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Seismic waveform tomography of the Central and Eastern Mediterranean upper mantle
Seismic waveform tomography of the Central and Eastern Mediterranean upper mantle
We present a seismic waveform tomography of the upper mantle beneath the central and eastern Mediterranean down to the mantle transition zone. Our methodology incorporates in a consistent manner the information from body and multimode surface waves, source effects, frequency dependence, wavefront healing, anisotropy and attenuation. This allows us to jointly image multiple parameters of the crust and upper mantle. Based on the data from ∼ 17 000 unique source–receiver pairs, gathered from 80 earthquakes, we image radially anisotropic S velocity, P velocity and density. We use a multi-scale approach in which the longest periods (100–150 s) are inverted first, broadening to a period band of 28–150 s. Thanks to a strategy that combines long-period signals and a separation of body and surface wave signals, we are able to image down to the mantle transition zone in most of the model domain. Our model shows considerable detail in especially the northern part of the domain, where data coverage is very dense, and displays a number of clear and coherent high-velocity structures across the domain that can be linked to episodes of current and past subduction. These include the Hellenic subduction zone, the Cyprus subduction zone and high-velocity anomalies beneath the Italian peninsula and the Dinarides. This model is able to explain data from new events that were not included in the inversion.
Solid Earth, 11 (2)
ISSN:1869-9510
ISSN:1869-9529
- University of Cambridge United Kingdom
- Utrecht University
- ETH Zurich Switzerland
- Cambridge University, Cambridge, UK United Kingdom
- UNIVERSITEIT UTRECHT Netherlands
Microsoft Academic Graph classification: Inversion (geology) Transition zone Waveform Anisotropy Subduction Attenuation Crust Surface wave Geology Seismology
Library of Congress Subject Headings: lcsh:Stratigraphy lcsh:QE640-699 lcsh:QE1-996.5 lcsh:Geology
Stratigraphy, Soil Science, 3705 Geology, sub-02, Geochemistry and Petrology, Earth-Surface Processes, QE1-996.5, Paleontology, 37 Earth Sciences, Geology, QE640-699, Geophysics, 3706 Geophysics
Stratigraphy, Soil Science, 3705 Geology, sub-02, Geochemistry and Petrology, Earth-Surface Processes, QE1-996.5, Paleontology, 37 Earth Sciences, Geology, QE640-699, Geophysics, 3706 Geophysics
Microsoft Academic Graph classification: Inversion (geology) Transition zone Waveform Anisotropy Subduction Attenuation Crust Surface wave Geology Seismology
Library of Congress Subject Headings: lcsh:Stratigraphy lcsh:QE640-699 lcsh:QE1-996.5 lcsh:Geology
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citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).27 popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.Top 10% influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).Average impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.Top 10% visibility views 6 download downloads 39 citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).27 popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.Top 10% influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).Average impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.Top 10% Powered byBIP!- 6views39downloads