The character and amplitude of 'discontinuous' bottom-simulating reflections in marine seismic data

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Hillman J. I. T., Cook A. E., Sawyer D. E., Kucuk H. M., Goldberg D. S.

EARTH AND PLANETARY SCIENCE LETTERS, cilt.459, ss.157-169, 2017 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 459
  • Basım Tarihi: 2017
  • Doi Numarası: 10.1016/j.epsl.2016.10.058
  • Dergi Adı: EARTH AND PLANETARY SCIENCE LETTERS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.157-169
  • Anahtar Kelimeler: BSR, gas hydrate, seismic, frequency content, resolution, HYDRATE STABILITY ZONE, GAS-HYDRATE, METHANE HYDRATE, BASIN, SEA, EVOLUTION, SEDIMENTS, MARGIN, CANYON
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

Bottom-simulating reflections (BSRs) identified in seismic data are well documented; and are commonly interpreted to indicate the presence of gas hydrates along continental margins, as well as to estimate regional volumes of gas hydrate. A BSR is defined as a reflection that sub-parallels the seafloor but is opposite in polarity and cross-cuts dipping sedimentary strata. BSRs form as a result of a strong negative acoustic impedance contrast. BSRs, however, are a diverse seismic phenomena that manifest in strikingly contrasting ways in different geological settings, and in different seismic data types.