40Ar/39Ar geochronology of basaltic samples from Bruce Bank and Jane Bank of the Scotia Sea

The datasets refer to the dating of three basaltic samples collected from Bruce Bank and Jane Bank in the southern Scotia Sea. The samples were dredged from depths between 850 -1900 m from steep scrap slopes at two locations (DR.225: 59.927 degrees S, 39.154 degrees W; DR.84: 62.468 degrees S, 039.785 degrees W). The files include full analytical datasets for 40Ar/39Ar analysis of whole rock and plagioclase mineral separates performed at the Open University, UK in June 2022.

This project was funded by NERC NC-ALI funding to Geology & Geophysics.

Alternate title: Polar Data Centre (PDC) record GB/NERC/BAS/PDC/01709

Date (Publication): 2023-02-10

Citation identifier: http://www.antarctica.ac.uk/dms/metadata.php?id= / GB/NERC/BAS/PDC/01709

Point of contact

Organisation name	Individual name	Electronic mail address	Role
British Antarctic Survey		pdc@bas.ac.uk	Custodian
NERC EDS UK Polar Data Centre	Riley, T.	pdc@bas.ac.uk	Originator

Maintenance and update frequency: Unknown

Keywords

NDGO0001

NERC OAI Harvesting

NERC_DDC

GCMD Parameter Valids

EARTH SCIENCE > Solid Earth > Geochemistry > Marine Geochemistry

BAS Free-text keywords

Scotia Sea
basalt
geochronology

Use limitation: This data is governed by the NERC data policy http://www.nerc.ac.uk/research/sites/data/policy/ and supplied under Open Government Licence v.3 http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/.

Cite this dataset as follows:

Riley, T. (2023). 40Ar/39Ar geochronology of basaltic samples from Bruce Bank and Jane Bank of the Scotia Sea (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/417A7F70-4FF2-428E-829D-0423772F66B4

Access constraints: Other restrictions

Other constraints: This data is governed by the NERC data policy http://www.nerc.ac.uk/research/sites/data/policy/ and supplied under Open Government Licence v.3 http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/.

Cite this dataset as follows:

Riley, T. (2023). 40Ar/39Ar geochronology of basaltic samples from Bruce Bank and Jane Bank of the Scotia Sea (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/417A7F70-4FF2-428E-829D-0423772F66B4

Language: English

Topic category

Geoscientific information

Begin date: 2022-06-01

End date: 2022-06-30

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=417a7f70-4ff2-428e-829d-0423772f66b4	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: Results were corrected for 37Ar and 39Ar decay, and neutron-induced interference reactions. The following correction factors were used: (39Ar/37Ar)Ca = 0.00065 ± 0.00000325, (36Ar/37Ar)Ca = 0.000265 ± 0.000001325, and (40Ar/39Ar)K = 0.0085 ± 0.0000425; based on analyses of Ca and K salts. Data corrections carried out using an Excel macro.

A calibration noble gas mixture was used with known concentration.

Neutron flux was monitored using biotite mineral standard GA1550.