Magmatic differentiation in partially molten systems: Applications to the moon and the palisades sill

Details Magmatic differentiation in partially molten systems: Applications to the moon and the palisades sill Magmatic differentiation in partially molten systems: Applications to the moon and the palisades sill

Sep 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986phdt.........7s&link_type=abstract

Ph.D. Thesis California Univ., Los Angeles.

Other

Liquid-Solid Interfaces, Magnetic Permeability, Phase Diagrams, Phase Transformations, Separation, Compacting, Geochemistry, Lunar Mantle, Mathematical Models, Quantitative Analysis

Scientific paper

The primary mechanism by which igneous systems differentiate is through partitioning of elements between liquid and solid phases and the subsequent separation of those phases. Many physical processes that produce this type of differentiation are understood in only a qualitative manner, especially in systems that are mostly solid rather than liquid. This work quantitatively models differentiation in partially molten systems and compares the results to experimental data. Such comparisons provide quantitative constraints on the natural differentiation processes and in some cases provide estimates of physical parameters that operated in the natural systems. The first problem covered is the early global differentiation of the Moon. The other topic covered is the process of compaction of partially molten igneous cumulates driven by the density difference between the liquid and solid phases. A theoretical examination of the physical process of compaction is studied, and a detailed geochemical study of the Palisades Sill was performed. Comparisons between the results of the modeling and the observations on the sill are then used to constrain the differentiation process.

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