Mineral Elasticity by Brillouin Scattering at One Atm. and  High Pressure
{'Code': '06030204', 'Directorate': {'Abbreviation': 'GEO', 'LongName': 'Directorate For Geosciences'}, 'Division': {'Abbreviation': 'EAR', 'LongName': 'Division Of Earth Sciences'}}
{'SignBlockName': 'Michael A. Mayhew', 'PO_EMAI': None, 'PO_PHON': None}
Accurate values of the elastic properties of candidate mantle              phases are of fundamental importance for placing constraints upon               the mineralogy and chemistry of the Earth's interior.  Although                 clinopyroxenes and garnets are essential major constituents of all              contemporary models of upper mantle mineralogy, the elastic                     properties of these minerals are undetermined for many relevant                 compositions.  The overall goal of this research program is to                  define the effects of chemical composition and crystal structure                on the elasticity of geophysically important materials.  The PI                 will determine the elastic properties of clinopyroxene and garnet               single crystals under ambient conditions by Brillouin scattering                measurements, will initiate an experimental program to determine                the elastic properties of minerals at high pressure by Brillouin                scattering measurements on samples compressed in a diamond anvil                cell.  The aim of these experiments is to obtain pressure                       derivatives of the bulk and shear moduli for the mantle minerals.               Extremely few reliable values of such properties are presently                  available.  These results will provide an improved basis for                    testing mineralogical models of the Earth's upper mantle and                    transition zone, and will greatly enhance our understanding of how              chemical and crystal structural changes affect mineral elasticity               within silicate solid solutions.
{'FirstName': 'Jay', 'LastName': 'Bass', 'PI_MID_INIT': 'D', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Jay D Bass', 'EmailAddress': 'jaybass@uiuc.edu', 'PI_PHON': '2173331018', 'NSF_ID': '000170169', 'StartDate': '05/15/1988', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'University of Illinois at Urbana-Champaign', 'CityName': 'URBANA', 'ZipCode': '618013620', 'PhoneNumber': '2173332187', 'StreetAddress': '506 S WRIGHT ST', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Illinois', 'StateCode': 'IL', 'CONGRESSDISTRICT': '13', 'CONGRESS_DISTRICT_ORG': 'IL13', 'ORG_UEI_NUM': 'Y8CWNJRCNN91', 'ORG_LGL_BUS_NAME': 'UNIVERSITY OF ILLINOIS', 'ORG_PRNT_UEI_NUM': None}
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[{'Code': '1574', 'Text': 'Geophysics'}, {'Code': '9120', 'Text': 'CROSS-DIRECTORATE PROGRAMS'}]
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