About this Research Topic
During transport, a percolating melt or magma inevitably reacts with contacting rocks or magmatic mushes, resulting in processes that may be described as magma/melt-rock or magma/melt-mush interactions. Examples of these types of interactions include mantle metasomatism, mineral-melt reaction in the mantle, mantle or crustal assimilation of magma by wallrock partial melting or stoping, and thermal remobilization of preexisting mushy magma (rejuvenation of mush) by intruding high specific enthalpy magma. This spectrum of processes plays a major role in the composition, structure, thickness, and age of the lithosphere. These interactions also affect the asthenosphere since the melts formed in the mantle interact with rocks during ascent.
Different physical and chemical conditions (e.g., pressure, fO2, composition of magma, rock, or mush) provide fundamental controls on the nature of magma-rock-mush interaction. For example, the final rock composition may be influenced, in part, by the degree of equilibrium between magma/melt and minerals. Evidence for equilibrium/disequilibrium relationships are likely be preserved in the rock textures and mineral compositions. Energy and mass transfer are also critical controlling factors; for example, rock partial melting and associated contamination of magma are directly related to enthalpy produced during crystallization of a magmatic system and the ability of anatectic melt to be transported into a magma reservoir.
This Research Topic is devoted to documenting the kinetics and thermodynamics as well as the petrologic and geochemical consequences of magma-rock, melt-rock and melt-mush interactions. Detailed micro-scale and possible nano- to atom-scale investigations (e.g., natural studies and experimental studies) using theoretical, numerical, field-based and experimental approaches that address interactions between magmas, melts, mushes and rocks are welcome. Studies that combine these scales and approaches are particularly encouraged.
Different physical and chemical conditions (e.g., pressure, fO2, composition of magma, rock, or mush) provide fundamental controls on the nature of magma-rock-mush interaction. For example, the final rock composition may be influenced, in part, by the degree of equilibrium between magma/melt and minerals. Evidence for equilibrium/disequilibrium relationships are likely be preserved in the rock textures and mineral compositions. Energy and mass transfer are also critical controlling factors; for example, rock partial melting and associated contamination of magma are directly related to enthalpy produced during crystallization of a magmatic system and the ability of anatectic melt to be transported into a magma reservoir.
This Research Topic is devoted to documenting the kinetics and thermodynamics as well as the petrologic and geochemical consequences of magma-rock, melt-rock and melt-mush interactions. Detailed micro-scale and possible nano- to atom-scale investigations (e.g., natural studies and experimental studies) using theoretical, numerical, field-based and experimental approaches that address interactions between magmas, melts, mushes and rocks are welcome. Studies that combine these scales and approaches are particularly encouraged.
Keywords: #CollectionSeries, magma rock interactions, magma mush, mineral dissolution, partial melting, metasomatism, asthenosphere
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