Interpretation of Single-Channel Seismic Reflection Records,

Abstract

The identification of signals recorded on a Single Channel Seismic reflection record is approached from instrumental environmental geometric and geologic viewpoints. Examples show that it is frequently possible to distinguish between noises, recorded instrumental artifacts, and acoustic impedence mixmatches indicative of geologically significant structural and sedimentological variations. Analog-to-digital conversion processes introduce little error into the data, but the failure to allow for vertical velocity gradients in the sedimentary column can lead to significant differences between true and apparent depths to reflectors. Failure to consider diffraction effects, vertical exaggeration effects, velocity effects and numerous other factors can lead to serious interpretation errors. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1977
Accession Number
ADA047511

Entities

People

  • J. Alan Ballard

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Acoustic Propagation
  • Acoustic Properties
  • Acoustic Waves
  • Acoustics
  • Diffraction
  • Electronic Circuits
  • Frequency
  • Gases
  • Geometry
  • Igneous Rocks
  • Measurement
  • Physical Properties
  • Pressure Distribution
  • Refraction
  • Seabed
  • Shock Waves
  • Signal Processing

Readers

  • Image Processing and Computer Vision.
  • Oceanography.
  • Regression Analysis.