Seismic evidence for a mantle plume beneath the Cape Verde hotspot

Xin Liu, Dapeng Zhao

Research output: Contribution to journalReview articlepeer-review

12 Citations (Scopus)

Abstract

P- and S-wave tomography of the upper mantle beneath the Cape Verde hotspot is determined using arrival-time data measured precisely from three-component seismograms of 106 distant earthquakes recorded by a local seismic network. Our results show a prominent low-velocity anomaly imaged as a continuous column <100 km wide from the uppermost mantle down to about 500 km beneath Cape Verde, especially below the Fogo active volcano, which erupted in 1995. The lowvelocity anomaly may reflect a hot mantle plume feeding the Cape Verde hotspot.

Original languageEnglish
Pages (from-to)1213-1225
Number of pages13
JournalInternational Geology Review
Volume56
Issue number10
DOIs
Publication statusPublished - 2014

Keywords

  • Cape Verde
  • Earthquakes
  • Hotspot
  • Mantle plume
  • Seismic tomography

ASJC Scopus subject areas

  • Geology

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