Caracterización estructural del Parque Nacional de Timanfaya mediante técnicas y métodos geodésicos y geofísicos

  1. José Arnoso 1
  2. Fuensanta G. Montesinos 2
  3. David Gómez-Ortiz 3
  4. Tomás Martín-Crespo 3
  5. Isabel Blanco-Monteneggro 4
  6. Andrey Gorbatikov 5
  7. Teresa Benavent 2
  8. Emilio Vélez 1
  9. Mercedes Solla 6
  10. Manuel Calvo-Rathert 4
  11. Henrique Lorenzo 7
  12. Umberto Riccardi 8
  1. 1 Instituto de Geociencias
    info

    Instituto de Geociencias

    Madrid, España

    ROR https://ror.org/04qan0m84

  2. 2 Universidad Complutense de Madrid
    info

    Universidad Complutense de Madrid

    Madrid, España

    ROR 02p0gd045

  3. 3 Universidad Rey Juan Carlos
    info

    Universidad Rey Juan Carlos

    Madrid, España

    ROR https://ror.org/01v5cv687

  4. 4 Universidad de Burgos
    info

    Universidad de Burgos

    Burgos, España

    ROR https://ror.org/049da5t36

  5. 5 Joint Institute of Physics of the Earth (RAS). Russia
  6. 6 Centro Universitario de la Defensa (CUD-ENM). Escuela Naval Militar
  7. 7 Universidade de Vigo
    info

    Universidade de Vigo

    Vigo, España

    ROR https://ror.org/05rdf8595

  8. 8 University Federico II of Naples. Dpt. of Earth, Environmental and Resources. Napoli (Italia)
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Book:
Proyectos de investigación en parques nacionales: 2012-2015
  1. Pep Amengual (ed. lit.)

Publisher: Organismo Autónomo Parques Nacionales

ISBN: 978-84-8014-907-5

Year of publication: 2018

Pages: 89-106

Type: Book chapter

GOOGLE SCHOLAR

Abstract

Project 360/2011 allowed us to use several exploration techniques for the identification andcharacterization of subsurface volcanic structures in the National Park of Timanfaya (Lanzarote,Canary Islands). We have characterized the Earth’s crustal structure to a regional scale and atdifferent depths through application of prospecting techniques based on the gravimetric, magneticand microseismic sounding methods and calculating their respective inversion models. A heterogeneous crust can be inferred from the analysis of those models. Common structures to thegravimetric and magnetic anomalies were found at the National Park’s area, all were related tothe system that generated the volcanic eruption from 1730 to 1736. A different direction from themain eruptive fissure was obtained for the first time, being interpreted as a recent volcanic featurethat is not representative of the preferred direction in which magmas are located in LanzaroteIsland. To a local extent, applying of ground penetrating radar, gravimetric and electromagneticinduction techniques they show a great capability for characterizing unique volcanic structures,without damaging or disturbing the natural environment. Thus, volcanic tunnels and basaltic dykes,which are not visible on the surface, have been accurately located and determined their respectivegeometry. The analysis of ground deformation and GPS displacements associated to temperaturevariations around the geothermal wells at Camelleros area allow verifying of the heat transmission model and the circulation of the residual heat flow, still remaining form the 1730 to 1736eruption. Additionally, and for the first time, the analysis of the response to electromagnetic wavesof the heat source has established its depth and geometry in the Islote de Hilario. Finally, resultsare included in a geo-reference database to be integrated into the geographic information systemof the National Park of Timanfaya.