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Metadata Files

Data Publication

3D microXCT scans of 1mm pumiceous clasts from Rungwe Pumice eruption deposit (Tanzania)

Cappelli, Lorenzo | Buono, Gianmarco | Pappalardo, Lucia | Fontijn, Karen | Ernst, Gerald G.J. | van Gerve, Thomas | Namur, Olivier | Sielenou, Vanessa N. | Mbede, Evelyne | Edista, Abdallah | Kwelwa, Shimba

GFZ Data Services

(2025)

Descriptions

The dataset comprises 3D micro XCT scans collected with a ZEISS Xradia Versa 410 at the Istituto Nazionale di Geofisica e Vulcanologia-Osservatorio Vesuviano (Italy). Samples are ash particles within the 0/-0.5 φ (1-1.4 mm) grain size range collected from different stratigraphic horizons (C, F, I, L, O) of the type section (KF176) of the 4ka Rungwe Pumice Plinian eruption (Tanzania). A total of 4001 bidimensional X-ray absorption projections were collected during a 360° rotation of the sample at 80 kV and 7 W. For each sample a scan was collected using a 10x magnification lens, additionally, for specific samples, a further scan with a 20x lens was also collected at 150 kV and 10 W. The pixel size results in 2 µm/px (8 µm^3/voxel) for samples scanned with 10x lens and 1.1 µm/px (1.3 µm^3/voxel ) for samples scanned with 20x lens. When necessary, a low-energy (LE1) filter was used to minimise beam hardening. The scans were then reconstructed into tomographic volumes using the integrated XRM Reconstructor software.

Keywords


Originally assigned keywords
Rungwe Pumice eruption
Pyroclastic textures
Plinian eruption
Vesicle textures
EPOS
multi-scale laboratories
geochemistry and microscopy
geochemistry data
compound material > rock > igneous rock > fragmental igneous rock > pyroclastic rock > ash tuff lapillistone and lapilli tuff
compound material > rock > igneous rock > glass rich igneous rock > glassy igneous rock
EARTH SCIENCE > SOLID EARTH > GEOMORPHIC LANDFORMS/PROCESSES > TECTONIC LANDFORMS > VOLCANO
EARTH SCIENCE > SOLID EARTH > TECTONICS > VOLCANIC ACTIVITY > ERUPTION DYNAMICS > ASH/DUST COMPOSITION
EARTH SCIENCE > SOLID EARTH > TECTONICS > VOLCANIC ACTIVITY > ERUPTION DYNAMICS > MAGMA COMPOSITION/TEXTURE
EARTH SCIENCE > SOLID EARTH > TECTONICS > VOLCANIC ACTIVITY > ERUPTION DYNAMICS > MAGMA SPEED/FLOW
EARTH SCIENCE > SOLID EARTH > TECTONICS > VOLCANIC ACTIVITY > ERUPTION DYNAMICS > PYROCLASTICS COMPOSITION/TEXTURE
EARTH SCIENCE > SOLID EARTH > TECTONICS > VOLCANIC ACTIVITY > ERUPTION DYNAMICS > VOLCANIC EXPLOSIVITY

MSL enriched keywords
igneous rock - extrusive
volcanic glass
pumice
unconsolidated sediment
tephra
pumice
analogue modelling material
granular modelling material
natural granular material
pumice
Analyzed feature
grain size and configuration
grain size

MSL enriched sub domains i

microscopy and tomography

Source

https://dataservices.gfz-potsdam.de/panmetaworks/showshort.php?id=51b704a4-18f8-11f0-914a-f12b0080820d

Source publisher

GFZ Data Services


DOI

10.5880/fidgeo.2025.023


Creators

Cappelli, Lorenzo

Department of Geosciences, Environment and Society; Université libre de Bruxelles; Bruxelles, 1050, Belgium

ORCID:

https://orcid.org/0000-0003-0749-5563

Buono, Gianmarco

Istituto Nazionale di Geofisica e Vulcanologia, Italy

ORCID:

https://orcid.org/0000-0002-5474-1985

Pappalardo, Lucia

Istituto Nazionale di Geofisica e Vulcanologia, Italy

ORCID:

https://orcid.org/0000-0002-9187-252X

Fontijn, Karen

Department of Geosciences, Environment and Society; Université libre de Bruxelles; Bruxelles, Belgium

ORCID:

https://orcid.org/0000-0001-7218-4513

Ernst, Gerald G.J.

van Gerve, Thomas

Department of Earth and Environmental Sciences, KU Leuven, Leuven, Belgium

ORCID:

https://orcid.org/0000-0002-8776-1552

Namur, Olivier

Department of Earth and Environmental Sciences, KU Leuven, Leuven, Belgium

ORCID:

https://orcid.org/0000-0001-9129-3264

Sielenou, Vanessa N.

Department of Geosciences, Environment and Society; Université libre de Bruxelles; Bruxelles, Belgium

Mbede, Evelyne

School of Mines and Geosciences; University of Dar es Salaam; Dar es Salaam, Tanzania

ORCID:

https://orcid.org/0000-0002-2134-0253

Edista, Abdallah

School of Mines and Geosciences; University of Dar es Salaam; Dar es Salaam, Tanzania

Kwelwa, Shimba

AngloGold Ashanti, Tanzania


Contributors

Cappelli, Lorenzo

ContactPerson

Department of Geosciences, Environment and Society; Université libre de Bruxelles; Bruxelles, 1050, Belgium

ORCID:

https://orcid.org/0000-0003-0749-5563

Cappelli, Lorenzo

DataCollector

Department of Geosciences, Environment and Society; Université libre de Bruxelles; Bruxelles, 1050, Belgium

ORCID:

https://orcid.org/0000-0003-0749-5563

Cappelli, Lorenzo

DataCurator

Department of Geosciences, Environment and Society; Université libre de Bruxelles; Bruxelles, 1050, Belgium

ORCID:

https://orcid.org/0000-0003-0749-5563

Cappelli, Lorenzo

Researcher

Department of Geosciences, Environment and Society; Université libre de Bruxelles; Bruxelles, 1050, Belgium

ORCID:

https://orcid.org/0000-0003-0749-5563

Buono, Gianmarco

ContactPerson

Istituto Nazionale di Geofisica e Vulcanologia, Italy

ORCID:

https://orcid.org/0000-0002-5474-1985

Buono, Gianmarco

DataCollector

Istituto Nazionale di Geofisica e Vulcanologia, Italy

ORCID:

https://orcid.org/0000-0002-5474-1985

Buono, Gianmarco

DataCurator

Istituto Nazionale di Geofisica e Vulcanologia, Italy

ORCID:

https://orcid.org/0000-0002-5474-1985

Buono, Gianmarco

Researcher

Istituto Nazionale di Geofisica e Vulcanologia, Italy

ORCID:

https://orcid.org/0000-0002-5474-1985

Buono, Gianmarco

RightsHolder

Istituto Nazionale di Geofisica e Vulcanologia, Italy

ORCID:

https://orcid.org/0000-0002-5474-1985

Pappalardo, Lucia

ContactPerson

Istituto Nazionale di Geofisica e Vulcanologia, Italy

ORCID:

https://orcid.org/0000-0002-9187-252X

Pappalardo, Lucia

DataCollector

Istituto Nazionale di Geofisica e Vulcanologia, Italy

ORCID:

https://orcid.org/0000-0002-9187-252X

Pappalardo, Lucia

DataCurator

Istituto Nazionale di Geofisica e Vulcanologia, Italy

ORCID:

https://orcid.org/0000-0002-9187-252X

Pappalardo, Lucia

Researcher

Istituto Nazionale di Geofisica e Vulcanologia, Italy

ORCID:

https://orcid.org/0000-0002-9187-252X

Pappalardo, Lucia

RightsHolder

Istituto Nazionale di Geofisica e Vulcanologia, Italy

ORCID:

https://orcid.org/0000-0002-9187-252X

Fontijn, Karen

DataCollector

Department of Geosciences, Environment and Society; Université libre de Bruxelles; Bruxelles, Belgium

ORCID:

https://orcid.org/0000-0001-7218-4513

Fontijn, Karen

DataCurator

Department of Geosciences, Environment and Society; Université libre de Bruxelles; Bruxelles, Belgium

ORCID:

https://orcid.org/0000-0001-7218-4513

Fontijn, Karen

Researcher

Department of Geosciences, Environment and Society; Université libre de Bruxelles; Bruxelles, Belgium

ORCID:

https://orcid.org/0000-0001-7218-4513

Fontijn, Karen

RightsHolder

Department of Geosciences, Environment and Society; Université libre de Bruxelles; Bruxelles, Belgium

ORCID:

https://orcid.org/0000-0001-7218-4513

Ernst, Gerald G.J.

Researcher

van Gerve, Thomas

Researcher

Department of Earth and Environmental Sciences, KU Leuven, Leuven, Belgium

ORCID:

https://orcid.org/0000-0002-8776-1552

Namur, Olivier

Researcher

Department of Earth and Environmental Sciences, KU Leuven, Leuven, Belgium

ORCID:

https://orcid.org/0000-0001-9129-3264

Sielenou, Vanessa N.

Researcher

Department of Geosciences, Environment and Society; Université libre de Bruxelles; Bruxelles, Belgium

Mbede, Evelyne

Researcher

School of Mines and Geosciences; University of Dar es Salaam; Dar es Salaam, Tanzania

ORCID:

https://orcid.org/0000-0002-2134-0253

Edista, Abdallah

Researcher

School of Mines and Geosciences; University of Dar es Salaam; Dar es Salaam, Tanzania

Kwelwa, Shimba

Researcher

AngloGold Ashanti, Tanzania

Micro-CT laboratory (INGV, Italy)

HostingInstitution

INGV, Naples, Italy

labid:

ce5d8e47870f8569af48c8fd17a563c5

Cappelli, Lorenzo

ContactPerson

Department of Geosciences, Environment and Society; Université libre de Bruxelles; Bruxelles, 1050, Belgium


References

10.31223/x5rb12

10.1016/j.jvolgeores.2010.07.021

10.1007/s00445-011-0486-8


Citation

Cappelli, L., Buono, G., Pappalardo, L., Fontijn, K., Ernst, G. G. J., van Gerve, T., Namur, O., Sielenou, V. N., Mbede, E., Edista, A., & Kwelwa, S. (2025). 3D microXCT scans of 1mm pumiceous clasts from Rungwe Pumice eruption deposit (Tanzania) [Data set]. GFZ Data Services. https://doi.org/10.5880/FIDGEO.2025.023


Dates

Available:

2025-07-01

Created:

2024-04-10

Issued:

2025


Funding References

Funder name: European Commission

Funder identifier: https://doi.org/10.13039/501100000780

Funder identifier type: Crossref Funder ID

Award number: 101005611 and 101131765

Award title: Horizon Europe - EXCITE 2 TNA


Rights

Creative Commons Attribution 4.0 International


Geo location(s)

Location of the Rungwe Pumice type section KF176 sampled in 2008