Isotopic Biogechemistry of Biomarkers and Paleobarometry of CO2
{'Code': '06040302', 'Directorate': {'Abbreviation': 'GEO', 'LongName': 'Directorate For Geosciences'}, 'Division': {'Abbreviation': 'OCE', 'LongName': 'Division Of Ocean Sciences'}}
{'SignBlockName': 'Nicholas Anderson', 'PO_EMAI': 'nanderso@nsf.gov', 'PO_PHON': '7032924715'}
Dr. Hayes proposes to apply stable carbon isotopic                      techniques to organic biomarker compounds to investigate two                    problems using a single suite of Holocene-to-Pleiostocene                       hemipelagic sediment samples.  The first problem is to use carbon               isotopic evidence to resolve the controversy about the source(s)                (terrestrial and/or marine) of 24-ethylcholest-5-en-3B-ol (or B-                sitosterol) to marine sediments.  Isotopic compositions of                      sedimentary sterols will be compared to those of the same                       compound derived from known marine (coccolithophorid culture) and               terrestrial (land plant) sources.  The second problem is to test                a method to determine the atmospheric partial pressure of CO2                   (pCO2) for the Pleistocene-to-Holocene by measuring the carbon                  isotopic differences between each of two organic biomarker                      classes (tetrapyrroles and long chain alkenones) and coeval                     foraminiferal shells.  The validity of this technique will be                   checked by comparing these results against the 40,000 yr pCO2                   record measured in Antarctic and Greenland ice cores.//
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{'Name': 'Indiana University', 'CityName': 'BLOOMINGTON', 'ZipCode': '474057000', 'PhoneNumber': '3172783473', 'StreetAddress': '107 S INDIANA AVE', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Indiana', 'StateCode': 'IN', 'CONGRESSDISTRICT': '09', 'CONGRESS_DISTRICT_ORG': 'IN09', 'ORG_UEI_NUM': 'YH86RTW2YVJ4', 'ORG_LGL_BUS_NAME': 'TRUSTEES OF INDIANA UNIVERSITY', 'ORG_PRNT_UEI_NUM': None}
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{'Code': '1670', 'Text': 'Chemical Oceanography'}
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