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Metadata Files

Data Publication

Sedimentological data (foraminifera, wet bulk density and magnetic susceptibility) for core LC7 sediment record from Blaso, a large, epishelf lake in NW Greenland collected July-August 2017

Smith, James A. | Callard, Louise | Sánchez Montes, Maria Luisa | McClymont, Erin L. | Lloyd, Jeremy M. | Ehrmann, Werner | Roberts, David | Bentley, Michael J. | Jamieson, Stewart S. R. | Lane, Timothy P. | Darvill, Christopher M.

NERC EDS UK Polar Data Centre

(2022)

Descriptions

The dataset comprises multi-proxy analyses of a sediment core (LC7) extracted from Blaso, a large epishelf lake on the margin of 79 ° N Ice Shelf, NW Greenland in July-August 2017. The data are used to constrain ice shelf dynamics over the last 8500 calibrated years before present (cal. years B.P., where present is A.D. 1950). A 2 m-long sediment core was recovered with a UWITEC KOL 'Kolbenlot' percussion piston corer to a total sediment depth of 3.74 m. Core LC7: 87 m water depth; 79.589 ° N, 22.494 ° E. Sedimentological data for the LC7 sediment record consists of physical properties (magnetic susceptibility, wet bulk density) and foraminifera data.
A 2 m-long sediment core was recovered with a UWITEC KOL 'Kolbenlot' percussion piston corer to a total sediment depth of 3.74 m (LC7) in Blaso (LC7: 79°35.340N, 22°29.640E, 87m). Physical properties (magnetic susceptibility, wet bulk density) were measured on whole core using a GEOTEK multi-sensor core logger (MSCL) at the Department of Geography, Durham University, to characterise lithological properties and infer the depositional environment(s). Core sections were then split, described and sub-sampled. 1 cm thick sediment slices were taken every 10-20 cm. A total of 6 (LC7) samples were processed for foraminiferal analysis to reconstruct the environmental conditions in Blaso. Sample volume varied between 0.5 and 5 ml (cm^3) depending on average foraminiferal concentration (estimated based on initial scanning of samples). The variation in sample size was designed to allow 300 to 500 specimens to be counted from all samples. Once extracted samples were soaked in deionized water for several hours to help disaggregate the sediment. Samples were then washed through a 500 µm and 63 µm mesh sieve to concentrate the foraminifera. The material collected on the 63 µm mesh sieve were retained for foraminiferal analysis. Foraminifera were identified and counted from the wet residue under a binocular microscope.
UWITEC KOL 'Kolbenlot' percussion piston corer GEOTEK multi-sensor core logger Binocular microscope

Keywords


Originally assigned keywords
"EARTH SCIENCE","PALEOCLIMATE","OCEAN/LAKE RECORDS","SEDIMENTS"

MSL enriched keywords
Measured property
magnetic susceptibility
minerals
oxide mineral
ice
liquid phase
water in pores
de-ionized water

MSL enriched sub domains i

paleomagnetism

Source

https://data.bas.ac.uk/full-record.php?id=GB/NERC/BAS/PDC/01664

Source publisher

NERC EDS UK Polar Data Centre


DOI

10.5285/dc8c92a8-c6e0-4edb-97da-5462f4310a9d


Creators

Smith, James A.

British Antarctic Survey

ORCID:

https://orcid.org/0000-0002-1333-2544

Callard, Louise

Newcastle University

ORCID:

https://orcid.org/0000-0003-2512-9030

Sánchez Montes, Maria Luisa

University of Colorado Boulder

ORCID:

https://orcid.org/0000-0003-1725-0789

McClymont, Erin L.

Durham University

ORCID:

https://orcid.org/0000-0003-1562-8768

Lloyd, Jeremy M.

Durham University

ORCID:

https://orcid.org/0000-0003-0542-6732

Ehrmann, Werner

University of Leipzig

ORCID:

https://orcid.org/0000-0001-8555-072X

Roberts, David

Durham University

ORCID:

Bentley, Michael J.

Durham University

ORCID:

https://orcid.org/0000-0002-2048-0019

Jamieson, Stewart S. R.

Durham University

ORCID:

https://orcid.org/0000-0002-9036-2317

Lane, Timothy P.

Liverpool John Moores University

ORCID:

https://orcid.org/0000-0002-7116-9976

Darvill, Christopher M.

University of Manchester

ORCID:

https://orcid.org/0000-0001-8175-2658


Contributors

Callard, Louise

Researcher

Newcastle University

ORCID:

https://orcid.org/0000-0003-2512-9030

Smith, James A.

Researcher

British Antarctic Survey

ORCID:

https://orcid.org/0000-0002-1333-2544

Sánchez Montes, Maria Luisa

Researcher

University of Colorado Boulder

ORCID:

https://orcid.org/0000-0003-1725-0789

McClymont, Erin L.

Researcher

Durham University

ORCID:

https://orcid.org/0000-0003-1562-8768

Lloyd, Jeremy M.

Researcher

Durham University

ORCID:

https://orcid.org/0000-0003-0542-6732

Ehrmann, Werner

Researcher

University of Leipzig

ORCID:

https://orcid.org/0000-0001-8555-072X

Roberts, David

Researcher

Durham University

ORCID:

Bentley, Michael J.

Researcher

Durham University

ORCID:

https://orcid.org/0000-0002-2048-0019

Jamieson, Stewart S. R.

Researcher

Durham University

ORCID:

https://orcid.org/0000-0002-9036-2317

Lane, Timothy P.

Researcher

Liverpool John Moores University

ORCID:

https://orcid.org/0000-0002-7116-9976

Darvill, Christopher M.

Researcher

University of Manchester

ORCID:

https://orcid.org/0000-0001-8175-2658

Smith, James A.

ContactPerson

British Antarctic Survey

ORCID:

https://orcid.org/0000-0002-1333-2544

UK Polar Data Centre

DataManager

Natural Environment Research Council

UK Polar Data Centre

Distributor

Natural Environment Research Council

UK Polar Data Centre

HostingInstitution

Natural Environment Research Council


References

10.5285/e44bbc45-9924-401b-a7b8-7939fbb61db2

10.5285/3d37a409-c1e2-4c25-bdbc-fe495ccff653

10.5285/71c64bf8-671e-4f22-b4e9-b67b76dc35c8

10.5285/5a286921-9031-4abc-b227-79bce58f0640

10.5285/e44bbc45-9924-401b-a7b8-7939fbb61db2

10.5285/dc8c92a8-c6e0-4edb-97da-5462f4310a9d

10.5285/3d37a409-c1e2-4c25-bdbc-fe495ccff653

10.5285/71c64bf8-671e-4f22-b4e9-b67b76dc35c8

10.5194/tc-17-1247-2023

10.5194/tc-17-1247-2023


Citation

Smith, J. A., Callard, L., Sánchez Montes, M. L., McClymont, E. L., Lloyd, J. M., Ehrmann, W., Roberts, D., Bentley, M. J., Jamieson, S. S. R., Lane, T. P., & Darvill, C. M. (2022). Sedimentological data (foraminifera, wet bulk density and magnetic susceptibility) for core LC7 sediment record from Blaso, a large, epishelf lake in NW Greenland collected July-August 2017 (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/DC8C92A8-C6E0-4EDB-97DA-5462F4310A9D


Dates

Collected:

2017-07-20/2017-08-16

Accepted:

2022-09-13

Created:

2022-09-13

Submitted:

2022-09-13

Issued:

2022-09-16


Language

en


Funding References

Funder name: Natural Environment Research Council

Funder identifier: https://ror.org/02b5d8509

Funder identifier type: ROR

Award number: NE/N011228/1

Award uri: https://gtr.ukri.org/projects?ref=NE/N011228/1

Award title: Greenland in a warmer climate: What controls the advance & retreat of the NE Greenland Ice Stream


Rights

Open Government Licence V3.0


Datacite version

1.0


Geo location(s)

Blaso, NW Greenland Greenland


Spatial coordinates