230Th/U chronology of ore formation within the Semyenov hydrothermal district (13 o 31’ N) at the Mid-Atlantic Ridge

V. Kuznetsov, F. Maksimov, A. Zheleznov, G. Cherkashov, V. Bel’tenev, L. Lazareva

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

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 ob-tained 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.
Original languageEnglish
Pages (from-to)72-76
JournalGeochronometria
Volume38
Issue number1
DOIs
StatePublished - 2011

Keywords

  • geochronology
  • Mid-Atlantic Ridge
  • hydrothermal vents
  • massive sulfides

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