Perfiles sísmicos en el Margen Insular de Tenerife:: Proyecto Teide. Resultados preliminares.

• Localización: Geogaceta, ISSN 0213-683X, Nº. 20, 2, 1996, págs. 335-339
• Idioma: español
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• Resumen

  • Continous seismic reflection profiles from north and south slopes of Tenerife, Canary Islands, indicate tha t the slopes o f this island are d o m in ate d by g ra v ita tio n a l structures includin g slumps, catastrophic avalanches, debris flows and turbid ites. O n the n o rth slope th e p ro x im a l ends o f th e tw o massive avalanches display a ridge-valley morphology and the distal ends by overlapping fans. Included with the fans is a extensive fie ld o f exotic blocks . The ridge and valley m o rp h o lo g y is the results o f lo n g itu d in a l shears created by diferentia l movements. The south slope is made up o f tw o terrains, a n o rth one whose morphology is due to a massive avalanche modified by volcanic processes, and a south terrain whose morphology is the result of massive slumpping of a thick sequence of structurally weak volcanic ash and pyroclastic rocks. Both of these terrains are modified on their distal ends by reworking by southerly flowing Atlantic Deep water