Grain Size data from a selection of tephra occurrences drilled at IODP Sites 350-U1436 and 350-U1437. (NERC grant NE/M005240/1)
120 samples of 57 tephra layers identified at IODP Expedition 350 sites (U1436 and U1437) were used in grain size analysis. Some layers have one grain size measurement, others have multiple measurements throughout the tephra layer.
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Citation proposal
. Grain Size data from a selection of tephra occurrences drilled at IODP Sites 350-U1436 and 350-U1437. (NERC grant NE/M005240/1). https://metadata.bgs.ac.uk/geonetwork/srv/api/records/692a7f13-9317-6e85-e054-002128a47908 |
Simple
- Date ( Creation )
- 2018
Point of contact
University of Bristol
-
Dr Sue Mahony
(School of Earth Sciences )
Wills Memorial Building, Queens Road, Clifton
Bristol
BS8 1RJ
United Kingdom
- Maintenance and update frequency
- notApplicable notApplicable
- GEMET - INSPIRE themes
-
- Geology
- BGS Thesaurus of Geosciences
-
- Volcanic ejecta , Submarine trenches , Geochemistry , Volcanic glass , Electron microprobes , Grain size analysis
- Keywords
-
- NERC_DDC
- Access constraints
- otherRestrictions Other restrictions
- 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
- English English
- Topic category
-
- Geoscientific information
- Geographic identifier
-
BONIN TRENCH [id=926400]
- Date ( Creation )
- 1979
N
S
E
W
))
- Supplemental Information
- Site 350-U1437 is located at 31°47.391′N, 139°01.579′E; 2116.1 m water depth in the Izu rear arc, ~330 km west of the axis of the Izu-Bonin Trench and ~90 km west of the arc-front volcanoes Myojinsho and Myojin Knoll at 2117 mbsl. Site 350-U1436 is located at 32°23.883′N, 140°21.928′E; (1776 m water depth), in the western half of the Izu-Bonin fore-arc basin, ~60 km east of the arc-front volcano Aogashima and ~170 km west of the axis of the Izu-Bonin Trench.
- Reference system identifier
-
OGP
/
GEOG
- Date ( Revision )
- 2005
- Distribution format
-
- MS Excel ()
- Hierarchy level
- dataset Dataset
- Other
- dataset
Conformance result
- Date ( Publication )
- 2011
- Explanation
- See the referenced specification
- Pass
- false
Conformance result
- Date ( Publication )
- 2010-12-08
- Explanation
- See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF
- Pass
- false
- Statement
- Samples were dried, then set in epoxy in a thin walled sample ring, polished and carbon coated. Two sessions of analysis took place using the JEOL JXA8530F Hyperprobe, with analyses on 13/10/2014 using a focused beam with no TDI. Analyses on 13/11/2014 used a 4 micron beam with TDI counting for 10 intervals over time period, see third tab in Excel file for beam setup. Approximately 10-15 glass shards were analysed per sample. Data were filtered to remove results that were obviously not glass.
gmd:MD_Metadata
- File identifier
- 692a7f13-9317-6e85-e054-002128a47908 XML
- Metadata language
- English English
- Hierarchy level
- dataset Dataset
- Date stamp
- 2021-01-19
- Metadata standard name
- UK GEMINI
- Metadata standard version
- 2.3
Point of contact
British Geological Survey
Environmental Science Centre,Keyworth
NOTTINGHAM
NOTTINGHAMSHIRE
NG12 5GG
United Kingdom
- Dataset URI
- http://data.bgs.ac.uk/id/dataHolding/13607293