Diapirism and the origin of high TiO2 mare glasses

Details Diapirism and the origin of high TiO2 mare glasses Diapirism and the origin of high TiO2 mare glasses

Nov 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991georl..18.2069h&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 18, Nov. 1991, p. 2069-2072.

Physics

25

Glass, Lunar Composition, Lunar Evolution, Lunar Maria, Magma, Titanium Oxides, Buoyancy, Ilmenite, Melting, Melts (Crystal Growth), Thermal Boundary Layer

Scientific paper

High TiO2 mare picritic glasses are derived from cumulate source regions that are only modestly endowed with ilmenite-enriched crystallization products. These sources are mobilized by the heat derived from the primitive interior and evolve into diapirs which rise adiabatically from depths in excess of 700 km. As these diapirs undergo pressure-release melting, they also stir in significant portions of the surrounding mantle.

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