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Iron Meteorites: Origin, Classification, Pictures - Geology.com
IAB, coarse octahedrite. About 25,000 years ago a building-sized iron meteorite crashed into the desert between the present-day towns of Flagstaff and Winslow in northern Arizona. The size and inertia of the impactor resulted in a massive explosion which excavated a crater almost 600 feet deep and 4,000 feet in diameter.
Iron Meteorites: Composition, Age, and Origin
Iron meteorites account for only 4–5% of meteorite falls (Buchwald, 1975; Krot et al., 2014) but are more abundant among finds in certain areas, for example, around terrestrial impact craters <1 km in diameter (Buchwald, 1975) and on Mars (e.g., Ashley et al., 2012).The 12 largest individual meteorites each weigh 10 to 60 tons and are all irons (Meteoritical Bulletin Database).
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