn. Successively, the formation of kaolinite leads to the dissolution of the present iron minerals which, in turn, can be replaced by clay. Operation of these processes depends on the seasonal availability of groundwater


Thematical fascicle

published at : Catena. Supplement / ISSN 0722-0723

Editor : Catena-Verlag Rohdenburg, Cremlingen - ALLEMAGNE (1982)

Millesime : 1992, no 21 [pp. 371-397]

Bibliographic references : 110 réf.




Laboratoire INTERGEO - Paris

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 1994.
Refdoc record number (ud4) : 6443069 : Permanent link - XML version
Powered by Pxxo