Researchers at Monash University in Melbourne, Australia, have found a subduction zone off the shore of Spain, west of Gibraltar. A subduction zone occurs when one of Earth's tectonic plates goes beneath another. Continents draw closer to one another as the crust disappears. "Identification and understanding of such processes may provide new insights on how subduction zones may have initiated in the past and how oceans start to close," said researcher João Duarte.
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