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Metadata Files

Data Publication

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

DIGITAL.CSIC

(2018)

Descriptions

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.
Analytical 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

Keywords


Originally assigned keywords
in situ - mineral or glass analysis
major oxides
EMP
glass
mineral
igneous rock
rhyolite
dacite
K-feldspar
Plagioclase
Biotite
Magnetite
Ilmenite
Pyroxene
Amphibole
land section
http://www.earthchem.org/petdbWeb/search/vocabulary.jsp?category=MeasuredParameter
http://www.earthchem.org/petdbWeb/search/vocabulary.jsp?category=Method

Corresponding MSL vocabulary keywords
major elements
major elements
minerals
rhyolite
dacite
feldspar - plagioclase
biotite
magnetite
ilmenite
amphibole

MSL enriched keywords
analysis
microchemical analysis
major elements
whole rock analysis
major elements
minerals
igneous rock - extrusive
acidic extrusive
rhyolite
dacite
silicate minerals
tectosilicates
feldspar - plagioclase
phyllosilicates
mica
biotite
oxide mineral
magnetite
ilmenite
inosilicates
amphibole
unconsolidated sediment
tephra
volcanic ash
Phanerozoic
Cenozoic
Quaternary
Holocene
lava

MSL enriched sub domains i

geochemistry

Source

https://digital.csic.es/handle/10261/167757

Source publisher

DIGITAL.CSIC


DOI

10.20350/digitalcsic/8553


Creators

Fernandez-Turiel, J. L.

Rejas, Marta

Pérez Torrado, Francisco José

Saavedra Alonso, Julio

Rodriguez-Gonzalez, Alejandro


Contributors

Digital.CSIC

DataManager

Digital.CSIC

HostingInstitution


References

10261/84582

10261/130983


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


Dates

Accepted:

2018-07-20

Available:

2018-07-20

Issued:

2018-07-20


Language

en


Rights

embargoedAccess

Creative Commons Attribution 4.0 International