East Antarctic continental shelf sediments contain ripple cross-lamination and massive bedding. Radiocarbon dates from a core on the Mac.Robertson Shelf indicate the most intensely cross-laminated sediments were deposited between 6,000 and 3,500 years before present. The dataset is provided by the Australian Ocean Data Network.
Use Cases
- Reconstructing past bottom water production episodes based on sediment cross-lamination patterns.
- Analyzing Holocene climate variability in East Antarctica based on sediment core stratigraphy.
- Correlating sedimentary facies with radiocarbon dates to establish a depositional timeline.
Strengths
- Includes radiocarbon dates providing temporal control for sediment layers.
- Focuses on a specific submarine valley system on the East Antarctic Shelf.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
Provenance
- Source
- Australian Ocean Data Network
- Collection Method
- Biosiliceous sediments sampled from a submarine valley system.
- Time Range
- Holocene, with specific focus on 6,000 to 3,500 years before present.
- Freshness
- Last updated 2026-06-04 08:47:41.158357; freshness should be verified.
- Geography
- Continental shelf of East Antarctica, specifically the Mac.Robertson Shelf.