Geochemical data from deep-sea floor sediments collected at 1300 to 2423 meters water depth on the Lord Howe Rise and Gifford Guyot off eastern Australia. The dataset includes mineralogy, organic carbon and nitrogen concentrations and isotopes, and major and trace element concentrations, intended for habitat and biodiversity surrogate development. Surface sediments were characterized as carbon-lean calcareous oozes with specific chlorin index ranges.
Use Cases
- Modeling deep-sea biodiversity surrogates based on sediment geochemical characteristics mentioned in the description.
- Analyzing habitat suitability based on organic carbon content and chlorin indices.
- Studying the bioavailability of bioactive trace elements from acid-extractable element data.
- Correlating sediment mineralogy with regional geological processes on a deep-sea plateau.
Strengths
- Provides specific geochemical measurements including organic carbon content (0.26±0.1%) and chlorin index ranges (0.62 - 0.97).
- Covers a defined geographic region (Lord Howe Rise, Gifford Guyot) and depth range (1300 - 2423 m).
- Data is sourced from Geoscience Australia, an authoritative government geoscience organization.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment for large-scale modeling.
- The primary format is HTML, which may require extraction to a structured format for analysis.
Provenance
- Source
- Geoscience Australia Data
- Collection Method
- Marine survey and laboratory analysis of sediment samples.
- Time Range
- null
- Freshness
- Last updated 2026-03-25 18:20:09.701472; freshness should be verified.
- Geography
- Lord Howe Rise and Gifford Guyot off eastern Australia.