Visible/near-infrared spectra and two-layer modeling of palagonite-coated basalts

Details Visible/near-infrared spectra and two-layer modeling of palagonite-coated basalts Visible/near-infrared spectra and two-layer modeling of palagonite-coated basalts

May 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001georl..28.2101j&link_type=abstract

Geophysical Research Letters, Volume 28, Issue 10, p. 2101-2104

Physics

17

Mineral Physics: Optical, Infrared, And Raman Spectroscopy, Planetology: Solid Surface Planets: Remote Sensing, Planetology: Solar System Objects: Mars

Scientific paper

Fine-grained dust coatings on Martian rocks and soils obscure underlying surfaces and hinder mineralogic interpretations of both remote sensing and in situ observations. We investigate laboratory visible/near-infrared spectra of various thickness of palagonite coatings on basalt substrates. We develop a two-layer Hapke scattering model incorporating porosity, grain size, and derived absorption coefficients of palagonite and basalt that reproduces the observed spectra only when the single scattering particle phase function is varied with wavelength.

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