Mistastin crater

Mistastin Lake
Landsat Image
Location	Labrador, Newfoundland and Labrador, Canada
Coordinates	55°53′N 63°18′W / 55.883°N 63.3°W / 55.883; -63.3Coordinates: 55°53′N 63°18′W / 55.883°N 63.3°W / 55.883; -63.3
Lake type	impact crater lake
Basin countries	Canada
Max. length	19 km (12 mi)
Max. width	12 km (7.5 mi)
Surface area	145 km2 (56 sq mi)
Surface elevation	338 metres (1,109 ft)
Islands	Horseshoe Island

Mistastin crater is a meteorite crater in Labrador, Canada which contains the roughly circular Mistastin Lake.^[1]

The lake's arcuate central island is interpreted to be the central uplift of the complex crater structure. The target rocks were part of a batholith composed of adamellite, mangerite and lenses of anorthosite. There are abundant shock metamorphic features exhibited in the rocks of the island. Planar deformation features, diaplectic glass, melt rocks, and shatter cones have been identified.

The lake is approximately 16 km (9.9 mi) in diameter, while the estimated diameter of the original crater is 28 km (17 mi). The age of the crater is estimated to be 36.4 ± 4 million years (Eocene).

References

1. ^ "Mistastin". Earth Impact Database. University of New Brunswick. http://www.passc.net/EarthImpactDatabase/mistastin.html. Retrieved 2007-01-13. 

Additional sources

• Currie, K.L. (1968) "Mistastin Lake, Labrador: A new Canadian crater". Nature, v. 220, pp. 776-777.
• Currie, K.L. Larochelle, A. (1969) "A paleomagnetic study of volcanic rocks from Mistastin Lake, Labrador, Canada". Earth and Planetary Science Letters, v. 6, pp. 309-315.
• Currie, K.L. (1971) "Geology of the resurgent cryptoexplosion crater at Mistastin Lake, Labrador". Geological Survey of Canada Bulletin 207, 62 p.
• Currie, K.L. (1971) "The composition of anomalous plagioclase glass and coexisting plagioclase from Mistastin Lake, Labrador, Canada". Mineralogical Magazine, v. 38, pp. 511-517.
• Grieve, R.A.F. (1975) "Petrology and chemistry of the impact melt at Mistastin Lake crater, Labrador". Geological Society of America Bulletin 86, pp. 1617-1629.
• Mak, E.K.C. York, D., Grieve, R.A.F. and Dence, M.R. (1976) "The age of the Mistastin Lake crater, Labrador, Canada". Earth and Planetary Science Letters, v. 31, pp. 345-357.
• Marchand, M. Crocket, J.H. (1977) "Sr isotopes and trace element geochemistry of the impact melt and target rocks at the Mistastin Lake crater, Labrador". Geochimica et Cosmochimica Acta, v. 41, pp. 1487-1495.

External links

• Aerial Exploration of the Mistastin Structure

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This article about a specific Canadian geological feature is a stub. You can help Wikipedia by expanding it.v · Categories: Earth Impact Database Impact craters of Canada Eocene impact craters Labrador Lakes of Newfoundland and Labrador Labrador geography stubs Canadian geology stubs Wikimedia Foundation. 2010. Игры ⚽ Поможем написать курсовую Mishina Gora crater Mizarai crater Look at other dictionaries: Cráter de Chicxulub — Saltar a navegación, búsqueda 21°24′N 89°31′O / 21.4, 89.517 …   Wikipedia Español Impact crater — The prominent impact crater Tycho on the Moon. In the broadest sense, the term impact crater can be applied to any depression, natural or manmade, resulting from the high velocity impact of a projectile with a larger body. In most common usage,… …   Wikipedia Pingualuit crater — Crater characteristics Pingualuit Crater Planet Earth Coordinates …   Wikipedia Chicxulub crater — Imaging from NASA s Shuttle Radar Topography Mission STS 99 reveals part of the 180 kilometer (112 mi) diameter ring of the crater; clustered around the crater s trough are numerous sinkholes, suggesting a prehistoric oceanic basin in… …   Wikipedia Meteor Crater — For meteorite created craters in general, see Impact crater. Barringer Crater redirects here. For the crater on the Moon, see Barringer (lunar crater). Meteor Crater Also known as Barringer Crater …   Wikipedia Chesapeake Bay impact crater — Location of the crater in North America Chesapeake Bay impact crater Impact crater/structure …   Wikipedia Odessa Meteor Crater — Coordinates: 31°45′22.02″N 102°28′44.06″W / 31.7561167°N 102.4789056°W / 31.7561167; 102.4789056 …   Wikipedia Manicouagan crater — The crater in winter, photographed by Space Shuttle mission STS 9 in 1983 (north is to the lower right). Impact crater/structure Confidence confirmed …   Wikipedia Charlevoix crater — Coordinates: 47°32′N 70°18′W / 47.533°N 70.3°W / 47.533; 70.3 …   Wikipedia Middlesboro crater — This article is about the meteorite impact crater in Kentucky. For the meteorite that impacted in Middlesbrough, England in 1881, see Middlesbrough meteorite. The Middlesboro crater is a meteorite crater in Kentucky, United States.[1] It is named …   Wikipedia 18+ © Academic, 2000-2024 Contact us: Technical Support, Advertising Dictionaries export, created on PHP, Joomla, Drupal, WordPress, MODx. Mark and share Search through all dictionaries Translate… Search Internet Share the article and excerpts Direct link … Do a right-click on the link above and select “Copy Link”