|Basic information||Name: Bernic Lake|
This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2002
Mass: 9.16 kg
This is 1 of 84 approved meteorites classified as Iron, IAB-MG. [show all]
Search for other: IAB complex irons, Metal-rich meteorites, and Iron meteorites
|Comments:||Approved 2 Feb 2012|
Writeup from MB 100:
Bernic Lake 50°26.307’N, 95°31.762’W
Found: October 2002
Classification: Iron meteorite (IAB-MG)
History: In October 2002, the discovery of two irregularly shaped meteorite fragments weighing 5.5 and 4.3 kg was reported to the Prairie Meteorite Search (run by the Universities of Calgary, Western Ontario and Regina) by Derek Erstelle from Winnipeg, Manitoba. The discovery site is east of Lac du Bonnet, 3.6 km from the junction with Highway 315 along the Tanco Mine Road. Bernic Lake, the site of the Tanco Mine, is the nearest geographical feature and is the source of the name. The two fragments were found in a sandy area within 5 m of each other.
Physical characteristics: The two specimens are heavily weathered to reddish-brown oxides that penetrate along fractures into the interior
Petrography: (S. Kissin, LHU) Etched sections show average bandwidth of 4.3 ± 1.3 mm (n=19). Kamacite lamellae are stubby and irregular, and contain abundant Neumann lines. Taenite is limited to minute lamellae and blebs. Schreibersite is present as sparse Brezina lamellae and rhabdites.
Geochemistry: (S. Kissin, LHU): Ni = 65, Co = 4.3 (both mg/g); Cu = 130, Ga = 83, Ge = 353, As = 11.3, Ir = 3.32, Pt = 6.5, and Au = 1.4 (all in μg/g) obtained by INAA (Actlabs)
Classification: Iron meteorite, IAB-MG, coarsest octahedrite (S. Kissin, LHU)
Specimens: Two main masses, 5086 g and 4076 g, were acquired by the ROM. A 444 g slice was removed from the larger mass and transferred to UAb.
LHU: Department of Geology, Lakehead University, 955 Oliver Road, Thunder Bay, Ontario P7B 5E1, Canada (institutional address)
ROM: Royal Ontario Museum, 100 Queen's Park, Toronto, Ontario M5S 2C6, Canada (institutional address)
UAb: University of Alberta, Alberta T6G 2E3, Canada (institutional address; updated 10 Jul 2010)
|References:||Published in Meteoritical Bulletin, no. 100, MAPS 46, in preparation (2013)|
This is 1 of 5 approved meteorites from Manitoba, Canada (plus 2 impact craters)
This is 1 of 61 approved meteorites from Canada (plus 5 unapproved names) (plus 30 impact craters)
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