Geochemical Evidence for the Formation of Soils by Interaction Between Guano and Volcanic Rocks, Rata Island, Fernando de Noronha (Pernambuco)

The phosphatic soils found in the northern part of the Rata island, in the Fernando de Noronha Archipelago, wereformed by reaction of bird guano with weathered mafi c rocks of the Quixaba Formation. Phosphate minerals identifi edinclude crandallite as a major constituent. The unique guano signature...

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Bibliographic Details
Main Authors: Sonia Maria Barros de Oliveira, Luiz Carlos Ruiz Pessenda, Suzy Eli Marques Gouveia, Deborah Inês Teixeira Fávaro, Marly Babinski
Format: Article
Language:English
Published: Universidade de São Paulo 2009-10-01
Series:Geologia USP. Série Científica
Subjects:
Online Access:http://ppegeo-local.igc.usp.br/pdf/guspsc/v9n3/01.pdf