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Reflectance Spectroscopy of Palagonites, Aluminous Phyllosilicates and Ferric Oxides as Analog MAterials for Martian Bright Soil

Arnold, G. (1997) Reflectance Spectroscopy of Palagonites, Aluminous Phyllosilicates and Ferric Oxides as Analog MAterials for Martian Bright Soil. EGS XXII General Assembly, Vienna, Austria, 21-25 April 1997.

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Abstract

Visible and near infrared reflectance spectra of mixtures containing Hawaiian palagonitic soils, aluminous phyllosilicates and ferric oxides have been studied in order to evaluate the spectral properties of bright regions on Mars. Reflectance spectra of bright Martian soils exhibit an absorption band near 2.2 muem indicating a small content of crystalline aluminous clays. In order to simulate the appearance of the 2.2 muem band, diffuse reflectance spectra of mixtures with various wt-% of the components were measured. The 2.2 muem absorption band is discernible in these ternary mixtures with a depth of 1% in spectral contrast if the content of phyllosilicates increases up to 10-20 wt-%. These spectralanalyses imply that the presence of comparable concentrations of crystalline aluminous clays can not be excluded in the bright regionsof Mars.

Document Type:Conference or Workshop Item (Speech)
Additional Information: LIDO-Berichtsjahr=1997,
Title:Reflectance Spectroscopy of Palagonites, Aluminous Phyllosilicates and Ferric Oxides as Analog MAterials for Martian Bright Soil
Authors:
AuthorsInstitution or Email of Authors
Arnold, G.UNSPECIFIED
Date:1997
Status:Published
Keywords:Mars Analog Material, VIS-IR-Spectroscopy
Event Title:EGS XXII General Assembly, Vienna, Austria, 21-25 April 1997
HGF - Research field:UNSPECIFIED
HGF - Program:Space (old)
HGF - Program Themes:W EW - Erforschung des Weltraums
DLR - Research area:UNSPECIFIED
DLR - Program:W EW - Erforschung des Weltraums
DLR - Research theme (Project):UNSPECIFIED
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Institut für Planetenerkundung
Deposited By: elib DLR-Beauftragter
Deposited On:02 Apr 2006
Last Modified:27 Apr 2009 09:51

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