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Search results for: Ian Alsop

Snowball earth proof in Scottish-irish rocks

Researchers have discovered evidence for an ancient glaciation in old Caledonian rocks - a previously undiscovered finding which indicates that the planet froze over during the 'Snowball Earth' period nearly 700 million years ago.

How did the earth move?

CAPTION: "Rocks forming the Scottish mainland may have moved hundreds of km towards the ancient crust of the Outer Hebrides to create a huge range of Caledonian Mountains 420 million years ago"

World experts study ancient Scottish rocks

PIC CAPTION: Sheared rocks from Arctic Greenland which had originally been buried ~30 km below the Earth's surface more than 1 billion years ago. CREDIT: Dr Ian Alsop, University of St Andrews