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Estudio sísmico de la corteza superior en Isla Decepción (Antártida)

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Agudo, I.M. and Córdoba Barba, Diego and Dávila, J.M. and Pazos López, Ángel (2004) Estudio sísmico de la corteza superior en Isla Decepción (Antártida). Geotemas, 6 (2). pp. 205-208. ISSN 1576-5172

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Abstract

In this work, results from 4 refraction/wide angle seismic profiles, acquired in 2002 during the GEODEC-MAR cruise across Deception Island volcanic interior; have allowed us to determine the upper crustal structure. According to P-wave velocity-depth model obtained, a four layer structure have been observed. The first and the second layers correspond to the sedimentary cover (1.8-2.8 and 3.5-3.6 km s'1 respectively). The third one is interpreted as the crystalline basement (4.0-4.9 km s'1). The fourth layer is separated in two zones which indicate two types of crust: type 1-5.5 km s type 11-6.0 km s'1, the contact between both zones could be related with a fracture zone across Deception Island.


Item Type:Article
Uncontrolled Keywords:Antartica, Marine survey, Crustal structure, Deception Island, Seismic modelling
Subjects:Sciences > Geology > Seismology
ID Code:60745
Deposited On:02 Jun 2020 12:15
Last Modified:02 Jun 2020 12:15

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