Periodicity of Volcanism and Hydrothermal Activity on the   Gorda Ridge
{'Code': '06040204', 'Directorate': {'Abbreviation': 'GEO', 'LongName': 'Directorate For Geosciences'}, 'Division': {'Abbreviation': 'OCE', 'LongName': 'Division Of Ocean Sciences'}}
{'SignBlockName': 'Bruce T. Malfait', 'PO_EMAI': None, 'PO_PHON': None}
The Gorda Ridge is part of the global system of mid-ocean               ridges along which new ocean floor is created. The southern third               of the ridge extends for a length of about 120 km off the                       northern California coast and is characterized by a deep axial                  valley covered by thick sediment fill. At least five volcanic                   centers rise above this sediment cover at an average spacing of                 15 km. These volcanoes provide a unique opportunity to study the                frequency of volcanic activity at mid-ocean ridges, since the                   products of this volcanism should be recorded in the accumulating               sediment.                                                                               The present project will use a set of previously collected              cores from this area to examine the episodicity of discrete                     volcanic events and the chemical evolution of discrete magmatic                 centers in the rift valley.
{'FirstName': 'Martin', 'LastName': 'Fisk', 'PI_MID_INIT': 'R', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Martin R Fisk', 'EmailAddress': 'mfisk@coas.oregonstate.edu', 'NSF_ID': '000088738', 'StartDate': '03/01/1989', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
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{'Code': '5720', 'Text': 'OCEAN DRILLING PROGRAM'}
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