Argo Abyssal Plain Tectonic History with Bathymetry and Seismic Profiles

2800 km of bathymetric and seismic reflection profiles covering 110,000 km² of the Argo Abyssal Plain reveal its tectonic evolution. The data, from the Australian Ocean Data Network, identifies newly discovered grabens and maps sediment sequences from the Late Jurassic to the Pleistocene. Analysis shows basement faulting persisted into the early Miocene and sediment thicknesses reach up to 1.2 km.

Use Cases

• Modeling tectonic subsidence and uplift based on identified structural features like the Wombat Graben and Joey Rise.
• Analyzing sediment deposition trends controlled by basement structure, as described in the isopach maps.
• Correlating seismic sequences with lithology from referenced ODP and DSDP sites for stratigraphic studies.

Strengths

• Covers a substantial 110,000 km² area with 2800 km of analyzed profiles.
• Provides specific measurements, such as sediment thicknesses up to 1.2 km and graben depths of hundreds of meters.
• Correlates sequences with established drill sites (ODP Site 765, DSDP Site 261) for validation.

Limitations

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

Provenance

Source

Australian Ocean Data Network

Collection Method

Analysis of bathymetric and seismic reflection profiles.

Time Range

Late Jurassic to Pleistocene

Freshness

Last updated 2026-04-10 17:15:51.965347; freshness should be verified.

Geography

Argo Abyssal Plain, eastern Indian Ocean