Diffusion chronometry and the timescales of magmatic processes
Volcanic eruptions can represent major societal hazards. Placing tighter bounds on the
timescales of magmatic processes that precede eruptions is, therefore, important for volcano …
timescales of magmatic processes that precede eruptions is, therefore, important for volcano …
Calderas and magma reservoirs
KV Cashman, G Giordano - Journal of Volcanology and Geothermal …, 2014 - Elsevier
Large caldera-forming eruptions have long been a focus of both petrological and
volcanological studies; petrologists have used the eruptive products to probe conditions of …
volcanological studies; petrologists have used the eruptive products to probe conditions of …
No single model for supersized eruptions and their magma bodies
Supereruptions are the largest explosive volcanic eruptions on Earth. They generate
catastrophic, widespread ash-fall blankets and voluminous ignimbrites, with accompanying …
catastrophic, widespread ash-fall blankets and voluminous ignimbrites, with accompanying …
Conditions during the formation of granitic magmas by crustal melting–hot or cold; drenched, damp or dry?
Granitic magmas extracted from crustal sources can form over a wide variety of P, T and aH
2 O conditions. Both fluid-present and effectively fluid-absent conditions can yield granitic …
2 O conditions. Both fluid-present and effectively fluid-absent conditions can yield granitic …
New constraints on Ti diffusion in quartz and the priming of silicic volcanic eruptions
Titanium diffusion profiles in quartz crystals are widely applied to constrain the duration of
magmatic processes. However, experimentally determined Ti diffusion coefficients in quartz …
magmatic processes. However, experimentally determined Ti diffusion coefficients in quartz …
From mush to eruption in centuries: assembly of the super-sized Oruanui magma body
ASR Allan, DJ Morgan, CJN Wilson… - Contributions to Mineralogy …, 2013 - Springer
The magmatic systems that give rise to voluminous crystal-poor rhyolite magma bodies can
be considered to operate on two contrasting timescales: Those governed by longer-term …
be considered to operate on two contrasting timescales: Those governed by longer-term …
Timescales of mixing and mobilisation in the Bishop Tuff magma body: perspectives from diffusion chronometry
KJ Chamberlain, DJ Morgan, CJN Wilson - Contributions to Mineralogy …, 2014 - Springer
We present two-feldspar thermometry and diffusion chronometry from sanidine,
orthopyroxene and quartz from multiple samples of the Bishop Tuff, California, to constrain …
orthopyroxene and quartz from multiple samples of the Bishop Tuff, California, to constrain …
Age of the Lava Creek supereruption and magma chamber assembly at Yellowstone based on 40Ar/39Ar and U‐Pb dating of sanidine and zircon crystals
NE Matthews, JA Vazquez… - Geochemistry …, 2015 - Wiley Online Library
The last supereruption from the Yellowstone Plateau formed Yellowstone caldera and
ejected the> 1000 km3 of rhyolite that composes the Lava Creek Tuff. Tephra from the Lava …
ejected the> 1000 km3 of rhyolite that composes the Lava Creek Tuff. Tephra from the Lava …
Magma plumbing beneath collapse caldera volcanic systems
Advancing our knowledge of caldera volcanoes enables better assessment of hazard and
more efficient harnessing of resources. In this paper we review developments in concepts of …
more efficient harnessing of resources. In this paper we review developments in concepts of …
Characterisation of a natural quartz crystal as a reference material for microanalytical determination of Ti, Al, Li, Fe, Mn, Ga and Ge
A natural smoky quartz crystal from S handong province, C hina, was characterised by laser
ablation ICP‐MS, electron probe microanalysis (EPMA) and solution ICP‐MS to determine …
ablation ICP‐MS, electron probe microanalysis (EPMA) and solution ICP‐MS to determine …