Identification

Data Identification:

citation:

Citation:

Title:

Experimental direct shear friction dataset for synthetic clay gouges (NERC grant NE/L002469/1)

Date:

CI_Date:

Date Type:

creation

date:

2020-01-10

Identifier:

RS_Identifier:

code:

http://data.bgs.ac.uk/id/dataHolding/13607574

Abstract:

Friction coefficient and frictional stability (rate & state parameter) data for triaxially compressed direct shear experiments on kaolinite-rich china clay and Mg-montmorillonite fault gouges (<2micron grain size). A total of 19 raw experimental datasets are presented as detailed in the index files: 13 on kaolinite-rich china clay, and 6 on cation-exchanged Mg-Montmorillonite. The raw data files, logged at either 1 or 2Hz, comprise confining pressures, upstream and downstream fluid pressures, force experienced by the direct shear assembly during triaxial compression, and absolute volumes of the confining pressure and fluid pressure reservoirs. Data is provided as measured by gauges in the pressure vessel in Volts, and also as calculated in MPa, kN and mm3. Also presented are the outputs of MATLAB models run to simulate the rate and state parameters k, a, b, dc and f0 for each experiment, with error data presented as 2sigma and standard error values. Parameters were determined using a non-linear least-squares fitting routine with the machine stiffness treated as a fitting parameter (c.f. Noda and Shimamoto, 2009). Data were fit by a single set of state variables (a, b, dc) with a linear detrend. Also presented are the outputs of Specific Thermogravimetric Analyses on kaolinite-rich china clay and Mg-montmorillonite.

Point of Contact:

Responsible Party:

Individual Name:

Vaughan, Professor D J

Organisation Name:

University of Manchester

Position Name:

Earth Atmosphere and Env Sciences

Contact Info:

CI_Contact:

Address:

e-mail:

not available

role:

principalInvestigator

Responsible Party:

Individual Name:

Steven Beynon

Organisation Name:

University of Liverpool

Position Name:

Department of Environmental Sciences

Contact Info:

CI_Contact:

Address:

Delivery Point:

Jane Herdman Building, 4 Brownlow Street

city:

Liverpool

Postal Code:

L69 3GP

e-mail:

not available

role:

pointOfContact

Resource Maintenance:

MD_MaintenanceInformation:

maint. / update frequency:

notApplicable

Graphic overview:

Browse Graphic:

File Name:

https://resources.bgs.ac.uk/images/geonetworkThumbs/9cb7598b-b3c1-06fe-e054-002128a47908.png

Descriptive Keywords:

Keywords:

keyword:

http://www.eionet.europa.eu/gemet/concept?cp=13&langcode=en&ns=5

keyword:

Geology

Thesaurus Name:

Citation:

Title:

GEMET - INSPIRE themes, version 1.0

Date:

CI_Date:

date:

2008-06-01

Date Type:

publication

Keywords:

keyword:

Friction (geomechanics)

keyword:

Kaolinite

keyword:

Rock deformation

keyword:

Montmorillonite

keyword:

NGDC Deposited Data

keyword:

Shear properties

keyword:

Compression tests

keyword:

Clays

keyword:

Saturation

Thesaurus Name:

Citation:

Title:

BGS Thesaurus of Geosciences

Date:

CI_Date:

date:

2022

Date Type:

revision

Keywords:

keyword:

https://webapps.bgs.ac.uk/services/ngdc/accessions/index.html

keyword:

NGDC Deposited Data

Type:

dataCentre

Keywords:

keyword:

NERC_DDC

Resource Constraints:

MD_LegalConstraints:

Access Constraints:

otherRestrictions

Other Constraints:

http://inspire.ec.europa.eu/metadata-codelist/LimitationsOnPublicAccess/noLimitations

Other Constraints:

no limitations

Other Constraints:

The dataset is made freely available for access, e.g. via the Internet. Either no third party data / information is contained in the dataset or BGS has secured written permission from the owner(s) of any third party data / information contained in the dataset to make the dataset freely accessible.

MD_LegalConstraints:

Use Constraints:

otherRestrictions

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:

eng

topicCategory:

geoscientificInformation

Extent:

Temporal Element:

TemporalExtent:

extent:

begin / end:

begin:

2017-12-01

end:

2018-11-01

Distribution

Distribution:

Distribution Format:

Format:

Format Name:

MS Excel

Transfer Options:

Digital Transfer Options:

onLine:

CI_OnlineResource:

linkage:

https://www.bgs.ac.uk/services/ngdc/accessions/index.html#item132045

name:

Data

function:

download

Data Quality

Data Quality:

Scope:

DQ_Scope:

level:

nonGeographicDataset

Level Description:

MD_ScopeDescription:

other:

non geographic dataset

Report:

Domain Consistency:

Result:

Conformance Result:

specification:

Citation:

Title:

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

Date:

CI_Date:

Date Type:

publication

date:

2011

explanation:

See the referenced specification

pass:

Domain Consistency:

Result:

Conformance Result:

specification:

Citation:

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:

CI_Date:

Date Type:

publication

date:

2010-12-08

explanation:

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

pass:

Lineage:

LI_Lineage:

statement:

Direct shear experiments were performed on 2 clay gouges (<2microns grain size) in a triaxial pressure vessel. Samples were sheared between two stainless steel sliders, with fluid/vacuum controlled via porous sintered discs. Tests were run under the following experimental conditions for each sample, at a confining pressure (Pc) of 60 MPa unless otherwise indicated: 1. Saturated with deionised water (80 MPa Pc, 20 MPa fluid pressure (Pf)); 2. At room humidity; 3. At room humidity with a vacuum applied to the sample assembly; 4. Vacuum oven dry (to 130ºC for 20 hours, then cooled to room temperature under vacuum); 5. Vacuum oven dry (to 130ºC for 20 hours, then cooled to room temperature under vacuum) with a vacuum applied to the sample assembly; 6. At room humidity, taken to 130ºC in the sample assembly under vacuum for ~20 hours and allowed to cool, and then run under vacuum.

Metadata

File Identifier:

9cb7598b-b3c1-06fe-e054-002128a47908

language:

eng

Resource type:

nonGeographicDataset

Hierarchy Level Name:

non geographic dataset

Metadata Contact:

Responsible Party:

Organisation Name:

British Geological Survey

Contact Info:

CI_Contact:

phone:

CI_Telephone:

voice:

+44 115 936 3100

Address:

Delivery Point:

Environmental Science Centre,Keyworth

city:

NOTTINGHAM

administrative Area:

NOTTINGHAMSHIRE

Postal Code:

NG12 5GG

country:

United Kingdom

e-mail:

enquiries@bgs.ac.uk

role:

pointOfContact

Date Stamp:

2024-04-24

Metadata Standard Name:

http://vocab.nerc.ac.uk/collection/M25/current/GEMINI/

Metadata Standard Name:

UK GEMINI

Metadata Standard Version:

2.3

Dataset URI:

http://data.bgs.ac.uk/id/dataHolding/13607574