Van Diemen Rise: Quaternary Evolution and Seafloor Features for Petroleum Exploration

Geoscience Australia's 1992 analysis describes the seafloor sediments and geomorphic features of the Van Diemen Rise in the Timor Sea. The report interprets modern geological processes and Quaternary evolution to meet environmental baseline requirements for potential petroleum exploration. It focuses on an area near Cootamundra and Evans Shoals, where calcareous sands dominate the sea bottom.

Use Cases

• Modeling seafloor sediment distribution based on described calcareous sand-grade deposits.
• Analyzing the impact of Quaternary sea-level changes on geomorphic features like channels and banks.
• Assessing environmental baselines for petroleum exploration activities in the specified release area.

Strengths

• Report produced by Geoscience Australia, a national geological authority.
• Analysis is focused on a specific, defined geographic area: the Van Diemen Rise (East Malita Graben).
• Describes distinct geological processes, including subaerial exposure during Quaternary low sea levels.

Limitations

• Data is from Release 1 of 1992; its current applicability may be limited.
• Column-level documentation and sample data are unavailable, hindering direct machine-readability.
• The primary file formats are HTML and PDF, which are not structured for direct analysis.

Provenance

Source

Geoscience Australia Data

Collection Method

Collection, interpretation, and analysis of environmental baseline data for offshore areas.

Time Range

Focuses on Quaternary evolution and modern processes; report released in 1992.

Freshness

Last updated 2026-03-25 16:52:28.749085; freshness should be verified.

Geography

Van Diemen Rise, East Malita Graben area, Timor Sea, vicinity of Cootamundra and Evans Shoals, Australia.