Bass Strait Land-Bridge Palaeogeography and Human Migration Impact

A 2025 study in Quaternary Science Reviews analyzes the flooding of the Bass Strait land-bridge connecting Tasmania and mainland Australia. The research utilizes high-resolution bathymetry to model landscape change, finding shoreline transgression rates exceeding 30 meters per year. It provides a benchmark for understanding how rapid sea-level rise impacted First Peoples' movement and connectivity across southeastern Australia.

Use Cases

• Model shoreline transgression rates exceeding 30 m/yr to simulate landscape drowning during the Last Ice Age.
• Analyze high-resolution bathymetry data to reconstruct the palaeogeography of the exposed Bass Strait land-bridge.
• Correlate climate cooling events with the timing of first human crossings across the land-bridge.
• Assess the impact of rapid sea-level change on human migration patterns and connectivity across clan estates.

Strengths

• Published in the peer-reviewed journal Quaternary Science Reviews (Volume 369, 2025).
• Analysis is grounded in high-resolution bathymetry data for accurate landscape modeling.
• Provides quantitative findings on transgression rates (exceeding 30 m/yr) and distance drowned (15 km in a lifetime).

Limitations

• Dataset details such as row count, column structure, and sample data are unavailable.
• Primary data formats are HTML and a journal article, not a structured, machine-readable table for direct analysis.
• Temporal coverage is focused on the Last Ice Age period, limiting applicability to contemporary studies.

Provenance

Source

Geoscience Australia Data, published in Quaternary Science Reviews.

Collection Method

Utilizes high-resolution bathymetry data for palaeogeographic analysis.

Time Range

Last Ice Age period.

Freshness

Metadata last updated March 2026, referencing a 2025 publication.

Geography

Bass Strait, southeastern Australia, connecting Tasmania and mainland Australia.