Identification info

Metadata Language

English (en)

Dataset Reference Date ()

2019-08-12

Identifier

http://data.bgs.ac.uk/id/dataHolding/13607503

Maintenance and update frequency

notApplicable

GEMET - INSPIRE themes

• Geology

BGS Thesaurus of Geosciences

• Volcanic ejecta

• Volcanism

• ICP spectroscopy

• Volcanic glass

• Rift faults

• Peralkaline

Keywords

• NERC_DDC

Limitations on Public Access

otherRestrictions

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]"

Topic category

• Geoscientific information

Extent

ET

Dataset Reference Date ()

2009

Extent

ETH

Dataset Reference Date ()

2009

Extent

ETHIOPIA [id=692000]

Dataset Reference Date ()

1979

Begin date

2015-05-01

End date

2017-12-13

 

Distribution Information

Data format

 

Quality Scope

dataset

Other

dataset

Statement

Table S1 and S4: Tephra major elements were analyzed by Electron Probe (EPMA), using a JEOL JXA8530F Hyperprobe at the University of Bristol, a 2 nA beam current with a 10-µm spot size at a voltage of 15 kV was used. Table S3: A Hitachi S-3500N SEM at the University of Bristol was used to acquire back scatter electron images, taken at a working distance of ~20 mm and an accelerating voltage of 15 kV or 20 kV. Image analysis was carried out using the program Fiji (Table S3). Table S2 and S5: Tephra trace elements were analysed by Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS), using a Thermo Scientific iCAPQ ICP-MS coupled to a Photon Machines analyte 193-nm eximer laser ablation system at Trinity College Dublin, a spot size of 30 microns and the repetition rate 10 Hz was used

Metadata

File identifier

90380879-3200-20ce-e054-002128a47908 XML

Metadata Language

English (en)

Resource type

dataset

Metadata Date

2023-02-17

Metadata standard name

UK GEMINI

Metadata standard version

2.3