منابع مشابه
We model the ascent and eruption of lunar mare basalt magmas with new data on crustal
48 We model the ascent and eruption of lunar mare basalt magmas with new data on crustal 49 thickness and density (GRAIL), magma properties, and surface topography, morphology and 50 structure (Lunar Reconnaissance Orbiter). GRAIL recently measured the broad spatial variation 51 of the bulk density structure of the crust of the Moon. Comparing this with the densities of lunar 52 basaltic and pi...
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We carried out viscosity measurements and sampling of a crystal suspension derived from alkali olivine basalt from the Matsuura district, SW Japan, at subliquidus temperatures from 1230 °C to 1140 °C under 1 atm with NNO oxygen buffered conditions. Viscosity increased from 31 to 1235 Pa s with a decrease in temperature from 1230 to 1140 °C. On cooling, olivine first appeared at 1210 °C, followe...
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This article introduces the free magmaM(X) constructed on a set X [6]. Then, we formalize some theorems aboutM(X): if f is a function from the set X to a magma N , the free magmaM(X) has a unique extension of f to a morphism ofM(X) into N and every magma is isomorphic to a magma generated by a set X under a set of relators on M(X). In doing it, the article defines the stable subset under the la...
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We give a completion theorem for ordered magmas (i.e. ordered algebras with monotone operations) in a general form. Particular instances of this theorem are already known, and new results follow. The semantics of programming languages is the motivation of such investigations. Key wordscomplete partial orders, semantics of programming languages. Introduction. When defining recursive functions by...
متن کاملRheology of bubble-bearing magmas
The rheology of bubble-bearing suspensions is investigated through a series of three-dimensional boundary integral calculations in which the effects of bubble deformation, volume fraction, and shear rate are considered. The behaviour of bubbles in viscous flows is characterized by the capillary number, Ca, the ratio of viscous shear stresses that promote deformation to surface tension stresses ...
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ژورنال
عنوان ژورنال: Nature
سال: 1989
ISSN: 0028-0836,1476-4687
DOI: 10.1038/342344a0