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Interdisciplinary Study of the Stone Mould for Double Axe from Ada Tepe

Interdisciplinary Study of the Stone Mould for Double Axe from Ada Tepe. PETIA PENKOVA Laboratory for Analysis, Conservation and Restoration, National Institute of Archaeology with Museum Bulgarian Academy of Sciences, Sofia, Bulgaria.

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Interdisciplinary Study of the Stone Mould for Double Axe from Ada Tepe

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  1. Interdisciplinary Study of the Stone Mould for Double Axe from Ada Tepe PETIA PENKOVA Laboratory for Analysis, Conservation and Restoration, National Institute of Archaeology with Museum Bulgarian Academy of Sciences, Sofia, Bulgaria

  2. Three Types Double Axes from the Territory of Bulgaria During the Late Bronze Age

  3. THRAKIEN Axes Moulds

  4. The Mould from Ada Tepe

  5. The Mould from Breznik (after Chernih 1978)

  6. Moulds form Early Bronze Age

  7. Moulds From Middle and Late Bronze Age

  8. Summary of Metals and Moulds Techniques Used in the Copper and BronzeAges Period. Moulding Material Metal Copper Age Stone Cu (1850-1650 B.C.) Cu/As Early Bronze Age Stone Cu/Sn (1650-1400 B.C.) (Cu/As) Middle Bronze Age Stone Cu/Sn (1400-850 B.C.) (Some Bronze and clay) Late Bronze Age Clay Cu/Sn/Pb (850-400 B.C.) (Some stone and bronzes) (after Tylecote 1962)

  9. The investigations of E. Chernih Chemical groups Bi Ag Sn As Ni Co X ≥ 0,002 0,003-0,5 0,01-3 0,03-2 0,01-1 0,03-0,2 XI ≤ 0,002 0,0001-0,03 0,005-20,01-3 0,03-1 0,003-0,2 XII ≤ 0,001 0-0,001 0-0,05 ≤0,3 ≤ 0,03 ≤ 0,01 Analysis on double axes from Late Bronze Age Cu Sn Pb Zn Bi Ag Sb As Fe Ni Co Mn Au Axe from Semerdjievo base 2 0,005 - ? 0,0001 0,004 0,1 0,05 0,006 0,004 - - Axe from Kalugerovo base 3,5 0,012 - - 0,0005 0,005 0,2 0,02 0,017 0,006 0,02 0,001 Axe from Kirkovo base 0,07 0,05 - - 0,0005 0,018 0,8 0,4 0,09 - 0,01 ? (after Chernih 1978)

  10. Analysis of the crucible from Mucking

  11. Analysis of the crucible from Mucking Reaction Free Energy kJ/moleO2) 4Cu + O2 → 2Cu2O 136 2Cu + O2 → 2CuO 65.3 2Pb + O2 → 2PbO 183 Sn + O2 → SnO2 293 Free energies for formation of oxides (from Reed 1971). metal Vapour pressure (mm Hg) lead 4.91 copper 3.5 x 10-4 tin 8.7 x 10-4 Vapour pressure for different metallic elements at 1000º C (after Brandes 1983).

  12. X-Ray Image of the Mould from Ada Tepe

  13. The Mould from Breznik

  14. The Results of the Analysis Results from the EDXRF analysis on the mould from Ada Tepe Results from the EDXRF analysis on the mould from Ada Tepe

  15. Comparative Diagram of the Results from the Moulds of Ada Tepe and Breznik

  16. References I. Panayotov. 1980. Bronze Rapiers, Swords and Double Axes from Bulgaria. – Thracia, V, 173-198. Е. R. Tylecote. 1962. Metallurgy in Archaeology. London. Черных. 1978. Горное дело и металлургия в древнейшей Болгарии. София. D. Dungworth. 2000. A Note on the Analysis of Crusibles and moulds. – Historical Metallurgy, 34 (2), 83-86. Barnes I nd. The analysis and Recreation of Bronze and Brass Mould Residues. - The Laboratory of the National Museum of Antiquities of Scotland 2, 40-44 J. Bayley. 1989. Non-metallic evidences for metalworking. – Archaeometry. Proceedings of the 25 nd International Symposium, 293-303 (Amsterdam)

  17. Thank you for your attention

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