Marine Geological Surveying and Sampling

1. Front Matter

   Pages i-ix

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2. Surveying Techniques

   1. Front Matter

      Pages 1-1

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   2. Deep Sea Navigation Techniques

      • K. G. Robertson

      Pages 3-8

   3. Modern Swathe Sounding and Sub-Bottom Profiling Technology for Research Applications: The Atlas Hydrosweep and Parasound Systems

      • J. A. Grant, R. Schreiber

      Pages 9-19

   4. GLORIA Image Processing: The State of the Art

      • R. C. Searle, T. P. Le Bas, N. C. Mitchell, M. L. Somers, L. M. Parson, Ph. Patriat

      Pages 21-39

   5. High-Resolution Seismic Reflection Surveying of Shallow Marine and Estuarine Environments

      • J. M. Reynolds

      Pages 41-48

   6. A Fixed Receiver for Recording Multichannel Wide-Angle Seismic Data on the Seabed

      • C. M. R. Roberts, M. C. Sinha

      Pages 49-57

   7. An Active Source Electromagnetic Sounding System for Marine Use

      • M. C. Sinha, P. D. Patel, M. J. Unsworth, T. R. E. Owen, M. R. G. Maccormack

      Pages 59-68

   8. Long-Range Underwater Photography in the Deep Ocean

      • Q. Huggett

      Pages 69-81

3. Sampling Techniques

   1. Front Matter

      Pages 83-83

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   2. Current Methods for Obtaining, Logging and Splitting Marine Sediment Cores

      • P. P. E. Weaver, P. J. Schultheiss

      Pages 85-100

   3. Observation of Corer Penetration and Sample Entry during Gravity Coring

      • W. R. Parker, G. C. Sills

      Pages 101-107

   4. Ocean Drilling Program (ODP) Deep Sea Coring Techniques

      • M. A. Storms

      Pages 109-130

   5. The Status of Geological Dredging Techniques

      • R. B. Kidd, Q. J. Huggett, A. T. S. Ramsay

      Pages 131-143

   6. The Use of Sediment Traps in High-Energy Environments

      • J. White

      Pages 145-152

   7. Pore Pressures in Marine Sediments: An Overview of Measurement Techniques and Some Geological and Engineering Applications

      • P. J. Schultheiss

      Pages 153-168

4. Back Matter

   Pages 169-169

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This collection of papers originates from a meeting are in current use on board UK research vessels. organized in May 1988 at the Geological Society, Marine geological exploration requires information under three further headings: (i) the "shape" of the London, under the auspices of its Marine Studies Group. The meeting was concerned with reviewing sea floor, (ii) the nature of the rocks and sediments the present state-of-the-art of marine geological and which lie at its surface, and (iii) the nature of deeper geophysical sampling and surveying techniques. structures. Studies of the shape of the sea floor The pace of scientific exploration of the ocean (bathymetry) are based primarily on echo sounder basins has increased dramatically over the past few and side-scan sonar surveying. Technology in this decades in response to interest in the global tectonic field has seen major advances over the past two processes which control their long-term evolution decades, with the development of new ceramic ma­ and the regional and local sedimentary and tectonic terials to provide more efficient and powerful trans­ ducers, the increasing use of digital data processing processes which shape them, as well as more practi­ cal questions such as the nature and extent of off­ techniques to improve the quality of the signal from shore mineral resources, problems of waste disposal the sea floor, and the introduction of new design at sea and the response of sea level to global climatic concepts to provide higher resolution records.

• marine
• surveying
• economic geology

• Oceanography Department, University of Southampton, Southampton, UK

  E. A. Hailwood

• Geology Department, University College of Wales, Cardiff, UK

  R. B. Kidd

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