Identification

Title

Experimental friction dataset for heterogeneous and homogeneous mixed quartz-clay fault gouge layers (NERC Grant NE/P002943/1)

Abstract

The data are from a suite of friction experiments performed on simulated fault gouges comprised of clay-quartz mixtures, sheared in a direct-shear arrangement. Some experiments were performed on gouge layers comprised of adjacent patches of kaolinite-clay and quartz (i.e. heterogeneous gouge layers), whereas others were performed on homogeneous mixtures of the two materials (i.e. homogeneous gouge layers). More information on the different types of experiment is provided in the accompanying metadata for this dataset. The relative proportions of clay and quartz were varied in different experiments. All experiments were performed at an effective normal stress of 40 MPa. The sliding velocity was stepped between 0.3 and 3 microns/s every 1 mm of displacement to calculated the rate-and-state friction parameter (a-b). The evolution of shear stress was monitored with increasing displacement (up to a maximum displacement of 8.5 mm).

Resource type

nonGeographicDataset

Resource locator

https://webapps.bgs.ac.uk/services/ngdc/accessions/index.html#item164865

name: Data

function: download

Unique resource identifier

code

http://data.bgs.ac.uk/id/dataHolding/13607747

codeSpace

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

geoscientificInformation

Keywords

Keyword set

keyword value

originating controlled vocabulary

title

reference date

date type

publication

effective date

2008-06-01

Keyword set

keyword value

Fault gouge

NGDC Deposited Data

Friction (geomechanics)

Heterogeneity

originating controlled vocabulary

title

reference date

date type

revision

effective date

2022

Keyword set

keyword value

Keyword set

keyword value

NERC_DDC

Geographic location

West bounding longitude

East bounding longitude

North bounding latitude

South bounding latitude

Temporal reference

Temporal extent

Begin position

2018-02-12

End position

2020-08-12

Dataset reference date

date type

creation

effective date

2021-04-22

Frequency of update

notApplicable

Quality and validity

Lineage

Data were collected by shearing gouge layers in a direct-shear arrangement within a high-pressure triaxial deformation apparatus. Normal stress is applied by the confining pressure and pore fluid pressure is introduced to the gouge layer through sintered steel porous disks on each direct-shear forcing block. The forcing blocks are displaced, and thus the gouge layer is sheared, by the axial piston of the triaxial apparatus. An internal force gauge within the axial piston measures the axial force, which is used to calculate the shear stress acting on the gouge layer.

Conformity

Conformity report

specification

title

reference date

date type

publication

effective date

2011

degree

false

explanation

See the referenced specification

Conformity report

specification

title

reference date

date type

publication

effective date

2010-12-08

degree

false

explanation

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

Data format

name of format

csv

version of format

Constraints related to access and use

Constraint set

Limitations on public access

Constraint set

Limitations on public access

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.

Responsible organisations

Responsible party

contact position

Post-doctoral Research Associate

organisation name

University of Liverpool

full postal address

School of Environmental Sciences, 4 Brownlow Street

Liverpool

L69 3GP

email address

not available

responsible party role

originator

Responsible party

contact position

Professor in Geology and Geophysics

organisation name

University of Liverpool

full postal address

School of Environmental Sciences, 4 Brownlow Street

Liverpool

L69 3GP

email address

not available

responsible party role

principalInvestigator

Responsible party

organisation name

British Geological Survey

email address

not available

responsible party role

distributor

Responsible party

organisation name

British Geological Survey

email address

not available

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact

organisation name

British Geological Survey

full postal address

Environmental Science Centre,Keyworth

NOTTINGHAM

NG12 5GG

United Kingdom

telephone number

+44 115 936 3100

email address

enquiries@bgs.ac.uk

responsible party role

pointOfContact

Metadata date

2024-04-04

Metadata language