Protactinium and isotopes of thorium in metalliferous sediments from the Bauer depression

Journal Article · Sat Dec 31 23:00:00 EST 1988 · Sov. Radiochem. (Engl. Transl.); (United States)

OSTI ID:5872051

Arslanov, K A; Kuznetsov, V Yu; Lokshin, N V; Pospelov, Yu N

Results are presented of a study of the vertical distribution of /sup 238/U, /sup 234/U, /sup 232/Th, /sup 230/Th, and /sup 231/Pa isotopes in a column of metalliferous sediments from the Bauer depression (southeastern part of the Pacific Ocean). On the basis of the obtained data a hypothesis is formulated concerning the authigenic production of /sup 230/Th and /sup 231/Pa in these deposits, i.e, the similarity of the physicochemical behavior of /sup 230/Th and /sup 231/Pa found in pelagic sediments is found in these specific sediments also. We present arguments in favor of the identical behavior of these radionuclides in the marine environment. With the help of the ionium method of dating marine sediments, the average rate of sedimentation of the investigated column of metalliferous sediments from the Bauer depression was calculated.

• OSTI ID: 5872051
• Journal Information: Sov. Radiochem. (Engl. Transl.); (United States), Journal Name: Sov. Radiochem. (Engl. Transl.); (United States) Vol. 30:3; ISSN SVRDA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400101 -- Activation
Nuclear Reaction
Radiometric & Radiochemical Procedures
58 GEOSCIENCES
580400* -- Geochemistry-- (-1989)
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
AGE ESTIMATION
ALPHA DECAY RADIOISOTOPES
ALPHA SPECTROSCOPY
CHEMICAL ANALYSIS
CHROMATOGRAPHY
ECOLOGICAL CONCENTRATION
ENVIRONMENTAL TRANSPORT
EVEN-EVEN NUCLEI
EXTRACTION CHROMATOGRAPHY
GEOCHEMICAL SURVEYS
GEOLOGIC STRUCTURES
HEAVY ION DECAY RADIOISOTOPES
HEAVY NUCLEI
ISOTOPE DATING
ISOTOPE RATIO
ISOTOPES
MARINE SURVEYS
MASS TRANSFER
MINERALS
NEON 24 DECAY RADIOISOTOPES
NUCLEI
ODD-EVEN NUCLEI
ORES
ORIGIN
PACIFIC OCEAN
PROSPECTING
PROTACTINIUM 231
PROTACTINIUM ISOTOPES
QUANTITATIVE CHEMICAL ANALYSIS
RADIOCHEMICAL ANALYSIS
RADIOECOLOGICAL CONCENTRATION
RADIOISOTOPES
RADIONUCLIDE MIGRATION
SAMPLE PREPARATION
SEA BED
SEAS
SEDIMENTARY BASINS
SEDIMENTS
SEPARATION PROCESSES
SPECTROSCOPY
SURFACE WATERS
SURVEYS
THORIUM 230
THORIUM 232
THORIUM ISOTOPES
URANIUM 234
URANIUM 238
URANIUM ISOTOPES
YEARS LIVING RADIOISOTOPES