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Halloysite in Argentinian deposits: origin and textural constraints
2012
Clay minerals
In Argentina, the only halloysite deposits found so far are located in the southwest of the province of Rio Negro. The areas are named Mamil Choique and Buitrera, separated by 50 km in a W–E direction. The deposits are located in pyroclastic rocks, rhyolitic tuffs and ignimbrites. The aim of this paper is to determine the origin of the alteration, any relationship between the processes in Mamil Choique and Buitrera, and the factors which controlled the halloysite formation. The work was based
doi:10.1180/claymin.2012.047.3.04
fatcat:2rumwbvkejcx5gemyqvb5hutz4