1. Black smokers and mid-ocean ridge basalt are examples of submarine volcanic activity. 2. Oceanic basalts in the vicinity of mid-ocean ridges typically exhibit sub-greenschist alteration. 3. Geography and mid ocean ridges , contributed greatly to the theory of plate tectonics. 4. The western boundary is another mid-ocean ridge , the East Pacific Rise. 5. There were a total of 130 " under-votes " in Ocean Ridge Tuesday. 6. Balasco did not return messages left at his office and Ocean Ridge home. 7. These processes are well understood at mid-ocean ridges , where most of Earth's volcanism occurs. 8. That won't be a factor in Ocean Ridge 's one-page ballot. 9. Ocean Ridge won't have a lap top, however, since it's the only election Tuesday.10. New plate material is ejected volcanically at long mid-ocean ridges .