Date (Publication)

2023-03-26

Citation identifier

British Geological Survey / BGS_CMD_REF1566

Point of contact

Organisation name	Individual name	Electronic mail address	Role
British Geological Survey (BGS)		enquiries@bgs.ac.uk	Custodian
Natural Environment Research Council		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)

• Lithology

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 NERC materials "Contains Natural Environment Research Council materials ©NERC [year]"

Spatial representation type

Grid

Distance

5  urn:ogc:def:uom:EPSG::9001

Language

English

Topic category

• Geoscientific information

Geographic identifier

NORTHEAST PACIFIC OCEAN (180W)

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

Begin date

2023-02-04

End date

2023-03-26

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
WWW:LINK-1.0-http--link	http://mapapps2.bgs.ac.uk/geoindex_offshore/home.html?cruise=JC241	BGS Offshore Geoindex

Hierarchy level

Dataset

Statement

Sample equipment types used included: Corer: Box. National Oceanography Centre was contracted to undertake the survey on behalf of Natural Environment Research Council. Sediment samples were collected from megacores (max 60 cm), ROV pushcores (max 30 cm, with one XL pushcore of 60 cm) and 5 metre gravity core. The megacores and gravity cores were wireline deployed over the side of the James Cook. Extensive ROV video footage and imaging allowed groundtruthing and precise landing location cataloguing for many megacores and gravity cores. ROV push cores were taken by ROV pilots in locations specified by scientists onboard, also allowing for precise location information. Once retrieved on deck, gravity cores were sectioned into roughly one metre sections labelled from (surface) A, B, C, D, E (base). Cylindrical sediment samples were collected using cut off syringes and porewater extracted using rhizomes (and split into aliquots for different analyses). Megacores and pushcore sediment was sampled by extrusion and slicing at set intervals. Sampling was generally 1 cm slices in the top 10 cm and 2 cm thick slices below 10 cm. Porewater was extracted at similar intervals using rhizomes and split into aliquots for different analyses. During deployment of boxcores, nodules were collected. After these nodules had been checked for fauna/biota by the biologists, they were washed to reduce salt build up, set out to dry, photographed in trays and bagged up in bulk bags by station number. They were then sealed. Nodules were also measured in three dimensions and data recorded.

Metadata

File identifier

52a5d02f-b008-0057-e063-3050940a1a94 XML

Metadata language

English

Hierarchy level

Dataset

Date stamp

2026-06-25

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