Geochemical analysis of deep-sea floor sediments from 1300 to 2423 meters water depth on the remote Lord Howe Rise and Gifford Guyot off eastern Australia. The dataset, provided by Geoscience Australia, includes mineralogy, organic carbon and nitrogen concentrations, isotopic compositions, and major and trace element concentrations. Surface sediments were carbon-lean calcareous oozes with moderate to high chlorin indices.
Use Cases
- Modeling deep-sea habitats based on sediment geochemical characteristics.
- Developing biodiversity surrogates using parameters like chlorin indices and acid-extractable elements.
- Analyzing regional sediment composition for geological studies of the Lord Howe Rise plateau.
- Investigating organic matter reactivity and bio-availability of trace elements in marine sediments.
Strengths
- Provides a coherent synthesis of a suite of geochemical data for a remote region.
- Includes specific measurements like organic carbon content (0.26±0.1%) and chlorin index ranges (0.62 - 0.97).
- Covers a defined water depth range from 1300 to 2423 meters.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Data may reflect geographic bias inherent to the specific study area.
Provenance
- Source
- Geoscience Australia Data
- Collection Method
- Scientific study presenting new information on regional geochemical characteristics.
- Time Range
- null
- Freshness
- Last updated 2026-04-20 01:19:07.253266; freshness should be verified.
- Geography
- Lord Howe Rise (deep-sea plateau) and Gifford Guyot (seamount) off eastern Australia.