Ore Precipitation in Epithermal Systems
{'Code': '06030103', 'Directorate': {'Abbreviation': 'GEO', 'LongName': 'Directorate For Geosciences'}, 'Division': {'Abbreviation': 'EAR', 'LongName': 'Division Of Earth Sciences'}}
{'SignBlockName': 'Jane M. Ernst', 'PO_EMAI': None, 'PO_PHON': None}
A combined field and laboratory study is proposed for                      epithermal ore deposits of the Champion Mine, Bohemia district, in              the western Cascades, Oregon.  Veins in this deposit record                     multiple episodes of fluid flow and precipitation.  Field                       relations have been mapped by a PhD student involved in the                     project.  They will be studied in detail (fluid inclusion                       measurements, microprobe analysis of ore, gangue, and alteration                minerals, and Ar-Ar geochronology of igneous and mineralization                 episodes).  Observational data will be interpreted in terms of                  theoretical models of ore formation involving cooling, boiling,                 mixing, and redox histories of ore forming brines.  Numerical                   simulations will be used to model (a) mechanisms of sulfide and                 gold precipitation, and (b) the role of heat transfer to and from               wall rocks.  These studies will be of application to understanding              many epithermal ore deposits.
{'FirstName': 'Mark', 'LastName': 'Reed', 'PI_MID_INIT': 'H', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Mark H Reed', 'EmailAddress': 'mhreed@uoregon.edu', 'NSF_ID': '000292903', 'StartDate': '08/15/1988', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'University of Oregon Eugene', 'CityName': 'EUGENE', 'ZipCode': '974031905', 'PhoneNumber': '5413465131', 'StreetAddress': '1776 E 13TH AVE', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Oregon', 'StateCode': 'OR', 'CONGRESSDISTRICT': '04', 'CONGRESS_DISTRICT_ORG': 'OR04', 'ORG_UEI_NUM': 'Z3FGN9MF92U2', 'ORG_LGL_BUS_NAME': 'UNIVERSITY OF OREGON', 'ORG_PRNT_UEI_NUM': 'Z3FGN9MF92U2'}
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{'Code': '1572', 'Text': 'Tectonics'}
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1987&All=true', 'xml': '8720412.xml'}