H2O, CO2, Cl, and gas in Plinian and ash-flow Bishop rhyolite

A. T. Anderson, S. Newman, Stanley Williams, T. H. Druitt, C. Skirius, E. Stolper

Research output: Contribution to journalArticle

204 Citations (Scopus)

Abstract

Infrared spectroscopic (H2O and CO2) and electron microprobe (Cl) analyses of glass inclusions in Plinian and ash-flow quartz phenocrysts from the Bishop Tuff reveal the preeruption concentrations of volatiles in separate parts of the body of magma. There is an inverse relation between H2O and CO2 that can be explained 1) by closed-system, gas-saturated crystallization of parent magma to yield Plinian magma + (lost) crystals or 2) by the rise of CO2-rich bubbles through water-rich magma. Our estimated pressures of gas-saturation range from about 1.6kbar (Plinian) to 2.3kbar (ash flow) and accord with geologic evidence for 3km of magma withdrawal and caldera subsidence. -Authors

Original languageEnglish (US)
Pages (from-to)221-225
Number of pages5
JournalGeology
Volume17
Issue number3
DOIs
StatePublished - 1989
Externally publishedYes

Fingerprint

ash flow
rhyolite
magma
gas
tuff
caldera
electron probe analysis
bubble
crystallization
subsidence
glass
saturation
crystal
quartz
water

ASJC Scopus subject areas

  • Geology

Cite this

Anderson, A. T., Newman, S., Williams, S., Druitt, T. H., Skirius, C., & Stolper, E. (1989). H2O, CO2, Cl, and gas in Plinian and ash-flow Bishop rhyolite. Geology, 17(3), 221-225. https://doi.org/10.1130/0091-7613(1989)017<0221:HOCCAG>2.3.CO

H2O, CO2, Cl, and gas in Plinian and ash-flow Bishop rhyolite. / Anderson, A. T.; Newman, S.; Williams, Stanley; Druitt, T. H.; Skirius, C.; Stolper, E.

In: Geology, Vol. 17, No. 3, 1989, p. 221-225.

Research output: Contribution to journalArticle

Anderson, AT, Newman, S, Williams, S, Druitt, TH, Skirius, C & Stolper, E 1989, 'H2O, CO2, Cl, and gas in Plinian and ash-flow Bishop rhyolite', Geology, vol. 17, no. 3, pp. 221-225. https://doi.org/10.1130/0091-7613(1989)017<0221:HOCCAG>2.3.CO
Anderson AT, Newman S, Williams S, Druitt TH, Skirius C, Stolper E. H2O, CO2, Cl, and gas in Plinian and ash-flow Bishop rhyolite. Geology. 1989;17(3):221-225. https://doi.org/10.1130/0091-7613(1989)017<0221:HOCCAG>2.3.CO
Anderson, A. T. ; Newman, S. ; Williams, Stanley ; Druitt, T. H. ; Skirius, C. ; Stolper, E. / H2O, CO2, Cl, and gas in Plinian and ash-flow Bishop rhyolite. In: Geology. 1989 ; Vol. 17, No. 3. pp. 221-225.
@article{af29625c1cc841cf923b75fc1b8be7ed,
title = "H2O, CO2, Cl, and gas in Plinian and ash-flow Bishop rhyolite",
abstract = "Infrared spectroscopic (H2O and CO2) and electron microprobe (Cl) analyses of glass inclusions in Plinian and ash-flow quartz phenocrysts from the Bishop Tuff reveal the preeruption concentrations of volatiles in separate parts of the body of magma. There is an inverse relation between H2O and CO2 that can be explained 1) by closed-system, gas-saturated crystallization of parent magma to yield Plinian magma + (lost) crystals or 2) by the rise of CO2-rich bubbles through water-rich magma. Our estimated pressures of gas-saturation range from about 1.6kbar (Plinian) to 2.3kbar (ash flow) and accord with geologic evidence for 3km of magma withdrawal and caldera subsidence. -Authors",
author = "Anderson, {A. T.} and S. Newman and Stanley Williams and Druitt, {T. H.} and C. Skirius and E. Stolper",
year = "1989",
doi = "10.1130/0091-7613(1989)017<0221:HOCCAG>2.3.CO",
language = "English (US)",
volume = "17",
pages = "221--225",
journal = "Geology",
issn = "0091-7613",
publisher = "Geological Society of America",
number = "3",

}

TY - JOUR

T1 - H2O, CO2, Cl, and gas in Plinian and ash-flow Bishop rhyolite

AU - Anderson, A. T.

AU - Newman, S.

AU - Williams, Stanley

AU - Druitt, T. H.

AU - Skirius, C.

AU - Stolper, E.

PY - 1989

Y1 - 1989

N2 - Infrared spectroscopic (H2O and CO2) and electron microprobe (Cl) analyses of glass inclusions in Plinian and ash-flow quartz phenocrysts from the Bishop Tuff reveal the preeruption concentrations of volatiles in separate parts of the body of magma. There is an inverse relation between H2O and CO2 that can be explained 1) by closed-system, gas-saturated crystallization of parent magma to yield Plinian magma + (lost) crystals or 2) by the rise of CO2-rich bubbles through water-rich magma. Our estimated pressures of gas-saturation range from about 1.6kbar (Plinian) to 2.3kbar (ash flow) and accord with geologic evidence for 3km of magma withdrawal and caldera subsidence. -Authors

AB - Infrared spectroscopic (H2O and CO2) and electron microprobe (Cl) analyses of glass inclusions in Plinian and ash-flow quartz phenocrysts from the Bishop Tuff reveal the preeruption concentrations of volatiles in separate parts of the body of magma. There is an inverse relation between H2O and CO2 that can be explained 1) by closed-system, gas-saturated crystallization of parent magma to yield Plinian magma + (lost) crystals or 2) by the rise of CO2-rich bubbles through water-rich magma. Our estimated pressures of gas-saturation range from about 1.6kbar (Plinian) to 2.3kbar (ash flow) and accord with geologic evidence for 3km of magma withdrawal and caldera subsidence. -Authors

UR - http://www.scopus.com/inward/record.url?scp=0024567525&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0024567525&partnerID=8YFLogxK

U2 - 10.1130/0091-7613(1989)017<0221:HOCCAG>2.3.CO

DO - 10.1130/0091-7613(1989)017<0221:HOCCAG>2.3.CO

M3 - Article

AN - SCOPUS:0024567525

VL - 17

SP - 221

EP - 225

JO - Geology

JF - Geology

SN - 0091-7613

IS - 3

ER -