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1999 Projects

Current Projects

Green_Ball.gif (257 bytes) Benthic processes
Green_Ball.gif (257 bytes) Midwater research
Green_Ball.gif (257 bytes) Upper ocean biogeochemistry
Green_Ball.gif (257 bytes) New research platforms
Green_Ball.gif (257 bytes) ROV improvements
Green_Ball.gif (257 bytes) Mooring improvements
Green_Ball.gif (257 bytes) New in-situ Instruments
Green_Ball.gif (257 bytes) Information management and archiving
Green_Ball.gif (257 bytes) Education and outreach
Green_Ball.gif (257 bytes) 1998 Projects
Green_Ball.gif (257 bytes) 1997 Projects

 

1999 Projects: Benthic processes

Processes that form and modify submarine volcanoes

Project lead/manager: David Clague
Project team: David Caress, AlicÚ Davis, Gerry Hatcher, Norman Maher, and Jennifer Reynolds

The main goal of this project is to understand the structural evolution of submarine volcanoes and the processes that generate and modify magmas erupted beneath the sea. The project has numerous strands, each of which addresses specific aspects of this broad goal. Tasks for 1999 include the completion of several ongoing studies on the geochemistry of mid-ocean ridge basalts, near-ridge seamounts, and Hawaii and other linear-island chains such as the Austral and Line islands. Studies will continue on the ages and origins of seamounts off Central California. These include northeast-southwest-trending volcanic ridges located at the continental margin, such as the Davidson Seamounts, which were formed on an abandoned ridge axis, and the Taney Seamounts, which evolved near the now-defunct Pacific-Farallon spreading center. New studies will focus on hydrothermal circulation that cools magmatic systems at Loihi Seamount and the role of sediment assimilation in modifying the compositions of lava erupted at the southern Gorda Ridge, offshore Oregon.

Next: Margin seismology: Data processing and analysis

Last updated: 07 October 2004