Velocidades de transmisión de ondas P y S en rocas máficas y ultramáficas. Datos obtenidos experimentalmente y calculados. Macizo de Sierra Alpujata. (Cordilleras Béticas).

García-San Millán, R.S. ^[1] ; Kern, H. ^[2] ; Tubía, J.M. ^[1] ; Mainprice, D. ^[3]
1. [1] Universidad del País Vasco/Euskal Herriko Unibertsitatea
  
  Universidad del País Vasco/Euskal Herriko Unibertsitatea
  
  Leioa, España
2. [2] Mineralogisch-Petrographisches lnstitut, Alemania
3. [3] Université des Sciences et Technologie de Lille U.S.T.L., Francia
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Localización: Geogaceta, ISSN 0213-683X, Nº. 20, 4, 1996 (Ejemplar dedicado a: Comunicaciones presentadas en el IV Congreso Nacional de Geología, Alcalá de Henares, 1996), págs. 988-991
Idioma: español
Títulos paralelos:
- P- and S-waves transmision velocities in mafic and ultramafic rocks. Experimental and calculated- obtained data. Sierra Alpujata Massif. (Betic Cordillera)
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Resumen
- The seismic properties of upper mantle representative samples from the Ronda ultramafic body (Betic Cordillera, Spain) have been determined using laboratory direct measurements and calculations based on the lattice preferred orientations (LPOs) of major minerals. Samples of selected mafic and ultramafic rocks collect the main petrological facies and microstructures present in the Sierra Alpujata Massif. This allows to analyse the lithological and microestructural influence in the P- and S-waves velocities and seismic anisotropy and the strong control produced by the serpentization degree. Reflection coefficients between lithological interfases have been calculated from laboratory measurements allowing the characterization of potential seismic reflectors in the subconlinental upper mantle.