FACOG stands for âFellow, American College of Obstetricians and Gynecologists.â ACOG is the nationâs leading group of professionals providing health care for women. For more information, go to the American College of Obstetricians and Gynecologists.
Age of oceanic crust; youngest (red) is along spreading centers. Seafloor spreading is a process that occurs at mid-ocean ridges, where new oceanic crust is formed through volcanic activity and then gradually moves away from the ridge.Seafloor spreading helps explain continental drift in the theory of plate tectonics.he destruction of oceanic crust occurs at subduction zones where oceanic crust is forced under either continental crust or oceanic crust. Today, the Atlantic basin is actively spreading at the Mid-Atlantic Ridge. Only a small portion of the oceanic crust produced in the Atlantic is subducted.
Image Credit: Main Image: Sea-floor spreading is the process in which the ocean floor is extended when two plates move apart. Plates are huge slabs into which the crust as well as the upper part of the mantle (the intermediate zones between the Earthâs crust and core) is divided.mage Credit: Main Image: Sea-floor spreading is the process in which the ocean floor is extended when two plates move apart. Plates are huge slabs into which the crust as well as the upper part of the mantle (the intermediate zones between the Earthâs crust and core) is divided.