Magma chamber detected beneath an arc volcano with high-resolution velocity images
Magma chamber detected beneath an arc volcano with high-resolution velocity images
复制标题
通过高分辨率速度图像检测到弧火山下方的岩浆室
DOI:
--
复制
发表时间:
2022
期刊:
影响因子:
--
通讯作者:
J. Morgan
中科院分区:
文献类型:
--
作者:
K. Chrapkiewicz;M. Paulatto;B. Heath;E. Hooft;P. Nomikou;C. Papazachos;F. Schmid;D. Toomey;M. R. Warner;J. Morgan
Arc volcanoes are underlain by complex systems of molten-rock reservoirs ranging from melt-poor mush zones to melt-rich magma chambers. Petrological and satellite data indicate that eruptible magma chambers form in the topmost few kilometres of the crust. However, very few chambers have ever been definitively located, suggesting that most are too short-lived or too small to be imaged, which has direct implications for hazard assessment and modelling of magma differentiation. Here we use a highresolution technology based on inverting full seismic waveforms to image a small, high-melt-fraction magma chamber that was not detected with standard seismic tomography. The melt reservoir extends from ~2 to at least 4 km below sea level (b.s.l.) at Kolumbo – a submarine volcano near Santorini, Greece. The chamber coincides with the termination point of the recent earthquake swarms and may be a missing link between a deeper melt reservoir and the high-temperature hydrothermal system venting at the crater floor. The chamber poses a serious hazard as it could produce a highly explosive, tsunamigenic eruption in the near future. Our results suggest that similar reservoirs (relatively small but high melt-fraction) may have gone undetected at other active volcanoes, challenging the existing eruption forecasts and reactive-flow models of magma differentiation.
登录
查看更多内容
影响因子:
2.9
作者:
Hooft, Emilie E.E.;Nomikou, Paraskevi;Toomey, Douglas R.;Lampridou, Danai;Getz, Claire;Christopoulou, Maria-Eleni;O'Hara, Daniel;Arnoux, Gillean M.;Bodmer, Miles;Gray, Melissa
通讯作者:
Gray, Melissa
影响因子:
18.3
作者:
M. Parks;J. Biggs;P. England;T. Mather;P. Nomikou;Kirill Palamartchouk;X. Papanikolaou;D. Paradissis;B. Parsons;D. Pyle;Costas Raptakis;V. Zacharis
通讯作者:
M. Parks;J. Biggs;P. England;T. Mather;P. Nomikou;Kirill Palamartchouk;X. Papanikolaou;D. Paradissis;B. Parsons;D. Pyle;Costas Raptakis;V. Zacharis
DOI:
10.1029/2019jb018476
发表时间:
2019-11
期刊:
Journal of Geophysical Research: Solid Earth
影响因子:
--
作者:
M. Paulatto;M. Moorkamp;S. Hautmann;E. Hooft;J. Morgan;R. Sparks
通讯作者:
M. Paulatto;M. Moorkamp;S. Hautmann;E. Hooft;J. Morgan;R. Sparks
影响因子:
5.3
作者:
Hooft, E. E. E.;Heath, B. A.;Warner, M. R.
通讯作者:
Warner, M. R.
DOI:
10.1029/2019jb017699
发表时间:
2019
期刊:
Journal of Geophysical Research: Solid Earth
影响因子:
--
作者:
Heath, B. A.;Hooft, E. E. E.;Toomey, D. R.;Papazachos, C. B.;Nomikou, P.;Paulatto, M.;Morgan, J. V.;Warner, M. R.
通讯作者:
Warner, M. R.