Mid-infrared transmission spectra of crystalline and nanophase iron oxides/oxyhydroxides and implications for remote sensing of Mars

James Bell, T. L. Roush, R. V. Morris

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Ferric-iron-bearing materials play an important role in the interpretation of visible to near-IR Mars spectra, and they may play a similarly important role in the analysis of new mid-IR spacecraft spectral observations to be obtained over the next decade. The authors review existing data on mid-IR transmission spectra of ferric oxides/oxydroxides and present new transmission spectra for ferric-bearing materials spanning a wide range of mineralogy and crystallinity. These materials include 11 samples of well-crystallized ferric oxides (hematite, maghemite, and magnetite) and ferric oxyhydroxides (goethite, lepidocrocite). They also report the first transmission spectra for purely nanophase ferric oxide samples that have been shown to exhibit spectral similarities to Mars in the visible to near-IR and they compare these data to previous and new transmission spectra of terrestrial palagonites. -from Authors

Original languageEnglish (US)
Pages (from-to)5297-5307
Number of pages11
JournalJournal of Geophysical Research
Volume100
Issue numberE3
StatePublished - 1995
Externally publishedYes

Fingerprint

Infrared transmission
iron oxides
mars
iron oxide
Mars
remote sensing
Remote sensing
Crystalline materials
Bearings (structural)
oxide
oxides
lepidocrocite
maghemite
Ferrosoferric Oxide
mineralogy
hematite
crystallinity
goethite
Mineralogy
magnetite

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)
  • Environmental Science(all)

Cite this

Mid-infrared transmission spectra of crystalline and nanophase iron oxides/oxyhydroxides and implications for remote sensing of Mars. / Bell, James; Roush, T. L.; Morris, R. V.

In: Journal of Geophysical Research, Vol. 100, No. E3, 1995, p. 5297-5307.

Research output: Contribution to journalArticle

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