The flat to normal subduction transition study to obtain the Nazca plate morphology using high resolution seismicity data from the Nazca plate in Central Chile
作者: Silvina NacifEnrique G. TriepSilvana L. SpagnottoEugenio AragonRenzo FurlaniOrlando Álvarez
作者单位: 1Instituto Geofísico Sismológico F. Volponi, Universidad Nacional de San Juan, Ruta 12, km 17, Marquesado, Rivadavia, San Juan, Argentina
2Consejo Nacional de Investigaciones Científicas y Técnicas, Conicet, Argentina
3Departamento de Física, Universidad Nacional de San Luis, Ejército de los Andes 950, 5700, San Luis Argentina
4Centro de Investigaciones Geológicas, Universidad Nacional de la Plata, Calle 1N° 644, Argentina
刊名: Tectonophysics, 2015, Vol.657 , pp.102-112
来源数据库: Elsevier Journal
DOI: 10.1016/j.tecto.2015.06.027
关键词: Intraslab-depth earthquakesSubduction zonesSubducted slab morphologyDehydration process
原始语种摘要: Abstract(#br)Data from 45 seismological stations mostly temporary were used to obtain an accurate data set of intraslab seismicity of the Nazca subducted plate between 33°S and 35°S. The interest zone located in the transition section where the Nazca plate changes from flat slab north of ~33° to normal slab south of that latitude. In addition, the study region is located where the active volcanic arc appears. From a set of earthquakes which were relocated using a grid-search multiple events algorithm we obtained the plate geometry from latitudes of 33°S to 34.5°S and from 60km to 120km in depth. The obtained morphology shows notable similarity in its structure to Maipo Orocline revealing some possible strong connection between the...
全文获取路径: Elsevier  (合作)
影响因子:2.684 (2012)

  • seismicity 地震活动
  • subduction 俯冲
  • morphology 形态学
  • plate 
  • transition 转移
  • Chile 智利
  • resolution 分解能力
  • obtain 获得
  • below 在下
  • earthquake 地震