<abstract xmlns="http://www.w3.org/1999/xhtml">

The high temperature decomposition of basalt from Lower Silesia (Poland) was followed by Mössbauer spectroscopy investigation. The Fe content of the sample was ~9.0 at.%. The X-ray diffraction analysis shows that augite (37%) and olivine (12%) are major Fe-bearing mineral components. The sample also contains significant amount of anorthite (22%) and nepheline (17%). The sample was heated at various temperatures between 200°C and 1100°C for three hours. Up to a temperature of 500°C changes in contribution of Fe-bearing minerals are insignificant. Heating in the temperature range from 500°C to 1100°C leads to a systematic increase in contribution of iron oxides at the cost of contribution of silicate minerals, like augite and olivine. Mössbauer spectrum obtained after heating at 1100°C showed hematite as the main iron oxide phase. The ratio of Fe3+/Fetot in the non-heated sample was equal to 0.51 and after heating at 1100°C this ratio amounted to 0.89.
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The high temperature decomposition of basalt from Lower Silesia (Poland) was followed by Mössbauer spectroscopy investigation. The Fe content of the sample was ~9.0 at.%. The X-ray diffraction analysis shows that augite (37%) and olivine (12%) are major Fe-bearing mineral components. The sample also contains significant amount of anorthite (22%) and nepheline (17%). The sample was heated at various temperatures between 200°C and 1100°C for three hours. Up to a temperature of 500°C changes in contribution of Fe-bearing minerals are insignificant. Heating in the temperature range from 500°C to 1100°C leads to a systematic increase in contribution of iron oxides at the cost of contribution of silicate minerals, like augite and olivine. Mössbauer spectrum obtained after heating at 1100°C showed hematite as the main iron oxide phase. The ratio of Fe3+/Fetot in the non-heated sample was equal to 0.51 and after heating at 1100°C this ratio amounted to 0.89.

High temperature transformation of iron-bearing minerals in basalt: Mössbauer spectroscopy studies

Mineralogia

This work is licensed under the Creative Commons Attribution 4.0 International License.

The high temperature decomposition of basalt from Lower Silesia (Poland) was followed by Mössbauer spectroscopy investigation. The Fe content of the sample was...

High temperature transformation of iron-bearing minerals in basalt: Mössbauer spectroscopy studies

Pubblicato online: 28 mag 2022

Pagine: 10 - 19

Ricevuto: 03 nov 2021

Accettato: 27 apr 2022

DOI: https://doi.org/10.2478/mipo-2022-0002

Parole chiave
basalts, high temperature affects, Mössbauer spectroscopy, Fe-bearing minerals

© 2022 Mariola Kądziołka-Gaweł et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

High temperature transformation of iron-bearing minerals in basalt: Mössbauer spectroscopy studies

Pubblicato online: 28 mag 2022

Pagine: 10 - 19

Ricevuto: 03 nov 2021

Accettato: 27 apr 2022

DOI: https://doi.org/10.2478/mipo-2022-0002

Parole chiavebasalts, high temperature affects, Mössbauer spectroscopy, Fe-bearing minerals

© 2022 Mariola Kądziołka-Gaweł et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Parole chiave
basalts, high temperature affects, Mössbauer spectroscopy, Fe-bearing minerals