Argo Abyssal Plain Bathymetry and Seismic Profiles Covering 110,000 km²

Bathymetric and seismic reflection profiles totaling about 2800 km cover approximately 110,000 km² of the Argo Abyssal Plain in the eastern Indian Ocean. The data, analyzed by Geoscience Australia, details the tectonic and sedimentary history from the Late Jurassic to the present, including structural features like the Wombat Graben and sediment thicknesses. The description correlates seismic sequences with lithology from ODP Site 765 and DSDP Site 261.

Use Cases

• Modeling crustal subsidence and tectonic evolution based on identified structural features like the Wombat Graben.
• Analyzing sediment deposition trends controlled by basement structure using isopach maps.
• Correlating seismic sequences with known lithology from ODP and DSDP sites for stratigraphic studies.
• Investigating the impact of the Sunda Trench fore-bulge on sediment uplift in the northern abyssal plain.

Strengths

• Covers a large spatial area of approximately 110,000 km².
• Profiles total about 2800 km in length, providing substantial linear coverage.
• Identifies specific structural features and sediment thicknesses, such as the 1.2 km thick sediments in the central basin.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data files are in PDF and HTML formats, which may require extraction for quantitative analysis.

Provenance

Source

Geoscience Australia Data

Collection Method

Analysis of bathymetric and seismic reflection profiles.

Time Range

Late Jurassic to present, with specific sequences from Plio-Pleistocene to uppermost Jurassic/Lower Cretaceous.

Freshness

Last updated 2026-05-14 03:07:50.366653; freshness should be verified.

Geography

Argo Abyssal Plain, eastern Indian Ocean.