Geo-Marine Letters

, Volume 21, Issue 2, pp 103–122

Distribution of free gas in marine sediments: a global overview

  •  P. Fleischer
  •  T. Orsi
  •  M. Richardson
  •  A. Anderson

DOI: 10.1007/s003670100072

Cite this article as:
Fleischer, P., Orsi, T., Richardson, M. et al. Geo-Mar Lett (2001) 21: 103. doi:10.1007/s003670100072

Abstract.

To quantify the global distribution of free gas in shallow marine sediments, we have identified and indexed over 100 documented cases in the scientific and engineering literature. Our survey confirms previous assumptions, primarily that gas bubbles are ubiquitous in the organic-rich muds of coastal waters and shallow adjacent seas. Acoustic turbidity, as recorded during seismo-acoustic surveys, is the most frequently cited evidence used to infer the presence of seafloor gas. Biogenic methane predominates within these shallow subbottom deposits. Because of their global prevalence, growing interest in gassy marine sediments is understandable, as their presence can have profound scientific, engineering and environmental significance.

Copyright information

© Springer-Verlag 2001

Authors and Affiliations

  •  P. Fleischer
    • 1
  •  T. Orsi
    • 2
  •  M. Richardson
    • 1
  •  A. Anderson
    • 3
  1. 1.Naval Research Laboratory, Stennis Space Center, MS 39529-5004, USA
  2. 2.Planning Systems Incorporated, 115 Christian Lane, Slidell, LA 70458, USA
  3. 3.Department of Oceanography, Texas A&M University, College Station, TX 77843-3146, USA
  4. 4.Present address: Naval Oceanographic Office, Stennis Space Center, MS 39522-5001, USA