Argo Abyssal Plain Bathymetry and Seismic Profiles, Eastern Indian Ocean

2800 km of bathymetric and seismic reflection profiles covering about 110,000 km² of the Argo Abyssal Plain, analyzed by the Australian Ocean Data Network. The data reveals the tectonic and sedimentary history from the Late Jurassic to the present, including newly identified structural features like the Joey, Wombat, and Kivi Grabens. Five sedimentary sequences have been correlated with ODP Site 765 and DSDP Site 261, representing strata from the uppermost Jurassic to the Plio-Pleistocene.

Use Cases

• Modeling tectonic evolution based on identified structural features like the Wombat Graben and Joey Rise.
• Analyzing sediment deposition trends controlled by basement structure from the Mesozoic to Miocene.
• Correlating regional stratigraphy using the five identified sequences (A-E) linked to ODP/DSDP sites.
• Investigating the impact of the Sunda Trench fore-bulge on the uplift of the eastern and northern abyssal plain.

Strengths

• Covers a significant spatial area of approximately 110,000 km².
• Includes 2800 km of analyzed bathymetric and seismic reflection profiles.
• Provides detailed geological interpretation, including sediment thicknesses of up to 1.2 km and mantle depth estimates of 12-15 km.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data freshness should be verified despite a last updated date of 2026-06-27.

Provenance

Source

Australian Ocean Data Network via data_gov_au

Collection Method

Analysis of bathymetric and seismic reflection profiles.

Time Range

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

Freshness

Last updated 2026-06-27 20:14:06.306892; freshness should be verified.

Geography

Argo Abyssal Plain, eastern Indian Ocean.