Argo Abyssal Plain Bathymetric and Seismic Reflection Profiles

Bathymetric and seismic reflection profiles cover approximately 110,000 km² of the Argo Abyssal Plain in the eastern Indian Ocean. The dataset, sourced from the Australian Ocean Data Network, analyzes about 2800 km of profiles to detail the tectonic and sedimentary history from the Late Jurassic to the present.

Use Cases

• Analyze sediment thickness (isopach maps) to model depositional trends in Mesozoic and Cainozoic sequences.
• Correlate seismic sequences (A-E) with lithology from ODP Site 765 and DSDP Site 261 for stratigraphic dating.
• Map structural features like the Joey Graben and Wombat Graben to understand tectonic history and crustal shearing.
• Study basement faulting persistence into early Miocene sediments to assess the duration of tectonic activity.
• Model subsidence and uplift history, including fore-bulge effects from the Sunda Trench, using bathymetric and seismic data.

Strengths

• Covers approximately 110,000 km² of the abyssal plain with about 2800 km of profiles.
• Provides detailed sediment thickness measurements, with maximums of 0.6-0.8 km for Mesozoic and 0.2-0.4 km for Cainozoic layers.
• Identifies specific structural features with quantified dimensions, such as the 400-450 km long Joey Graben.

Limitations

• Specific row/column counts and sample data are unavailable.
• Data is presented in analysis-ready formats (HTML, PDF) rather than raw, tabular data files.
• Temporal coverage of the source data collection is not explicitly stated.

Provenance

Source

Australian Ocean Data Network

Collection Method

Analysis of bathymetric and seismic reflection profiles.

Time Range

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

Freshness

null

Geography

Argo Abyssal Plain, eastern Indian Ocean.