Experimental friction data for different grain size quartz gouges under different effective normal stresses (NERC Grant NE/P002943/1)
The data are from a suite of friction experiments performed on 3 different grain size quartz gouges (5, 15 and 30 microns). The quartz gouge layers were sheared under a range of effective normal stresses (40-120 MPa), at a displacement rate of 1 micron/s, and the evolution of shear stress was monitored with increasing displacement (up to a maximum displacement of 8.5 mm). The gouges typically exhibit a transition from stable sliding, where the gouge layers shear in a continuous smooth fashion, to unstable sliding with displacement, where the gouges exhibit stick-slip behaviour. The transition from stable to unstable sliding occurs more efficiently in fine-grained quartz gouges and is promoted by high effective normal stresses.
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Citation proposal
. Experimental friction data for different grain size quartz gouges under different effective normal stresses (NERC Grant NE/P002943/1). https://metadata.bgs.ac.uk/geonetwork/srv/api/records/ae6a04e8-43fa-0183-e054-002128a47908 |
Simple
- Date ( Creation )
- 2020-08-28
Originator
University of Liverpool
-
John Bedford
(Post-doctoral Research Associate )
School of Environmental Sciences, 4 Brownlow Street
Liverpool
L69 3GP
Principal investigator
University of Liverpool
-
John Bedford
(Post-doctoral Research Associate )
School of Environmental Sciences, 4 Brownlow Street
Liverpool
L69 3GP
Distributor
Point of contact
- Maintenance and update frequency
- notApplicable notApplicable
- GEMET - INSPIRE themes
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- Geology
- BGS Thesaurus of Geosciences
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- Shear strength , Friction (engineering) , Quartz , Normal stress , Fault gouge
- Keywords
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- NERC_DDC
- Access constraints
- otherRestrictions Other restrictions
- Use constraints
- otherRestrictions 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
- Either: (i) the dataset is made freely available, e.g. via the Internet, for a restricted category of use (e.g. educational use only); or (ii) the dataset has not been formally approved by BGS for access and use by external clients under licence, but its use may be permitted under alternative formal arrangements; or (iii) the dataset contains 3rd party data or information obtained by BGS under terms and conditions that must be consulted in order to determine the permitted usage of the dataset. Refer to the BGS staff member responsible for the creation of the dataset if further advice is required. He / she should be familiar with the composition of the dataset, particularly with regard to 3rd party IPR contained in it, and any resultant use restrictions. This staff member should revert to the IPR Section (ipr@bgs.ac.uk ) for advice, should the position not be clear.
- Metadata language
- English English
- Topic category
-
- Geoscientific information
Reference System Information
No information provided.
- Distribution format
-
- MS Excel ()
Distributor
- Hierarchy level
- nonGeographicDataset Non geographic dataset
- Other
- non geographic dataset
Conformance result
- Date ( Publication )
- 2011
- Explanation
- See the referenced specification
- Pass
- false
Conformance result
- 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
- false
- Statement
- Data were collected using a direct shear setup, where layers of quartz gouge were sheared in a triaxial deformation apparatus. In the direct shear geometry the normal stress is applied by the confining pressure (Pc), and pore fluid pressure (Pf) is introduced to the sample through the three porous disks on each of the direct shear forcing blocks. Deionized water was used as the pore fluid, which was held at a constant pressure of 20 MPa for all experiments in this study. The samples are sheared by the axial piston of the triaxial apparatus at a constant displacement rate of 1 µm/s. The evolution of shear stress is monitored by an internal force gauge, with a measurement resolution better than 0.05 kN, while the effective normal stress (=Pc-Pf) is held constant by servo-controlled pumps, with a resolution better than 0.1 MPa, on both the confining and pore pressure systems.
gmd:MD_Metadata
- File identifier
- ae6a04e8-43fa-0183-e054-002128a47908 XML
- Metadata language
- English English
- Hierarchy level
- nonGeographicDataset Non geographic dataset
- Hierarchy level name
- non geographic dataset
- Date stamp
- 2021-04-09
- Metadata standard version
- 2.3
Point of contact
British Geological Survey
Environmental Science Centre,Keyworth
NOTTINGHAM
NOTTINGHAMSHIRE
NG12 5GG
United Kingdom
- Dataset URI
- http://data.bgs.ac.uk/id/dataHolding/13607663