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 and volcanoes occur in the same places because they both happen along the Ring of Fire. The Ring of Fire is located along the edges of a major tectonic... Earthquakes and volcanoes occur in the same places because they both happen along the Ring of Fire. The Ring of Fire is located along the edges of a major tectonic plate. Earthquakes are caused when tectonic plates shift and push over each other. The place where this happens is called a fault line.