lead isotope analysis
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Author(s):  
Daria V. Kiseleva ◽  
Natalia G. Soloshenko ◽  
Tatyana G. Okuneva ◽  
Evgeny S. Shagalov ◽  
Vitaly V. Tkachev ◽  
...  

Author(s):  
S. W. Merkel ◽  
P. D'Imporzano ◽  
K. van Zuilen ◽  
J. Kershaw ◽  
G. R. Davies

Portable laser ablation is tested for Pb isotope analysis of silver, yielding results comparable to bulk analyses. This low impact method removes the need for invasive sampling, opening the way for analysis of archaeological silver worldwide.


2021 ◽  
Vol 13 (10) ◽  
Author(s):  
Michael Bode ◽  
Norbert Hanel ◽  
Peter Rothenhöfer

AbstractA shipwreck of the 3rd/2nd decade BC found near Comacchio (prov. Ferrara, Italy) in 1980 contained not only well-preserved technical equipment and commercial goods but also 102 Roman lead ingots. Since then, the origin of the ingots has been intensively discussed. Domergue et al. (2012) connected the epigraphic elements with lead isotope analyses and favored the southeastern Spanish lead ore mines being the source of the lead metal. An origin from the Balkan region (Illyricum) was favored by Dušanić (2008). Due to our investigations, both assumptions cannot be maintained. We present a new interpretation of the lead’s isotope signature which best match data of ore deposits from Chalkidiki, Thasos island, and Pangaion mountains in the northern Aegean region.


2021 ◽  
Vol 114 (3) ◽  
pp. 1161-1203
Author(s):  
Olga Karagiorgou ◽  
Stephen Merkel ◽  
Marcin Wołoszyn

Abstract This article presents the results of lead isotope analysis of ten Byzantine seals from the sigillographic collection of Robert Feind (Cologne). The report is preceded by an overview of pre-existing studies on lead use in the Byzantine Empire and a presentation of the investigated seals datable to the Early Byzantine (4 specimens), Middle Byzantine (5 specimens) and Late Byzantine period (1 specimen). Three seals are of imperial issue. The results of the analysis of lead are compared against the results of isotope analysis of other silver and lead artefacts from Late Antiquity and the Late Byzantine period. The isotop analysis leads to the following conclusions: (a) Many of the seals have isotope ratios consistent with Aegean-Bulgaria-Western Turkey sources; (b) Reused lead was also employed in the manufacture of seals; (c) There appear to be significant chronological and regional differences in the lead used for casting blanks in the eastern Mediterranean. The number of lead seals subjected here to analysis is admittedly too small for the results to be fully representative; still, they provide a starting point for more similar studies which will preferably include excavation finds with known and secure provenance.


Minerals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 667
Author(s):  
H. Kory Cooper ◽  
Antonio Simonetti

The Indigenous inhabitants of Arctic and Subarctic North America had been using native copper for several centuries prior to sustained interaction with Europeans beginning in the 18th century. The connection, if any, between the use of copper in these two adjacent regions is, at present, unclear. The ability to determine the source of native copper artifacts found in greater northwestern North America would inform on the movement of copper via trade and exchange between, and aid in understanding the innovation and diffusion of native copper metallurgy among, ancestral Dene and Inuit People. This paper provides the results of a Lead Isotope Analysis (LIA) pilot study examining Pb isotope ratios of native copper samples from multiple locations in the northern regions of North America. The results from this preliminary study indicate some overlap in Pb isotope ratios between Arctic and Subarctic sources of native copper, and these nonetheless record distinct isotope signatures relative to those associated with other North American native Cu deposits.


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