The Use of U/Th Decay Series Radioisotopes to Estimate Rates of Water-Rock Exchange in the Coso Geothermal System
{'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}
The PI's propose measuring U and Th decay series                           radionuclides in geothermal brines and their associated solid                   phases obtained from commercial geothermal wells in the Coso                    Geothermal Field.  Past work in the Salton Sea geothermal field                 demonstrate that radioactive disequilibria between brines and                   solid phases can be used to determine (1) behavior of actinides                 and their daughters in high temperature waters; (2) rates of                    brine-rock interaction, and (3) hydrogeologic parameters.  A                    crystalline plutonic/metamorphic basement below Coso provides a                 different environment (from Salton Sea; sedimentary basement) to                contrast the effects of different host rocks on fluid evolution.
[{'FirstName': 'Douglas', 'LastName': 'Hammond', 'PI_MID_INIT': 'E', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Douglas E Hammond', 'EmailAddress': 'dhammond@usc.edu', 'NSF_ID': '000162410', 'StartDate': '08/01/1988', 'EndDate': None, 'RoleCode': 'Principal Investigator'}, {'FirstName': 'Teh-Lung', 'LastName': 'Ku', 'PI_MID_INIT': None, 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Teh-Lung Ku', 'EmailAddress': 'rku@usc.edu', 'NSF_ID': '000166650', 'StartDate': '08/01/1988', 'EndDate': None, 'RoleCode': 'Co-Principal Investigator'}]
{'Name': 'University of Southern California', 'CityName': 'LOS ANGELES', 'ZipCode': '90033', 'PhoneNumber': '2137407762', 'StreetAddress': '3720 S FLOWER ST FL 3', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'California', 'StateCode': 'CA', 'CONGRESSDISTRICT': '34', 'CONGRESS_DISTRICT_ORG': 'CA34', 'ORG_UEI_NUM': 'G88KLJR3KYT5', 'ORG_LGL_BUS_NAME': 'UNIVERSITY OF SOUTHERN CALIFORNIA', 'ORG_PRNT_UEI_NUM': None}
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{'Code': '157200', 'Text': 'Tectonics'}
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