Radium and barium in the Amazon River system
Journal Article
·
· J. Geophys. Res.; (United States)
Data for /sup 226/Ra and /sup 228/Ra in the Amazon River system show that the activity of each radium isotope is strongly correlated with barium concentrations. Two trends are apparent, one for rivers which drain shield areas and another for all other rivers. These data suggest that there has been extensive fractionation of U, Th, and Ba during weathering in the Amazon basin. The /sup 226/Ra data fit a flux model for the major ions indicating that /sup 226/Ra behaves conservatively along the main channel of the Amazon River.
- Research Organization:
- Department of Geology, University of South Carolina
- OSTI ID:
- 7017796
- Journal Information:
- J. Geophys. Res.; (United States), Journal Name: J. Geophys. Res.; (United States) Vol. 89:C4; ISSN JGREA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
520300* -- Environment
Aquatic-- Radioactive Materials Monitoring & Transport-- (1989)
54 ENVIRONMENTAL SCIENCES
ABUNDANCE
ALKALINE EARTH ISOTOPES
ALKALINE EARTH METALS
ALPHA DECAY RADIOISOTOPES
AMAZON RIVER
BARIUM
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CHEMISTRY
ELEMENTS
EVEN-EVEN NUCLEI
HEAVY NUCLEI
ISOTOPES
METALS
NUCLEI
RADIOISOTOPES
RADIUM 226
RADIUM 228
RADIUM ISOTOPES
RIVERS
STREAMS
SURFACE WATERS
WATER CHEMISTRY
WEATHERING
YEARS LIVING RADIOISOTOPES
Aquatic-- Radioactive Materials Monitoring & Transport-- (1989)
54 ENVIRONMENTAL SCIENCES
ABUNDANCE
ALKALINE EARTH ISOTOPES
ALKALINE EARTH METALS
ALPHA DECAY RADIOISOTOPES
AMAZON RIVER
BARIUM
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CHEMISTRY
ELEMENTS
EVEN-EVEN NUCLEI
HEAVY NUCLEI
ISOTOPES
METALS
NUCLEI
RADIOISOTOPES
RADIUM 226
RADIUM 228
RADIUM ISOTOPES
RIVERS
STREAMS
SURFACE WATERS
WATER CHEMISTRY
WEATHERING
YEARS LIVING RADIOISOTOPES