South China Sea Paleobathymetry and Isotopic Data for Monsoon Evolution, 34-24.5 Ma

A dataset from the Australian Ocean Data Network investigates the tectonic and oceanographic evolution of the South China Sea between approximately 34 and 24.5 million years ago. It combines Sr-Nd isotopic analyses of sediments from ocean drilling expeditions with high-resolution paleobathymetry reconstructions and ocean circulation simulations. The data was last updated on June 5, 2026.

Use Cases

• Modeling the relationship between tectonic gateway opening and ocean circulation based on paleobathymetry reconstructions.
• Tracing sediment provenance and monsoon wind patterns based on Sr-Nd isotopic analyses of detrital fractions.
• Correlating rapid Pacific water inflow events with East Asian monsoon intensification based on the described ~1 million-year flooding event.
• Reconstructing the transition from fluvial to deep-marine environments in the South China Sea basin.

Strengths

• Focuses on a crucial time period for monsoon establishment (~34–24.5 Ma) as described.
• Integrates multiple data types: isotopic analyses, paleobathymetry, and circulation simulations.
• Data is associated with recent ocean drilling expeditions, suggesting primary sample sources.

Limitations

• Row count and dataset scale are unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• File formats are HTML and PNG, which may indicate the 'dataset' is primarily documentation and figures rather than raw data tables.

Provenance

Source

Australian Ocean Data Network

Collection Method

Combines Sr-Nd isotopic analyses of ocean drilling sediments with paleobathymetry reconstructions and circulation simulations.

Time Range

Late Cenozoic, approximately 34 to 24.5 million years ago.

Freshness

Last updated 2026-06-05 06:45:27.816745; freshness should be verified.

Geography

South China Sea basin and Luzon Strait.