AMS 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 C-14 dates on such material.  The paleoclimate record in               lake sediments gives a very complete record of climatic change;                 these samples, therefore, are critical for the study of 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 Arizona.  This                      research program would focus on extracting C-14 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 project will allow the                development of procedures to produce more reliable dates for the                expected increase in the study of Arctic lake sediment.
[{'FirstName': 'A. J. Timothy', 'LastName': 'Jull', 'PI_MID_INIT': None, 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'A. J. Timothy Jull', 'EmailAddress': 'jull@u.arizona.edu', 'NSF_ID': '000423115', 'StartDate': '08/01/1989', 'EndDate': None, 'RoleCode': 'Principal Investigator'}, {'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': '08/01/1989', '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': '08/01/1989', '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}
{'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': '8822235.xml'}