Crack Healing in Minerals with Aqueous Pore Fluids
{'Code': '06030204', 'Directorate': {'Abbreviation': 'GEO', 'LongName': 'Directorate For Geosciences'}, 'Division': {'Abbreviation': 'EAR', 'LongName': 'Division Of Earth Sciences'}}
{'SignBlockName': 'Michael A. Mayhew'}
Many physical properties of rocks depend strongly on pore               volume fraction and pore geometry.  Petrgraphic studies indicate                changes in pore geometry caused by healing and sealing of cracks                are ubiquitous in igneous, metamorphic, and even sedimentary                    rocks, and recent laboratory experiments have shown that crack                  healing is extensive at relatively low temperatures in minerals                 with aqueous pore fluids.  Theories for the evolution of the                    shapeof a solid acted on by capillarity forces have been                        successful in predicting several aspects of crack healing                       experiments done in cracked single crystals of olivine, quartz,                 calcite, and halite.  The PI will continue to investigate the                   influence of temperature, pressure, non.hydrostatic loading, and                crack shape on crack healing in quartz, halite, and calcite with                aqueous fluids and to do experiments on the effect of crack                     healing on permeability.
{'FirstName': 'Brian', 'LastName': 'Evans', 'EmailAddress': 'brievans@mit.edu', 'StartDate': '11/15/1987', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'Massachusetts Institute of Technology', 'CityName': 'Cambridge', 'ZipCode': '021394301', 'PhoneNumber': '6172531000', 'StreetAddress': '77 MASSACHUSETTS AVE', 'CountryName': 'United States', 'StateName': 'Massachusetts', 'StateCode': 'MA'}
[{'Code': '1573', 'Text': 'Petrology and Geochemistry'}, {'Code': '1574', 'Text': 'Geophysics'}]
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1987&All=true', 'xml': '8708598.xml'}