1 Ocak 2012 Dergi makalesi Açık Erişim

Yolsal-Cevikbilen, Seda; Biryol, C. Berk; Beck, Susan; Zandt, George; Taymaz, Tuncay; Adiyaman, Hande E.; Ozacar, A. Arda

Citation Style Language JSON

{
  "DOI": "10.1111/j.1365-246X.2011.05313.x", 
  "abstract": "3-D P-wave velocity structure and Vp/Vs variations in the crust along the North Anatolian Fault Zone (NAFZ) in north-central Anatolia were investigated by the inversion of local P- and S-wave traveltimes, to gain a better understanding of the seismological characteristics of the region. The 3-D local earthquake tomography inversions included 5444 P- and 3200 S-wave readings obtained from 168 well-located earthquakes between 2006 January and 2008 May. Dense ray coverage yields good resolution, particularly in the central part of the study area. The 3-D Vp and Vp/Vs tomographic images reveal clear correlations with both the surface geology and significant tectonic units in the region. We observed the lower limit of the seismogenic zone for north-central Anatolia at 15 km depth. Final earthquake locations display a distributed pattern throughout the study area, with most of the earthquakes occurring on the major splays of the NAFZ, rather than its master strand. We identify three major high-velocity blocks in the mid-crust separated by the Izmir-Ankara-Erzincan Suture and interpret these blocks to be continental basement fragments that were accreted onto the margin following the closure of Neo-Tethyan Ocean. These basement blocks may have in part influenced the rupture propagations of the historical 1939, 1942 and 1943 earthquakes. In addition, large variations in the Vp/Vs ratio in the mid-crust were observed and have been correlated with the varying fluid contents of the existing lithologies and related tectonic structures.", 
  "author": [
    {
      "family": "Yolsal-Cevikbilen", 
      "given": " Seda"
    }, 
    {
      "family": "Biryol", 
      "given": " C. Berk"
    }, 
    {
      "family": "Beck", 
      "given": " Susan"
    }, 
    {
      "family": "Zandt", 
      "given": " George"
    }, 
    {
      "family": "Taymaz", 
      "given": " Tuncay"
    }, 
    {
      "family": "Adiyaman", 
      "given": " Hande E."
    }, 
    {
      "family": "Ozacar", 
      "given": " A. Arda"
    }
  ], 
  "container_title": "GEOPHYSICAL JOURNAL INTERNATIONAL", 
  "id": "88007", 
  "issue": "3", 
  "issued": {
    "date-parts": [
      [
        2012, 
        1, 
        1
      ]
    ]
  }, 
  "page": "819-849", 
  "title": "3-D crustal structure along the North Anatolian Fault Zone in north-central Anatolia revealed by local earthquake tomography", 
  "type": "article-journal", 
  "volume": "188"
}