If a substantial amount of calcium is discovered, coronary artery disease may be likely. A CT coronary angiogram, in which you receive a contrast dye injected intravenously during a CT scan, also can generate images of your heart arteries.
At converging plate boundaries, two situations are possible. First, both volcanoes and earthquakes form where one plate sinks under the other. This process, called subduction, takes place because one plate is denser than the other. The denser plate, which invariably has oceanic crust on its top, does the sinking. Second, only earthquakes occur when two plates collide (obduct), building a mountain range.
Earthquakes occur as a result of energy or the seismic waves of tectonic plates sliding against each other. So a place where these tectonic plates are not present, that place will not face an earthquake. It is said earthquakes don't occur in Britain. Written Dec 24, 2013 â¢ View Upvotes.