Temporal and Geochemical Evolution of the Society Islands   Hotspot Lineament
{'Code': '06030107', 'Directorate': {'Abbreviation': 'GEO', 'LongName': 'Directorate For Geosciences'}, 'Division': {'Abbreviation': 'EAR', 'LongName': 'Division Of Earth Sciences'}}
{'SignBlockName': 'John L. Snyder', 'PO_EMAI': None, 'PO_PHON': None}
This project is to continue studies of the temporal and                         petrochemical evolution of the Society Islands chain.  Volcanic                                                                                                 and plutonic rocks and upper mantle xenoliths have been                         collected                                                                       to evaluate the parental magmas and differentiation mechanisms                  for alkaline oceanic islands and geochemical variations within                  these volcanoes.  These studies will contrast with the better                   known, but perhaps atypical, tholeiitic Hawaiian volcanoes.                     Both                                                                            lineaments are thought to arise from Pacific plate motion over                  stationary hotspots, and the contrasting geochemical evolutions                                                                                                 should reveal complexities in hotspot structure and possible                    melt                                                                            contributions from the oceanic lithosphere.  Over 150 samples                   collected from two volcanoes on the island of Tahiti have been                  described petrographically and their ages determined.  These                    investigations will now be extended to other volcanoes in the                   Society Islands and will involve a collaborative program of                     radiometric, geochemical and esperimental studies at Oregon                     State, and isotopic analyses by William White at Cornell.  A                    large number of new samples and geological maps are being                                                                                                       supplied by French volcanologists R. Brousse and H. Barsczus.
[{'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': '07/01/1987', 'EndDate': None, 'RoleCode': 'Co-Principal Investigator'}, {'FirstName': 'Robert', 'LastName': 'Duncan', 'PI_MID_INIT': 'A', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Robert A Duncan', 'EmailAddress': 'rduncan@coas.oregonstate.edu', 'NSF_ID': '000231111', 'StartDate': '07/01/1987', 'EndDate': None, 'RoleCode': 'Principal Investigator'}]
{'Name': 'Oregon State University', 'CityName': 'CORVALLIS', 'ZipCode': '973318655', 'PhoneNumber': '5417374933', 'StreetAddress': '1500 SW JEFFERSON AVE', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Oregon', 'StateCode': 'OR', 'CONGRESSDISTRICT': '04', 'CONGRESS_DISTRICT_ORG': 'OR04', 'ORG_UEI_NUM': 'MZ4DYXE1SL98', 'ORG_LGL_BUS_NAME': 'OREGON STATE UNIVERSITY', 'ORG_PRNT_UEI_NUM': None}
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{'Code': '1557', 'Text': 'VOLCANOLOGY & MANTLE GEOCHEMIS'}
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1987&All=true', 'xml': '8708247.xml'}