ORCID Profile
0000-0003-4109-1810
Current Organisation
Universität Bremen
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Publisher: Elsevier BV
Date: 04-2014
Publisher: American Geophysical Union (AGU)
Date: 04-2009
DOI: 10.1029/2008GC002229
Publisher: American Geophysical Union (AGU)
Date: 16-08-2011
DOI: 10.1029/2010JB008105
Publisher: American Geophysical Union (AGU)
Date: 03-2023
DOI: 10.1029/2022GC010608
Abstract: The Eastern Central Atlantic (ECA) region includes the Azores, Canary, Cape Verde, Great Meteor, and Madeira hotspots. These hotspots exhibit a large variety of characteristics and are rooted in the lithosphere ranging in age from newly created at the Mid Atlantic Ridge to Jurassic at the NW Africa Atlantic margin. Therefore, the ECA region represents an excellent scenario to investigate in an integrated way the effects of hotspots on the mechanical structure of oceanic lithosphere. Here, we calculate the effective elastic thickness ( T e ) of the lithosphere from an analysis of gravity and topography. Azores hotspot is characterized by a T e 10 km, whereas the Great Meteor, Cape Verde, and Madeira hotspots have intermediate T e (15–30 km) values. In contrast, the Canary hotspot is characterized by a much higher T e ( km), forming the largest and most prominent mechanical feature in the ECA. All the hotspots except Canary show standard elastic thickness values when compared to average values for the same age lithosphere and to other oceanic areas in the world. The high strength of the Canary hotspot may be related to the highly depleted mantle composition in the area. The comparison between the elastic thickness distribution and the upper mantle seismic velocity structure shows no correlation between the T e estimated at the ECA hotspots (with the exception of Azores) and the presence of low shear‐wave velocity anomalies in the underlying mantle. This lack of correlation suggests a negligible effect of upper mantle temperature anomalies on the flexure of the ECA region.
Publisher: Springer Science and Business Media LLC
Date: 06-06-2014
DOI: 10.1038/NCOMMS5014
Location: United Kingdom of Great Britain and Northern Ireland
Location: United Kingdom of Great Britain and Northern Ireland
Location: No location found
No related grants have been discovered for Marta Perez-Gussinye.