Date (Creation)

2021-01-06

Date (Revision)

2021-01-06

Date (Publication)

2021-01-06

Date (released)

2021-01-06

Edition

1.0

Unique resource identifier

https://doi.org/10.5285/d7c00bea-659a-426e-942f-821f6517c449

Codespace

doi

Unique resource identifier

GB/NERC/BAS/PDC/01452

Codespace

https://data.bas.ac.uk/

Unique resource identifier

NE/L002531/1

Codespace

award

Other citation details

Please cite this item as: Chadwick, M., & Allen, C. (2021). Marine Isotope Stage 5e diatom assemblages in marine sediment core TPC290 (-55.55 degN, -45.02 degE, Cruise JR48) (Version 1.0) [Data set]. UK Polar Data Centre, Natural Environment Research Council, UK Research & Innovation. https://doi.org/10.5285/d7c00bea-659a-426e-942f-821f6517c449

Credit

No credit.

Status

completed Completed

Maintenance and update frequency

asNeeded As needed

Maintenance note

completed Completed

Global Change Master Directory (GCMD) Science Keywords

• EARTH SCIENCE > Biosphere > Microbiota Taxonomy > Diatoms

Theme

• Diatoms
• Interglacial
• Sediment core

Place

• Southern Ocean

GEMET - INSPIRE themes, version 1.0

• Habitats and biotopes

Access constraints

otherRestrictions Other restrictions

Other constraints

no limitations to public access

Access constraints

otherRestrictions Other restrictions

Other constraints

no limitations

Use constraints

license License

Other constraints

Open Government Licence v3.0

Use constraints

otherRestrictions Other restrictions

Other constraints

None

Unique resource identifier

url

Codespace

url

Association Type

largerWorkCitation Larger work citation

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url

Codespace

url

Association Type

crossReference Cross reference

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Codespace

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crossReference Cross reference

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url

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Codespace

doi

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crossReference Cross reference

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doi

Codespace

doi

Association Type

crossReference Cross reference

Unique resource identifier

doi

Codespace

doi

Association Type

crossReference Cross reference

Unique resource identifier

doi

Codespace

doi

Association Type

crossReference Cross reference

Spatial representation type

textTable Text, table

Metadata language

engEnglish

Character set

utf8 UTF8

Topic category

• Biota
• Environment
• Geoscientific information

Begin date

2000-03-20

End date

2000-03-20

Supplemental Information

It is recommended that careful attention be paid to the contents of any data, and that the author be contacted with any questions regarding appropriate use. If you find any errors or omissions, please report them to polardatacentre@bas.ac.uk.

Date (Publication)

2008-11-12

Unique resource identifier

urn:ogc:def:crs:EPSG::3031

Version

6.18.3

Hierarchy level

dataset Dataset

Statement

Methodology:

Sediment core material was collected on Cruise JR48 (2000) of the RRS James Clark Ross (https://www.bodc.ac.uk/resources/inventories/cruise_inventory/reports/jr48.pdf). For the diatom assemblage data, microscope slides were produced using a method adapted from Scherer (1994). Samples of 7-20 mg were exposed to 10% Hydrochloric acid to remove any carbonate, 30% Hydrogen peroxide to break down organic material and a 4% Sodium Hexametaphosphate solution to promote disaggregation and placed in warm water bath for minimum 12 hours. The material was homogenised into a ~10cm water column and allowed to settle randomly onto coverslips over a minimum of 4 hours. The water was drained away and coverslips were mounted on microscope slides with Norland Optical Adhesive (NOA 61). Slides were investigated with a light microscope (Olympus BH-2 at x1000 magnification) and a minimum of 300 diatom valves were counted for each sample.

Age Model

Pugh et al. (2009) align core TPC290 to the EDC3 chronology by correlating the sediment core magnetic susceptibility to the dust concentration from the EDC ice core as well as correlating downcore radiolarian (Cycladophora davisiana) abundances with the regional reference curve in Brathauer et al. (2001). Translation between the EDC3 and LR04 chronologies uses the conversion tables in Parrenin et al. (2013).

Data collection:

Instrumentation;

Trigger corer,

Piston corer,

Diatom settling tanks and bench,

Olympus BH-2 light microscope.

Data quality:

All diatom abundance values have an error of ±0.16 %. Ages for samples have a chronological uncertainty of ~2 ka.

Sediment samples have a depth resolution of 2 cm and age resolution of 0.6 ka.

File identifier

d7c00bea-659a-426e-942f-821f6517c449 XML

Metadata language

engEnglish

Character set

utf8 UTF8

Hierarchy level

dataset Dataset

Hierarchy level name

dataset

Date stamp

2021-01-06

Metadata standard name

ISO 19115 Geographic Information - Metadata

Metadata standard version

ISO 19115:2003(E)