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Content available remote 230Th/U chronology of ore formation within the Semyenov hydrothermal district (13°31' n) at the Mid-Atlantic Ridge
Kuznetsov V., Maksimov F., Zheleznov A., Cherkashov G., Bel’tenev V., Lazareva L.
Geochronometria
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2011
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Vol. 38, no. 1
72-76
EN
A radiochemical study was carried out on massive sulfides from Semyenov hydrothermal district at the Mid-Atlantic Ridge. New and published results provide evidence that 230Th/U ages obtained for massive sulfides are reliable. The sulfide deposits from the West, North-West, North-East, and East hydrothermal sites at the Semyenov hydrothermal district were formed between ~124 ka and ~37 ka ago. The hydrothermal activity might have started in the eastern part of the district and moved to the west by episodic ore formation.
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