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Tephra occurrences offshore Japan, collected from shipboard records of IODP, ODP and DSDP sediment cores. (NERC grant NE/I006125/1)

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

Summary

This MS Excel dataset contains tephra depth and age data from ocean drilling expeditions around Japan. IODP, ODP and DSDP shipboard core description records were examined for mentions of volcanic ash, tephra etc., according to criteria described in Mahony et al. 2014. Data are from shipboard visual core descriptions of ocean drilling expeditions located within a few hundred km of Japan. Cores without published age-depth data are not included in this dataset. The expeditions occurred between 1973 (DSDP 31) to 2013 (IODP 346). Tephra layers are dated as being deposited between 0.003-18.5 Ma. This data will be of interest to volcanologists or anyone interested in the location of volcanic ash layers within IODP cores.

Data links

Link Format Preview Updated
Data 28/8/2026
Citation Information - Digital Object Identifier (DOI) 28/8/2026

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Additional information

Source Metadata
XML, HTML
Date added
28 August 2026
Harvest GUID
45d0d4cb-4a63-43a5-e054-002128a47908
Extent (Latitude)
46.0000° to 28.0000°
Extent (Longitude)
126.0000° to 148.0000°
Dataset reference date (creation)
2014-05
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 Bristol (pointOfContact)
ISO 19139 resource type
dataset
Metadata language
eng

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