US-France Cooperative Research:  The Geochemistry of The    Beryllium Isotopes
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{'SignBlockName': 'Pierre Perrolle', 'PO_EMAI': None, 'PO_PHON': None}
This award will support collaborative research between Dr. John                 Edmond and his research group at the Massachusetts Institute of                 Technology and Dr. Grant Raisbeck, Centre de Spectrometrie                      Nucleaire et de Spectrometrie de Masse, Orsay, France.  The                     objective of the proposed project is the investigation of the                   geochemistry of the isotopes of beryllium with a view to using                  Be-10 as a dating tool, similar to Carbon 14.  The long lived                   isotope Be-10 is produced by cosmic ray induced spallation                      reactions in the atomosphere and in the upper meters of the earth's             surface.  The stable isotope Be-9 is derived from the weathering of             rocks.  If the isotopes behave coherently in the cycles of                      transport and deposition, then the Be-10/Be-9 couple can be used                for dating in a manner analogous to Carbon 14/Carbon 12.  However               the time scales would be much longer, i.e. 10 million years as                  opposed to 50 thousand.  In addition, Be-10 produced in rocks by                cosmic ray bombardment could be used to date the exposure of the                rock.                                                                                                                                                           In this project, sample collection and preparation, principally                 from the Orinoco Basin in Venezuela, will be the responsibility of              the MIT group.  Both the U.S. and French groups have extensive                  expertise in the geochemistry of Be-9.  Results of this research                may provide valuable information on the potential uses of Be-10 as              a geochronometer.
{'FirstName': 'John', 'LastName': 'Edmond', 'PI_MID_INIT': 'M', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'John M Edmond', 'EmailAddress': None, 'NSF_ID': '000458757', 'StartDate': '03/01/1989', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'Massachusetts Institute of Technology', 'CityName': 'CAMBRIDGE', 'ZipCode': '021394301', 'PhoneNumber': '6172531000', 'StreetAddress': '77 MASSACHUSETTS AVE', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Massachusetts', 'StateCode': 'MA', 'CONGRESSDISTRICT': '07', 'CONGRESS_DISTRICT_ORG': 'MA07', 'ORG_UEI_NUM': 'E2NYLCDML6V1', 'ORG_LGL_BUS_NAME': 'MASSACHUSETTS INSTITUTE OF TECHNOLOGY', 'ORG_PRNT_UEI_NUM': 'E2NYLCDML6V1'}
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{'Code': '5918', 'Text': 'FRANCE'}
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