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Basic
- Full
metadata
Identification
Title:
Mechanical properties of saw-cut Westerly Granite during injection from a borehole in a laboratory sample (NERC grant NE/K009656/1)
code:
http://data.bgs.ac.uk/id/dataHolding/13607384
Abstract:
This dataset is used and fully described/interpreted in the paper: Passelegue, F. X., N. Brantut, T. M. Mitchell, Fault reactivation by fluid injection: Controls from stress state and injection rate, submitted to Geophys. Res. Lett. Text files contain raw and processed data. Mechanical data are raw. Load needs to corrected (offset) from piston friction, measured at the beginning of each run before the hit point. Axial displacement is converted into sample shortening by correcting the load from machine stiffness, which is equal to 480 kN/mm (calibrated on Mon. 14 Mar. 2016). Data include a set of elastic wave first arrival times, obtained from time of flight measurements using an array of piezoelectric transducers and the cross-correlation method detailed in Brantut (2015) (see reference above). Two separate files correspond to mechanical data from experiments conducted at 50 and 100 MPa confining pressure (""mech_Pc=???MPa.txt""). One file (""sensors.txt"") contains the initial positions of each piezoelectric transducer. Files named ""wave_?_Pc=100MPa.txt"" (?=1,2,3 or 4) contain time series of arrival times during the four injections conducted at Pc=100MPa. Each column consists in the time-of-flight between a given pair of sensors (x->y, where x is the index of source sensor, and y is the index of the receiver sensor, as per their numbering in the ""sensors.txt"" file.) In all the data files, the first column corresponds to a common time basis, in seconds.
Individual Name:
Dr Nicolas Brantut
Organisation Name:
University College London
Position Name:
Department of Earth Sciences
Delivery Point:
Kathleen Lonsdale Building, Gower Street
Individual Name:
Dr Nicolas Brantut
Organisation Name:
University College London
Position Name:
Department of Earth Sciences
Delivery Point:
Kathleen Lonsdale Building, Gower Street
role:
principalInvestigator
MD_MaintenanceInformation:
maint. / update frequency:
notApplicable
File Name:
https://resources.bgs.ac.uk/images/geonetworkThumbs/763a1668-bb40-1f49-e054-002128a47908.png
keyword:
http://www.eionet.europa.eu/gemet/concept?cp=13&langcode=en&ns=5
Title:
GEMET - INSPIRE themes, version 1.0
keyword:
NGDC Deposited Data
Title:
BGS Thesaurus of Geosciences
keyword:
https://webapps.bgs.ac.uk/services/ngdc/accessions/index.html
keyword:
NGDC Deposited Data
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.
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]"
topicCategory:
geoscientificInformation
Distribution
Digital Transfer Options:
linkage:
https://www.bgs.ac.uk/services/ngdc/accessions/index.html#item118269
Data Quality
level:
nonGeographicDataset
other:
non geographic dataset
Title:
INSPIRE Implementing rules laying down technical arrangements for the interoperability and harmonisation of Geology
explanation:
See the referenced specification
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
explanation:
See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF
statement:
Rock type - Westerly Granite, saw-cut at 30 degrees from the compression axis. A 4mm diameter borehole was drilled 4.5mm off the sample edge, connecting the bottom of sample to fault plane. Apparatus - Oil-medium triaxial apparatus (Rock Physics Ensemble, University College London). For full description, see: Brantut N. (2015), Time-dependent recovery of microcrack damage and seismic wave speeds in deformed limestone, J. Geophys. Res., 120, doi:10:1002/2015JB012324.
Metadata
File Identifier:
763a1668-bb40-1f49-e054-002128a47908
Resource type:
nonGeographicDataset
Hierarchy Level Name:
non geographic dataset
Organisation Name:
British Geological Survey
Delivery Point:
Environmental Science Centre,Keyworth
administrative Area:
NOTTINGHAMSHIRE
e-mail:
enquiries@bgs.ac.uk
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/13607384