Reference : Karst in granitic rocks, South Cameroon: cave genesis and silica and taranakite speleoth...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Earth sciences & physical geography
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http://hdl.handle.net/2268/684
Karst in granitic rocks, South Cameroon: cave genesis and silica and taranakite speleothems
English
Willems, Luc [Université de Liège - ULg > > Pétrologie sédimentaire >]
Compère, Philippe mailto [Université de Liège - ULg > Département des sciences et gestion de l'environnement > Département des sciences et gestion de l'environnement >]
Hatert, Frédéric mailto [Université de Liège - ULg > Département de géologie > Minéralogie et cristallochimie >]
Pouclet, André [> > > >]
Vicat, Jean-Paul [> > > >]
Ek, Camille mailto [Université de Liège - ULg > Services généraux (Faculté des sciences) > Relations académiques et scientifiques (Sciences) >]
Boulvain, Frédéric mailto [Université de Liège - ULg > Département de géologie > Pétrologie sédimentaire >]
Oct-2002
Terra Nova
Blackwell Publishing Ltd
14
5
355-362
Yes
International
0954-4879
Oxford
United Kingdom
[en] Karst ; granit ; taranakite ; opal ; cave genesis ; speleothem
[en] A cave in granitic rocks was studied in Mezesse, South Cameroon. Coralloid speleothems, draperies and dissolution traces on the cave walls attest to its truly karstic nature. The speleothems consist of microlayers of opal and taranakite (K,NH4)Al-3(PO4)(3)(OH).9H(2)O. They indicate a significant mobilization of silica, Al and K from granite during the formation of the cave. Identification of silicified bacteria in the speleothems layers suggests a possible role of these micro-organisms in silica deposition. The presence of taranakite and of silicified organic remains within the speleothems lead to a better understanding of the genesis of the cave.
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/684
also: http://hdl.handle.net/2268/77105 ; http://hdl.handle.net/2268/96885

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