3e60840b-c376-7cdd-e063-3050940a31c5 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/13608519 Point Load Test (PLT) data on salt samples from the Northwich Halite Member 2025-09-08 creation http://data.bgs.ac.uk/id/dataHolding/13608519 The dataset contains point load test data of salt samples collected from the Northwich Halite Member at the Winsford Mine in Cheshire, UK. Each sample was tested in an unconfined state using a point load testing apparatus, in which compressive force was applied through two opposing conical platens until failure occurred. All tests were conducted in the Rock Mechanics and Physics Laboratory at the British Geological Survey, Keyworth, UK. The dataset is compiled into a single Microsoft Excel file, with each row representing an individual test. For each test, measurements of sample length, diameter, and peak load are provided, along with calculated point load strength indices and estimates of unconfined compressive strength. Nathaniel D Forbes Inskip Heriot-Watt University not available originator Enquiries British Geological Survey 0115 936 3143 0115 936 3276 Environmental Science Centre, Nicker Hill, Keyworth NOTTINGHAM NOTTINGHAMSHIRE NG12 5GG United Kingdom enquiries@bgs.ac.uk distributor Enquiries British Geological Survey 0115 936 3143 0115 936 3276 Environmental Science Centre, Nicker Hill, Keyworth NOTTINGHAM NOTTINGHAMSHIRE NG12 5GG United Kingdom enquiries@bgs.ac.uk 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/3e60840b-c376-7cdd-e063-3050940a31c5.png Geology GEMET - INSPIRE themes, version 1.0 2008-06-01 publication Halite Geomechanics Rock mechanics Physical properties BGS Thesaurus of Geosciences 2022 revision NGDC Deposited Data 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 2024-02-02 2024-02-02 Microsoft Excel witheld PDF witheld Microsoft Word witheld Enquiries British Geological Survey 0115 936 3143 0115 936 3276 Environmental Science Centre, Nicker Hill, Keyworth NOTTINGHAM NOTTINGHAMSHIRE NG12 5GG United Kingdom enquiries@bgs.ac.uk distributor Enquiries British Geological Survey United Kingdom not available distributor https://webapps.bgs.ac.uk/services/ngdc/accessions/index.html#item189719 WWW:DOWNLOAD-1.0-http--download Data download https://doi.org/10.5285/55d5ff39-a924-4c3f-bdcd-4e4a489302a4 WWW:LINK-1.0-http--related Citation Information - Digital Object Identifier (DOI) Valdez II, R., Forbes Inskip, N. D., Ougier-Simonin, A. (2025). Point Load Test (PLT) data on salt samples from the Northwich Halite Member. NERC EDS National Geoscience Data Centre. (Dataset). https://doi.org/10.5285/55d5ff39-a924-4c3f-bdcd-4e4a489302a4 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 samples were tested in a point load apparatus at the Rock Mechanics and Physics Laboratory at the British Geological Survey in Keyworth, UK. Each sample, prepared as a right circular disc, was positioned between two spherically truncated conical platens and loaded at a controlled rate to ensure failure occurred within 10–60 seconds, following ISRM (2007) and ASTM D5731 (2016) suggested methods for axial loading of disc-shaped samples. Peak loads were used to calculate point load strength indices and size-corrected values. UCS estimates were derived using empirical conversion factors. Full results are provided in the accompanying Excel file.