Carbon Dating of Polar Ice Cores
{'Code': '01020301', 'Directorate': {'Abbreviation': 'O/D', 'LongName': 'Office Of The Director'}, 'Division': {'Abbreviation': 'OPP', 'LongName': 'Office of Polar Programs'}}
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As part of the Greenland Ice Sheet Project, this investigation                  will carbon-14 date atmospheric gases trapped in relatively small               (a few kg) samples of polar ice cores.  The technique would be to               place the ice in a vacuum system and the sublime the ice onto the               surface of a -80C degrees cold trap.  The gas released by this                  procedure would be passed through a multipass trap held at liquid-              nitrogen temperature, which would enable all the carbon dioxide to              be recovered.  The CO2 sample so obtained would be accurately                   diluted and converted into a graphite target for 14C determination              by accelerator mass spectrometry.  The atmospheric gases other                  than CO2 (and N2O) would be trapped on a molecular sieve and be                 available for other studies related to the paleoclimatology of the              northern hemisphere.
[{'FirstName': 'Alexander', 'LastName': 'Wilson', 'PI_MID_INIT': 'T', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Alexander T Wilson', 'EmailAddress': 'awilson@ccit.arizona.edu', 'NSF_ID': '000288047', 'StartDate': '03/01/1989', 'EndDate': None, 'RoleCode': 'Principal Investigator'}, {'FirstName': 'Douglas', 'LastName': 'Donahue', 'PI_MID_INIT': 'J', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Douglas J Donahue', 'EmailAddress': 'djd@physics.arizona.edu', 'NSF_ID': '000447170', 'StartDate': '03/01/1989', 'EndDate': None, 'RoleCode': 'Co-Principal Investigator'}]
{'Name': 'University of Arizona', 'CityName': 'TUCSON', 'ZipCode': '85721', 'PhoneNumber': '5206266000', 'StreetAddress': '845 N PARK AVE RM 538', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Arizona', 'StateCode': 'AZ', 'CONGRESSDISTRICT': '07', 'CONGRESS_DISTRICT_ORG': 'AZ07', 'ORG_UEI_NUM': 'ED44Y3W6P7B9', 'ORG_LGL_BUS_NAME': 'UNIVERSITY OF ARIZONA', 'ORG_PRNT_UEI_NUM': None}
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{'Code': '528000', 'Text': 'ANS-Arctic Natural Sciences'}
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