Fe speciation data (FeHR/FeT, and FePy/FeHR) (NERC grant NE/M001156/1)

Dataset description

Data produced from NERC Grant NE/M001156/1 - Fe speciation data (FeHR/FeT, and FePy/FeHR), collected following methods outlined in Izon et al., 2017, Proceedings of the National Academy of Sciences (PNAS); % Carbonate, determined gravimetrically; d34SV-CDT for sedimentary pyrite, analysed by Iso-Analytical Laboratories, Cheshire, using standard EA-IRMS techniques; d15N of bulk rock, analysed by nano-EA-IRMS, following methods described in Polissar et al., 2009, Analytical Chemistry; d15N of kerogen extracted following the methods described in Zerkle et al., 2017, Nature, analysed by nano-EA-IRMS; d13C of organic carbon, measured on decarbonated rock powders by standard EA-IRMS techniques; %TN and TON % determined by standard EA-IRMS of bulk rock and extracted kerogen, respectively. Drill core samples were taken through the 2.7Ga old Manjeri Formation of the Belingwe Greenstone belt, Zimbabwe, which overlies more ancient gneissic basement with very well-exposed unconformity (Bickle et al. 1975). The Manjeri Formation, typically 50-150m thick, exhibits a deepening succession of facies (Grassineau et al., 2002, Hunter et al., 1998). It is directly overlain by komatiitic basalts and komatiites of the Reliance Fm., dated at 2692±9 Ma (Pb-Pb whole rock; Chauvel et al., 1993). The metamorphic grade of the Manjeri succession is variable, but generally remarkably low (Abell et al. 1981). Three drill cores were taken in the Manjeri Formation. The NERCMAR drill core has been described in detail by Grassineau et al., 2002. Drill cores A and B were collected some km to the north, in the upper Manjeri Formation.


We request this data be kept under embargo for two years, allowing time for the manuscript to undergo peer-review and publication processes. The manuscript including all data generated in this project will be made available immediately upon publication, following NERC open-access guidelines. Embargo date 12th May 2019.

Further information

For more information please contact:


Environmental Science Centre, Nicker Hill, Keyworth
NG12 5GG

Tel : +44 (0)115 936 3143
Fax :+44 (0)115 936 3276
Email :enquiries@bgs.ac.uk


Dataset details

Author(s) Not available
Principal Investigator(s) Not available
Language English
Curator British Geological Survey
Supply media/format Not available
Storage format Not available
Frequency of update not applicable
Start of capture {ts '2017-04-21 00:00:00'} Before 21st April 2017
End of capture {ts '2017-04-21 00:00:00'} Before 21st April 2017
Contact details
Department Enquiries
Organisation British Geological Survey
Address Environmental Science Centre, Nicker Hill, Keyworth
City Nottingham
County Nottinghamshire
Country United Kingdom
Postcode NG12 5GG
E-mail enquiries@bgs.ac.uk
Telephone +44 (0)115 936 3143
Fax +44 (0)115 936 3276
Topic category code (ISO) geoscientificInformation (information pertaining to earth sciences)
Keyword source BGS Keyphrases
Spatial details
Spatial Reference System Geographical, topographical or geological place names and locations, including postal address
Dataset extent
Coverage (Lat/Long) North boundary : -20
East boundary  : 31
South boundary : -22
West boundary  : 29
Metadata language English
Metadata last updated 27th July 2018
Metadata standard compliance NERC profile of ISO19115:2003
Copyright and IPR
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.