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  • 1 NCSR Demokritos Archaeometry Laborotory Aghia Paraskevi 15310 Attiki Greece
  • 2 British School at Athens Fitch Laboratory Souidias 52 10676 Athens Greece
  • 3 Aristotle University Laboratory of Analytical Chemistry 54006 Thessaloniki Greece
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INAA and ICPES are compared for their discriminative power in obsidian source characterisation. Geological samples from the Aegean and Carpathian sources were analysed for Na, Sc, Fe, Co, Rb, Sb, Cs, Ba, La, Ce, Sm, Eu, Tb, Yb, Lu, Hf, Ta, Th, U by INAA and for B, Na, Mg, Al, K, Ca, Sc, Ti, Mn, Fe, Zn, Y, Yr, Cs, Ba, La, Ce, Sm, Eu, Gd, Tb, Yb, Lu, Hf by two ICPES procedures. It is shown that all techniques work successfully, however, INAA is more efficient in the chemical discrimination of neighbouring sources.