- Tytuł:
- Ba-Fe titanates in Peralkaline granite of the Ilímaussaq Complex, South Greenland
- Autorzy:
-
Cegiełka, Małgorzata
Bagiński, Bogusław
Macdonald, Ray
Marciniak-Maliszewska, Beata
Stachowicz, Marcin - Powiązania:
- https://bibliotekanauki.pl/articles/2023983.pdf
- Data publikacji:
- 2021
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
Ilímaussaq peralkaline granite
henrymeyerite
low-Fe Ba Titanate
granit
minerały
kryształy
tytanian baru - Opis:
- A peralkaline granite of the Ilímaussaq Complex, South Greenland, contains the rare mineral henrymeyerite [(Ba0.92Na 0.05Ca0.03) 1.0(Ti6.87Fe2+1.04Nb 0.03)7.9O 16], a low-Fe Ba titanate [(Ba0.74 Ca0.02Na 0.05) 0.8 (Ti4.9o Fe2+0.15Nb 0.04)5.1O 11], and an unidentified Ba titanosilicate. Both titanates show the coupled substitution 2Na+ + Si4+→ Ba2+ + Ti4+. The minerals are present as tiny crystals fringing ilmenite inclusions in an amphibole crystal and are thought to have formed during the hydrothermal stage of the granite’s evolution.
- Źródło:
-
Acta Geologica Polonica; 2022, 72, 1; 1--8
0001-5709 - Pojawia się w:
- Acta Geologica Polonica
- Dostawca treści:
- Biblioteka Nauki