A comparison of the visible and near infrared reflectance of hydrovolcanic palagonite tuffs and Martian weathered soils

Details A comparison of the visible and near infrared reflectance of hydrovolcanic palagonite tuffs and Martian weathered soils A comparison of the visible and near infrared reflectance of hydrovolcanic palagonite tuffs and Martian weathered soils

Mar 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993lpi....24..465f&link_type=abstract

In Lunar and Planetary Inst., Twenty-fourth Lunar and Planetary Science Conference. Part 1: A-F p 465-466 (SEE N94-12015 01-91)

Astronomy and Astrophysics

Astronomy

Earth Surface, Infrared Spectra, Mars (Planet), Mars Surface, Near Infrared Radiation, Soils, Spectral Reflectance, Terrestrial Radiation, Volcanology, Astronomical Spectroscopy, Cones (Volcanoes), Weathering

Scientific paper

The visible and near infrared reflectance of Martian weathered soils, abundant in the bright regions, have been shown to resemble certain examples of the X-ray amorphous mineraloid palagonite. To date, most comparisons between terrestrial palagonites and Martian telescopic spectra have been done using palagonites that were formed under ambient semi-arid weathering conditions on Hawaiian volcanoes such as Mauna Kea. Here we examine palagonites associated with the tephra deposits that make up tuff rings and tuff cones. Tuff rings and tuff cones result from hydrovolcanic activity, defined as the interaction of magmas (in this instance, of basaltic composition) with surface or near-surface water. Tuff rings and tuff cones can contain variable amounts of country rock and juvenile crystals, but their primary constituent is fine grained sideromelane (basaltic glass). Sideromelane alters to palagonite. Unlike the aforementioned Hawaiian palagonites, the alteration of sideromelane to palagonite seems to occur relatively rapidly in tuff cones, on the order of days to months. In comparing the spectra of hydrovolcanically produced palagonites with telescopic spectra of Mars, one is struck by their similarity in the VNIR and dissimilarity in the SWIR.

Affiliated with

Also associated with

No associations

Rating

A comparison of the visible and near infrared reflectance of hydrovolcanic palagonite tuffs and Martian weathered soils does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A comparison of the visible and near infrared reflectance of hydrovolcanic palagonite tuffs and Martian weathered soils, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A comparison of the visible and near infrared reflectance of hydrovolcanic palagonite tuffs and Martian weathered soils will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1448211