Saturday, 7th September 2013, Lavrion, Greece
In the theatre of Thorikos above the mine at
Velatouri hill.
The theatre of Thorikos is one of the most
ancient theatres in Greece.
Thorikos place constitutes a unique ancient mining centre worldwide; the
first underground excavations began around 3000 BC, a fact that
establishes Thorikos mines among the oldest in Europe.
Mining provided silver containing lead sulfide or argentiferous galena.
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On
the sulfidic metallourgical processing wastes of Komobil, with the
characteristic yellow colour during the summer. Behind is the golf of
Thorikos.
These
tailings have been produced between 1953 and 1963 and are characterised
by high levels of Ag, As, Bi, Co, Fe, K, S, Sb, Sn and V, being weathered
to a variable extent. In the winter the colour turns red purple,
especially after raining.
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