Permeability, XRD, and mercury intrusion data, and SEM backscatter images from samples of the Cropwell Bridge (Cropwell Bishop) borehole

This data repository contains all raw data files for permeability measurement, X-ray diffraction (XRD) analysis, high resolution SEM backscatter images and mercury intrusion data files for core material obtained from the Cropwell Bridge (Cropwell Bishop) borehole [SK63NE/28]. This core material is stored at the British Geological Survey, Nottinghamshire. This study presents a comprehensive experimental characterisation of gas permeability, mineralogy and microstructure through a continuous ~ 200 m cored succession of the Late Triassic Mercia Mudstone Group. More than 700 laboratory measurements of horizontal and vertical gas permeability were acquired from 18 samples over a wide range of effective pressures representative of burial conditions. Samples of core were selected intersecting the Tarporley Siltstone, Sidmouth Mudstone, Arden Sandstone and Branscombe Mudstone Formations of the Mercia Mudstone Group. Samples are taken from current day depths between 16.3 and 185.4 m. A total of 18 samples have been analysed. Details on processing methods and the file naming system can be found in the readme file - Jones_2026_supplemental_readme.docx file. SEM images were taken in the Scanning Electron Microscopy Shared Research Facility (SEM-SRF), available as high resolution .tif files at magnifications 150x, 250x and 500x. Mercury intrusion porosimetry data was undertaken in the School of Earth and Environment, University of Leeds, available as .csv files Permeability data was undertaken in the Rock Deformation Laboratory (RDL), University of Liverpool. Python processing script (.ipynb) and raw data files (.csv) are provided. XRD analysis was undertaken as part of the Diagenesis Research Group, University of Liverpool, available data as .xrdml and .hpf files for clay separate and whole rock analysis.

Date (Creation): 2026-05-01

Citation identifier: http://data.bgs.ac.uk/id/dataHolding/13608699

Point of contact

Organisation name	Individual name	Electronic mail address	Role
University of Liverpool	Worden, Professor R	not available	Originator
University of Liverpool	Professor Daniel Faulkner	not available	Originator
University of Liverpool	Samuel T.J. Jones	not available	Originator
University of Leeds	Quentin J. Fisher	not available	Originator
British Geological Survey	Enquiries	not available	Distributor
British Geological Survey	Enquiries	not available	Point of contact

Maintenance and update frequency: notApplicable

GEMET - INSPIRE themes, version 1.0

Geology

BGS Thesaurus of Geosciences

Porosity
Mudstone
Diagenesis
Radioactive wastes
Petrophysics
Deposition
Caprock
Host rock
Permeability
Carbon capture and storage

dataCentre

Keywords

NERC_DDC

Access constraints: Other restrictions

Other constraints: licenceOGL

Other constraints: Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"

Use constraints: Other restrictions

Other constraints: 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.

Other constraints: Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"

Language: English

Topic category

Geoscientific information

Geographic identifier: Cropwell Bishop [id=1455407]
British Geological Survey Gazetteer: OS gazetteer 2002 revision

Begin date: 2022-12-02

End date: 2026-02-23

Unique resource identifier: OSGB 1936 / British National Grid (EPSG::27700)

Distribution format

Name	Version
Microsoft Word document (.docx)
Microsoft Excel spreadsheet (.xlsx)
Comma-Separated Values (CSV) file (.csv)
hpf
XRDML
TIFF image (.tif)

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
British Geological Survey	Enquiries	not available	Distributor

OnLine resource

Protocol	Linkage	Name
WWW:DOWNLOAD-1.0-http--download	https://webapps.bgs.ac.uk/services/ngdc/accessions/index.html#item192088	Data

OnLine resource

Protocol	Linkage	Name
WWW:LINK-1.0-http--related	https://doi.org/10.5285/f51fd545-8135-40d8-91f8-5e863b9cd5a6	Citation Information - Digital Object Identifier (DOI)

Hierarchy level: Dataset

Other: dataset

Conformance result

Title: INSPIRE Implementing rules laying down technical arrangements for the interoperability and harmonisation of Geology

Date (Publication): 2011

Explanation: See the referenced specification

Pass: No

Conformance result

Title: 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

Date (Publication): 2010-12-08

Explanation: See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF

Pass: No

Statement: Argon permeability measurements were undertaken using the Transient Pulse Decay method. Details on the processing technique can be found in the python processing script in the repository. Details of X-Ray diffraction analysis, mercury intrusion porosimetry and SEM backscatter image methodologies can be found in the below manuscript: Jones, S.T.J, Worden, R.H, Faulkner, D.R, Fisher, Q.J, McEvoy, J.A, Utley, J.E.P. 2025. Deposition, Diagenesis and porosity of a siliciclastic caprock: the Late Triassic Mercia Mudstone Group. Journal of the Geological Society http://dx.doi.org/10.1144%2Fjgs2025-086