Date (Creation)

2019-09-26

Identifier

http://data.bgs.ac.uk/id/dataHolding/13607513

Maintenance and update frequency

notApplicable notApplicable

GEMET - INSPIRE themes, version 1.0

• Geology

BGS Thesaurus of Geosciences

• Volcanic ejecta
• Peralkaline
• Pyroclastic rocks
• Rift zone
• Volcanism
• NGDC Deposited Data
• Electron microscopes

dataCentre

• NGDC Deposited Data

Keywords

• NERC_DDC

Access constraints

otherRestrictions Other restrictions

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 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]"

Metadata language

EnglishEnglish

Topic category

• Geoscientific information

Geographic identifier

ET

Date (Revision)

2009

Geographic identifier

ETH

Date (Revision)

2009

Geographic identifier

ETHIOPIA [id=692000]

Date (Creation)

1979

Begin date

2016-02-11

End date

2016-09-27

Distribution format

• tiff files ()

OnLine resource

https://doi.org/10.1038/s41467-019-09947-8

OnLine resource

Data

Hierarchy level

dataset Dataset

Other

dataset

Statement

Secondary electron backscatter analysis was carried out using the Carl Zeiss SIGMA HD VP Field Emission SEM at the University of Edinburgh . X-ray microtomography was undertaken using an in-house constructed XCT scanner at the University of Edinburgh. Clasts were measured and the X-ray source-sample distance was adapted for each clast to ensure a whole-clast analysis whilst attaining an optimum resolution. Each sample was rotated around 180° and a series of exposures taken. These images were reconstructed and corrected for beam hardening using Octopus v8.7. For qualitative 3D analysis of the internal structure, these images were loaded into Avizo 9 and a threshold was applied.

File identifier

91524626-5af4-00f9-e054-002128a47908 XML

Metadata language

EnglishEnglish

Hierarchy level

dataset Dataset

Date stamp

2025-11-13

Metadata standard name

UK GEMINI

Metadata standard version

2.3

Dataset URI

http://data.bgs.ac.uk/id/dataHolding/13607513