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

Description: 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.

Global identifier:

Doi(
    "10.5880/fidgeo.2025.023",
)

Tags: Asche ? Software ? Projektion ? 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 ? EPOS ? Plinian eruption ? Pyroclastic textures ? Rungwe Pumice eruption ? Vesicle textures ? 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 ? geochemistry and microscopy ? geochemistry data ? multi-scale laboratories ?

License: Creative Commons Namensnennung 4.0

Language: Englisch/English

Organisations

• GFZ Data Services (Herausgeberschaft)
• GFZ Helmholtz-Zentrum für Geoforschung (Bereitstellung)

Persons

• Buono, Gianmarco (Verfasser*in)
• Buono, Gianmarco (Beitragende*r)
• Cappelli, Lorenzo (Verfasser*in)
• Cappelli, Lorenzo (Beitragende*r)
• Edista, Abdallah (Verfasser*in)
• Edista, Abdallah (Beitragende*r)
• Ernst, Gerald G.J. (Verfasser*in)
• Ernst, Gerald G.J. (Beitragende*r)
• Fontijn, Karen (Verfasser*in)
• Fontijn, Karen (Beitragende*r)
• Kwelwa, Shimba (Verfasser*in)
• Kwelwa, Shimba (Beitragende*r)
• Mbede, Evelyne (Verfasser*in)
• Mbede, Evelyne (Beitragende*r)
• Micro-CT laboratory (INGV, Italy) (Beitragende*r)
• Namur, Olivier (Verfasser*in)
• Namur, Olivier (Beitragende*r)
• Pappalardo, Lucia (Verfasser*in)
• Pappalardo, Lucia (Beitragende*r)
• Sielenou, Vanessa N. (Verfasser*in)
• Sielenou, Vanessa N. (Beitragende*r)
• van Gerve, Thomas (Verfasser*in)
• van Gerve, Thomas (Beitragende*r)

Issued: 2025-01-01

Last harvest: 30.06.2026 23:49

Status

Aktiv

Quality score

• Overall: 0.62
• Findability: 0.58

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