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Brown: Dives at Cloud...on to CASM |
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Science News | |||||||
NOAA Ship Ron Brown - ROV Cruise
ROPOS dive 625 was focused on putting down and recovering a number of different experiments at the Marker 33/Cloud vent site on the 1998 lava flow, including the interactive fluid sampler for its short-term deployment at Cloud vent. The next ROPOS dive (#626) will be our first visit to the CASM vent field since 1999. CASM is located at the northern edge of Axial caldera and was the first hydrothermal vent discovered on the Juan de Fuca Ridge, back in 1983. More... |
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R/V Wecoma - CTD Cruise
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Teacher Logbooks | ||||
NOAA Ship Ron Brown - Jeff Goodrich
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R/V Wecoma - Missy Holzer
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Jeff: What project are you working on along the Juan de Fuca Ridge? Susan: My project deals with a location south of Axial Volcano on the south Cleft segment of the Juan de Fuca Ridge. I'm looking at the intersection of the southern Cleft segment of Juan de Fuca Ridge with the Blanco Fracture Zone, a big transform fault. I'm studying the "cold edge effect." It's a geochemical phenomenon that occurs due to the interaction of the hydrothermally active ridge with the hydrothermally inactive transform fault. The Blanco Fracture Zone basically cools down and truncates the magma chamber underneath the ridge. This causes melting to occur more quickly, and the magma doesn't have as much time to crystallize. More... |
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