Holocene slip rate of the North Anatolia Fault in the Sea of Marmara (Articolo in rivista)

Type
Label
  • Holocene slip rate of the North Anatolia Fault in the Sea of Marmara (Articolo in rivista) (literal)
Anno
  • 2004-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.epsl.2004.07.042 (literal)
Alternative label
  • Polonia A. (a), Gasperini L. (a), Amorosi A. (b), Bonatti E. (a) (c), Bortoluzzi G. (a), Çagatay N. (d), Capotondi L. (a), Cormier M.-H. (c), Gorur N. (d) (e), McHugh C. (c), Seeber L. (c) (2004)
    Holocene slip rate of the North Anatolia Fault in the Sea of Marmara
    in Earth and planetary science letters
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Polonia A. (a), Gasperini L. (a), Amorosi A. (b), Bonatti E. (a) (c), Bortoluzzi G. (a), Çagatay N. (d), Capotondi L. (a), Cormier M.-H. (c), Gorur N. (d) (e), McHugh C. (c), Seeber L. (c) (literal)
Pagina inizio
  • 411 (literal)
Pagina fine
  • 426 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni
  • doi:10.1016/j.epsl.2004.07.042 http://www.sciencedirect.com (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 227 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • (a) CNR-ISMAR, Sezione Istituto Geologia Marina, Bologna Via Gobetti, 101, 40129 Bologna, Italy (b) Universita' degli Studi di Bologna, Dip. Scienze della Terra (c) Lamont Doherty Earth Observatory, Columbia University, New York, USA (d) Istanbul Technical University, Istanbul, Turkey (e) TUBITAK Marmara Research Center (literal)
Titolo
  • Holocene slip rate of the North Anatolia Fault in the Sea of Marmara (literal)
Abstract
  • The North Anatolian Fault (NAF) is a major continental transform system that extends E–W across Turkey for over 1600 km, separating the Anatolian and Eurasian plates. A portion of its northern branch runs below the Sea of Marmara. This portion constitutes a “seismic gap” because the last destructive earthquakes occurred at the western (1912 Ganos earthquake, M 7.4) and eastern (1999 Ýzmit and Duezce earthquakes, Mw 7.4, 7.2) edges of the Marmara basin. It is likely that fault ruptures will fill this gap in the next decades. This region of the North Anatolian Fault is critical to our understanding of fault interactions, stress buildup during seismic cycle and seismic hazard in the Istanbul area. We obtained high-resolution acoustic images of the NAF in the floor of the eastern Marmara Sea (Gulf of Ýzmit), and measured fault-related offsets of 14C-dated subseafloor channels and paleoshorelines. The resulting average slip rate on the fault is 10 mm/year for the last 10 kyr. This is less than half the total Anatolia–Eurasia relative motion, estimated at 24 mm/year for the last 10 years from satellite geodetic measurements. We conclude that either much of the strike-slip motion along this branch of the NAF did not occur on the main fault segment or the slip rate increased recently, or both. These results affect kinematic models of the NAF and assessments of seismic hazard for the city of Istanbul and the surrounding region. (literal)
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