"56788648"^^ . . . . . "Overlapping spreading centers"@en . . . . . "Overlapping spreading centers are a feature of spreading centers at mid-ocean ridges."@en . . . "1060935846"^^ . "Overlapping spreading centers are a feature of spreading centers at mid-ocean ridges."@en . . . . . . . . . . . . . "5468"^^ .