Cumulate recycling in igneous systems: the volcanic record
Magmatic evolution creates crystal cumulates. In the current paradigm for the genesis of
evolved magmas, cumulate crystal mushes dominate trans-crustal magma systems that feed …
evolved magmas, cumulate crystal mushes dominate trans-crustal magma systems that feed …
[HTML][HTML] Magma reservoir evolution during the build up to and recovery from caldera-forming eruptions–a generalizable model?
Silicic calderas globally tend to record a cyclic magmatic, structural, and eruptive
evolutionary progression. Some calderas are polycyclic, involving multiple catastrophic …
evolutionary progression. Some calderas are polycyclic, involving multiple catastrophic …
Protracted near-solidus storage and pre-eruptive rejuvenation of large magma reservoirs
Building super-eruptive magma reservoirs in the cold, upper parts of Earth's crust requires a
significant influx of magma over an extended period, sufficient to allow the magma to …
significant influx of magma over an extended period, sufficient to allow the magma to …
Melt segregation from silicic crystal mushes: a critical appraisal of possible mechanisms and their microstructural record
MB Holness - Contributions to Mineralogy and Petrology, 2018 - Springer
One of the outstanding problems in understanding the behavior of intermediate-to-silicic
magmatic systems is the mechanism (s) by which large volumes of crystal-poor rhyolite can …
magmatic systems is the mechanism (s) by which large volumes of crystal-poor rhyolite can …
Timescales and mechanisms of crystal-mush rejuvenation and melt extraction recorded in Permian plutonic and volcanic rocks of the Sesia Magmatic System …
L Tavazzani, S Peres, S Sinigoi, G Demarchi… - Journal of …, 2020 - academic.oup.com
Silicic calderas can evacuate 100 to> 1000 km3 of rhyolitic products in a matter of days to
months, leading to questions on pre-eruptive melt generation and accumulation. Whereas …
months, leading to questions on pre-eruptive melt generation and accumulation. Whereas …
Timescales and thermal evolution of large silicic magma reservoirs during an ignimbrite flare-up: perspectives from zircon
Abstract Four voluminous ignimbrites (150–500 km 3) erupted in rapid succession at 27 Ma
in the central San Juan caldera cluster, Colorado. To reconstruct the timescales and thermal …
in the central San Juan caldera cluster, Colorado. To reconstruct the timescales and thermal …
Decrypting magma mixing in igneous systems
D Morgavi, M Laumonier… - … in Mineralogy and …, 2022 - pubs.geoscienceworld.org
This chapter is intended to give an overview on the fundamental concepts behind the
processes of magma mixing, broadly considering interactions between different magmas …
processes of magma mixing, broadly considering interactions between different magmas …
Architecture of a super-sized magma chamber and remobilization of its basal cumulate (Peach Spring Tuff, USA)
Using a combination of petrological and geochemical approaches, we investigate processes
prior to and during eruption of the Miocene supereruption of the Peach Spring Tuff (PST; …
prior to and during eruption of the Miocene supereruption of the Peach Spring Tuff (PST; …
Tracking crystal-melt segregation and magma recharge using zircon trace element data
Abstract The Cretaceous Yunshan caldera complex in SE China consists of an unusual
coexisting assemblage of peraluminous and peralkaline rhyolites and a resurgent intra …
coexisting assemblage of peraluminous and peralkaline rhyolites and a resurgent intra …
Magmatic processes at La Soufrière de Guadeloupe: Insights from crystal studies and diffusion timescales for eruption onset
Signals of volcanic unrest do not usually provide insights into the timing, size and style of
future eruptions, but detailed analysis of past eruptions may uncover patterns that can be …
future eruptions, but detailed analysis of past eruptions may uncover patterns that can be …