Articles | Volume 35, issue 4
https://doi.org/10.5194/ejm-35-665-2023
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the Creative Commons Attribution 4.0 License.
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https://doi.org/10.5194/ejm-35-665-2023
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the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
First measurements of the Fe oxidation state of spinel inclusions in olivine single crystals from Vulture (Italy) with the in situ synchrotron micro-Mössbauer technique
Dipartimento di Scienze della Terra, Sapienza Università di Roma,
Rome, Italy
Gabriele Carnevale
Dipartimento di Scienze della Terra e del Mare, Università degli
Studi di Palermo, Palermo, Italy
Antonio Caracausi
Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Palermo,
Palermo, Italy
Departamento de Geología, Universidad de Salamanca, Salamanca,
Spain
Silvio Giuseppe Rotolo
Dipartimento di Scienze della Terra e del Mare, Università degli
Studi di Palermo, Palermo, Italy
Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Palermo,
Palermo, Italy
Vincenzo Stagno
CORRESPONDING AUTHOR
Dipartimento di Scienze della Terra, Sapienza Università di Roma,
Rome, Italy
Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Roma,
Rome, Italy
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Short summary
We present the first determinations of the Fe oxidation state of tiny spinel inclusions (<40 µm) in olivine from a wehrlitic lapillus collected at Mt. Vulture (Italy) via in situ synchrotron Mössbauer spectroscopy. These data, along with the chemistry of olivine and (rare) orthopyroxene, allowed us to calculate the logfO2 of the wehrlitic sample. This study opens the possibility to retrieve the redox state of mantle xenoliths using the Fe3+ / ∑Fe and chemistry of spinel inclusions in olivine.
We present the first determinations of the Fe oxidation state of tiny spinel inclusions (<40 µm) in olivine from a wehrlitic lapillus collected at Mt. Vulture (Italy) via in situ synchrotron Mössbauer spectroscopy. These data, along with the chemistry of olivine and (rare) orthopyroxene, allowed us to calculate the logfO2 of...40 µm)>