415b4928-be11-9030-e063-3050940a43af English nonGeographicDataset non geographic dataset British Geological Survey +44 115 936 3100 Environmental Science Centre,Keyworth NOTTINGHAM NOTTINGHAMSHIRE NG12 5GG United Kingdom enquiries@bgs.ac.uk pointOfContact 2026-03-19 UK GEMINI 2.3 http://data.bgs.ac.uk/id/dataHolding/13608546 Solubility and speciation of Sulfur in silicate melt 2025-10-13 creation http://data.bgs.ac.uk/id/dataHolding/13608546 This dataset contains experimentally derived measurements of sulfur solubility and speciation in silicate melts, obtained over a temperature range of 1200–1500 °C and a pressure range of 1 bar to 2.5 GPa. The experiments were conducted as part of the NERC-funded project NE/W000660/1 “The chemical behaviour of sulphur in magmas at high temperature and pressure” (2022–2025). For each experiment, the dataset includes the experimental run ID, silicate melt composition, and the experimental conditions under which the run was performed: pressure, temperature, oxygen fugacity (fO?), sulfur fugacity (fS?), and run duration. The dataset also provides raw electron microprobe analyses (EMPA) for each experiment, expressed as elemental weight percentage averages. These analyses represent individual point analyses collected from polished epoxy resin mounts coated with carbon. Measurements were acquired using wavelength-dispersive spectrometry (WDS) on a standard-calibrated electron microprobe. The data are intended to support investigations into the behavior of sulfur in magmatic systems, including solubility mechanisms, redox speciation, and compositional controls on sulfur partitioning between melts and other phases. The data was acquired and analysed by the experimental petrology team, at the University of Oxford, Department of Earth Sciences Richard Thomas University of Oxford not available originator Enquiries British Geological Survey United Kingdom not available distributor Enquiries British Geological Survey United Kingdom not available pointOfContact notApplicable https://resources.bgs.ac.uk/images/geonetworkThumbs/415b4928-be11-9030-e063-3050940a43af.png Geology GEMET - INSPIRE themes, version 1.0 2008-06-01 publication Magma Silicate minerals Electron microprobes Solubility Experimental petrology Gas furnaces BGS Thesaurus of Geosciences 2022 revision NGDC Deposited Data dataCentre NERC_DDC otherRestrictions licenceOGL Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]" otherRestrictions 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. Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]" English geoscientificInformation 2022-09-01 2025-09-09 Microsoft Excel (XLSX) witheld Enquiries British Geological Survey United Kingdom not available distributor https://webapps.bgs.ac.uk/services/ngdc/accessions/index.html#item190287 WWW:DOWNLOAD-1.0-http--download Data download nonGeographicDataset non geographic dataset INSPIRE Implementing rules laying down technical arrangements for the interoperability and harmonisation of Geology 2011 publication See the referenced specification false 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 2010-12-08 publication See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF false Experiments were conducted to determine sulfur solubility and speciation in silicate melts at 1300–1500 °C and 1 bar to 2.5 GPa. High-pressure runs used a piston–cylinder apparatus, and 1 bar experiments were performed in vertical gas-mixing furnaces at controlled fO? and fS?. Samples were rapidly quenched to glass, mounted in epoxy, polished, and carbon-coated. Major and minor elements were measured by electron microprobe (WDS), calibrated against mineral and glass standards. Sulfur contents and speciation were quantified by secondary ion mass spectrometry (SIMS) using sulfur-bearing glass standards for calibration.