Chemical Weakening of Geologic Materials
{'Code': '06030107', 'Directorate': {'Abbreviation': 'GEO', 'LongName': 'Directorate For Geosciences'}, 'Division': {'Abbreviation': 'EAR', 'LongName': 'Division Of Earth Sciences'}}
{'SignBlockName': 'Alan M. Gaines', 'PO_EMAI': None, 'PO_PHON': None}
This project involves experimental studies of the effects of                    chemical environments on crack propagation in geological                        materials.  The project will extend previous studies on quartz                  crystals and will initiate new experiments on other minerals                    (including potassium feldspar, amphibole, muscovite mica, and                   gypsum) and on polycrystalline rock samples (granite, sandstone,                and marble).  Crack propagation experiments will use a constant-                moment double cantilever beam apparatus and will involve a                      variety of chemical surfactants chosen specifically to elucidate                the mechanisms of hydrolytic weakening.  The results of these                   experiments will increase our understanding of the processes of                 crack propagation in natural materials and of the important role                of aqueous fluids in these processes.
{'FirstName': 'Jeremy', 'LastName': 'Dunning', 'PI_MID_INIT': 'D', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Jeremy D Dunning', 'EmailAddress': 'dunning@indiana.edu', 'NSF_ID': '000190412', 'StartDate': '09/01/1987', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'Indiana University', 'CityName': 'BLOOMINGTON', 'ZipCode': '474057000', 'PhoneNumber': '3172783473', 'StreetAddress': '107 S INDIANA AVE', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Indiana', 'StateCode': 'IN', 'CONGRESSDISTRICT': '09', 'CONGRESS_DISTRICT_ORG': 'IN09', 'ORG_UEI_NUM': 'YH86RTW2YVJ4', 'ORG_LGL_BUS_NAME': 'TRUSTEES OF INDIANA UNIVERSITY', 'ORG_PRNT_UEI_NUM': 'YH86RTW2YVJ4'}
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[{'Code': '1573', 'Text': 'Petrology and Geochemistry'}, {'Code': '1574', 'Text': 'Geophysics'}]
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1987&All=true', 'xml': '8707931.xml'}