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Active seepage in two contrasting pockmark fields in the Patras and Corinth gulfs, Greece

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Abstract

Two pockmark fields, located along the coastal zone of the Patras and Corinth gulfs, Greece were surveyed in detail. The pockmark fields, which are 30 km apart, are formed in shallow waters at depths of 20–40 m and are about 0.5–1 km from the shoreline. The oceanographic data suggest that two different mechanisms were responsible for their formation. The pockmark field in the Patras Gulf appears to have been formed as a result of methane seepage from the seabed, whereas the field in the Corinth Gulf appears to have resulted from groundwater seepage.

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References

  • Bange HW, Rapsomanikis S, Andreae MO (1996) The Aegean Sea as a source of atmospheric nitrous oxide and methane. Mar Chem 53:41–49

    Article  CAS  Google Scholar 

  • Bussmann I, Suess E (1998) Groundwater seepage in Eckernförde Bay (Western Baltic Sea): effect on methane and salinity distribution of the water column. Cont Shelf Res 18:1795–1806

    Article  Google Scholar 

  • Hasiotis T, Papatheodorou G, Kastanos N, Ferentinos G (1996) A pockmark field in the Patras Gulf (Greece) and its activation during the 14/7/93 seismic event. Mar Geol 130:333–344

    Article  Google Scholar 

  • Hovland M, Judd AG (1988) Seabed pockmarks and seepages. Graham and Trotman, London

  • Hovland M, Judd AG, Lewis KH (1984) Characteristic features of pockmarks on the North Sea Floor and Scotian Shelf. Sedimentology 31:471–480

    Google Scholar 

  • Hovland M, Gardner JV, Judd AG (2002) The significance of pockmarks to understanding fluid flow processes and geohazards. Geofluids 2:127–136

    Article  Google Scholar 

  • Jayakumar DA, Naqvi SWA, Narvekar PV, George MD (2001) Methane in coastal and offshore waters of the Arabian Sea. Mar Chem 74:1–13

    Article  CAS  Google Scholar 

  • Judd AG, Hovland M, Dimitrov LI, Garcia G, Jukes V (2002) The geological methane budget at continental margins and its influence on climate change. Geofluids 2:109–126

    Article  CAS  Google Scholar 

  • Khandriche A, Werner F (1995) Freshwater-induced pockmarks in Bay of Eckernförde, Western Baltic. In: Mojski JE (ed) Proc 3rd Marine Geological Conf The Baltic, Warsaw. Prace Panstwowego Inst Geol CXLIX:151–154

    Google Scholar 

  • Lammers S, Suess E, Hovland M (1995) A large methane plume east of Bear Island (Barents Sea): implications for the marine methane cycle. Geol Rundsch 84(1):59–66

    CAS  Google Scholar 

  • Papatheodorou G, Hasiotis T, Ferentinos G (1993) Gas-charged sediments in the Aegean and Ionian Seas, Greece. Mar Geol 112:171–184

    CAS  Google Scholar 

  • Papatheodorou G, Christodoulou D, Hasiotis T, Ferentinos G (2002) Gas-charged sediments and associated seabed morphological features in the Aegean and Ionian Seas, Greece. In: Abstr Vol 7th Int Conf Gas in Marine Sediments and Natural Hydrocarbon Seepage in the World Oceans with Applications to the Caspian Sea, 7–12 October 2002, Baku, Azerbaijan. Nafta-press, Baku, pp 156–158

  • Paull C, Ussler IW, Maher N, Greene HG, Rehder G, Lorenson T, Lee H (2002) Pockmarks of Big Sur, California. Mar Geol 181:323–335

    Article  CAS  Google Scholar 

  • Perissoratis C, Piper DJW, Lykousis V (2000) Alternating marine and lacustrine sedimentation during late Quaternary in the Gulf of Corinth rift basin, central Greece. Mar Geol 167:391–411

    Article  Google Scholar 

  • Soter S (1999) Macroscopic seismic anomalies and submarine pockmarks in the Corinth–Patras rift, Greece. Tectonophysics 308:275–290

    Article  Google Scholar 

  • Whiticar M, Werner F (1981) Pockmarks: submarine vents of natural gas or freshwater seeps? Geo-Mar Lett 1:193–199

    Google Scholar 

Download references

Acknowledgements

This study was carried out as part of the ASSEM project which is funded by the European Union (contract EVK3-CT2001-00051). We wish to thank Gerhard Bohrmann and Joe Kelly for their constructive and thorough reviews which greatly improved this paper. D. Christodoulou was supported by the State Scholarships Foundation of Greece.

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Christodoulou, D., Papatheodorou, G., Ferentinos, G. et al. Active seepage in two contrasting pockmark fields in the Patras and Corinth gulfs, Greece. Geo-Mar Lett 23, 194–199 (2003). https://doi.org/10.1007/s00367-003-0151-0

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  • DOI: https://doi.org/10.1007/s00367-003-0151-0

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