Mars: Components of infrared spectra and the composition of the dust cloud

Hunt, Graham R.; Logan, Lloyd M.; Salisbury, John W.

doi:10.1016/0019-1035(73)90155-3

Cited by 92 publications

(30 citation statements)

References 12 publications

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“…Clay-sized phyllosilicates (clay minerals sensu stricto) and carbonates, if present on Mars, will provide information about current and former aqueous environments. Clay minerals have been suggested as components of the Martian surface material from chemical 4 and spectral analyses, 5,6 but the unique identification of these aqueous alteration minerals has not been confirmed on Mars. Carbonates have been postulated to be present on Mars in order to explain the loss of CO 2 in the atmosphere 7,8 and small amounts of carbonate have been detected in IR spectra of the Martian dust.…”

Section: Introductionmentioning

confidence: 99%

Characterization of minerals and biogeochemical markers on Mars: A Raman and IR spectroscopic study of montmorillonite

Bishop

Murad

2004

J Raman Spectroscopy

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Raman spectroscopy is likely to be one of a number of instruments deployed to Mars on future landed missions. The goals of these missions will include characterizing the mineralogy of the rocks and soils, in addition to determining if the planet may be or may have been habitable for life. The astrobiology questions are linked to understanding the aqueous and biogeochemical history of Mars. Clay minerals are studied here because if they are found on Mars they may provide information about the geochemistry of the primary rocks and the aqueous history of the planet. This study compares Raman and IR spectra of the SWy-1, STx-1 and SAz-1 montmorillonites. These samples contain admixtures of organic material, carbonate, amorphous silica and fine-grained quartz, which can all be detected using Raman spectroscopy. Less than 0.1 wt% C as organic material was detected in each of the samples through peaks associated with CC or CH bonds. Carbonate was detected in the Raman spectra for the sample containing 1.65 wt% CO 3 but not for 0.15 wt% CO 3 . Raman spectra exhibit unique bands near 200 and 700 cm −1 that are due to tetrahedral SiO 4 in layer silicates and vary depending on the mineral structure. Raman spectra of clay minerals also have unique metal-OH bending vibrations between 840 and 920 cm −1 that provide information about the octahedral cations present.

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Section: Introductionmentioning

confidence: 99%

Characterization of minerals and biogeochemical markers on Mars: A Raman and IR spectroscopic study of montmorillonite

Bishop

Murad

2004

J Raman Spectroscopy

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“…The first mineralogic-petrologic interpretations of the elemental analyses of Martian surface materials took into account unusual abundance patterns (including high contents of sulfur and chlorine), the finegrained nature of the soil and the soil's magnetic properties, as well as results of reflectance spectra measurements and earlier deductions about the mineralogic character of Martian dust clouds by Hunt et al (1973). It was concluded Toulmin et al, 1977) that overall the properties best matched a model of Martian soil consisting principally of clay alteration products (smectites, including nontronite) with admixed salts and magnetic iron oxides.…”

Section: (Ii) Earlier Interpretationsmentioning

confidence: 99%

On the original igneous source of Martian fines

Baird

Clark²

1981

Icarus

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“…The laboratory infrared spectra of the various materials were assembled into a spectral library, which then was compared with ground-based and balloon-borne infrared observations that the Branch conducted to infer the surface compositions of these objects (e.g. Hunt and Salisbury 1969;Hunt et al 1973;Chapman and Salisbury 1972).…”

Section: From Rockets To Satellitesmentioning

confidence: 99%

Infrared Sky Surveys

Price

2009

Space Sci Rev

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A retrospective is given on infrared sky surveys from Thomas Edison's proposal in the late 1870s to IRAS, the first sensitive mid-to far-infrared all-sky survey, and the mid-1990s experiments that filled in the IRAS deficiencies. The emerging technology for space-based surveys is highlighted, as is the prominent role the US Defense Department, particularly the Air Force, played in developing and applying detector and cryogenic sensor advances to early mid-infrared probe-rocket and satellite-based surveys. This technology was transitioned to the infrared astronomical community in relatively short order and was essential to the success of IRAS, COBE and ISO. Mention is made of several of the little known early observational programs that were superseded by more successful efforts.

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Mars: Components of infrared spectra and the composition of the dust cloud

Cited by 92 publications

References 12 publications

Characterization of minerals and biogeochemical markers on Mars: A Raman and IR spectroscopic study of montmorillonite

Characterization of minerals and biogeochemical markers on Mars: A Raman and IR spectroscopic study of montmorillonite

On the original igneous source of Martian fines

Infrared Sky Surveys

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