Philippines Marine Seismic Survey 1992: Seismic and Geochemical Data

The Philippines Marine Seismic Survey Project Cruise Report describes a 1992 joint survey by the Australian Bureau of Mineral Resources and the Philippine Office of Energy Affairs. It collected 2750 km of 192-channel seismic data, plus geochemical sniffer, gravity, magnetic, and bathymetric data across four offshore basins. The data was intended for processing and integration with existing industry data to assess petroleum potential.

Use Cases

• Mapping subsurface geological structures based on 2750 km of seismic reflection data.
• Identifying hydrocarbon seepage anomalies based on geochemical sniffer data for methane, ethane, and propane.
• Analyzing basin geometry and depocentres based on ship-board seismic monitor observations of deep stratified sections.
• Correlating geochemical anomalies with known faults or diapir structures mentioned in the report.

Strengths

• Data collection covered 2750 km across four distinct geographic areas: NE Palawan Shelf (580 km), Cuyo Platform (730 km), Tayabas Bay (490 km), and Ragay Gulf (950 km).
• The survey recorded multiple data types concurrently, including 192-channel seismic, geochemical sniffer, gravity, magnetic, and bathymetric data.
• Report notes that calm weather during the March-May 1992 survey period was conducive to collecting low-noise data.

Limitations

• Seismic data acquisition was abandoned at night in some areas due to fishing activities, potentially creating gaps.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

Australian Bureau of Mineral Resources (BMR) and Philippine Office of Energy Affairs (OEA), via Geoscience Australia Data.

Collection Method

Joint marine survey conducted using the research vessel Rig Seismic.

Time Range

March to May 1992

Freshness

Last updated 2026-03-25 18:22:57.688075; freshness should be verified.

Geography

Four Philippine offshore sedimentary basins: NE Palawan Shelf, Cuyo Platform, Tayabas Bay, and Ragay Gulf.