Natural radionuclides in groundwaters
The U-234 and Th-230 radionuclides are highly retarded by factors of 10{sup 4} to 10{sup 5} in basalt groundwater (Hanford) and briny groundwaters from Texas and geothermal brine from the Salton Sea Geothermal Field (SSGF). In basalt groundwaters (low ionic strength), Ra is highly sorbed, while in brines (high ionic strength), Ra is soluble. This is probably because the sorption sites are saturated with Na{sup +} and Cl{sup {minus}} ions and RaCl{sub 2} is soluble in brines. Pb-210 is soluble in SSGF brine, probably as a chloride complex. The U-234/Th-230 ratios in basalt groundwaters and brines from Texas and SSGF are nearly unity, indicating that U is in the +4 state, suggesting a reducing environment for these aquifers. 19 refs., 3 figs.
- Research Organization:
- Pacific Northwest Lab., Richland, WA (USA)
- Sponsoring Organization:
- DOE/ER
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 6700305
- Report Number(s):
- PNL-SA-17438; CONF-900125-1; ON: DE90015286; TRN: 90-025690
- Resource Relation:
- Conference: 3. international conference on low-level measurements of actinides and long-lived radionuclides in biological and environmental samples, Bombay (India), 29 Jan - 2 Feb 1990
- Country of Publication:
- United States
- Language:
- English
Similar Records
Natural radionuclides in ground waters and cores
URANIUM-SERIES DISEQUILIBRIUM IN TUFF AND GRANITE:HYDROGEOLOGICAL IMPLICATIONS
Related Subjects
GROUND WATER
RADIONUCLIDE MIGRATION
RADIOISOTOPES
GEOCHEMISTRY
THORIUM ISOTOPES
RADIOECOLOGICAL CONCENTRATION
URANIUM ISOTOPES
BASALT
BISMUTH 210
BRINES
DAUGHTER PRODUCTS
ENVIRONMENTAL TRANSPORT
HANFORD RESERVATION
LEAD 210
NATURAL RADIOACTIVITY
POLONIUM 210
RADIUM 224
RADIUM 226
RADIUM 228
RADIUM CHLORIDES
RADON 222
TEXAS
THORIUM 228
THORIUM 230
THORIUM 232
THORIUM 234
URANIUM 234
URANIUM 238
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALKALINE EARTH ISOTOPES
ALKALINE EARTH METAL COMPOUNDS
ALPHA DECAY RADIOISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BISMUTH ISOTOPES
CARBON 14 DECAY RADIOISOTOPES
CHEMISTRY
CHLORIDES
CHLORINE COMPOUNDS
DAYS LIVING RADIOISOTOPES
ECOLOGICAL CONCENTRATION
EVEN-EVEN NUCLEI
FEDERAL REGION VI
HALIDES
HALOGEN COMPOUNDS
HEAVY ION DECAY RADIOISOTOPES
HEAVY NUCLEI
HYDROGEN COMPOUNDS
IGNEOUS ROCKS
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LEAD ISOTOPES
MAGNESIUM 28 DECAY RADIOISOTOPES
MASS TRANSFER
NANOSEC LIVING RADIOISOTOPES
NATIONAL ORGANIZATIONS
NEON 24 DECAY RADIOISOTOPES
NORTH AMERICA
NUCLEI
ODD-ODD NUCLEI
OXYGEN COMPOUNDS
POLONIUM ISOTOPES
RADIOACTIVITY
RADIUM COMPOUNDS
RADIUM ISOTOPES
RADON ISOTOPES
ROCKS
US DOE
US ERDA
US ORGANIZATIONS
USA
VOLCANIC ROCKS
WATER
YEARS LIVING RADIOISOTOPES
540330* - Environment
Aquatic- Radioactive Materials Monitoring & Transport- (1990-)