Identifying instrumental and historical earthquake records in the SW Iberian margin using ²¹⁰Pb turbidite chronology

Textural, mineralogical and geochemical analyses of near-surface sediments from six different stations offshore SW Iberian Peninsula revealed the presence of thin detrital intervals corresponding to very fine-grained turbidites. Precise dating of the two most recent sedimentary layers based on ²¹⁰ P...

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Detalles Bibliográficos
Autores: García Orellana, Jordi|||0000-0002-0543-2641, Gràcia, Eulàlia, Vizcaino, Alexis, Masqué Barri, Pere|||0000-0002-1789-320X, Olid García, Carolina|||0000-0003-3857-3210, Martínez-Ruiz, Francisca|||0000-0002-8301-4453, Piñero, Elena, Sanchez-Cabeza, Joan-Albert|||0000-0002-3540-1168, Dañobeitia, Juanjo
Tipo de recurso: artículo
Fecha de publicación:2006
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:158282
Acceso en línea:https://ddd.uab.cat/record/158282
https://dx.doi.org/urn:doi:10.1029/2006GL028417
Access Level:acceso abierto
Palabra clave:Earthquakes
Turbidite
Descripción
Sumario:Textural, mineralogical and geochemical analyses of near-surface sediments from six different stations offshore SW Iberian Peninsula revealed the presence of thin detrital intervals corresponding to very fine-grained turbidites. Precise dating of the two most recent sedimentary layers based on ²¹⁰ Pb and ¹³⁷ Cs geochronology provides ages of 1971 ± 3 AD and 1908 ± 8 AD. These ages correspond to high-magnitude historical and instrumental earthquakes that occurred in the region: the 1969 Horseshoe Earthquake (Mw 8.0) and the 1909 Benavente Earthquake (Mw 6.0). Such a good correlation between turbidites and high-magnitude (Mw.

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