3-D variations of water content in an indochinite

Details 3-D variations of water content in an indochinite 3-D variations of water content in an indochinite

Mar 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997lpi....28.1017n&link_type=abstract

Conference Paper, 28th Annual Lunar and Planetary Science Conference, p. 017.

Other

Tektites, Glass, Water, Silicon Dioxide

Scientific paper

Tektites are shocked natural glasses that appear in several forms, including layered, blocky Muong Nong types, aerodynamically shaped flanges, and splash forms. They frequently contain lechatelierites, vesicles, and flow lines, probably indicating movement within the melt. Water contents in tektites are very low, lower than the one atmosphere solubility of water in glasses. At such low concentrations, the water is present as OH, which diffuses very slowly in silica-rich liquids and glasses. Variations in tektite water contents were, therefore, not diffusively modified to any great extent, given the 110 C/sec cooling rates. What, then, causes almost 3-fold variations in the water contents of these otherwise fairly homogeneous glasses (with respect to major elements)?

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