Date (Creation)

2021-05-19

Identifier

http://data.bgs.ac.uk/id/dataHolding/13607797

Maintenance and update frequency

notApplicable notApplicable

GEMET - INSPIRE themes, version 1.0

• Geology

BGS Thesaurus of Geosciences

• NGDC Deposited Data
• Miocene
• Geochronology
• Provenance
• Sedimentary history

dataCentre

• NGDC Deposited Data

Keywords

• NERC_DDC

Access constraints

otherRestrictions Other restrictions

Other constraints

restricted

Other constraints

The dataset has been formally approved by BGS for access by external clients under a BGS Digital Data Licence, issued via BGS's IPR Section. The dataset must not be provided to, or be accessible by, an external client until the IPR Section confirms that signed licence documentation is in place. Refer to the IPR Section (DigitalLE@bgs.ac.) if further advice is required.. Constraint applies until 2022-12-31

Use constraints

otherRestrictions 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.

Other constraints

Either: (i) the dataset is made freely available, e.g. via the Internet, for a restricted category of use (e.g. educational use only); or (ii) the dataset has not been formally approved by BGS for access and use by external clients under licence, but its use may be permitted under alternative formal arrangements; or (iii) the dataset contains 3rd party data or information obtained by BGS under terms and conditions that must be consulted in order to determine the permitted usage of the dataset. Refer to the BGS staff member responsible for the creation of the dataset if further advice is required. He / she should be familiar with the composition of the dataset, particularly with regard to 3rd party IPR contained in it, and any resultant use restrictions. This staff member should revert to the IPR Section (ipr@bgs.ac.uk ) for advice, should the position not be clear.

Spatial representation type

vector Vector

Metadata language

EnglishEnglish

Topic category

• Geoscientific information

Geographic identifier

ROSS SEA [id=2001391]

Date (Revision)

2010

Begin date

2020-01

End date

2020-04 After

Unique resource identifier

WGS 84 (EPSG::4326)

Distribution format

• csv fle ()

OnLine resource

Data

OnLine resource

Digital Object Identifier (DOI)

Hierarchy level

dataset Dataset

Other

dataset

Statement

Hornblende grains were picked from the magnetic separate of samples prepared for U-Pb dating of zircons (150-300 µm size fraction). The samples were co-irradiated with Fish Canyon sanidine (28.201 ± 0.046 Ma) (Kupier et al., 2008, Science) for 8 hours in the CLICIT (Cadmium Lined In-Core Irradiation Tube) facility at Oregon State University reactor. Samples were loaded into planchettes, evacuated in a chamber with a ZnSe window, then heated with a CO2 laser to release the gas. Samples were exposed to hot Zr-Al getters to remove reactive gases, and the inert gases were let into a VG5400 noble gas mass spectrometer and measured with peak hopping on an analogue multiplier in static vacuum mode. Backgrounds were corrected based on frequent measurements of blanks (~ every 4 unknowns) and mass discrimination was corrected based on measurements of air (~ every 12 unknowns). Corrections for nuclear interferences are based on reported measurements from the Berkeley Geochronology Lab (Renne, 1995, EPSL). Analyses and data reduction were performed using MassSpec, a program written by Al Deino at the BGC. Errors are reported at 1 sigma.

File identifier

cb69365d-33db-2efb-e054-002128a47908 XML

Metadata language

EnglishEnglish

Hierarchy level

dataset Dataset

Date stamp

2025-05-07

Metadata standard name

UK GEMINI

Metadata standard version

2.3

Dataset URI

http://data.bgs.ac.uk/id/dataHolding/13607797