It is also said that he thought that the rectangular chambers looked like the cells in some monasteries. Physically cells always have a boundary membrane, a little like a polythene bag encloses contents within it. Inside the space limited by the membrane there is an remarkable chemical processing unit.
Iceland is a place where, because of large amounts of lava extrusion, the ocean floor is, in effect, above sea level, making it easy to study ocean floor spreading. You can affix strain gauges on many parts of the spreading ridge. 6 people found this useful.
Over time, these gaps allow molten rock from underground to surface as lava, creating Iceland's many volcanoes. There are many places on earth where two continental plates drift apart, but most of these sites are deep under water.