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Iron

Submitted by curator on Wed, 10/14/2015 - 21:54

Scatterplot for Iron, (ED I v. ED III/Akk)

B17478, Chisel
As, 2.4%; Sn, <0.010%; Fe, 0.84%

The Fe-content of Ur copper-based artifacts is generally quite low (i.e., of less than 0.9%). Most likely its presence is in part a measure of the density of silicate inclusions in the metal, some of those inclusions being remnants of slag picked up during the original smelting of the copper ore.

ED I range: 0.020%–0.84% (n=48)
Mean: 0.19% ± 0.02% (1 standard error)
Highest Fe-level: Chisel (inv. B17478)

ED III/Akk range: <0.023%–0.41% (n=36)
Mean: 0.18% ± 0.017% (1 standard error)
Highest Fe-level: Rod fragment (inv. B17317)