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X-discontinuity observations beneath the African continent (NERC Grant NE/L002507/1)

Publisher
British Geological Survey (BGS)
Updated
13 August 2026
Topic
Not set
Licence
Not set

Summary

X-discontinuity observations recorded from receiver function stacks of passive-source seismic data. Receiver functions are recorded between January 1990 and October 2021 at numerous seismometers on the African continent (see Pugh et al., 2023 for details). Receiver functions are downloaded, processed using SMURFPy (Cottaar et al., 2020). They are subsequently stacked in the depth and time-slowness domains in 1 degree radius overlapping bins and interpreted for the presence of the X-discontinuity. The dataset comprises 597 stacks, their location, the depth of the X-discontinuity, a classification of the stack and the amplitudes of the X-discontinuity. See Pugh et al., 2023 for further details on the method, the code used to download, process and stack receiver functions can be found at: https://doi.org/10.5281/zenodo.4337258 Pugh et al., 2023 - Multigenetic Origin of the X-discontinuity Below Continents: Insights from African Receiver Functions.

Data links

Link Format Preview Updated
Citation Information - Digital Object Identifier (DOI) 13/8/2026
Data 13/8/2026

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Additional information

Source Metadata
XML, HTML
Date added
12 August 2026
Harvest GUID
f4cddb09-51af-12fa-e053-0937940a6554
Extent (Latitude)
38.0300° to -25.5800°
Extent (Longitude)
-34.2700° to 57.0600°
Dataset reference date (creation)
2023-02-12
Frequency of update
notApplicable
Access 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.
Responsible party
University of Cambridge (originator); Université Claude Bernard Lyon 1 (originator); Imperial College London (originator); Tulane University (originator); British Geological Survey (distributor, pointOfContact)
ISO 19139 resource type
dataset
Metadata language
eng

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