Date ( Creation )

2020-08-28

Identifier

http://data.bgs.ac.uk/id/dataHolding/13607663

Maintenance and update frequency

notApplicable notApplicable

GEMET - INSPIRE themes

• Geology

BGS Thesaurus of Geosciences

• Shear strength , Friction (engineering) , Quartz , Normal stress , Fault gouge

Keywords

• 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

Distribution format

• MS Excel ()

OnLine resource

https://www.bgs.ac.uk/services/ngdc/accessions/index.html#item137431  

Hierarchy level

nonGeographicDataset Non geographic dataset

Other

non geographic dataset

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

Dataset URI

http://data.bgs.ac.uk/id/dataHolding/13607663