British Geological Survey (BGS) Project 70/02 collected marine geophysical data in Cardigan Bay from April 18 to May 14, 1970. The survey employed a LaCoste and Romberg gravity meter, a Barringer magnetometer, and a prototype Geomechanique sparker array for seismic profiling. Data includes measurements from Decca positioning, echo sounding, and transit sonar systems.
Use Cases
- Analyze gravity anomalies from LaCoste and Romberg gravity meter readings to map subsurface density variations.
- Process magnetometer data from the Barringer instrument to identify magnetic signatures of geological structures.
- Interpret seismic reflection profiles generated by the prototype Geomechanique sparker array for stratigraphic analysis.
- Integrate Decca positioning and towed log data with echo sounding measurements for precise bathymetric mapping.
Strengths
- Data collected by the authoritative British Geological Survey (BGS) during a dedicated marine project.
- Survey employed multiple complementary instruments including gravity, magnetic, seismic, and positioning systems.
- Covers a defined temporal range of April 18 to May 14, 1970, for the Cardigan Bay area.
Limitations
- Specific data formats, column structures, row counts, and file sizes are unknown from the input.
- Report notes little specific information available for some systems like the side-scan sonar and sparker details.
- Data is historical from 1970, so sensor resolution and positioning accuracy may be limited compared to modern standards.
Provenance
- Source
- British Geological Survey (BGS)
- Collection Method
- Marine geophysical survey conducted aboard MV Surveyor using gravity meter, magnetometer, seismic sparker array, echo sounder, and positioning systems.
- Time Range
- 18/04/1970 to 14/05/1970
- Freshness
- null
- Geography
- Cardigan Bay