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Scientists discover the ‘missing link’ that causes giant volcanic eruptions

SCOTLAND, JUL 10 – Research confirms volcanic fissures shaped Scotland’s Inner Hebrides 60 million years ago, with activity rivaling modern Hawaii, settling a century-old geological debate.

  • Earlier this month, University of Aberdeen geologists confirmed Scotland’s volcanic landscape once rivalled Hawaii, formed by fissures 60 million years ago.
  • During the Atlantic Ocean’s formation 60 million years ago, rifting caused magma to erupt through fissures, shaping Scotland’s volcanic landscape, including the Inner Hebrides.
  • Fieldwork and 3D drone modelling uncovered a 5 km-long preserved fissure near Calgary Bay on Mull, described as “incredibly rare” by researchers from the University of Aberdeen.
  • A 2023 study in The Journal of the Geological Society confirms that Scotland’s Inner Hebrides formed from fissure eruptions 60 million years ago, ending a century-old debate.
  • Scottish geoscientists discovered 60-million-year-old volcanic fissures in the Inner Hebrides, confirming the landscape once rivalled Hawaii's eruptions, with potential lunar exploration applications.
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Scientists discover volcanoes that shaped Scotland’s islands

The west coast of Scotland was erupting with lava fountains and other volcanic events 60 million years ago.

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The Conversation broke the news in on Wednesday, July 9, 2025.
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