Isotopic Composition of Paleosol Carbonates and Organic     Matter
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Dr. Cerling will continue his NSF supported research and examine                the extent to which soil carbonates contain useful climatic                     information.  His preliminary research, under controlled modern                 conditions, has shown that carbon isotopes directly reflect the                 overlying plant community, and on this basis it is possible to                  determine the relative amounts of "C3" and "C4" species.  C4                    plants are adapted to water stressed conditions and thus provide                a useful climatic indicator.  Since oxygen isotope composition in               rainwater is affected by temperature and may vary by almost 20                  per mil, if this is preserved in paleosol carbonate it also may                 yield climatic information.  Dr. Cerling has analyzed several                   series of fossil soils associated with anthropologically                        significant materials and has extracted useful climatic signals.                                                                                                In his new research, Dr. Cerling will continue his study of both                modern and fossil soils.  He will examine some modern soils to                  further understand the oxygen isotopic record in paleosol                       carbonates and continue to work on soils formed on limestones so                that they may be used in paleoecologic reconstructions as well.                 He will also apply and evaluate these emerging techniques to                    paleoontologic and anthropologic sites in the Old World to shed                 light on climatic changes which occurred during the Miocene,                    Pliocene, and Pleistocene.                                                                                                                                      This research is important because, if successful, it will                      provide an important anthropological tool.  To understand how                   humans developed it is essential to understand the environments                 in which they lived and how these changed over time.  While                     techniques are well established for marine sediments, terrestrial               materials are much more difficult to interpret and very little                  work has been done.  This project should help to remedy the                     situation.
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{'Name': 'University of Utah', 'CityName': 'SALT LAKE CITY', 'ZipCode': '841129049', 'PhoneNumber': '8015816903', 'StreetAddress': '201 PRESIDENTS CIR', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Utah', 'StateCode': 'UT', 'CONGRESSDISTRICT': '01', 'CONGRESS_DISTRICT_ORG': 'UT01', 'ORG_UEI_NUM': 'LL8GLEVH6MG3', 'ORG_LGL_BUS_NAME': 'UNIVERSITY OF UTAH', 'ORG_PRNT_UEI_NUM': None}
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{'Code': '1393', 'Text': 'ARCHAEOMETRY'}
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