Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/91377
Type: Artigo de periódico
Title: Hydrothermal Formation Of Clay-carbonate Alteration Assemblages In The Nili Fossae Region Of Mars
Author: Brown A.J.
Hook S.J.
Baldridge A.M.
Crowley J.K.
Bridges N.T.
Thomson B.J.
Marion G.M.
de Souza Filho C.R.
Bishop J.L.
Abstract: The Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) has returned observations of the Nili Fossae region indicating the presence of Mg-carbonate in small (<10km sq2), relatively bright rock units that are commonly fractured (Ehlmann et al., 2008b). We have analyzed spectra from CRISM images and used co-located HiRISE images in order to further characterize these carbonate-bearing units. We applied absorption band mapping techniques to investigate a range of possible phyllosilicate and carbonate minerals that could be present in the Nili Fossae region. We also describe a clay-carbonate hydrothermal alteration mineral assemblage in the Archean Warrawoona Group of Western Australia that is a potential Earth analog to the Nili Fossae carbonate-bearing rock units. We discuss the geological and biological implications for hydrothermal processes on Noachian Mars. © 2010 Elsevier B.V.
Editor: 
Rights: fechado
Identifier DOI: 10.1016/j.epsl.2010.06.018
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-77956010013&partnerID=40&md5=1a06812ea7187c58807a4d83c29eb698
Date Issue: 2010
Appears in Collections:Unicamp - Artigos e Outros Documentos

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