Rhyolite-MELTS: a Modified Calibration of MELTS Optimized for Silica-rich, Fluid-bearing Magmatic Systems

  • Heath E
  • Turner S
  • Macdonald R
 et al. 
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Abstract

Plutons have long been viewed as crystallized remnants of large
magma reservoirs, a concept now challenged by high-precision geochronological
data coupled with thermal models. Similarly, the classical
view of silicic eruptions fed by long-lived magma reservoirs that
slowly differentiate between mafic recharges is being questioned by
petrological and geophysical studies. In both cases, a key and yet
unresolved issue is the rate of magma transfer in the crust. Here, we
use thermal analysis of magma transport to calculate the minimum
rate of magma transfer through dikes. We find that unless the crust
is exceptionally hot, the recharge of magma reservoirs requires a
magma supply rate of at least ∼0.01 km3/yr, much higher than the
long-term growth rate of plutons, which demonstrates unequivocally
that igneous bodies must grow incrementally. This analysis argues
also that magma reservoirs are short lived and erupt rapidly after
being recharged by already-differentiated magma. These findings
have significant implications for the monitoring of dormant volcanic
systems and our ability to interpret geodetic surface signals related to
incipient eruptions.

Author-supplied keywords

  • 2001 eruption
  • 230Th
  • 230Th dating
  • 234U
  • 238U-206Pb
  • 3630 mineralogy and petrology
  • 3640 mineralogy and petrology
  • 3655 mineralogy and petrology
  • 3939
  • 40Ar/39Ar
  • Accuracy
  • Adiabatic ascent
  • Adolescence
  • Adolescencia
  • Adolescent
  • Adolescent Behavior
  • Adolescent Behavior: psychology
  • Adult
  • Agresiones al cuerpo
  • Analysis techniques
  • Anorthosite
  • Archaean
  • Archaean-Proterozoic boundary
  • Archean
  • Attachment to the body
  • Attaque au corps
  • Autolesiones deliberadas
  • Automutilation délibérée
  • Barium
  • Bishop Tuff
  • BishopTuff
  • Body Piercing
  • Body Piercing: psychology
  • Body Piercing: statistics & numerical data
  • Body image
  • Bulai pluton
  • CO2
  • COMPRESSIBILITY
  • CSDs
  • CUERPO
  • Caldera
  • Chemical separation
  • Chile
  • Chile: epidemiology
  • Cosmetic Techniques
  • Crustal evolution
  • Crustal growth
  • Crystallization
  • Crystallization ages
  • Curie
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  • Delamination
  • Deliberate self-harm
  • Diffusion
  • East China
  • Ellipsoidal enclaves
  • Epidemiologic Methods
  • Error
  • Evolution of earth
  • FLOTATION
  • Fabrics
  • Fangshan adakitic pluton
  • Felsic large igneous province
  • Female
  • Fisken??sset Complex
  • Fractionation
  • Geochemical modelling
  • Geochemistry
  • Geochemistry & Geophysics
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  • Grey gneiss
  • HIGH-PRESSURE
  • Half-life
  • History
  • Holmes
  • Humans
  • Ignimbrite
  • Image corporelle
  • Imagen corporal
  • Intercalibration
  • Intraplate alkalic volcanism
  • Ion probe data
  • Island arcs
  • Isotope composition
  • Isotope zoning
  • JUVENTUD
  • KOMATIITE
  • Kilauea
  • LA Sample chamber
  • LA-ICP-MS
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  • Lithium
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  • Lithospheric mantle
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  • MODIFICACIONES CORPORALES
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  • Mantle upwelling
  • Method
  • Motivation
  • Mount St. Helens
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  • Multi-stage plumbing system
  • Multiplier calibration
  • Mush model
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  • Nuclear reaction analysis
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  • Radium Phlogopite LA-ICP-MS Partition coefficients
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  • Self Mutilation: physiopathology
  • Self Mutilation: ultrasonography
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  • Silicate glasses
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  • Tattooing: psychology
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  • Taupo volcano
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  • Thickened crust
  • Ti-in-zircon thermometry
  • Timber Mountain tuff
  • Titanium
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  • Tongue
  • Tongue: injuries
  • Tongue: physiopathology
  • Tongue: ultrasonography
  • Trace element
  • Trace elements
  • Trachyte
  • U series disequilibria
  • U-Pb
  • U-Th-Pa-Ra
  • U-Th-Ra isotopes
  • U-series
  • ULTRABASIC SILICATE LIQUID
  • Uncertainty
  • Uranium-series disequilibria
  • Vapor transport
  • Volatiles
  • Whole-rock chemistry
  • Yucca Mountain
  • Zircon
  • a radiogenic w-isotopic composition
  • abstract the earth has
  • accretion
  • aesthetics
  • and on cor-
  • anorthite
  • anorthoclase
  • arrhenius relation
  • as none were found
  • autoinjury and health
  • background
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  • body
  • calc-alkaline granitoids
  • caldera
  • canary islands
  • chinyero
  • chronometer
  • co 2
  • compared to chon-
  • complications did not
  • complications from inserting a
  • composition
  • constitución del yo
  • control postural- estabilización- vías
  • convective stirring
  • core formation
  • corporal modifications
  • corps
  • crystal mush
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  • crystal size distribution
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  • crystallinity
  • crystallization
  • csds
  • cuba
  • cuerpo
  • culturas juveniles
  • cultures juvéniles
  • d u c t
  • demonstrating that it formed
  • di ff erentiation
  • diffusion
  • disequilibrium
  • doi:10.
  • doi:10.1029/2004RG000154
  • doi:10.1029/2007RG000241
  • drites
  • dynamics
  • epidural
  • esthétique
  • estética
  • exert a major con-
  • experimental mineralogy and petrology
  • find any reports of
  • fragility
  • glass transition
  • growth rate
  • half-life 9 myr
  • helens
  • helens á volatiles á
  • high resolution images
  • homogenization
  • http://dx.doi.org/10.1029/2004RG000154
  • http://dx.doi.org/10.1029/2007RG000241
  • http://dx.doi.org/10.1029/JB090iB13p11121
  • i n t ro
  • i o n
  • if neuraxial anes-
  • igneous petrology
  • ing with neuraxial anesthesia
  • intraplate alkalic volcanism
  • isochrons
  • isotope composition
  • isotopes
  • jeunesse
  • juvenile cultures
  • juventud
  • latent heat buffering
  • lesser antilles
  • lithium
  • magma
  • magma ascent
  • magma chamber
  • magma chamber overturns
  • magma degassing
  • magma residence
  • magmas
  • magmatic texture
  • major element
  • mantle
  • mantle convection
  • mantle melting
  • mass spectrometry
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  • mechanisms of igneous crystallization
  • melt inclusions
  • melt transport
  • mineral physics
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  • modificacio -
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  • mount st. helens
  • multi-stage plumbing system
  • needle through a
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  • nucleation rate
  • oki-d ō zen
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  • partial melting
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  • plasma ionization
  • práctica autolesiva
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  • research
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  • residence time
  • resorbed cores
  • retroalimentación
  • rhyolite
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  • silicic magmas
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  • taupo volcano
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  • th
  • th-230
  • the literature on tattoos
  • thermobarometry
  • thermodynamic model
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  • timescales of crystallization
  • timescales of magmatic differentiation
  • trace
  • trace element zonation
  • trace elements
  • trace-elements
  • trachyte
  • tungsten
  • u
  • u-238
  • u-pb geochronology
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  • uranium
  • vapor transport
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  • volatiles
  • volcanic rocks
  • was extant in earth
  • was reviewed to see
  • while 182 hf
  • whole-rock chemistry
  • youth
  • zircon
  • zircon geochronology

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Authors

  • E. Heath

  • Simon P. Turner

  • R. Macdonald

  • Chris J. Hawkesworth

  • P. Van Calsteren

  • James S Beard

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