1985
DOI: 10.1111/j.1475-4754.1985.tb00344.x
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Medieval Copper Alloy Production and West African Bronze Analyses ‐ Part I

Abstract: The uses made of analyses of copper alloys from West Africa are critically discussed in relation to the techniques by which metal was produced in contemporary Europe and Islamic lands. The conclusions of this study are that it is likely to be very difficult to provenance the metal source, or date the artifact by composition except in the rare case of high zinc brasses. Some analyses of European copper alloys, manillas and further samples from Igbu‐Ukwu are given.

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Cited by 58 publications
(30 citation statements)
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“…9). Second, there is a weak correlation between Fe and Zn (a linear factor of 0.05 between Fe and Zn with a correlation coefficient of 0.7), as frequently observed for zinc ores (see the discussion and references in Craddock, 1985), although once again the correlation remains poor (Fig. 9).…”
Section: Impuritiesmentioning
confidence: 84%
“…9). Second, there is a weak correlation between Fe and Zn (a linear factor of 0.05 between Fe and Zn with a correlation coefficient of 0.7), as frequently observed for zinc ores (see the discussion and references in Craddock, 1985), although once again the correlation remains poor (Fig. 9).…”
Section: Impuritiesmentioning
confidence: 84%
“…Such practices seem to have been followed for a long time, creating confusion where trace elements might have yielded valuable comparative data, and shed light on sources of raw materials. Nonetheless, a few “late” heads, for example, are yielding earlier dates than might be expected, and a few “early” heads, later dates (Craddock and Picton 1986; Dark 1975; Fagg 1963; Kecskesi 1988; Tunis 1981, 1983).…”
Section: Benin Queens and Queen Mothersmentioning
confidence: 94%
“…It is, however, by no means certain that the stylistic classification is entirely correct. Accumulating hard evidence, and thermolumi‐nescence tests on some bronzes, so far, indicate dating of Benin pieces is more complicated than the accepted chronology suggests (Craddock and Picton 1986). Furthermore, the virtual absence of ongoing and intensive archaeology in Benin provides scant context for chronology Suitable samples from existing pieces are also scarce because, early on, European conservators cleaned, repaired, and resurfaced many Benin bronzes.…”
Section: Benin Queens and Queen Mothersmentioning
confidence: 99%
“…Recently, it has been claimed that the plate was a joke (Maclay 2003). Other museum objects in brass have also been identified as modern by their Zn content (Craddock 1985; Al‐Saa'd 2000). More difficult to authenticate, the Metropolitan Museum Greek bronze horse was submitted to analysis (Lefferts et al 1981), including TL dating of the ceramic core material (Zimmerman et al 1974).…”
Section: Wonder Versus Archaeometrymentioning
confidence: 99%