- Tytuł:
- Mineralogy of the Baszkówka chondrite (L5 S1): new data on silicates, opaques and minor minerals
- Autorzy:
-
Borucki, J.
Stępniewski, M. - Powiązania:
- https://bibliotekanauki.pl/articles/2059302.pdf
- Data publikacji:
- 2001
- Wydawca:
- Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
- Tematy:
-
Baszkówka
meteorites
ordinary chondrites
minerals
spinel
picotite - Opis:
- The mineral composition of the Baszkówka meteorite comprises: olivine, pyroxenes, plagioclase, Fe,Ni metal, troilite and chromite with minor chlorapatite, whitlockite, magnetite, haematite, spinel, idaite, calcite and native Cu. A rare variety of spinel (picotite), probably the oldest among the minerals of Baszkówka, was identified in the only two chondrules named: panda and chevron. The composition of the olivine (Fa 26.2š1.8 wt.%) and the high degree of chondrite homogenisation, a result of thermal metamorphism, are consistent with earlier results and indicate the L5 group. No distinct shock effects were observed in Baszkówka, classified as S1. Troilite-Fe,Ni and Fe,Ni metal lumps are defined and interpreted as molten planetesimals impact splashes.
- Źródło:
-
Geological Quarterly; 2001, 45, 3; 229-256
1641-7291 - Pojawia się w:
- Geological Quarterly
- Dostawca treści:
- Biblioteka Nauki
Artykuł