Clay mineral composition of seafloor surface sediments from the Amundsen Sea continental shelf, West Antarctica

This data set presents contents of the clay minerals smectite, illite, chlorite and kaolinite analysed on the clay fraction (<2 micrometer) of seafloor surface sediments. The sediments were recovered with a mega-corer (MC), box corer (BC), kasten corer (KC) or jumbo gravity corer (JGC) on the Amundsen Sea continental shelf in the vicinity of Thwaites Glacier and Pine Island Glacier. Sediment cores were collected during cruises NBP1902 (Jan-Mar 2019) and NBP2002 (Jan-Mar 2020) with RV/IB Nathaniel B. Palmer as part of the Thwaites Offshore Research (THOR) project on behalf of the International Thwaites Glacier Collaboration (ITGC) programme. The clay mineral contents are given in percentages and subbottom depth in centimetres (cm).

NERC grant NE/S006664/1 and NSFPLR grant no. 1738942. This data was collected as part of the NERC-NSF funded International Thwaites Glacier Collaboration (ITGC) program.

Alternate title: Polar Data Centre (PDC) record GB/NERC/BAS/PDC/01753

Date (Publication): 2023-07-07

Citation identifier: http://www.antarctica.ac.uk/dms/metadata.php?id= / GB/NERC/BAS/PDC/01753

Point of contact

Organisation name	Individual name	Electronic mail address	Role
British Antarctic Survey		pdc@bas.ac.uk	Custodian
		pdc@bas.ac.uk	Originator

Maintenance and update frequency: Unknown

Keywords

NDGO0001

NERC OAI Harvesting

NERC_DDC

GCMD Parameter Valids

EARTH SCIENCE > Oceans > Marine Sediments

BAS Free-text keywords

Amundsen Sea
Clay minerals
International Thwaites Glacier Collaboration (ITGC)
Thwaites Offshore Research (THOR)

Use limitation: This data is covered by a UK Open Government Licence v3 ( http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/).

Access constraints: Other restrictions

Other constraints: This data is covered by a UK Open Government Licence v3 ( http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/).

Language: English

Topic category

Geoscientific information

Begin date: 2020-02-06

End date: 2020-03-12

Reference system identifier: OGP / urn:ogc:def:crs:EPSG::4326

Distribution format

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
Polar Data Centre - British Antarctic Survey		pdc@bas.ac.uk	Distributor

OnLine resource

Protocol	Linkage	Name
http	https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=e8198dd3-ea60-4a4c-9975-d9c1695820fe	GET DATA

Hierarchy level: Dataset

Domain consistency

Measure identification: INSPIRE / Conformity_001

Conformance result

Title: INSPIRE Data Specification on unknown theme Guidelines

Date

Explanation: See the referenced specification

Pass: No

Statement: By preparing, analysing and evaluating samples six times, a standard deviation of c. 1 percentage was obtained for the concentrations of smectite, chlorite and kaolinite, and of c. 1.5 percentage for illite.