scholarly journals 3D seismic imaging of the shallow plumbing system beneath the Ben Nevis Monogenetic Volcanic Field: Faroe–Shetland Basin

2017 ◽  
Vol 174 (3) ◽  
pp. 468-485 ◽  
Author(s):  
Charlotte E. McLean ◽  
Nick Schofield ◽  
David J. Brown ◽  
David W. Jolley ◽  
Alexander Reid
Keyword(s):  
Seismic Imaging ◽  
Volcanic Field ◽  
3D Seismic ◽  
Plumbing System ◽  
Monogenetic Volcanic Field

scholarly journals Evidence of active magmatic rifting at the Ma’Alalta volcanic field (Afar, Ethiopia)

2021 ◽  
Vol 83 (6) ◽  
Author(s):  
Gianmaria Tortelli ◽  
Anna Gioncada ◽  
Carolina Pagli ◽  
Mauro Rosi ◽  
Laura De Dosso ◽  
...  
Keyword(s):  
Seismic Data ◽  
Volcanic Field ◽  
Lava Flows ◽  
Magmatic Activity ◽  
Magma Storage ◽  
Plumbing System ◽  
Mafic Lava ◽  
Cinder Cones ◽  
Mafic Rocks ◽  
Seismic Networks

AbstractDuring continental rifting, strain and magmatism are believed to localize to narrow magmatic segments, while the rift margin is progressively abandoned. We integrate volcanological, geochemical, petrological and seismic data from the Ma’Alalta volcanic field (MVF) near the western margin of Afar, to show that the MVF is an active magmatic segment. Magmatism in MVF initiated with lava flows and large-volume, caldera-forming ignimbrites from a central edifice. However, the most recent magmatic activity shifted towards mafic lava fields, cinder cones and obsidian-rich silicic domes erupted from vents aligned NNW-SSE, defining a ~ 35-km-long magmatic segment. Along the same area, a NNW-SSE alignment of earthquakes was recorded by two local seismic networks (2005–2009 and 2011–2013). The geochemistry of the mafic rocks is similar to those of nearby axial volcanoes. Inferred magma storage depth from mineral geobarometry shows that a shallow, silicic chamber existed at ~ 5-km depth below the stratovolcano, while a stacked plumbing system with at least three magma storage levels between 9 and 24 km depth fed the recent basalts. We interpret the wide set of observations from the MVF as evidence that the area is an active magmatic segment, showing that localised axial extension can be heavily offset towards the rift margin.

Free gas distribution and basal shear zone development in a subaqueous landslide – Insight from 3D seismic imaging of the Tuaheni Landslide Complex, New Zealand

2018 ◽  
Vol 502 ◽  
pp. 231-243 ◽  
Author(s):  
Felix Gross ◽  
Joshu J. Mountjoy ◽  
Gareth J. Crutchley ◽  
Christoph Böttner ◽  
Stephanie Koch ◽  
...  
Keyword(s):  
New Zealand ◽  
Shear Zone ◽  
Seismic Imaging ◽  
3D Seismic ◽  
Gas Distribution ◽  
Free Gas ◽  
Zone Development ◽  
Basal Shear

3D Seismic Imaging of a Deep Landslide in the Eastern Alps (Northern Italy)

2007 ◽  
Author(s):  
R. G. Francese ◽  
G. Bohm ◽  
N. Wardell ◽  
A. Baglioni ◽  
R. Genevois ◽  
...  
Keyword(s):  
Seismic Imaging ◽  
Eastern Alps ◽  
Northern Italy ◽  
3D Seismic

Efficient Green's functions calculation for improved 3D seismic imaging in complex areas

1994 ◽  
Author(s):  
V. Vinje ◽  
I. Lecomte ◽  
K. Astebol ◽  
E. Iversen ◽  
H. Gjoystdal
Keyword(s):  
Green's Functions ◽  
Seismic Imaging ◽  
Green’S Functions ◽  
3D Seismic

Timing the evolution of a monogenetic volcanic field: Sierra Chichinautzin, Central Mexico

2018 ◽  
Vol 356 ◽  
pp. 225-242 ◽  
Author(s):  
M.C. Jaimes-Viera ◽  
A.L. Martin Del Pozzo ◽  
P.W. Layer ◽  
J.A. Benowitz ◽  
A. Nieto-Torres
Keyword(s):  
Volcanic Field ◽  
Central Mexico ◽  
Monogenetic Volcanic Field
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