Lac Dodon
| Lac Dodon | |
|---|---|
| Type | Iron |
| Structural classification | Coarse octahedrite |
| Group | IABcomplex[1] |
| Composition | 91%Fe,8.64%Ni,71 ppmGa,377 ppmGe,3.30 ppmIr |
| Country | Canada |
| Region | Quebec,Canada |
| Coordinates | 45°57′00″N73°55′00″W/ 45.95000°N 73.91667°W |
| Observed fall | no |
| Found date | 1993 |
| TKW | 0.8 kilograms (1.8 lb)[1] |
Lac Dodonis aniron meteoritediscovered by Roland Octerneau of Montreal on rural private property near Lac Dodon,Saint-Calixte, Quebec.[1][2]
The recovered fragment measures approximately 10 centimetres (3.9 in) x 5 centimetres (2.0 in) x 6 centimetres (2.4 in). The meteorite was oxidized on its exterior and lying at the surface of the ground.
Composition and classification
[edit]The meteorite is acoarse octahedrite(mean bandwidth 1.34mm) with narrow cloudytaenitebands separating thekamacitelamellae. Occasional areas of coarse to fine acicular plessite and net plessite areNeumann linesand rhabdites. Sparsely developed Brezina lamellae and fine-grained globularschreibersiteare present. At one exterior surface, a heat-affected zone 0.1mm thick containing unequilibrated alpha(sub)2-kamacite is preserved. Cloudy taenite extending into this zone has developed bainitic texture. The presence of the zone suggests a relatively recent fall.
References
[edit]- ^abcMeteoritical Bulletin Database
- ^Kissin,S. A.; Herd, R. K., 1995, Two New Iron Meteorites from the Province of Quebec, Canada, Meteoritics, vol. 30,no. 5, page 527
See also
[edit]
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