Aug 17, 2010, 02:28 PM
The following meteorites are known from Alaska. They're name is followed by the approximate size, and the approximate date of impact or date found. Each entry is separated by a semi-colon (:
Avak (about 30 km east of Barrow, Alaska), 12 km (kilometers), 600 million years ago (mya); Chilkoot, 43 kg., circa 1881; Cold Bay, 320 grams, 1921; Aggie Creek, 43 kg., 1942; Hope Creek, 9.83 kg., 1998.
The Meteoritical Society is the source for this information.
Alaska contains 586412 square miles, so should have at least that many 8 oz. or larger meteorites. Only 5 are currently known, so much possibility here. The Avak crater is especially interesting, in that the original mass was estimated to be 12 km (9+ miles) in diameter. By comparison, the Canyon Diablo meteorite, aka Meteorite Crater in Arizona, was created by a mass perhaps 1/2 km in diameter. Thousands of fragments from the Canyon Diablo are known, but no specimens have been found on the Adak crater that I am aware of. Should be a happy detecting ground for at last 50 km away from the crater site, with larger residual meteoritic fragments probably falling close by the rim of the crater.
Aug 17, 2010 02:28 PM