Contents of 12.3 What is the evidence that plates move apart at divergent plate boundaries?

12.3 What is the evidence that plates move apart at divergent plate boundaries?

Drawing showing normal faults scarps, recently erupted basalt lava flows and hydrothermal vents

Fig 12.11

Geologist's sketch of the seafloor along the mid-Atlantic ridge east of Florida. Normal faults form escarpments several hundred meters high.