Published 1994 | Version v1
Miscellaneous Metadata-only

High resolution Th-230 stratigraphy and uranium redox-fronts in hemipelagic sediments on the Australian continental margin

Creators

  • 1. Flinders Univ. of South Australia, Bedford Park, SA (Australia)

Description

High resolution sampling of sediment cores from the West Australian continental margin has provided detailed information on processes which control the extent of uranium-series disequilibrium in hemipelagic sediments. These processes appear to be related to glacial/interglacial sedimentation dynamics and hence offer the potential for paleoceanographic reconstructions in a critical area. The down core variations in decay-corrected excess 230Th (230Thxo) can be interpreted in terms of paleoclimatic and paleoceanographic processes, if an independent time frame of reference (radiocarbon dates, oxygen isotope stratigraphy) is available. In addition, a comparison between the measured burial flux of 230Th and the predicted flux of scavenged 230Th to the sea floor at a given core location provides information on the abundance efficiency of particles in the water column. 2 figs

Part of:
Proceedings of the 3rd workshop of the South Pacific Environmental Radioactivity Association (SPERA). Extended abstracts

Additional details

Publishing Information

ISBN
0-646-22869-2
Imprint Title
Proceedings of the 3rd workshop of the South Pacific Environmental Radioactivity Association (SPERA). Extended abstracts
Imprint Pagination
103 p.
Journal Page Range
p. 40-42.
Report number
INIS-mf--14669

Conference

Title
3. SPERA workshop.
Dates
15-17 Feb 1994.
Place
Canberra (Australia).

INIS

Country of Publication
Australia
Country of Input or Organization
Australia
INIS RN
27007743
Subject category
S58: GEOSCIENCES; S11: NUCLEAR FUEL CYCLE AND FUEL MATERIALS;
Resource subtype / Literary indicator
Conference, Numerical Data
Descriptors DEI
AUSTRALIA; CONCENTRATION RATIO; CONTINENTAL MARGIN; EVALUATED DATA; GEOLOGIC HISTORY; ISOTOPE RATIO; SEDIMENT-WATER INTERFACES; SEDIMENTS; THEORETICAL DATA; THORIUM 230; URANIUM 234; URANIUM 238
Descriptors DEC
ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; AUSTRALASIA; DATA; DEVELOPED COUNTRIES; EVEN-EVEN NUCLEI; HEAVY ION DECAY RADIOISOTOPES; HEAVY NUCLEI; INFORMATION; INTERFACES; ISOTOPES; MAGNESIUM 28 DECAY RADIOISOTOPES; NEON 24 DECAY RADIOISOTOPES; NUCLEI; NUMERICAL DATA; RADIOISOTOPES; SPONTANEOUS FISSION RADIOISOTOPES; THORIUM ISOTOPES; URANIUM ISOTOPES; YEARS LIVING RADIOISOTOPES

Optional Information