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6.8 kg. Iron, IVA TKW 26 metric tons. Fall not observed. Found 1836 in Great Namaqualand, Namibia. The fragments of the meteorite in the strewn field are dispersed over an elliptical area 275 km long and 100 km wide. and . Marco writes:Jason Utas wrote to me and stated: Buchwald studied the corrosion of iron meteorites -- he examined how the thickness of heat-altered iron varied at the edge of irons that had been weathered to different extents, and drew his conclusions from that as well as other observations. As irons weather in arid to semi-arid environments, regmaglypts become enlarged and their edges become thinner and sharper. Gibeon is one of the best examples of this because of the extreme aridity of the region. Chilean irons are supposedly different due to the stronger (onshore) winds, although I believe the fact that many of these appear to have remained right on the surface for up to millions of years has caused them to weather differently for different reasons -- many Antarctic irons show similar pitting from extended dry exposure. Check out my Web Site
Jason Utas wrote to me and stated: Buchwald studied the corrosion of iron meteorites -- he examined how the thickness of heat-altered iron varied at the edge of irons that had been weathered to different extents, and drew his conclusions from that as well as other observations. As irons weather in arid to semi-arid environments, regmaglypts become enlarged and their edges become thinner and sharper. Gibeon is one of the best examples of this because of the extreme aridity of the region. Chilean irons are supposedly different due to the stronger (onshore) winds, although I believe the fact that many of these appear to have remained right on the surface for up to millions of years has caused them to weather differently for different reasons -- many Antarctic irons show similar pitting from extended dry exposure.
Buchwald studied the corrosion of iron meteorites -- he examined how the thickness of heat-altered iron varied at the edge of irons that had been weathered to different extents, and drew his conclusions from that as well as other observations. As irons weather in arid to semi-arid environments, regmaglypts become enlarged and their edges become thinner and sharper. Gibeon is one of the best examples of this because of the extreme aridity of the region. Chilean irons are supposedly different due to the stronger (onshore) winds, although I believe the fact that many of these appear to have remained right on the surface for up to millions of years has caused them to weather differently for different reasons -- many Antarctic irons show similar pitting from extended dry exposure.
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