Dolomitization of Cambro-Ordovician Platform Carbonates,    Appalachians
{'Code': '06030101', 'Directorate': {'Abbreviation': 'GEO', 'LongName': 'Directorate For Geosciences'}, 'Division': {'Abbreviation': 'EAR', 'LongName': 'Division Of Earth Sciences'}}
{'SignBlockName': 'John A. Maccini', 'PO_EMAI': None, 'PO_PHON': None}
This research involves an integrated geologic, geochemical,                and isotopic study of platform dolomites in the Cambro-                         Ordovician of the U.S. Applachians in Virginia and adjacent                     states.  Two sequences selected from the 3 to 4 km thick                        passive margin succession and considered representative of the                  dolomite types in the sequence are the Early Cambrian Shady                     Dolomite (1500 m thick) and the Early Ordovician Knox Dolomite                  (600 m thick).  Possible dolomite types include hypersaline                     tidal-flat and possible shallow marine dolomite, shallow                        subsurface dolomite forming from brines or mixed fluids beneath                 flats, mixing zone dolomites (possibly associated with prograded                flats or with unconformities that cap the two successions),                     marine dolomites associated with the steep Cambrian platform                    margin and various types of burial dolomite, locally associated                 with MVT ore mineralization.                                                         The studies will be integrated with regional geologic                      studies involving computer modelling of platform sequences                      (which provides information on sea-level behavior, duration of                  cycle formation, progradation rates of tidal flats and migration                of early diagenetic zones, and duration of emergence of flats                   during regressive events).  For each dolomite type, data will                   be obtained on major and trace element chemistry, stable                        isotopic composition, and radiogenic Sr composition of the                      dolomites, as well as fluid inclusion data.  The effects of                     recrystallization or replacement of early dolomites in                          subsequent diagenetic environments will be determined.  The                     likely hydrologic and chemical systems involved in                              dolomitization history will be integrated will burial history                   plots that will provide timing of fluid migration and likely P-                 T conditions during diagenesis.
{'FirstName': 'James', 'LastName': 'Read', 'PI_MID_INIT': 'F', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'James F Read', 'EmailAddress': 'jread@vt.edu', 'NSF_ID': '000239578', 'StartDate': '08/01/1987', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'Virginia Polytechnic Institute and State University', 'CityName': 'BLACKSBURG', 'ZipCode': '240603359', 'PhoneNumber': '5402315281', 'StreetAddress': '300 TURNER ST NW', 'StreetAddress2': 'STE 4200', 'CountryName': 'United States', 'StateName': 'Virginia', 'StateCode': 'VA', 'CONGRESSDISTRICT': '09', 'CONGRESS_DISTRICT_ORG': 'VA09', 'ORG_UEI_NUM': 'QDE5UHE5XD16', 'ORG_LGL_BUS_NAME': 'VIRGINIA POLYTECHNIC INSTITUTE & STATE UNIVERSITY', 'ORG_PRNT_UEI_NUM': 'M515A1DKXAN8'}
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{'Code': '1571', 'Text': 'SCEC'}
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1987&All=true', 'xml': '8707737.xml'}