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Geochemical and petrological data pertaining to the eruptive deposits of 1883 caldera-forming eruption of Krakatau (NERC grants NE/L002612/1, NE/N014286/1, NE/T002026/1)

Geochemical data has been collected on samples from new exposures of the 1883 deposits, revealed by the 2018 tsunamigenic flank collapse of Anak Krakatau, which provides improved stratigraphic context. Whole-rock data taken by X-ray Florescence shows no systematic stratigraphic correlation. Chemical data for transects across, and spot points on, plagioclase phenocrysts, including some trace element data, all obtained using Electron Probe Microanalysis (EPMA), with Backscatter electron (BSE) images of crystals, obtained using Scanning Electron Microscope, reveal complex zoning profiles. However, chemical data for transects across pyroxene phenocrysts, obtained using EPMA, show this phenocryst phase is largely unzoned. The dataset also includes chemical data for spots on Fe/Ti oxides, included on the rims of pyroxene, and obtained using EPMA. Matrix glass chemistry, obtained via EPMA, shows that the early eruptive ash is more evolved than the pyroclastic material that follows, and that there is a slight overall trend to a more homogenous, less evolved melt composition. The 1883 eruption of Krakatau was a large, cardera-forming eruption that caused approximately 36,000 fatalities. It is also the only eruption of its size to have accompanying written accounts.

Simple

Date (Creation)
2020-08-27
Citation identifier
http://data.bgs.ac.uk/id/dataHolding/13607662
Point of contact
Organisation name Individual name Electronic mail address Role

University of Oxford

Pyle, David

david.pyle@earth.ox.ac.uk

Principal investigator

University of Plymouth

Dr Mike Cassidy

not available

Principal investigator

University of Birmingham

Dr Sebastian Watt

not available

Principal investigator

University of Oxford

Amber Madden-Nadeau

not available

Originator

British Geological Survey

Enquiries

not available

Distributor

British Geological Survey

Enquiries

not available

Point of contact
Maintenance and update frequency
notApplicable

GEMET - INSPIRE themes, version 1.0

  • Geology

BGS Thesaurus of Geosciences

  • Petrology

  • Stratigraphy

  • Volcanoes

  • Electron microprobes

  • Whole rock analysis

  • Plagioclase

  • Volcanism

  • NGDC Deposited Data

  • Caldera

  • Pyroxene

  • X ray fluorescence spectroscopy

  • Geochemistry

  • Phenocryst

  • Subduction

dataCentre
  • NGDC Deposited Data
Keywords
  • NERC_DDC

Access constraints
Other restrictions
Other constraints
licenceOGL
Other constraints
Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"
Use constraints
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]"

Language
English
Topic category
  • Geoscientific information
Geographic identifier
ID

ISO 3166_1 alpha-2 2009 revision

Geographic identifier
IDN

ISO 3166_1 alpha-3 2009 revision

Geographic identifier
INDONESIA [id=560000]

British Geological Survey Gazetteer: Geographical hierarchy from Geosaurus 1979 creation

N
S
E
W
thumbnail




Begin date
2017-01-11
End date
2020-02-21

Reference System Information

No information provided.
Distribution format
Name Version

MS Excel

Distributor contact
Organisation name Individual name Electronic mail address Role

British Geological Survey

Enquiries

not available

Distributor
OnLine resource
Protocol Linkage Name
https://www.bgs.ac.uk/services/ngdc/accessions/index.html#item137445

Data

OnLine resource
Protocol Linkage Name
https://doi.org/10.5285/ad2a4fa0-7b66-4ec5-a5cf-d78944716ec4

Digital Object Identifier (DOI)

Hierarchy level
Dataset
Other

dataset

Conformance result

Title

INSPIRE Implementing rules laying down technical arrangements for the interoperability and harmonisation of Geology

Date (Publication)
2011
Explanation

See the referenced specification

Pass
No

Conformance result

Title

Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services

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
No
Statement

Samples were analysed for major, minor element chemistry, Department of Geology, University of Leicester (PANalytical Axios Advanced XRF spectrometer). BSE images of plagioclase (Plg) were obtained at 20KeV with 15 μ aperture: FEI Quanta 650 field emission gun (FEG) SEM, Department of Earth Sciences (ES), and a Zeiss Merlin Compact FEG-SEM, Sir William Dunn School of Pathology, University of Oxford (Ox). Phenocrysts were analysed on a FEG CAMECA SX-5 electron microprobe at ES, Ox. Major element traverses for Plg were collected at 15 kV and 20 nA, with 5 μ beam. Fe, Mg,Ti and Sr, analysed under a 40 nA beam, longer peak count times, parallel transects. Pyroxene phenocryst tranverses, and Fe/Ti oxide point analyses, obtained at 15 kV, focused beam of 20 nA. Matrix glass analysed at 15 kV with 5 μ beam of 6 nA: Jeol JXA-8200 electron Microprobe, School of Archeology, Ox.

Metadata

File identifier
ae539493-44cf-1eb3-e054-002128a47908 XML
Metadata language
English
Hierarchy level
Dataset
Date stamp
2025-05-08
Metadata standard name
UK GEMINI
Metadata standard version

2.3

Metadata author
Organisation name Individual name Electronic mail address Role

British Geological Survey

enquiries@bgs.ac.uk

Point of contact
Dataset URI

http://data.bgs.ac.uk/id/dataHolding/13607662

 
 

Overviews

overview

Spatial extent

thumbnail

Keywords

NGDC Deposited Data


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