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Which ancient geologic era produced most of Sardinia’s rocks?
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Sardinia
Sardinia, Italy.
Most of the rocks found on the island of Sardinia originate from the Paleozoic Era, which spanned approximately 541 to 252 million years ago.1
The island is geologically characterized as a remnant of a Hercynian block. Within this structure, Cambrian Period slates are prevalent in the southwest, while Carbo-Permian granites make up more than one-third of the island's total landmass, particularly throughout the eastern highlands.1