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

2800 km of bathymetric and seismic reflection profiles cover approximately 110,000 km² of the eastern Indian Ocean's Argo Abyssal Plain. The data, from Geoscience Australia, reveals the tectonic and sedimentary history from the Late Jurassic to the present, including newly identified grabens and sediment thicknesses up to 1.2 km. Analysis correlates sedimentary sequences with Ocean Drilling Program sites and identifies periods of non-deposition between 37-16 million years ago.

Use Cases

• Modeling tectonic evolution based on identified structural features like the Wombat, Joey, and Kivi Grabens.
• Analyzing sediment deposition trends and thicknesses based on isopach maps of Mesozoic and Cainozoic sequences.
• Correlating regional seismic stratigraphy with lithology from ODP Site 765 and DSDP Site 261.
• Investigating the impact of the Sunda Trench fore-bulge on uplift patterns in the northern and eastern plain.

Strengths

• Covers a large spatial area of approximately 110,000 km².
• Includes analysis of up to 1.2 km thick sediment sequences and mantle depths of 12-15 km.
• Identifies specific structural features and provides temporal context from Late Jurassic to Miocene.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and sample data are unavailable, which may limit suitability assessment.

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 2026-03 19:10:30.824733; freshness should be verified.

Geography

Argo Abyssal Plain, eastern Indian Ocean.