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Marbles of Mesozoic age, metamorphosed and deformed at amphibolite grade. At this location quarries date from Roman times, and the tool marks (curves) are still visible in the weathered quarry walls. PhotoID100

Marbles of Mesozoic age, metamorphosed and deformed at amphibolite grade. At this location quarries date from Roman times, and the tool marks (curves) are still visible in the weathered quarry walls. PhotoID100

Photograph: