The Evolution of Mantle Melting During Development of the    Southernmost Basin and Range Province, Mexico
{'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}
This is a continuing project in which detailed, integrated                      studies have already been conducted of the younger, mantle-                     derived basanites of San Luis Potosi, including measurement of Sr               and Nd isotope ratios.  These data indicate at least three mantle               source components.  This award will enable the PIs to perform Pb                isotopic analyses on the same samples, and to expand field based                investigations to include the Durango area and the older,                       magacryst-rich basenites from both areas.  They will also attempt               to deduce total Nd and Sr budgets in the xenoliths.  It should                  then be possible to trace  the history of mantle melting for a                  500-km transect across the southernmost Basin and Range Province                throughout the period of extreme tectonism.  Age dating by both K-Ar            and Ar-Ar methods will be done at Cal-Berkeley.  Probe studies                  and leaching of clinopyroxenes from lherzolites will be carried                 out prior to isotopic analysis.
[{'FirstName': 'James', 'LastName': 'Luhr', 'PI_MID_INIT': 'F', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'James F Luhr', 'EmailAddress': 'luhr@volcano.si.edu', 'NSF_ID': '000298263', 'StartDate': '01/01/1989', 'EndDate': None, 'RoleCode': 'Principal Investigator'}, {'FirstName': 'Frank', 'LastName': 'Podosek', 'PI_MID_INIT': 'A', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Frank A Podosek', 'EmailAddress': 'fap@levee.wustl.edu', 'NSF_ID': '000103490', 'StartDate': '01/01/1989', 'EndDate': None, 'RoleCode': 'Co-Principal Investigator'}]
{'Name': 'Washington University', 'CityName': 'SAINT LOUIS', 'ZipCode': '63110', 'PhoneNumber': '3147474134', 'StreetAddress': 'ONE BROOKINGS DR', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Missouri', 'StateCode': 'MO', 'CONGRESSDISTRICT': '01', 'CONGRESS_DISTRICT_ORG': 'MO01', 'ORG_UEI_NUM': 'L6NFUM28LQM5', 'ORG_LGL_BUS_NAME': 'WASHINGTON UNIVERSITY, THE', 'ORG_PRNT_UEI_NUM': None}
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{'Code': '1557', 'Text': 'VOLCANOLOGY & MANTLE GEOCHEMIS'}
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1988&All=true', 'xml': '8816987.xml'}