Time scales of syneruptive volatile loss in silicic magmas quantified by Li isotopes
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F21%3A00000001" target="_blank" >RIV/00025798:_____/21:00000001 - isvavai.cz</a>
Result on the web
<a href="https://pubs.geoscienceworld.org/gsa/geology/article/49/2/125/590928/Time-scales-of-syneruptive-volatile-loss-in" target="_blank" >https://pubs.geoscienceworld.org/gsa/geology/article/49/2/125/590928/Time-scales-of-syneruptive-volatile-loss-in</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1130/G47764.1" target="_blank" >10.1130/G47764.1</a>
Alternative languages
Result language
angličtina
Original language name
Time scales of syneruptive volatile loss in silicic magmas quantified by Li isotopes
Original language description
Most explosive, silicic volcanoes, spend thousands of years in repose between eruptive events. Timing this switch from repose to eruption is key to interpreting monitoring signals and improving the safety of people living close to active volcanoes. We addressed this question using a novel technique based on lithium isotopic (d7Li) and elemental concentration profiles within plagioclase crystals, constraining volatile degassing to occur on time scales of tens of minutes prior to eruption. During this ephemeral time, Li abundances drop by a factor of 4 to 10 from crystal cores to rims accompanied by an increase of d7Li of up to 10 permil, reflecting diffusion-driven equilibration between plagioclase cores and outgassed, Li-poor melt. Our time scales show the potential for rapid changes in the volatile inventory of magmas syn-eruptively.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10505 - Geology
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Geology
ISSN
0091-7613
e-ISSN
—
Volume of the periodical
49
Issue of the periodical within the volume
2
Country of publishing house
US - UNITED STATES
Number of pages
5
Pages from-to
125-129
UT code for WoS article
000613644100003
EID of the result in the Scopus database
2-s2.0-85099247318