Nature of Silicate Melts: Role of Highly Charged Cations
{'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 continuation of the research supported by NSF grant                   EAR-8416796 to determine the solution behavior of highly charged                cations in peralkaline, metaluminous and peraluminous "granitic"                melts.  The proposed research involves the determination of                     (1) the redox equilibria of Fe+2 -Fe+3 in K2O-Al2O3-SiO2 melts                  doped with TiO2, P2O5, Group 1A and Group 2A elements, (2) the                  coordination of Fe+3 in these melts using Mossbauer spectroscopy,               (3) the saturation of unary oxide phases such as rutile,                        cassiterite among others as functions of Group 1 and, Group 2                   elements, P2O5, TiO2 and B2O3 contents, (4) the saturation of                   unary oxide phases as functions of H2O content in peralkaline                   melts, (5) vibration and NMR spectra K2O.5SiO2 glasses containing               Period 5 elements, (6) two liquid partitioning experiments in                   flourine and chlorine-doped melts.  These studies combined with                 thermodynamic modeling of the equilibria will increase our                      understanding of the complex interactions that occur in these                   important end-member types of granitic magmas.
{'FirstName': 'Paul', 'LastName': 'Hess', 'PI_MID_INIT': 'C', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Paul C Hess', 'EmailAddress': 'Paul_Hess@brown.edu', 'NSF_ID': '000107498', 'StartDate': '06/01/1988', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'Brown University', 'CityName': 'PROVIDENCE', 'ZipCode': '029129100', 'PhoneNumber': '4018632777', 'StreetAddress': '1 PROSPECT ST', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Rhode Island', 'StateCode': 'RI', 'CONGRESSDISTRICT': '01', 'CONGRESS_DISTRICT_ORG': 'RI01', 'ORG_UEI_NUM': 'E3FDXZ6TBHW3', 'ORG_LGL_BUS_NAME': 'BROWN UNIVERSITY', 'ORG_PRNT_UEI_NUM': None}
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{'Code': '1573', 'Text': 'Petrology and Geochemistry'}
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