Item
Mateu i Figueras, Glòria
Barceló i Vidal, Carles |
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Universitat de Girona. Departament d’Informàtica i Matemàtica Aplicada | |
Kolb, Christopher
Martín Fernández, Josep Antoni Abart, Rainer Lammer, Helmut Thió i Fernández de Henestrosa, Santiago Pawlowsky-Glahn, Vera |
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2005 October | |
The chemical composition of sediments and rocks, as well as their distribution at the
Martian surface, represent a long term archive of processes, which have formed the
planetary surface. A survey of chemical compositions by means of Compositional Data
Analysis represents a valuable tool to extract direct evidence for weathering processes
and allows to quantify weathering and sedimentation rates. clr-biplot techniques are
applied for visualization of chemical relationships across the surface (“chemical maps”).
The variability among individual suites of data is further analyzed by means of clr-PCA,
in order to extract chemical alteration vectors between fresh rocks and their crusts and
for an assessment of different source reservoirs accessible to soil formation. Both
techniques are applied to elucidate the influence of remote weathering by combined
analysis of several soil forming branches. Vector analysis in the Simplex provides the
opportunity to study atmosphere surface interactions, including the role and
composition of volcanic gases Geologische Vereinigung; Institut d’Estadística de Catalunya; International Association for Mathematical Geology; Patronat de l’Escola Politècnica Superior de la Universitat de Girona; Fundació privada: Girona, Universitat i Futur; Càtedra Lluís Santaló d’Aplicacions de la Matemàtica; Consell Social de la Universitat de Girona; Ministerio de Ciencia i Tecnología.cat |
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application/pdf | |
Kolb, C. et al. ’The chemical variability at the surface of Mars: implications for exogenic processes’ a CODAWORK’05. Girona: La Universitat, 2005 [consulta: 12 maig 2008]. Necessita Adobe Acrobat. Disponible a Internet a: http://hdl.handle.net/10256/705 | |
84-8458-222-1 | |
http://hdl.handle.net/10256/705 | |
eng | |
Universitat de Girona. Departament d’Informàtica i Matemàtica Aplicada | |
Tots els drets reservats | |
Sedimentació | |
The chemical variability at the surface of Mars: implications for exogenic processes | |
info:eu-repo/semantics/conferenceObject | |
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