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.
The type of earthquakes usually depends on the area where is occurs and the type of land in the region. The most common earthquakes are Tectonic.. They occur when the rocks in the Earth crust break or crack because the lands forces made up by the movement of tectonic plates.Another type is called Volcanic earthquakes.he type of earthquakes usually depends on the area where is occurs and the type of land in the region. The most common earthquakes are Tectonic.. They occur when the rocks in the Earth crust break or crack because the lands forces made up by the movement of tectonic plates.