Solidification Fronts in Sill-Like Magma Chambers
{'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}
Solidification fronts propagate inward from the upper and               lower margins of sills, lavas, and lava lakes, regardless of size,              and largely control magmatic evolution.  These fronts or crusts                 are characterized by strong changes in crystallinity and                        viscosity.  They partition magmatic processes into two regions:                 (1) an inward region dominated largely by fluid processes (e.g.,                crystal settling and convection), and  (2) an outer region, within              the solidification fronts themselves, dominated largely by                      intercrystalline processes (e.g., porous flow and compaction).                  The aim of this proposal is to investigate the dynamic interplay                between these regions and to understand the physical and chemical               processes that characterize each region.  The proposed                          investigation involves both field and theoretical work.  It will                improve our understanding of how relatively thin magma bodies                   solidify and permit modeling of that process.
{'FirstName': 'Bruce', 'LastName': 'Marsh', 'PI_MID_INIT': 'D', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Bruce D Marsh', 'EmailAddress': 'bmarsh@jhu.edu', 'NSF_ID': '000323015', 'StartDate': '11/01/1988', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
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[{'Code': '1573', 'Text': 'Petrology and Geochemistry'}, {'Code': '1574', 'Text': 'Geophysics'}]
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