Published December 13, 2022
| Version 1
Dataset
Open
Etna Glass analyses May-October2021 (GMCET_MO2021)
Contributors
Contact person:
Rights holder:
- 1. Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Description
The database consist of glass compositions (major elements) of pyroclasts sampled at Etna from May to October 2021 during the INGV-OE petrologic monitoring activity.
Methods (English)
The glass compositions of major elements have been analyzed at INGV-OE with Zeiss LEO-1430 scanning electron microscope, equipped with an INCA ENERGY Oxford Instruments EDS micro-analytical system (SEM-EDS). Analytical conditions are 20 keV of acceleration tension, 1200 nA of beam current and XPP data reduction routine. In order to minimize alkalis loss during analysis, a square raster of 10 microns is used. The accuracy of our measurements has been checked through replicate analyses of the international standard VG-2 Glass basaltic, USNM 111240/52 (Jarosewich et al., 1980). The precision, expressed as relative standard deviation, is less than 1% for SiO2, Al2O3, FeO, MgO and CaO and less than 3% for TiO2, MnO, Na2O, K2O and P2O5 (Miraglia, 2012). The analyses have been performed in groundmass glass containing less than 15% microlites. Each measure is the average of 10 to 15 analyses.Technical info (English)
Dataset Legend Sample label: name identificative of the sample the acronyms used for Etna summit craters are: VOR= Voragine Crater, BN=Bocca Nuova Crater, NEC=North-East Crater, SEC=South-East Crater, NSEC=New South-East Crate; Data emission: Date of sample eruption; Sample Type: field characteristics of a sample (bomb, lapilli or ash); Activity type: description of the volcanic activity provided from the Access archive of the INGV-OE Petroteca.Files
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Additional details
Identifiers
Dates
- Collected
-
2021-05-19/2021-10-23
- Valid
-
2021-05-19/2021-10-23