On the bottom of the ocean a giant 60,000 km long crack is opening in the seafloor, which wraps around our planet like the seam on a baseball. As the crack opens, new seafloor is made as lava oozes up to fill the gap. The crack is called a rift and the constant filling of the widening crack is called seafloor spreading. Our study of the Lost City takes place near a rift in the mountains of the mid-ocean ridge, just about in the middle of the Atlantic Ocean…
