| Abstract: |
English summary on page 59 as follows: From the results of the spectrographic analysis of 44 bronze samples from Dong Dau and Go Mun and similar cultures, the author comes to conclusions: 1-- Dominant alloy of bronze aetifacts in Dong Dau and Go Mun cultures is Cu-Sn (79,5%) - 81,8% in Dong Dau culture and 72,7% in Go Mun culture. 2-- Alloy of copper with lead has not found yet in these cultures but alloys of Cu-Sn
Cu-Sn-Sb and Cu-As. 3-- The collection of 44 bronze samples might divided into 3 chemical groups, showingshowing at least 3 sources of materials. 4-- From phung nguyen to Dong Dau, there might possibly be a sudden change in metallurgy.
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