publication . Other literature type . Article . 2017

Factors influencing seismic wave attenuation in the lithosphere in continental rift zones

Open Access English
  • Published: 01 Mar 2017
  • Publisher: Russian Acad Sciences, Siberian Branch, Inst Earths Crust
  • Country: France
Abstract
Attenuation of seismic waves in the crust and the upper mantle has been studied in three global rift systems: the Baikal rift system (Eurasia), the North Tanzanian divergence zone (Africa) and the Basin and Range Province (North America). Using the records of direct and coda waves of regional earthquakes, the single scattering theory [ Aki, Chouet, 1975 ], the hybrid model from [ Zeng, 1991 ] and the approach described in [ Wennerberg, 1993 ], we estimated the seismic quality factor ( Q C ), frequency parameter ( n ), attenuation coefficient (δ), and total attenuation ( Q T ). In addition, we evaluated the contributions of two components into total attenuation: ...
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Subjects
free text keywords: Baikal rift system, East African rift system, North American Basin and Range Province, attenuation of seismic waves, seismic quality factor, seismicity, coda waves, intrinsic attenuation, scattering attenuation, heat flow, [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology, [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography, [SDU.STU.TE]Sciences of the Universe [physics]/Earth Sciences/Tectonics, [SDU.STU.VO]Sciences of the Universe [physics]/Earth Sciences/Volcanology, Geology, Seismology, Attenuation coefficient, Rift, Anelastic attenuation factor, Attenuation, Scattering theory, Seismic wave, Coda, Mantle (geology), lcsh:Science, lcsh:Q
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