Date (Publication)

2000-07-09

Citation identifier

British Geological Survey / BGS_CMD_REF287

Point of contact

Organisation name	Individual name	Electronic mail address	Role
British Geological Survey (BGS)		enquiries@bgs.ac.uk	Custodian
Rockall Consortium		offshoredata@bgs.ac.uk	Originator

Maintenance and update frequency

Not planned

Keywords

• NDGO0001

GEMET - INSPIRE themes, version 1.0

• Geology

SeaVoX Vertical Co-ordinate Coverages (L131)

• soil and sediment
• crust

SeaDataNet Parameter Discovery Vocabulary (P021)

• Gravity
• Bathymetry and Elevation
• Magnetics
• Two-dimensional seismic reflection

Access constraints

Other restrictions

Access constraints

No restrictions, a copyright acknowledgement is required and permission from any third party for the release of the data has been obtained. Inclusion of any third party data will determine the copyright acknowledgement that needs to be made.

Use constraints

Other restrictions

Other constraints

The copyright of materials derived from the British Geological Survey's work is vested in the Natural Environment Research Council [NERC]. No part of this work may be reproduced or transmitted in any form or by any means, or stored in a retrieval system of any nature, without the prior permission of the copyright holder, via the BGS Intellectual Property Rights Manager. Use by customers of information provided by the BGS, is at the customer's own risk. In view of the disparate sources of information at BGS's disposal, including such material donated to BGS, that BGS accepts in good faith as being accurate, the Natural Environment Research Council (NERC) gives no warranty, expressed or implied, as to the quality or accuracy of the information supplied, or to the information's suitability for any use. NERC/BGS accepts no liability whatever in respect of loss, damage, injury or other occurence however caused.

Use limitation

unrestricted use, copyright acknowledgement - 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]"

Spatial representation type

Grid

Distance

5  urn:ogc:def:uom:EPSG::9001

Language

English

Topic category

• Geoscientific information

Geographic identifier

Rockall Island

BGS Gazetteer 2025-05-07 revision

Geographic identifier

George Bligh Bank

BGS Gazetteer 2025-05-07 revision

Geographic identifier

Kennedy

BGS Gazetteer 2025-05-07 revision

Geographic identifier

North Rockall Basin

BGS Gazetteer 2025-05-07 revision

Geographic identifier

North Hatton

BGS Gazetteer 2025-05-07 revision

Geographic identifier

Central Rockall Basin

BGS Gazetteer 2025-05-07 revision

Geographic identifier

Central Hatton

BGS Gazetteer 2025-05-07 revision

Geographic identifier

Atlantic North-West Approaches, Rockall Trough and Faeroe/Shetland Channel

Charting Progress 2: Regional Sea Boundaries 2009-06-18 creation

Geographic identifier

NORTHEAST ATLANTIC OCEAN (40W)

The SeaVoX Salt and Fresh Water Body Gazetteer: Sub-Ocean Category 1954-01-01 creation

Begin date

2000-05-27

End date

2000-07-09

Reference system identifier

OGP / urn:ogc:def:crs:EPSG::4326

www.epsg.org 2005 revision

Distribution format

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
British Geological Survey (BGS)		enquiries@bgs.ac.uk	Distributor

OnLine resource

Protocol	Linkage	Name
HTTP	http://mapapps2.bgs.ac.uk/geoindex_offshore/home.html?cruise=2000/1_RCK	BGS Offshore Geoindex

Hierarchy level

Dataset

Statement

Geophysical equipment types used included: Airgun/Sleeve Gun, Echo Sounder, Gravimeter, Magnetometer and Sparker. The survey was undertaken by Rockall Consortium. Airgun: Source: An array of 4 x 40 cu.in. Bolt 600B airguns with waveshape kits and time break solenoids. Any number of guns could be fired simultaneously, but, in all but the shallowest parts of Rockall Bank, all four were used throughout, at a six second firing rate. Two containerised Compair Reavell compressor systems, one owned by BGS and the other hired from Exploration Electronics Ltd., were installed on the vessel. Hydrophone: Two channel Geomechanique summed to give a single channel 30m active length. Sparker: Source: Three different sparkarrays were available: EG&G, nine candle, multi-tip array with 135 tips; Applied Acoustic Engineering ‘Squid’, eight candle, multi-tip array with 120 candles, on loan from the manufacturers; BGS, four candle, multi-tip array with 160 tips. The EG&G array was used for the most part with the others used on occasion for comparison purposes or when the former required candle replacement which could not be completed within a line turn. Hydrophone: Teledyne, 10m, 7 channels with all summed to give a single output. Gravitymeter: The gravitymeter was a ZLS Corporation UltraSys system. Magnetometer: The system used was a Barringer M123 marine proton magnetometer with 1 gamma sensitivity. Echo Sounder: This was an Atlas Deso 20 with a deep water transducer operating at 331Hz. Positioning: The positioning system used was differential GPS utilising two Trimble NT300D GPS receivers with differential corrections received from the Fugro Starfix system. Navigation Processing and Data Logging: Navigation processing and data logging was achieved using a Kelvin Hughes TRAC ‘C’ system. For more information see the Report, https://nora.nerc.ac.uk/id/eprint/529920/.

Metadata

File identifier

abc9f747-536a-0f38-e044-0003ba9b0d98 XML

Metadata language

English

Hierarchy level

Dataset

Date stamp

2025-05-07

Metadata standard name

MEDIN Discovery Metadata Standard

Metadata standard version

Version 2.3.5

Metadata author

Organisation name	Individual name	Electronic mail address	Role
British Geological Survey (BGS)		enquiries@bgs.ac.uk	Point of contact