ac473e73-bea3-58bb-e054-002128a47908 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 2026-04-03 UK GEMINI 2.3 http://data.bgs.ac.uk/id/dataHolding/13607649 Fluid pH and major and minor element data from shale-acidic fluid interaction laboratory experiments 2020-01-07 creation http://data.bgs.ac.uk/id/dataHolding/13607649 This dataset presents major (ICP-OES) and minor (ICP-MS) element data and fluid pH during interaction of simulated fracturing fluids with the Bowland-Hodder shale at a variety of conditions, i.e. fluid acidity (pH 1-5), temperature (25-70 C), and rock/fluid ratio (from 0.2:200 to 20:200), as well as two end member mineralogical compositions (from 618 m depth and 673 m depth). The data was collected under the SECURe (Subsurface Evaluation of CCS and Unconventional Risks funded under the European Union’s Horizon 2020 research and innovation programme under grant agreement number 764531. Data supplied by permission of University of Nottingham and British Geological Survey. Yukun Ji University of Nottingham Nottingham United Kingdom not available author Yukun Ji University of Nottingham Nottingham United Kingdom not available pointOfContact Veerle Vandeginste University of Nottingham Nottingham United Kingdom not available author notApplicable https://resources.bgs.ac.uk/images/geonetworkThumbs/ac473e73-bea3-58bb-e054-002128a47908.png Geology GEMET - INSPIRE themes, version 1.0 2008-06-01 publication Major element analysis Contamination Hydraulic fracturing Trace elements Geochemical processes Water BGS Thesaurus of Geosciences 2022 revision UKCCS Citable 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 2019-09-23 2020-01-07 Related to publication: Geochemical element mobilisation by interaction of Bowland shale with acidic fluids, Ji, Yukun, Hennissen, Jan A. I., Hough, Edward, Vandeginste, Veerle, 2020 Microsoft Excel witheld https://webapps.bgs.ac.uk/services/ngdc/accessions/index.html?#item136785 WWW:DOWNLOAD-1.0-http--download Data download https://doi.org/10.5285/7495cc8f-245c-4ea1-a9dc-c2b92449c4ca WWW:LINK-1.0-http--related Citation Information - Digital Object Identifier (DOI) Ji, Y., Vandeginste, V. (2021): Fluid pH and major and minor element data from shale-acidic fluid interaction laboratory experiments. British Geological Survey. (Dataset). https://doi.org/10.5285/7495cc8f-245c-4ea1-a9dc-c2b92449c4ca information 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 The solution in our experiments was prepared by Milli-Q water, and the fluid pH was adapted by adding small amounts of concentrated or diluted HCl. The experiments testing the impact of fluid acidity and temperature were conducted at a constant solid to liquid ratio of 1:100 (2 g shale powder in 200 mL solution, whereas rock/fluid ratios systematically varied experiments were carried out to evaluate the impacts of changes in rock-fluid contact on elemental mobilisation at a constant fluid pH of 1.0 and ambient temperature of 60 °C. Each powdered sample was added to a 200 mL solution, where the suspension was continuously stirred using a Teflon-coated magnetic stirrer bar. Each experiment was run for a total of 100 hours, and aliquots (2 mL) were sampled at 0, 1, 3, 7, 23, 27, 31, 54, 77, 100 h and filtered through 0.22 µm polyethersulfone membranes for further analysis.