Information - GMPV16 Emplacement of magma pulses and growth of magma bodies
Field and geochronological studies suggest that plutons grow by accretion of repeated, discrete pulses. Similarly, cycles of cooling and re-heating recorded by crystals in volcanic products indicate that new magma is periodically injected in magma chambers. Depending on their emplacement rate and on their ability to amalgamate, repeated magma injections can either rapidly solidify or build up an active magma chamber. Magma bodies evolution is related to the process that control the timescale and the spatial distribution of the successive injections and understanding how magma bodies grow has fundamental implications for the link between volcanism and plutonism. The objective of the session is to gather contributions from various investigation disciplines (field geology, structural geology, petrology, geochronology, modelling, etc) that would provide insights on mechanisms of plutons and magma chamber emplacement and growth.
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