Discovery of the Azerbaijan Continental Magmatic Arc

Why in News?

Recently, an international research team led by Istanbul Technical University (ITU) published a study, discovering remnants of a previously unrecognized 100-million-year-old continental magmatic arc in northwestern Iran.

• Named as - Azerbaijan Continental Magmatic Arc.
• This long-lost volcanic system dates back to the Late Cretaceous period (101 to 97 million years ago).
• It fills a critical missing link in the tectonic closure of the ancient Neo-Tethys Ocean.

Key Research Discoveries

Strategic Significance

• Solving a Tectonic Puzzle
  • Traditional reconstructions of Iran’s magmatic evolution focused almost exclusively on two major structures
    • The Sananda-Sirjan Magmatic Arc and
    • The Urumieh-Dokhtar Magmatic Arc (UDMA).
  • Discovering this distinct Late Cretaceous system in northwestern Iran resolves a long-standing spatial and temporal gap in the magmatic arc history of the Neo-Tethyan belt.
• Reconstructing Ocean Basin Closures
  • The Arc offers critical evidence regarding plate velocity shifts, subduction rollbacks, and the step-by-step assembly of modern Eurasia from the Eastern Mediterranean across to Western Asia.

Reference

Science Daily | 100-million-year-old volcanic system