Role of volatiles in highly explosive basaltic eruptions
Role of volatiles in highly explosive basaltic eruptions
复制标题
挥发物在高爆炸性玄武岩喷发中的作用
DOI:
10.1038/s43247-022-00479-6
复制
发表时间:
2022
影响因子:
7.9
通讯作者:
Clarke, Amanda B.
中科院分区:
文献类型:
--
作者:
La Spina, Giuseppe;Arzilli, Fabio;Burton, Mike R.;Polacci, Margherita;Clarke, Amanda B.
Water and carbon dioxide are the most abundant volatile components in terrestrial magmas. As they exsolve into magmatic vapour, they promote magma buoyancy, accelerating ascent and modulating eruptive dynamics. It is commonly thought that an increase in pre-eruptive volatile content produces an increase in eruption intensity. Using a conduit model for basaltic eruptions, covering the upper 6 km of conduit, we show that for the same chamber conditions mass eruption rate is not affected by CO2content, whereas an increase in H2O up to 10 wt.% produces an increase in eruption rate of an order of magnitude. It is only when CO2is injected in the magma reservoir from an external source that the resulting pressurisation will generate a strong increase in eruption rate. Results also show that ascent velocity and fragmentation depth are strongly affected by pre-eruptive volatile contents demonstrating a link between volatile content and eruptive style.
登录
查看更多内容
DOI:
--
发表时间:
2021
期刊:
影响因子:
--
作者:
M. C. Rowe;R. Carey;J. White;G. Kilgour;Ery C. Hughes;B. Ellis;Jean;A. Segovia
通讯作者:
A. Segovia
影响因子:
3.5
作者:
Allison, Chelsea M.;Roggensack, Kurt;Clarke, Amanda B.
通讯作者:
Clarke, Amanda B.
影响因子:
3.5
作者:
K. Goepfert;J. Gardner
通讯作者:
J. Gardner
影响因子:
2.9
作者:
S. Yoshida;T. Koyaguchi
通讯作者:
T. Koyaguchi
影响因子:
--
作者:
N. Spilliaert;P. Allard;N. Métrich;A. Sobolev
通讯作者:
A. Sobolev