Crystal-Chemical and Thermodynamic Behavior of Iron in      Amphiboles: Collaborative Research
{'Code': '06030107', 'Directorate': {'Abbreviation': 'GEO', 'LongName': 'Directorate For Geosciences'}, 'Division': {'Abbreviation': 'EAR', 'LongName': 'Division Of Earth Sciences'}}
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The proportions of ferric and ferrous iron in a given amphibole                 are determined by a complex interaction between intensive                       parameters such as temperature and pressure and  crystal-chemical               parameters such as crystal structure.  Research to determine                    these properties will be continued.  The approach consists of                   experimental treatment of amphiboles followed by thorough                       characterization of run products by x-ray, optical, wet chemical,               and spectroscopic techniques.  The results will have specific                   applications in relating the compositions of natural amphiboles                 to intensive parameters in the environment of formation.  More                  fundamental understanding will come from the defining of the                    interrelaionship between chemical, crysallographic, and                         thermodynamic properties of a major rock-forming mineral group.                 The end result will be a better understanding of amphibole group                minerals and the environments in which rocks have formed.
{'FirstName': 'Robert', 'LastName': 'Popp', 'PI_MID_INIT': 'K', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Robert K Popp', 'EmailAddress': 'popp@geo.tamu.edu', 'NSF_ID': '000307056', 'StartDate': '01/01/1989', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
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{'Code': '157300', 'Text': 'Petrology and Geochemistry'}
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