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Structural cause of a missed eruption in the Harrat Lunayyir basaltic field (Saudi Arabia) in 2009. / Koulakov, Ivan; Khrepy, Sami El; Al-Arifi, Nassir и др.

в: Geology, Том 43, № 5, 2015, стр. 395-398.

Результаты исследований: Научные публикации в периодических изданияхстатьяРецензирование

Harvard

Koulakov, I, Khrepy, SE, Al-Arifi, N, Kuznetsov, P & Kasatkina, E 2015, 'Structural cause of a missed eruption in the Harrat Lunayyir basaltic field (Saudi Arabia) in 2009', Geology, Том. 43, № 5, стр. 395-398. https://doi.org/10.1130/G36271.1

APA

Koulakov, I., Khrepy, S. E., Al-Arifi, N., Kuznetsov, P., & Kasatkina, E. (2015). Structural cause of a missed eruption in the Harrat Lunayyir basaltic field (Saudi Arabia) in 2009. Geology, 43(5), 395-398. https://doi.org/10.1130/G36271.1

Vancouver

Koulakov I, Khrepy SE, Al-Arifi N, Kuznetsov P, Kasatkina E. Structural cause of a missed eruption in the Harrat Lunayyir basaltic field (Saudi Arabia) in 2009. Geology. 2015;43(5):395-398. doi: 10.1130/G36271.1

Author

Koulakov, Ivan ; Khrepy, Sami El ; Al-Arifi, Nassir и др. / Structural cause of a missed eruption in the Harrat Lunayyir basaltic field (Saudi Arabia) in 2009. в: Geology. 2015 ; Том 43, № 5. стр. 395-398.

BibTeX

@article{c14ab2a271de4dc1a43dcd7e599f77a9,
title = "Structural cause of a missed eruption in the Harrat Lunayyir basaltic field (Saudi Arabia) in 2009",
abstract = "Harrat Lunayyir is one of the most volcanically active recent basaltic fields in western Saudi Arabia. A period of substantial seismic unrest, featuring more than 30,000 local events, occurred in Harrat Lunayyir in April-June 2009. Although this crisis was presumably related to ongoing magma activity, it ended without any surface volcanic activity. We create new tomographic models of P and S velocities (VP and VS) and use them to explain the causes of this unrest and the reasons the eruption failed. A large seismic anomaly of high VP/VS ratio below 7 km depth coincides with the locations of more than 50 recent cinder cones with ages of older than 100 ka, and is interpreted as a steady-state magma reservoir. We also identify another seismic anomaly at depths below 15 km, which is interpreted as a conduit for fluids and melts from deeper sources. Because the location of this conduit is slightly outside the main reservoir, some of the incoming material was dispersed. As a result, the activation of the crustal reservoir was not sufficiently strong to pierce the rigid basaltic cover and cause an actual eruption during the crisis in 2009.",
author = "Ivan Koulakov and Khrepy, {Sami El} and Nassir Al-Arifi and Pavel Kuznetsov and Ekaterina Kasatkina",
year = "2015",
doi = "10.1130/G36271.1",
language = "English",
volume = "43",
pages = "395--398",
journal = "Geology",
issn = "0091-7613",
publisher = "Geological Society of America",
number = "5",

}

RIS

TY - JOUR

T1 - Structural cause of a missed eruption in the Harrat Lunayyir basaltic field (Saudi Arabia) in 2009

AU - Koulakov, Ivan

AU - Khrepy, Sami El

AU - Al-Arifi, Nassir

AU - Kuznetsov, Pavel

AU - Kasatkina, Ekaterina

PY - 2015

Y1 - 2015

N2 - Harrat Lunayyir is one of the most volcanically active recent basaltic fields in western Saudi Arabia. A period of substantial seismic unrest, featuring more than 30,000 local events, occurred in Harrat Lunayyir in April-June 2009. Although this crisis was presumably related to ongoing magma activity, it ended without any surface volcanic activity. We create new tomographic models of P and S velocities (VP and VS) and use them to explain the causes of this unrest and the reasons the eruption failed. A large seismic anomaly of high VP/VS ratio below 7 km depth coincides with the locations of more than 50 recent cinder cones with ages of older than 100 ka, and is interpreted as a steady-state magma reservoir. We also identify another seismic anomaly at depths below 15 km, which is interpreted as a conduit for fluids and melts from deeper sources. Because the location of this conduit is slightly outside the main reservoir, some of the incoming material was dispersed. As a result, the activation of the crustal reservoir was not sufficiently strong to pierce the rigid basaltic cover and cause an actual eruption during the crisis in 2009.

AB - Harrat Lunayyir is one of the most volcanically active recent basaltic fields in western Saudi Arabia. A period of substantial seismic unrest, featuring more than 30,000 local events, occurred in Harrat Lunayyir in April-June 2009. Although this crisis was presumably related to ongoing magma activity, it ended without any surface volcanic activity. We create new tomographic models of P and S velocities (VP and VS) and use them to explain the causes of this unrest and the reasons the eruption failed. A large seismic anomaly of high VP/VS ratio below 7 km depth coincides with the locations of more than 50 recent cinder cones with ages of older than 100 ka, and is interpreted as a steady-state magma reservoir. We also identify another seismic anomaly at depths below 15 km, which is interpreted as a conduit for fluids and melts from deeper sources. Because the location of this conduit is slightly outside the main reservoir, some of the incoming material was dispersed. As a result, the activation of the crustal reservoir was not sufficiently strong to pierce the rigid basaltic cover and cause an actual eruption during the crisis in 2009.

UR - http://www.scopus.com/inward/record.url?scp=84929460802&partnerID=8YFLogxK

U2 - 10.1130/G36271.1

DO - 10.1130/G36271.1

M3 - Article

AN - SCOPUS:84929460802

VL - 43

SP - 395

EP - 398

JO - Geology

JF - Geology

SN - 0091-7613

IS - 5

ER -

ID: 25708589