Jump to content

Cape York meteorite

From Wikipedia, the free encyclopedia

This is an old revision of this page, as edited by 96.227.164.179 (talk) at 21:17, 27 April 2008 (weight figure data). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

The Cape York meteorite, which collided with Earth nearly 10,000 years ago, is named for Cape York, the location of its discovery in Greenland, and is one of the largest iron meteorites in the world. It is primarily made up of iron and nickel metals, weighs approximately 30.875 t (part of a total of 58 tonns , and was one of several other masses in its fall. The masses were known to the Inuit as Ahnighito (the Tent), weighing ~31 tons, the Woman (2½ tons), and the Dog (½ ton). For centuries, Inuit living near it used it as a source of metal for tools and harpoons.[1][2]

The first rumors of its existence reached scientific circles in 1818. Five expeditions between 1818 and 1883 failed to find the source of the iron. It was located in 1894 by Robert Peary, the famous Arctic explorer, who had enlisted the help of a local guide who brought him to Saviksoah Island off northern Greenland's Cape York in 1894.

It took Peary three years to manage to load the pieces onto ships and required the building of Greenland's only railway.

Having successfully stolen the pieces, he sold them for $40,000 to the American Museum of Natural History in New York City where they still stand (2007). The 3.4 m x 2.1 m x 1.7 m Ahnighito is now on display in the Arthur Ross Hall. The mass is so heavy that it was necessary to build its stand such that its supports reached through directly to the bedrock below the museum.

In 1963, the fourth major piece of the Cape York meteorite was discovered by Vagn F. Buchwald near Agpalilik. The Agpalilik meteorite, also known as the Man, weighs around 20 tons and currently resides in the Geological Museum of the University of Copenhagen, Denmark. Other smaller pieces have also been found, such as the 3 ton Savik I meteorite in 1911, the 48 kg Thule meteorite in 1955, the 7.8 kg Savik II in 1961, and the 250 kg Tunorput fragment in 1984.

References

  1. ^ T. A. Rickard (1941). "The Use of Meteoric Iron". The Journal of the Royal Anthropological Institute of Great Britain and Ireland. 71 (1/2): 55-66. {{cite journal}}: Cite has empty unknown parameter: |1= (help)
  2. ^ Buchwald, V F (1992). "On the Use of Iron by the Eskimos in Greenland". Materials Characterization. 29 (2): 139–176. {{cite journal}}: Cite has empty unknown parameter: |1= (help)