New radiolarian ages from the Troodos ophiolite and their tectonic implications

Soichi Osozawa, Makoto Okamura

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


Abstract Newly obtained radiolarian biostratigraphic age combined with previous isotopic age of the Troodos ophiolite shows that the ophiolite becomes systematically younger from east to west: Turonian, early Campanian, and late Campanian. The youngest late Campanian part of the ophiolite is directly covered by the volcaniclastic sediment derived from an active island arc, whereas the older part is covered by pelagic radiolarite. These facts constitute evidence that the Troodos ophiolite was probably emplaced during the subduction of an active spreading ridge.

Original languageEnglish
Pages (from-to)1-6
Number of pages6
JournalIsland Arc
Issue number1
Publication statusPublished - 1993 Mar


  • Troodos ophiolite
  • ridge subduction
  • sea floor spreading
  • trench‐trench‐ridge triple junction

ASJC Scopus subject areas

  • Geology


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