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Vent Sites: 
Thiafi Bay
Max Temperature Category: 
Location on map: 
National Jurisdiction: 
Maximum or Single Reported Depth (mbsl): 
Minimum Depth (mbsl): 
Tectonic setting: 
Volcano Number (if applicable): 
Host Rock: 
Deposit Type: 
Notes on Vent Field Description: 
Varnavas et al. (1997): "a submarine hydrothermal field is described which has been discovered offshore Methana... associated with normal faults of NE-SW direction"; Hübner et al. (2004): "the region between Methana peninsula and Aegina Island is not marked by vigorous hydrothermal activity, but the bulk sediment and the fine fraction geochemical analysis suggests localised low-temperature hydrothermal activity at a regional scale. While the hydrothermal activity in the near-shore location of Thiafi Bay is widespread, hydrothermal signals in the deeper water sediments between Methana and Aegina are sparse and much more localised."; Dotsika et al. (2010): "In Methana, the thermal waters (EOT) have been well known since antiquity. Scripts by Pausanias, Strabo and Ovid exhibit their presence and fame during ancient times."
Notes Relevant to Biology: 
Year and How Discovered (if active, visual confirmation is listed first): 
nearshore: since antiquity; offshore: 1997 SCUBA
Discovery References (text): 
Varnavas, S., Halbach, P., Halbach, M., Rahders, E., Megalovasilis, P. (1997) Discovery of a submarine hydrothermal field and metal-rich hydrothermal deposit on the western part of the Hellenic Volcanic Arc, 9th European Union of Geosciences, Strasbourg, p. 539.
Other References (text): 
Dando et al. (2000) Hydrothermal studies in the aegean sea. Physics and Chemistry of the Earth, Part B: Hydrology, Oceans and Atmosphere 25: 1-8, doi:10.1016/S1464-1909(99)00112-4
Hübner et al. (2004) Geochemistry of hydrothermally influenced sediments off Methana (western Hellenic volcanic arc). Chemie der Erde - Geochemistry 64: 75-94.
D'Alessandro et al. (2008) Methana, the westernmost active volcanic system of the south Aegean arc (Greece): Insight from fluids geochemistry. Journal of Volcanology and Geothermal Research 178: 818-828.
Dotsika, E. et al. (2010) Fluid geochemistry of the Methana Peninsula and Loutraki geothermal area, Greece. Journal of Geochemical Exploration 104: 97–104.