IR spectral characterization of some impact glasses from major terrestrial fields for remote sensing applications (original) (raw)

Abstract

ABSTRACT Tektites are amorphous glass samples that form during the quenching of molten rock resulted after a meteorite impact or thermonuclear detonations. The terrestrial tektites reflect the chemical composition of the rocks from which they derive, with an advanced volatile depletion. The most used volatile to define the origin from an impact process is water. Water in tektites is low, reflecting the high temperature at which the terrestrial tektites have been exposed [1,2]. A terrestrial glass sample with unknown origin (with strong tektite macroscopic and microscopic characteristics) was analyzed along with other two tektite samples from known terrestrial strewnfields. The measurements are intended as a possible mean to positively identify new tektite samples, as well as to serve as completion for spectral libraries that are used for the characterization of planetary surfaces in the UV-VIS-NIR (0.3 - 3.3 μm) solar reflection range (SR).

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