AMS 14C Dating of Arctic Lake Sediments
{'Code': '01020304', 'Directorate': {'Abbreviation': 'O/D', 'LongName': 'Office Of The Director'}, 'Division': {'Abbreviation': 'OPP', 'LongName': 'Office of Polar Programs'}}
{'SignBlockName': 'Mary Campbell', 'PO_EMAI': None, 'PO_PHON': None}
This award supports the study of a series of Arctic lake-sediment               cores in a program to ascertain the best methods of obtaining                   reliable 14C dates on such material.  The paleoclimate record in                lake sediments gives a very complete record of climatic change,                 and as such these samples represent ideal material for the study                of environmental changes which have occurred over the last                      millennium, and tens of millennia.  Earlier studies have                        demonstrated that radiocarbon dating of lake sediments can be                   problematic, due to the incorporation of fossil and reworked                    carbon, and uptake of dissolved carbonate by aquatic plants and                 organisms.  This project is a coordinated effort combining the                  expertise of the INSTAAR group at the University of Colorado with               that of the AMS radiocarbon dating laboratory at University of                  Arizona.  Research will focus on extracting 14C information from a              variety of physical and chemical separates of sediment as a                     function of depth in a series of lake cores showing both                        "reliable" and "problematic" dates.  This program will develop of               procedures to produce more reliable dates for the  expected                     increase in the study of Arctic lake sediment.
[{'FirstName': 'James', 'LastName': 'White', 'PI_MID_INIT': 'W', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'James W White', 'EmailAddress': 'james.white@colorado.edu', 'NSF_ID': '000346258', 'StartDate': '06/15/1989', 'EndDate': None, 'RoleCode': 'Co-Principal Investigator'}, {'FirstName': 'Gifford', 'LastName': 'Miller', 'PI_MID_INIT': 'H', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Gifford H Miller', 'EmailAddress': 'gmiller@colorado.edu', 'NSF_ID': '000318100', 'StartDate': '06/15/1989', 'EndDate': None, 'RoleCode': 'Principal Investigator'}]
{'Name': 'University of Colorado at Boulder', 'CityName': 'Boulder', 'ZipCode': '803090001', 'PhoneNumber': '3034926221', 'StreetAddress': '3100 MARINE ST', 'StreetAddress2': 'STE 481 572 UCB', 'CountryName': 'United States', 'StateName': 'Colorado', 'StateCode': 'CO', 'CONGRESSDISTRICT': '02', 'CONGRESS_DISTRICT_ORG': 'CO02', 'ORG_UEI_NUM': 'SPVKK1RC2MZ3', 'ORG_LGL_BUS_NAME': 'THE REGENTS OF THE UNIVERSITY OF COLORADO', 'ORG_PRNT_UEI_NUM': None}
{'Name': None, 'CityName': None, 'StateCode': None, 'ZipCode': None, 'StreetAddress': None, 'CountryCode': None, 'CountryName': None, 'StateName': None, 'CountryFlag': None, 'CONGRESSDISTRICT': None, 'CONGRESS_DISTRICT_PERF': '""'}
{'Code': '528000', 'Text': 'ANS-Arctic Natural Sciences'}
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1988&All=true', 'xml': '8822223.xml'}