https://ogcapi.bgs.ac.uk/collections/offshore-survey-overview/items/162
type: Place
id: 162.0
prev: 161.0
next: 163.0
ship: MV Sperus
terms of use url: http://nationalarchives.gov.uk/doc/open-government-licence/version/3/
client: British Geological Survey
start date: 1978-05-24T00:00:00
contractor: British Geological Survey
start date est: Estimated
cruise area: CP2 Regional Sea Boundaries: Western Channel & Celtic Sea, Offshore 1:250k: Austell Spur, Cockburn Bank, Great Sole Bank, Guernsey, Haig Fras, Labadie Bank, Lands End, Little Sole Bank, Lizard, Parsons Bank, Portland, Scilly, SeaVoX Sub-Ocean: CELTIC SEA, ENGLISH CHANNEL, NORTHEAST ATLANTIC OCEAN (40W)
end date: 1978-07-12T00:00:00
cruise: 1978/4
abstract: Report: Armstrong, EJ. 1978. Cruise Report for Project 78/04. SW Approaches Regional Survey. (IGS Report No 92). The four legs comprising this project were designed to extendthe regional survey of the SW Approaches to the south and west of the Scilly Isles out to the Continental Shelf edge. The survey was to be carried out using shallow seismic, gravity and megnetic techniques on a skewed 7km by 12.5km grid. Due to lack of time, this program was slightly modified.
end date est: Estimated
additional info: Navigation: Magnavox satellite navigation system integrated with MX610 doppler sonar. Decca Mk21 Main Chain. Equipment: Bolt 40cu.in. air gun (200B). Atlas Deso 10 echo sounder with hull mounted transducer and digital readout unit (Edig 10). La Coste & Romberg S75 and LaCoste & Romberg 9400 data acquisition system. Askania GSS-3 gravity meter. Two Barringer magnetometer. Edo Western pinger with hull mounted transducer. IGS multi-element sparker array. EG&G 9 element sparker array. Sodera water gun 800 cu.in. 2 x 30m Geomechanique hydrophones. For more detailed information see the Cruise Report.
confidentiality: unclassified (open file)
restitle: Geophysical Survey 1978/4: SW Approaches (24/05/1978 to 12/07/1978)
nav equip type: Decca Main Chain, Transit satellite
accessuse restric: unrestricted use, copyright acknowledgement
geophys equip type: Airgun/Sleeve Gun, Echo Sounder, Gravimeter, Magnetometer, Pinger, Refraction or Wide-angle Reflection, Sidescan Sonar, Sparker, Water Gun
terms of use: Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced British Geological Survey materials "Contains British Geological Survey materials ©UKRI [year]"
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