Deformation and acoustic emission of Neapolitan Yellow Tuff

These data represent a series of analyses exploring the seismic behaviours of low-cohesion volcanic sediments – in this case the Neapolitan Yellow Tuff - under varying strain rates. The data include deformation logs from triaxial compression experiments, and the accompanying 12-channel acoustic emission recordings at 10 MHz. These are paired with X-Ray Computed Tomography images of one of the cores from both before and after deformation, to examine damage behaviour. These data include: Deformation logs captured from the triaxial press Acoustic emission event data Processed acoustic emission sonograms for selected events Matlab code for processing of sonograms Matlab code for statistical analysis of the acoustic emission data Before and after X-Ray Computed tomography data for a core which underwent 2% strain at a rate of 4x10-6 s-1. These data relate to Rowley et al - Deformation controlled Long-Period seismicity in low cohesion volcanic sediments https://doi.org/10.31223/osf.io/7rkzv

Date (Creation): 2021-02-16

Citation identifier: http://data.bgs.ac.uk/id/dataHolding/13607729

Point of contact

Organisation name	Individual name	Electronic mail address	Role
University of Portsmouth	Philip Benson	not available	Originator
University of the West of England	Dr Peter Rowley	not available	Originator
Dublin Institute for Advanced Studies	Chris Bean	not available	Originator
British Geological Survey	Enquiries	not available	Distributor
British Geological Survey	Enquiries	not available	Point of contact

Maintenance and update frequency: notApplicable

GEMET - INSPIRE themes, version 1.0

Geology

BGS Thesaurus of Geosciences

Deformation (materials)
Ignimbrite
Seismicity
Volcanic tuff
NGDC Deposited Data
Acoustic emission
X ray microscopy
Cohesion

dataCentre

NGDC Deposited Data

Keywords

NERC_DDC

Access constraints: Other restrictions

Other constraints: licenceOGL

Other constraints: Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"

Use constraints: 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: Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"

Language: English

Topic category

Geoscientific information

Begin date: 2015-12

End date: 2020-07

Reference System Information

No information provided.

Distribution format

Name	Version
text document
tiff
MATLAB files
ATF files

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
British Geological Survey	Enquiries	not available	Distributor

OnLine resource

Protocol	Linkage	Name
	https://webapps.bgs.ac.uk/services/ngdc/accessions/index.html#item163527	Data

OnLine resource

Protocol	Linkage	Name
	https://doi.org/10.31223/osf.io/7rkzv	Associated Paper

OnLine resource

Protocol	Linkage	Name
	https://doi.org/10.5285/321869e2-e2d2-4e67-ba28-e961ad8bb79f	Digital Object Identifier (DOI)

Hierarchy level: Non geographic dataset

Other: non geographic dataset

Conformance result

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

Date (Publication): 2011

Explanation: See the referenced specification

Pass: No

Conformance result

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 (Publication): 2010-12-08

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

Pass: No

Statement: Rock samples gathered from Naples area (40°53'29.42"N, 14° 6'25.74"E) Samples prepared by coring and grinding. Before and after deformation the samples were scanned by X-Ray microscope to form the computed tomography datasets. The deformation experiments were run using a digital control system on a Sanchez triaxial deformation cell. The pressure and linear deformation transducer readings, pump volume and flow-rate data, and calculated derived values are logged automatically by the control software. Simultaneously with the deformation, an acoustic emission logging system records triggering P-wave events across the sample, and logs each event as a separate 10 MHz stream of recoded voltages, with a separate record from each of the 12 sensors arranged around the sample. The trigger threshold for recording an event is set above the ambient electrical noise in the system. Each event is then processed using the included MatLab scripts to generate spectrograms of the frequency composition.