Open Access
Nature Communications, volume 13, issue 1, publication number 3122
Low-degree mantle melting controls the deep seismicity and explosive volcanism of the Gakkel Ridge
Koulakov Ivan
1, 2
,
Schlindwein V.
3, 4
,
Liu Mingqi
5
,
Gerya T. V.
5
,
Jakovlev A.
1, 6
,
Ivanov A. V.
2
3
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
|
4
Department of Geosciences, University of Bremen, Bremen, Germany
|
Publication type: Journal Article
Publication date: 2022-06-03
Journal:
Nature Communications
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor: 16.6
ISSN: 20411723
General Chemistry
General Biochemistry, Genetics and Molecular Biology
General Physics and Astronomy
Abstract
The world’s strongest known spreading-related seismicity swarm occurred in 1999 in a segment of the Gakkel Ridge located at 85°E as a consequence of an effusive-explosive submarine volcanic eruption. The data of a seismic network deployed on ice floes were used to locate hundreds of local earthquakes down to ∼25 km depth and to build a seismic tomography model under the volcanic area. Here we show the seismicity and the distribution of seismic velocities together with the 3D magmatic-thermomechanical numerical model, which demonstrate how a magma reservoir under the Gakkel Ridge may form, rise and trigger volcanic eruptions in the rift valley. The ultraslow spreading rates with low mantle potential temperatures appear to be a critical factor in the production of volatile-rich, low-degree mantle melts that are focused toward the magma reservoirs within narrow magmatic sections. The degassing of these melts is the main cause of the explosive submarine eruptions. Joint implementation of seismic tomography and numerical thermo-mechanical modeling sheds light to the causes of explosive submarine volcanic eruptions on the Gakkel Ridge and deeply penetrating seismicity down to 25 km depth.
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- Statistics recalculated weekly.
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Koulakov I. et al. Low-degree mantle melting controls the deep seismicity and explosive volcanism of the Gakkel Ridge // Nature Communications. 2022. Vol. 13. No. 1. 3122
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Koulakov I., Schlindwein V., Liu M., Gerya T. V., Jakovlev A., Ivanov A. V. Low-degree mantle melting controls the deep seismicity and explosive volcanism of the Gakkel Ridge // Nature Communications. 2022. Vol. 13. No. 1. 3122
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TY - JOUR
DO - 10.1038/s41467-022-30797-4
UR - https://doi.org/10.1038%2Fs41467-022-30797-4
TI - Low-degree mantle melting controls the deep seismicity and explosive volcanism of the Gakkel Ridge
T2 - Nature Communications
AU - Koulakov, Ivan
AU - Schlindwein, V.
AU - Liu, Mingqi
AU - Gerya, T. V.
AU - Jakovlev, A.
AU - Ivanov, A. V.
PY - 2022
DA - 2022/06/03 00:00:00
PB - Springer Nature
IS - 1
VL - 13
SN - 2041-1723
ER -
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@article{2022_Koulakov,
author = {Ivan Koulakov and V. Schlindwein and Mingqi Liu and T. V. Gerya and A. Jakovlev and A. V. Ivanov},
title = {Low-degree mantle melting controls the deep seismicity and explosive volcanism of the Gakkel Ridge},
journal = {Nature Communications},
year = {2022},
volume = {13},
publisher = {Springer Nature},
month = {jun},
url = {https://doi.org/10.1038%2Fs41467-022-30797-4},
number = {1},
doi = {10.1038/s41467-022-30797-4}
}