Supporting data for 'DFENS: Diffusion chronometry using Finite Elements and Nested Sampling' (NERC Grant NE/L002507/1)
This is supporting data for the manuscript entitled 'DFENS: Diffusion chronometry using Finite Elements and Nested Sampling' by E. J. F. Mutch, J. Maclennan, O. Shorttle, J. F. Rudge and D. Neave. Preprint here:
https://doi.org/10.1002/essoar.10503709.1
Data Set S1. ds01.csv Electron probe microanalysis (EPMA) profile data of olivine crystals used in this study. Standard deviations are averaged values of standard deviations from counting statistics and repeat measurements of secondary standards. Data Set S2. ds02.csv Plagioclase compositional profiles used in this study, including SIMS, EPMA and step scan data. Standard deviations for EPMA analyses are averaged values of standard deviations from counting statistics and repeat measurements of secondary standards. Standard deviations for SIMS and step scan analyses are based on analytical precision of secondary standards. Data Set S3. ds03.csv Angles between the EPMA profile and the main olivine crystallographic axes measured by electron backscatter diffraction (EBSD). 'angle100X' is the angle between the [100] crystallographic axis and the x direction of the EBSD map, 'angle100Y' is the angle between [100] crystallographic axis and the y direction of the EBSD map, and 'angle100Z' is the angle between the [100] crystallographic axis and the z direction in the EBSD map etc. 'angle100P' is the angle between the EPMA profile and the [100] crystallographic axis, 'angle010P' is the angle between the EPMA profile and the [010] crystallographic axis, and 'angle100P' is the angle between the EPMA profile and the [001] crystallographic axis. All angles are in degrees. Data Set S4. ds04.csv Median timescales and 1 sigma errors from the olivine crystals of this study. The +1 sigma (days) is the quantile value calculated at 0.841 (i.e. 0.5 + (0.6826 / 2)). The 1 sigma (days) is therefore the quantile calculated at approximately 0.158 (which is 1  0.841). The 2 sigma is basically the same but it is 0.5 + (0.95/2). The value quoted as the +1 sigma (error) is the difference between the upper 1 sigma quantile and the median. Likewise the 1 sigma (error) is the difference between the median and the lower 1 sigma quantile. Data Set S5. ds05.xlsx Median timescales and 1 sigma errors from the plagioclase crystals of this study. Results from each of the parameterisations of the Mginplagioclase diffusion data are included: Faak et al, (2013), Van Orman et al., (2014) and a combined expression. Data Set S6. ds06.xlsx Spreadsheet containing the regression parameters and covariance matrices used in this study and in Mutch et al. (2019). Additional versions of the olivine regressions where the ln fO2 is expressed in Pa have been made for completeness. We recommend using the versions where ln fO2 is expressed in its native form (bars).
Simple
 Date (Creation)
 20210126
Originator
University of Cambridge

Dr John F Rudge
(
Department of Earth Sciences
)
Downing Street
,
Cambridge
,
CB2 3EQ
,
United Kingdom
Originator
University of Cambridge

Dr John Maclennan
(
Department of Earth Sciences
)
Downing Street
,
Cambridge
,
CB2 3EQ
,
Originator
University of Manchester

David Neave
(
Department of Earth and Environmental Sciences
)
Oxford Road
,
Manchester
,
M13 9PL
,
Originator
University of Cambridge

Oliver Shorttle
(
Department of Earth Sciences
)
Downing Street
,
Cambridge
,
CB2 3EQ
,
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 GEMET  INSPIRE themes, version 1.0
 BGS Thesaurus of Geosciences

 Magma
 Diffusion
 NGDC Deposited Data
 Olivine
 Finite element analysis
 Plagioclase
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 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.
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 non geographic dataset
Conformance result
 Date (Publication)
 2011
 Explanation
 See the referenced specification
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 No
Conformance result
 Date (Publication)
 20101208
 Explanation
 See http://eurlex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF
 Pass
 No
 Statement
 Olivine compositional data was collected by electron probe microanalysis (EPMA). Plagioclase compositional data was collected by EPMA and secondary ion mass spectrometry (SIMS). Olivine orientation data was collected using electron backscatter diffraction (EBSD). More details on analytical operating conditions are available in the Methodology section of the main paper. Magmatic timescales were obtained using the DFENS method outlined in the main paper. Olivine and plagioclase regressions were calculated using the statistical package R.
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 ba70f4a5fb5a303ce054002128a47908 XML
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 EnglishEnglish
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 nonGeographicDataset Non geographic dataset
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 non geographic dataset
 Date stamp
 20241010
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 UK GEMINI
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Point of contact
British Geological Survey
Environmental Science Centre,Keyworth
,
NOTTINGHAM
,
NOTTINGHAMSHIRE
,
NG12 5GG
,
United Kingdom
+44 115 936 3100
 Dataset URI
 http://data.bgs.ac.uk/id/dataHolding/13607709