Back to Search Start Over

The Coupled Magmatic and Hydrothermal Systems of the Restless Aluto Caldera, Ethiopia

Authors :
Juliet Biggs
J-Michael Kendall
Atalay Ayele
Andy Nowacki
Matthew Wilks
James Wookey
Nicholas Rawlinson
Rawlinson, Nicholas [0000-0002-6977-291X]
Apollo - University of Cambridge Repository
Source :
Frontiers in Earth Science, Vol 8 (2020)
Publication Year :
2020
Publisher :
Frontiers Media SA, 2020.

Abstract

Seismicity can be used to better understand interactions between magma bodies, hydrothermal systems and their host rocks—key factors influencing volcanic unrest. Here, we use earthquake data to image, for the first time, the seismic velocity structure beneath Aluto, a deforming volcano in the Main Ethiopian Rift. Traveltime tomography is used to jointly relocate seismicity and image 3D P- and S-wave velocity structures and the ratio between them (V P/V S). At depths of 4–9 km, the seismicity maps the top of a large low velocity zone with high V P/V S, which we interpret as a more ductile and melt-bearing region. A shallow (

Details

ISSN :
22966463
Database :
OpenAIRE
Journal :
Frontiers in Earth Science, Vol 8 (2020)
Accession number :
edsair.doi.dedup.....e4f966fc17a1ff3c47cb40f1090a023a