Mantle Processes, Trace Elements and Kinetics
{'Code': '06030107', 'Directorate': {'Abbreviation': 'GEO', 'LongName': 'Directorate For Geosciences'}, 'Division': {'Abbreviation': 'EAR', 'LongName': 'Division Of Earth Sciences'}}
{'SignBlockName': 'John L. Snyder', 'PO_EMAI': None, 'PO_PHON': None}
The evolution of the upper mantle will be examined by analysis of               compositional zonation of minerals of xenoliths.  Electron and                  proton probe analysis will be combined to provide data both for                 major elements and for trace elements to levels of a few parts                  per million.  The results will be related to numerical                          simulations and to models in order to understand both processes                 and their rates.  Data on minerals in xenoliths with high                       equilibration temperatures will provide information on the                      movement of melts in the mantle and on the compositional                        evolution of "fertile" peridotite.  The zonations of major and                  trace elements will be used to interpret substitution mechanism,                partition coefficients, and interdiffusion effects in garnets.                  The temperature-composition histories of coarse-textured                        xenoliths with Cr-Al zoned garnets will be modeled, in order to                 learn how thermal events in the lithosphere are recorded by                     peridotite minerals at temperatures below 1100 C.
{'FirstName': 'Douglas', 'LastName': 'Smith', 'PI_MID_INIT': None, 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Douglas Smith', 'EmailAddress': None, 'NSF_ID': '000395756', 'StartDate': '01/01/1989', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'University of Texas at Austin', 'CityName': 'AUSTIN', 'ZipCode': '787121139', 'PhoneNumber': '5124716424', 'StreetAddress': '110 INNER CAMPUS DR', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Texas', 'StateCode': 'TX', 'CONGRESSDISTRICT': '25', 'CONGRESS_DISTRICT_ORG': 'TX25', 'ORG_UEI_NUM': 'V6AFQPN18437', 'ORG_LGL_BUS_NAME': 'UNIVERSITY OF TEXAS AT AUSTIN', 'ORG_PRNT_UEI_NUM': None}
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{'Code': '155700', 'Text': 'VOLCANOLOGY & MANTLE GEOCHEMIS'}
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1988&All=true', 'xml': '8816434.xml'}