IODP Expedition 352 (Bonin Forearc) Pb isotope data (NERC grant NE/M012034/1)

We provide here Pb isotope data for the basement rocks cored during IODP Expedition 352 (Bonin Forearc). The data are reported as 206Pb/204Pb, 207Pb/204Pb and 208Pb/204Pb ratios together with their errors. The overall accuracy of the data was determined using international standard NBS SRM 981. Values for this standard achieved during the measurement period were 206Pb/204Pb = 16.9404 ±32,207Pb/204Pb = 15.4969 ±32, 208Pb/204Pb = 36.7149 ±90 (2sd; n=44). The data are separated into four parts one for each drill site that cored basement. Sites 1440B and 1441A both sampled a basalt type known as FAB (Forearc Basalts), whereas Sites 1439C and 1442A both sampled boninites (Mg-rich andesites). Both rock types are typical of the forearc setting and contain information needed to understand the process of subduction initiation. A summary of the Expedition, and hence the petrography and setting of the samples as well as the various scientific objectives for the project to which these analyses contribute) may be found in: Reagan, M.K., Pearce, J.A., and Petronotis, K., Expedition Scientists, 2015, Izu-Bonin-Mariana Fore Arc: Proceedings of the International Ocean Discovery Program, 352. International Ocean Discovery Program, http://dx.doi.org/10.14379/iodp.proc.352.2015.
 
Citation proposal
. IODP Expedition 352 (Bonin Forearc) Pb isotope data (NERC grant NE/M012034/1). https://metadata.bgs.ac.uk/geonetwork/srv/api/records/6802a597-6dc8-06e3-e054-002128a47908

Simple

Date ( Creation )
2018
Identifier
http://data.bgs.ac.uk/id/dataHolding/13607289

  Point of contact

Maintenance and update frequency
notApplicable notApplicable
GEMET - INSPIRE themes
  • Geology
BGS Thesaurus of Geosciences
  • Andesite , Basement , Lead isotopes , Isotope ratio , Submarine trenches , Lead ratio , Basalt
Keywords
  • NERC_DDC
Access constraints
otherRestrictions Other restrictions
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
Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"
Metadata language
English English
Topic category
  • Geoscientific information
Geographic identifier
BONIN TRENCH [id=926400]

 

Date ( Creation )
1979

N
S
E
W


Reference system identifier
OGP / GEOG

 

Date ( Revision )
2005

Distribution format
  • ()

OnLine resource
http://www.bgs.ac.uk/services/ngdc/accessions/index.html#item107689  
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dataset Dataset
Other
dataset

Conformance result

Date ( Publication )
2011
Explanation
See the referenced specification
Pass
false

Conformance result

Date ( Publication )
2010-12-08
Explanation
See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF
Pass
false
Statement
Rocks were prepared by initially crushing inside a plastic envelope using a non-torque press. Crushed material was then separated to 0.5-1.0 mm using a Teflon sieve set. This fraction was repeatedly cleaned with in ultra-pure water in an ultra-sonic bath. Cleaned rock-chips were then picked during a microscopic examination. Samples were leached for 30-40 min in 4M HCl at 200°C prior to Pb separation using HBr-HCl anion exchange columns. Lead isotope ratios were measured by a Thermo Neptune MC-ICP-MS at the University of Southampton UK, using a double spike run of each sample to correct for instrumental mass fractionation. A 207Pb-204Pb SBL74 spike was added such that 204Pbsample/204Pbspike was 0.09±0.03. Procedural blanks range between 30-95 pg Pb. Propagated uncertainty for combined natural sample and spiked sample analyses were always less than reproducibility 2sd of NBS SRM 981.

gmd:MD_Metadata

File identifier
6802a597-6dc8-06e3-e054-002128a47908   XML
Metadata language
English English
Hierarchy level
dataset Dataset
Date stamp
2020-10-27
Metadata standard name
UK GEMINI
Metadata standard version
2.3

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Dataset URI
http://data.bgs.ac.uk/id/dataHolding/13607289
 
 

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