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Geomorphologic Evidences of Flank Instabilities in the Eastern Sector of the Tejeda Volcano (Canary Islands, Spain) During the Quaternary

  • Jorge Yepes TemiñoEmail author
  • Martín Jesús Rodríguez-Peces
  • Nieves Sánchez
  • Inés Galindo
  • Rodrigo del Potro
Chapter

Abstract

This paper provides both geological and geomorphologic observations that support the existence of flank instabilities in the eastern sector of the Tejeda Volcano (Gran Canaria) during the Quaternary. The observations are focused on the analysis of the drainage system, scarps, erosion surfaces, residual reliefs, field of volcanoes and lithological correlation between the surface geology and data derived from wells and boreholes. We have identified a wide paleo-valley developed in Miocene volcanic materials, which could be related to a large rock slide, as well as a subsequent secondary scarp of Pliocene age developed at the distal area of the slide mass. These observations confirm the occurrence of large insular flank collapses of the Tejeda Volcano during the Miocene to Pliocene. These flank instabilities suggest a NE-SW extensional regime, which could be related to a NW-SE fault zone that divides Gran Canaria Island into two sectors.

Keywords

Canary Islands Flank collapse Gran Canaria Pliocene Quaternary Rock slide Volcanic rock 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Jorge Yepes Temiño
    • 1
    Email author
  • Martín Jesús Rodríguez-Peces
    • 2
  • Nieves Sánchez
    • 3
  • Inés Galindo
    • 2
  • Rodrigo del Potro
    • 4
  1. 1.Department of Civil EngineeringUniversity of Las Palmas de Gran CanariaLas Palmas de Gran CanariaSpain
  2. 2.Department of GeodynamicsUniversity Complutense of Madrid. Ciudad Universitaria s/nMadridSpain
  3. 3.Unit of Canary IslandsGeological Survey of Spain (IGME)Las Palmas de Gran CanariaSpain
  4. 4.School of Earth SciencesUniversity of BristolBristolUK

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