Magma chamber dynamics and thermodynamics

摘要: Overview Magma chambers are continuous bodies of magma in the crust where accumulates and differentiates. Both geophysical geochemical techniques have illuminated many aspects since they were first proposed. In this chapter, we review these observations context heat mass transfer theory. This chapter reviews calculations from chamber to surrounding crust, also considers coupled stress fields that generated modified by presence magmatic systems. The fluid dynamics has received considerable attention over last several decades here ramifications convection chambers. Multiphase flow (melt + crystals bubbles) plays a particularly important role evolution large density differences between melt discrete phases such as bubbles crystals, resulting buoyancy shown be an efficient mechanism generate mixing Finally discuss integrative approaches geophysics geochemistry future directions research. Introduction compositional diversity melts reach surface Earth, eruptive style, largely determined through processing ascend sometimes stall crust. Most products intrusive suites been substantially their progenitor mantle magmas, either preferential removal crystal during fractionation, assimilation crustal melts, or combination processes (Daly, 1914; Anderson, 1976; Wyllie, 1977; Hildreth Moorbath, 1988; DePaolo et al. , 1992; Feeley 2002). Much magmas likely occurs spend most time: permanently temporarily stalled accumulation is fundamental genesis eruptions, background flux cannot explain voluminous outbursts at Earth. control ultimately better understanding may provide clues triggering eruptions.