Mathematics – Logic
Scientific paper
Apr 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981jgr....86.2971w&link_type=abstract
Journal of Geophysical Research, vol. 86, Apr. 10, 1981, p. 2971-3001. Research supported by the William F. Marlar Memorial Fou
Mathematics
Logic
265
Basalt, Earth Mantle, Lunar Geology, Magma, Selenology, Volcanoes, Chemical Composition, Earth Surface, Geochemistry, Lunar Rocks, Lunar Surface, Mineral Deposits, Planetary Crusts, Volatility, Emplacement, Geometry, Diagrams, Comparisons, Fragmentation, Geology, Particles, Deposition, Structure, Ejecta, Carbon Monoxide, Deposits, Thickness, Exsolution, Models, Melts, Liquids, Source Medium, Data, Lava Flows, Planets, Earth, Moon, Basalts, Magmas, Eruptions, Size, Physical Properties, Composition, Solubilit
Scientific paper
The ascent and emplacement of basaltic magma on the earth and moon is modeled by the application of geological and physical observations and constraints. Relatively simple mathematical models of the motion of gas/liquid mixtures are shown to be adequate in the treatment of basaltic eruptions, provided that allowance is made for the coalescence of gas bubbles and that realistic geological and petrochemical constraints are applied to the numerical values of variables. Because gas exsolution from magmas on the earth and moon commonly occur at depths of less than 2 km, it is generally convenient to consider separately the rise of bubble-free magmatic liquid at depth in a planetary crust and the more complex motions occurring near the surface with gas exsolution.
Head James W.
Wilson Leslie
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