Dataset of glass and mineral geochemical data of Holocene volcanic ashes of NW Argentina

Fernandez-Turiel, J. L.; Rejas, Marta; Pérez Torrado, Francisco José; Saavedra Alonso, Julio; Rodriguez-Gonzalez, Alejandro;

Groundmass 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.

Sub domains
  • geochemistry
  • microscopy and tomography
Source http://dx.doi.org/10.20350/digitalCSIC/8553
Source publisher DIGITAL.CSIC
Publication date 20-07-2018
DOI 10.20350/digitalCSIC/8553
Handle http://hdl.handle.net/10261/167757
License https://creativecommons.org/licenses/by/4.0/
Authors
  • Fernandez-Turiel, J. L.
  • Rejas, Marta
  • Pérez Torrado, Francisco José
  • Saavedra Alonso, Julio
  • Rodriguez-Gonzalez, Alejandro
Contributors
  • Fernandez-Turiel, J. L.
  • contactPerson
  • Laboratory of Geochemistry labGEOTOP CSIC-ICTJA
  • hostingInstitution
  • Laboratorios Analíticos de Geología Universitat de Barcelona
  • hostingInstitution
  • Fernandez-Turiel, J. L.
  • researcher
  • Rejas, Marta
  • researcher
  • Pérez Torrado, Francisco José
  • researcher
  • Saavedra Alonso, Julio
  • researcher
References
  • Fernandez-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
  • isreferencedby
  • 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
  • isreferencedby
Contact
  • Fernandez-Turiel, J. L.
Citation Fernandez-Turiel, J. L., Rejas, M., Pérez Torrado, F. J., Saavedra Alonso, J., & Rodriguez-Gonzalez, A. (2018). Dataset of glass and mineral geochemical data of Holocene volcanic ashes of NW Argentina [Data set]. DIGITAL.CSIC. https://doi.org/10.20350/DIGITALCSIC/8553
Geo location(s)
  • name=Southern Puna, NW Argentina; geonames= http://www.geonames.org/3864153/cerrito-blanco.html; lat=min -25.7500, max -28.0000; long=min -64.0000, max -68.9000