Sphalerite mineral chemistry from Küre VMS shows analogy with VMS data elsewhere.
Microthermometry from the quartz mostly correlates with ranges from VMS deposits.
Re–Os dating of pyrites yield an upper Toarcian deposition age for the Küre VMS.
Younger pyrite model age and some low Th from quartz may suggest post-VMS events.
Data promotes the Küre Basin as a marginal back-arc basin of the Karakaya Ocean.