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Dataset of particle size distribution data of Holocene volcanic ashes of NW Argentina

AutorFernandez-Turiel, J. L. ; Rejas, Marta ; Pérez Torrado, Francisco José; Saavedra Alonso, Julio ; Rodriguez-Gonzalez, Alejandro; Laboratory of X-ray Diffraction CSIC-ICTJA
Palabras clavein situ - mineral or glass analysis
major oxides
EMP
glass
mineral
igneous rock
rhyolite
K-feldspar
Plagioclase
Biotite
Magnetite
Ilmenite
land section
Fecha de publicación20-jul-2018
EditorDIGITAL.CSIC
CitaciónFernandez-Turiel, J. L.; Rejas, Marta; Pérez-Torrado, Francisco José; Saavedra Alonso, Julio; Rodriguez-Gonzalez, Alejandro, 2018. "Dataset of particle size distribution data of Holocene volcanic ashes of NW Argentina", DIGITAL.CSIC, http://dx.doi.org/10.20350/digitalCSIC/8554
ResumenThis dataset includes particle size distribution data of volcanic ashes of Southern Puna and neighbouring areas (NW Argentina). The content of particles of 0.1–1000 μm was determined by lasser diffraction. The studied volcanic materials are mainly associated with the 4.2 ka cal BP eruption of the Cerro Blanco Volcanic Complex. Some samples area related to the Cueros de Purulla volcano.
DescripciónGrain size distributions were determined in volcanic ash samples using a Malvern Mastersizer 2000 particle analyser, equipped with a laser diffractometer (ultrasonic water disaggregation: Hydro MU system; absorption: 0.1; refractive index: 1.52; measurement time: 20 s; obscuration: 10–20%; and pump speed: 2500 rpm, 3 measures), following the recommended procedures of the International Volcanic Health Hazard Network (IVHHN, www.ivhhn.org). This technique measures particles of 0.1–1000 μm using the Mie Theory; due to this limitation, only distal ash samples with maximum grain sizes of < 1 mm for the complete deposit (not grain fractionated) were analysed. The particle-size abundance is reported as the volume percentage of equivalent spherical diameter. Contact person: Fernandez-Turiel, J. L., jlfernandez@ictja.csic.es
URIhttp://hdl.handle.net/10261/167764
DOIhttp://dx.doi.org/10.20350/digitalCSIC/8554
ReferenciasFernandez-Turiel, J.-L.; Saavedra, J.; Perez-Torrado, F. J.; Rodriguez-Gonzalez, A.; Carracedo, J. C., Osterrieth, M., Carrizo, J. I.; Esteban, G. The largest holocene eruption of the Central Andes found. AGU Fall Meeting, San Francisco, USA. December 9-13, 2013. Control ID: 1787188. Poster V13D-2639. Session V13D. Geochronology, Correlation, and Climatic Significance of Widespread Volcanic Ash Layers II Posters (cosponsored by EGU-GMPV. http://hdl.handle.net/10261/84582
Fernandez-Turiel, J.-L.; Saavedra, J.; Perez-Torrado, F. J.; Rodriguez-Gonzalez, A.; Carracedo, J. C.; Lobo, A.; Rejas, M.; Gallardo, J. F.; Osterrieth, M.; Carrizo, J. I.; Esteban, G.; Martínez, L. D.; Gil, R. A.; Ratto, N.; Baez, W. The ash deposits of the 4200 BP Cerro Blanco eruption: the largest Holocene eruption of the Central Andes. EGU General Assembly 2015, 12-17 April, Vienna, Austria. Geophysical Research Abstracts, 2015, Vol. 17, EGU2015-3392. http://hdl.handle.net/10261/130983
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