10.5880/fidgeo.2025.023 Cappelli, Lorenzo Lorenzo Cappelli 0000-0003-0749-5563 Department of Geosciences, Environment and Society; Université libre de Bruxelles; Bruxelles, 1050, Belgium Buono, Gianmarco Gianmarco Buono 0000-0002-5474-1985 Istituto Nazionale di Geofisica e Vulcanologia, Italy Pappalardo, Lucia Lucia Pappalardo 0000-0002-9187-252X Istituto Nazionale di Geofisica e Vulcanologia, Italy Fontijn, Karen Karen Fontijn 0000-0001-7218-4513 Department of Geosciences, Environment and Society; Université libre de Bruxelles; Bruxelles, Belgium Ernst, Gerald G.J. Gerald G.J. Ernst van Gerve, Thomas Thomas van Gerve 0000-0002-8776-1552 Department of Earth and Environmental Sciences, KU Leuven, Leuven, Belgium Namur, Olivier Olivier Namur 0000-0001-9129-3264 Department of Earth and Environmental Sciences, KU Leuven, Leuven, Belgium Sielenou, Vanessa N. Vanessa N. Sielenou Department of Geosciences, Environment and Society; Université libre de Bruxelles; Bruxelles, Belgium Mbede, Evelyne Evelyne Mbede 0000-0002-2134-0253 School of Mines and Geosciences; University of Dar es Salaam; Dar es Salaam, Tanzania Edista, Abdallah Abdallah Edista School of Mines and Geosciences; University of Dar es Salaam; Dar es Salaam, Tanzania Kwelwa, Shimba Shimba Kwelwa AngloGold Ashanti, Tanzania GFZ Data Services 2025 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 Cappelli, Lorenzo Lorenzo Cappelli 0000-0003-0749-5563 Department of Geosciences, Environment and Society; Université libre de Bruxelles; Bruxelles, 1050, Belgium Cappelli, Lorenzo Lorenzo Cappelli 0000-0003-0749-5563 Department of Geosciences, Environment and Society; Université libre de Bruxelles; Bruxelles, 1050, Belgium Cappelli, Lorenzo Lorenzo Cappelli 0000-0003-0749-5563 Department of Geosciences, Environment and Society; Université libre de Bruxelles; Bruxelles, 1050, Belgium Cappelli, Lorenzo Lorenzo Cappelli 0000-0003-0749-5563 Department of Geosciences, Environment and Society; Université libre de Bruxelles; Bruxelles, 1050, Belgium Buono, Gianmarco Gianmarco Buono 0000-0002-5474-1985 Istituto Nazionale di Geofisica e Vulcanologia, Italy Buono, Gianmarco Gianmarco Buono 0000-0002-5474-1985 Istituto Nazionale di Geofisica e Vulcanologia, Italy Buono, Gianmarco Gianmarco Buono 0000-0002-5474-1985 Istituto Nazionale di Geofisica e Vulcanologia, Italy Buono, Gianmarco Gianmarco Buono 0000-0002-5474-1985 Istituto Nazionale di Geofisica e Vulcanologia, Italy Buono, Gianmarco Gianmarco Buono 0000-0002-5474-1985 Istituto Nazionale di Geofisica e Vulcanologia, Italy Pappalardo, Lucia Lucia Pappalardo 0000-0002-9187-252X Istituto Nazionale di Geofisica e Vulcanologia, Italy Pappalardo, Lucia Lucia Pappalardo 0000-0002-9187-252X Istituto Nazionale di Geofisica e Vulcanologia, Italy Pappalardo, Lucia Lucia Pappalardo 0000-0002-9187-252X Istituto Nazionale di Geofisica e Vulcanologia, Italy Pappalardo, Lucia Lucia Pappalardo 0000-0002-9187-252X Istituto Nazionale di Geofisica e Vulcanologia, Italy Pappalardo, Lucia Lucia Pappalardo 0000-0002-9187-252X Istituto Nazionale di Geofisica e Vulcanologia, Italy Fontijn, Karen Karen Fontijn 0000-0001-7218-4513 Department of Geosciences, Environment and Society; Université libre de Bruxelles; Bruxelles, Belgium Fontijn, Karen Karen Fontijn 0000-0001-7218-4513 Department of Geosciences, Environment and Society; Université libre de Bruxelles; Bruxelles, Belgium Fontijn, Karen Karen Fontijn 0000-0001-7218-4513 Department of Geosciences, Environment and Society; Université libre de Bruxelles; Bruxelles, Belgium Fontijn, Karen Karen Fontijn 0000-0001-7218-4513 Department of Geosciences, Environment and Society; Université libre de Bruxelles; Bruxelles, Belgium Ernst, Gerald G.J. Gerald G.J. Ernst van Gerve, Thomas Thomas van Gerve 0000-0002-8776-1552 Department of Earth and Environmental Sciences, KU Leuven, Leuven, Belgium Namur, Olivier Olivier Namur 0000-0001-9129-3264 Department of Earth and Environmental Sciences, KU Leuven, Leuven, Belgium Sielenou, Vanessa N. Vanessa N. Sielenou Department of Geosciences, Environment and Society; Université libre de Bruxelles; Bruxelles, Belgium Mbede, Evelyne Evelyne Mbede 0000-0002-2134-0253 School of Mines and Geosciences; University of Dar es Salaam; Dar es Salaam, Tanzania Edista, Abdallah Abdallah Edista School of Mines and Geosciences; University of Dar es Salaam; Dar es Salaam, Tanzania Kwelwa, Shimba Shimba Kwelwa AngloGold Ashanti, Tanzania Micro-CT laboratory (INGV, Italy) ce5d8e47870f8569af48c8fd17a563c5 INGV, Naples, Italy Cappelli, Lorenzo Department of Geosciences, Environment and Society; Université libre de Bruxelles; Bruxelles, 1050, Belgium 2025-07-01 2024-04-10 Dataset 10.31223/X5RB12 10.1016/j.jvolgeores.2010.07.021 10.1007/s00445-011-0486-8 CC BY 4.0 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.
Location of the Rungwe Pumice type section KF176 sampled in 2008 European Commission http://dx.doi.org/10.13039/501100000780 101005611 and 101131765 Horizon Europe - EXCITE 2 TNA