Laboratory spectroscopic detection of hydration in pristine lunar regolith

Matthew Richar Izawa, Edward A. Cloutis, Daniel M. Applin, Michael A. Craig, Paul Mann, Matthew Cuddy

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Reflectance spectroscopy of Apollo lunar soil samples curated in an air- and water-free, sealed environment since recovery and return to Earth has been carried out under water-, oxygen-, CO2- and organic-controlled conditions. Spectra of these pristine samples contain features near 3 μm wavelength similar to those observed from the lunar surface by the Chandrayaan-1 Moon Mineralogy Mapper (M3), Cassini Visual and Infrared Mapping Spectrometer (VIMS), and Deep Impact Extrasolar Planet Observation and Deep Impact Extended Investigation (EPOXI) High-Resolution Instrument (HRI) instruments. Spectral feature characteristics and inferred OH/H2O concentrations are within the range of those observed by spacecraft instruments. These findings confirm that the 3 μm feature from the lunar surface results from the presence of hydration in the form of bound OH and H2O. Implantation of solar wind H+ appears to be the most plausible formation mechanism for most of the observed lunar OH and H2O.

Original languageEnglish
Pages (from-to)157-164
Number of pages8
JournalEarth and Planetary Science Letters
Volume390
DOIs
Publication statusPublished - Mar 15 2014
Externally publishedYes

Fingerprint

lunar surface
regolith
hydration
Hydration
Spacecraft instruments
spacecraft instruments
Extrasolar planets
lunar soil
Solar wind
Mineralogy
Water
Moon
mineralogy
extrasolar planets
formation mechanism
moon
water
solar wind
Spectrometers
implantation

Keywords

  • Apollo samples
  • Lunar hydration
  • Lunar regolith
  • Reflectance spectroscopy

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geophysics
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science

Cite this

Laboratory spectroscopic detection of hydration in pristine lunar regolith. / Richar Izawa, Matthew; Cloutis, Edward A.; Applin, Daniel M.; Craig, Michael A.; Mann, Paul; Cuddy, Matthew.

In: Earth and Planetary Science Letters, Vol. 390, 15.03.2014, p. 157-164.

Research output: Contribution to journalArticle

Richar Izawa, Matthew ; Cloutis, Edward A. ; Applin, Daniel M. ; Craig, Michael A. ; Mann, Paul ; Cuddy, Matthew. / Laboratory spectroscopic detection of hydration in pristine lunar regolith. In: Earth and Planetary Science Letters. 2014 ; Vol. 390. pp. 157-164.
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