Data Publication

Rock and mineral analyses from Ruang volcano, Indonesia (EPMA, XRF)

Watt, Sebastian | Cassidy, Mike | Dini, Benedetta | Carey, Jonathan | Octonovrilna, Litanya | Nurfiani, Dini | Draniswari, Windi Anarta | Nareswari, Ratika Benita | Abdurrachman, Mirzam | Indriyanto, Jananda Nuralam | Sujatmiko, Karina Aprilia | Arifin, Januar

NERC EDS National Geoscience Data Centre

(2026)

Descriptions

Electron microprobe analyses (glass and mineral chemistry) and XRF whole-rock compositional analyses from young volcanic rock samples from Ruang volcano, Indonesia Data provided include sample names, geographic coordinates and brief contextual and stratigraphic descriptions, alongside geochemical analyses provided with sample identifiers. All samples were collected during fieldwork in 2025 following the 2024 eruption of Ruang volcano, exposing previously undocumented stratigraphy. Sampling targeted young volcanic rocks including those of the 2024 eruption and several inferred historical eruption deposits. Electron microprobe analyses were undertaken at Bristol University on polished mounts of separated pumice grains from each analysed sample, targeting phenocrysts and groundmass glass, using a JEOL JXA8530F EPMA. Samples were carbon coated prior to analysis. The instrument was calibrated prior to each run using a range of mineral standards. EPMA data are provided with raw totals and have not been normalised. Analyses with high or low totals have been removed (97-102wt%; except for allowing totals to 96 wt% for hornblende, and retaining 92 wt% for melt inclusion glass analyses). Inferred mineral types are indicated in a separate column within the spreadsheet. XRF was conducted on cleaned and picked samples of juvenile pumice grains (selected as the dominant vesicular grain type based on visual characteristics), to provide whole-rock compositions. Samples were crushed and powdered and analysed for major and trace element compositions at the University of Edinburgh, calibrated using a range of internal and reference material volcanic standards. The data provide insights into the chemistry and nature of magmas erupted from Ruang volcano in recent time (likely within the past few centuries, and can be used to assess the development of this magma system.

Keywords

MSL enriched keywords
equipment
x-ray spectrometer
x-ray fluorescence spectrometer
igneous rock - intrusive
magma
igneous rock - extrusive
volcanic glass
pumice
minerals
chemical elements
carbon
silicate minerals
inosilicates
amphibole
hornblende
unconsolidated sediment
tephra
pumice
analogue modelling material
granular modelling material
natural granular material
pumice
electron probe micro-analyzer
Apparatus
microchemical analysis
electron probe micro analyser
Technique
section preperation
section coating
carbon coating
MSL vocabulary keywords corresponding to originally assigned keywords
x-ray fluorescence spectrometer
Originally assigned keywords
Volcano
whole rock
x-ray fluorescence
Electron probe microanalysis

Metadata


MSL enriched sub domains

geochemistry
microscopy and tomography

Source


Source publisher

NERC EDS National Geoscience Data Centre

DOI


Creators

Watt, Sebastian
Personal
University of Birmingham
Cassidy, Mike
Personal
University of Birmingham
Dini, Benedetta
Personal
University of Birmingham
Carey, Jonathan
Personal
University of Birmingham
Octonovrilna, Litanya
Personal
University of Birmingham
Nurfiani, Dini
Personal
National Research and Innovation Agency
Draniswari, Windi Anarta
Personal
National Research and Innovation Agency
Nareswari, Ratika Benita
Personal
National Research and Innovation Agency
Abdurrachman, Mirzam
Personal
Bandung Institute of Technology
Indriyanto, Jananda Nuralam
Personal
Bandung Institute of Technology
Sujatmiko, Karina Aprilia
Personal
Bandung Institute of Technology
Arifin, Januar
Personal
Meteorological, Climatological, And Geophysical Agency

Citation

Watt, S., Cassidy, M., Dini, B., Carey, J., Octonovrilna, L., Nurfiani, D., Draniswari, W. A., Nareswari, R. B., Abdurrachman, M., Indriyanto, J. N., Sujatmiko, K. A., & Arifin, J. (2026). Rock and mineral analyses from Ruang volcano, Indonesia (EPMA, XRF) [Dataset]. NERC EDS National Geoscience Data Centre. https://doi.org/10.5285/CF41AF29-96A9-4295-ACCD-45C6CCE4D5EA


Dates

Available 2026-08-15

Language

- no language entry found -


Funding References

Funder Name Natural Environment Research Council
Funder Identifier https://doi.org/10.13039/501100000270
Award Number NE/Z503976/1
Award Title Determining the potential for eruption-driven tsunami hazards at Ruang volcano, Indonesia

Locations


Geo location(s)

Ruang volcano, Indonesia