Zircon U-Pb Sediment provenance data for Miocene to recent sediments collected at Site U1521 during International Ocean Discovery Programme (IODP) Expedition 374 to the Ross Sea, Antarctica. (NERC Grant NE/R018219/1)

This dataset comprises zircon U-Pb data on 11 samples, each containing ~90-150 individual grains. This method was applied to sediment samples from IODP Expedition 374 Site U1521 to the Ross Sea, collected on the RV JOIDES Resolution. Shipboard biostratigraphy and magnetostratigraphy suggests the samples are mainly early Miocene in age (McKay et al., 2019). The uppermost samples do, however, include younger Plio-Pleistocene sediments. Samples were measured using an Agilent 7900 laser ablation inductively-coupled plasma mass spectrometer (LA-ICP-MS) with a 25-35 µm pit diameter in the London Geochronology Centre at University College London.
dataset
: http://data.bgs.ac.uk/id/dataHolding/13607759
English
Geoscientific information
GEMET - INSPIRE themes: BGS Thesaurus of Geosciences:
Miocene
Antarctic regions
Sedimentary history
Geochronology
Land ice
Free:
NERC_DDC
-179.6700, -75.6800, -179.6800, -75.6700
ROSS SEA [id=2001391]
creation: 2021-05-21
2019-01-01 - 2020-09-01
vector
University College London
Dr Pieter Vermeesch
Kathleen Lonsdale Building, Gower Street, London, WC1E 6BT, United Kingdom
email: not available
Role: originator
Imperial College London
Professor Tina van de Flierdt
London, SW7 2BP
email: not available
Role: principal investigator
Imperial College London
James Marschalek
Royal School of Mines, Prince Consort Road, London, SW7 2BP
email: not available
Role: originator
Birkbeck, University of London
Andy Carter
email: not available
Role: originator
British Geological Survey
Enquiries
email: not available
Role: distributor
British Geological Survey
Enquiries
email: not available
Role: point of contact

Data Quality

Zircons from the <300 µm fraction were concentrated using standard gravity settling and magnetic separation techniques. Samples were then mounted in resin, polished and analysed using an Agilent 7900 LA-ICP-MS. Plešovice zircon (Sláma et al., 2008) was used as a primary standard to correct for instrumental mass bias and depth-dependent inter-element fractionation. Approximate U and Th concentrations were calculated by comparison with NIST 612 glass (Pearce et al., 1997). Data reduction of the time-resolved mass spectrometer data was performed using GLITTER 4.5 (Griffin, 2008). Ages younger than 1100 Ma were calculated using the 206Pb/238U ratio whilst older grains used the 207Pb/206Pb ratio. Data were filtered to exclude non-zircons based on zirconium concentrations and a -5/+15% discordance threshold was applied. Final data were processed using IsoplotR (Vermeesch, 2018).
INSPIRE Implementing rules laying down technical arrangements for the interoperability and harmonisation of Geology
Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services

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.
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.

Metadata about metadata

c3289e87-c520-0c91-e054-002128a47908
British Geological Survey
Environmental Science Centre,Keyworth, NOTTINGHAM, NG12 5GG, United Kingdom
tel: +44 115 936 3100
email: enquiries@bgs.ac.uk
Role: point of contact
2022-08-16

Coupled Resource