Single agglutinates: A comparative study of compositions of agglutinitic glass, whole-grain, bulk soil, and FMR

Details Single agglutinates: A comparative study of compositions of agglutinitic glass, whole-grain, bulk soil, and FMR Single agglutinates: A comparative study of compositions of agglutinitic glass, whole-grain, bulk soil, and FMR

Mar 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994lpi....25...71b&link_type=abstract

In Lunar and Planetary Inst., The Twenty-Fifth Lunar and Planetary Science Conference. Part 1: A-G p 71-72 (SEE N94-35395 11-91)

Computer Science

Agglutination, Chemical Composition, Glass, Impact Melts, Lunar Composition, Lunar Soil, Microanalysis, Aluminum Oxides, Calcium Oxides, Iron Oxides, Magnesium Oxides, Mineralogy, Silicon Dioxide

Scientific paper

Previous workers on single agglutinates have variously interpreted the composition of agglutinitic glass to represent impact melts of (1) bulk soil, (2) mixed components in finer sizes, and (3) microtargets. Separately, Papike has argued in favor of fusion of the finest fraction of bulk soils. Thirty-four single agglutinates were hand-picked from the mature Apollo 16 soil 61181 (Is/FeO = 82) and the FMR and chemical composition (INAA for Fe, Sc, Sm, Co, Ni, and Cr) of each agglutinate particle were measured. Thirteen of these single agglutinates were selected for electron beam microanalysis and imaging. Less than 1 micron spots were analyzed (for Na, Mg, Al, Si, P, S, K, Ca, Ti, Cr, Mn, Fe, Ni, and Ba) on pure glassy areas (approximately ten in each particle) selected on the basis of optical and BSE images (avoiding all clasts and inclusions) with an electron microprobe to obtain average glass compositions of each single agglutinate.

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