Identification

Title

Deformation and acoustic emission of Neapolitan Yellow Tuff

Abstract

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

Resource type

nonGeographicDataset

Resource locator

https://webapps.bgs.ac.uk/services/ngdc/accessions/index.html#item163527

name: Data

function: download

https://doi.org/10.31223/osf.io/7rkzv

name: Associated Paper

function: information

https://doi.org/10.5285/321869e2-e2d2-4e67-ba28-e961ad8bb79f

name: Digital Object Identifier (DOI)

function: information

Unique resource identifier

code

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

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

Deformation (materials)

Ignimbrite

Seismicity

Volcanic tuff

NGDC Deposited Data

Acoustic emission

X ray microscopy

Cohesion

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

2015-12

End position

2020-07

Dataset reference date

date type

creation

effective date

2021-02-16

Frequency of update

notApplicable

Quality and validity

Lineage

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.

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

text document

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

School of Earth and Environmental Sciences

organisation name

University of Portsmouth

full postal address

Burnaby Building

Portsmouth

PO1 3QL

email address

not available

responsible party role

originator

Responsible party

contact position

Senior Lecturer in Geology

organisation name

University of the West of England

full postal address

Department of Geography and Environmental Management, Frenchay Campus, Coldharbour Lane

Bristol

BS16 1QY

email address

not available

responsible party role

originator

Responsible party

contact position

Co-Principal Investigator

organisation name

Dublin Institute for Advanced Studies

full postal address

0 Burlington Rd

Dublin

Ireland

email address

not available

responsible party role

originator

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

2025-05-04

Metadata language