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Mount Jourdanne

Name Alias(es): 
Mt. Jourdanne
Vent Sites: 
Maximum Temperature: 
Max Temperature Category: 
Location on map: 
National Jurisdiction: 
Maximum or Single Reported Depth (mbsl): 
Minimum Depth (mbsl): 
Tectonic setting: 
Full Spreading Rate (mm/a): 
Volcano Number (if applicable): 
Host Rock: 
MORB, E-MORB, ultramafic
Deposit Type: 
Notes on Vent Field Description: 
Segment 11, SWIR; situated at top of an axial volcanic ridge; massive sulfides include chimneys, mounds, and clastic ores; first discovery of sulfide chimneys at ultraslow SWIR
Notes Relevant to Biology: 
observed no "faunal relicts"
Year and How Discovered (if active, visual confirmation is listed first): 
1998 submersible Shinkai 6500
Discovery References (text): 
Fujimoto et al., InterRidge News 8(1), 22-24, 1999, First submersible investigations of mid-ocean ridges in the Indian Ocean
Muench, U., Lalou, C., Halbach, P., and Fujimoto, H. (2001) Relict hydrothermal events along the super-slow Southwest Indian spreading ridge near 63°56′E—mineralogy, chemistry and chronology of sulfide samples. Chemical Geology 177: 341-349.
Other References (text): 
Muench, U. et al. (2000) Sea-floor hydrothermal mineralization from the Mt. Jourdanne, Southwest Indian Ridge. JAMSTEC J. Deep Sea Res. 16: 125-132
Nayak, B. and Halbach, P. (2005) Sequence of Hydrothermal Mineralization at Mount Jourdanne, Southwest Indian Ridge (SWIR), and its significance. Abstract S4-HP-20T, Workshop on Tectonic & Oceanic Processes along the Indian Ocean Ridge System, National Institute of Oceanography, India, 19 - 21 January 2005.