- Tytuł:
- High temperature transformation of iron-bearing minerals in basalt: Mössbauer spectroscopy studies
- Autorzy:
-
Kądziołka-Gaweł, Mariola
Wojtyniak, Marcin
Klimontko, Joanna - Powiązania:
- https://bibliotekanauki.pl/articles/2086563.pdf
- Data publikacji:
- 2022
- Wydawca:
- Polskie Towarzystwo Mineralogiczne
- Tematy:
-
basalts
high temperature affects
Mössbauer spectroscopy
Fe-bearing minerals - Opis:
- 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 200o C and 1100o C for three hours. Up to a temperature of 500o C changes in contribution of Fe-bearing minerals are insignificant. Heating in the temperature range from 500o C to 1100o 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 1100o 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 1100o C this ratio amounted to 0.89.
- Źródło:
-
Mineralogia; 2022, 53, 1; 10--19
1899-8291
1899-8526 - Pojawia się w:
- Mineralogia
- Dostawca treści:
- Biblioteka Nauki
Artykuł