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Dataset of glass and mineral geochemical 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 Geochemistry labGEOTOP CSIC-ICTJA; Laboratorios Analíticos de Geología Universitat de Barcelona
Palabras clavein situ - mineral or glass analysis
major oxides
EMP
glass
mineral
igneous rock
rhyolite
dacite
K-feldspar
Plagioclase
Biotite
Magnetite
Ilmenite
Pyroxene
Amphibole
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 glass and mineral geochemical data of Holocene volcanic ashes of NW Argentina", DIGITAL.CSIC, http://dx.doi.org/10.20350/digitalCSIC/8553
ResumenGroundmass glass, phenocrysts, microphenocrysts, and microlites of glass shards (1011 analyses at single points), feldspars (568), biotites (183), Fe–Ti oxides (101), amphiboles (30), and pyroxenes (14) were analysed on polished thin sections of Holocene volcanic ashes, ignimbrites and lava domes of Southern Puna and neighbouring areas (NW Argentina) by electron probe microanalyser (EPMA). The quality of mineral analyses was reviewed, verifying that the structural formula gave a correct stoichiometry with specific measuring programs for feldspars, biotite, Fe–Ti oxides, pyroxene, and amphibole. Geothermobarometry was constrained using the chemistry of feldspars, Fe–Ti oxides, clinopyroxene, and amphibole. The studied volcanic materials are mainly associated with the 4.2 ka cal BP eruption of the Cerro Blanco Volcanic Complex.
DescripciónAnalytical results were determined by a CAMECA SX-50 and a JEOL JXA-8230 electron probe microanalysers (EPMA) at the EPMA Laboratory of the CCiT services of the University of Barcelona. The instruments were calibrated using primary natural and synthetic standards. The quality of mineral analyses was reviewed, verifying that the structural formula gave a correct stoichiometry, with specific measuring programs for feldspars, biotite, Fe–Ti oxides, pyroxene, and amphibole.Contact person: Fernandez-Turiel, J. L., jlfernandez@ictja.csic.es
URIhttp://hdl.handle.net/10261/167757
DOIhttp://dx.doi.org/10.20350/digitalCSIC/8553
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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NW_Argentina_Holocene_volcanic_ashes-EMP_geochemistry-1_data-glass.xlsx Embargado hasta 31 de diciembre de 2020278,65 kBMicrosoft Excel XMLVisualizar/Abrir     Petición de una copia
NW_Argentina_Holocene_volcanic_ashes-EMP_geochemistry-2_data-feldspars.xlsx Embargado hasta 31 de diciembre de 2020240,12 kBMicrosoft Excel XMLVisualizar/Abrir     Petición de una copia
NW_Argentina_Holocene_volcanic_ashes-EMP_geochemistry-3_data-biotite.xlsx Embargado hasta 31 de diciembre de 2020162,53 kBMicrosoft Excel XMLVisualizar/Abrir     Petición de una copia
NW_Argentina_Holocene_volcanic_ashes-EMP_geochemistry-4_data-magnetite.xlsx Embargado hasta 31 de diciembre de 2020149,71 kBMicrosoft Excel XMLVisualizar/Abrir     Petición de una copia
NW_Argentina_Holocene_volcanic_ashes-EMP_geochemistry-5_data-ilmenite.xlsx Embargado hasta 31 de diciembre de 2020146,36 kBMicrosoft Excel XMLVisualizar/Abrir     Petición de una copia
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