Rare Earth Element Distribution in Pookode Lake Sediments Over 1400 Years

A sediment core from Pookode Lake in southwest India provides concentrations of rare earth elements (REEs) and redox-sensitive anomalies spanning approximately 1400 years from 600 to 2000 cal AD. The dataset includes cluster analysis identifying seven geochemical zones reflecting temporal variations in sediment input and redox dynamics. It was created by M. C. Manoj and last updated on 2026-05-13.

Use Cases

• Reconstructing paleoenvironmental conditions based on REE concentrations and redox anomalies.
• Analyzing temporal variations in sediment provenance based on light REE enrichment and heavy REE depletion patterns.
• Investigating the transition from monsoon-driven variability to anthropogenic influence using ΣREE concentrations.
• Comparing regional geochemical records based on shared felsic source and monsoon control mentioned in the description.

Strengths

• Provides a dated framework covering approximately 1400 years (600–2000 cal AD).
• Includes specific geochemical metrics such as Ce/Ce* and Eu/Eu* anomalies with values ranging from 2.4 to 4.6.
• Analysis is based on a 233 cm-long sediment core, offering depth-resolved data.

Limitations

• Dataset size is 31.3 KB, indicating a very limited scope and likely a small number of data points.
• 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.

Provenance

Source

figshare

Collection Method

Analysis of a sediment core from Pookode Lake.

Time Range

600–2000 cal AD

Freshness

Last updated 2026-05-13 05:17:44; freshness should be verified.

Geography

Pookode Lake, Western Ghats, southwest India