Three basic types of magma: 1  Mafic or Basaltic-- SiO2 45-55 wt%, high in Fe, Mg, Ca, low in K, Na. 2  Intermediate or Andesitic-- SiO2 55-65 wt%, intermediate. in Fe, Mg, Ca, Na, K. 3  Felsic or Rhyolitic-- SiO2 65-75%, low in Fe, Mg, Ca, high in K, Na.
intensity noun [U]. âº the âquality of being âextreme in âstrength or âforce: Simone âsings with âemotional intensity. The âlight âhit us with such intensity that we âducked. âº art Intensity in a âwork of âart âdescribes the âstrength of the âcolor, âsound, âlight, or âfeeling. (Definition of intensity from the Cambridge Academic Content Dictionary Â© Cambridge University Press).
exists and is an alternate of. Merge this question into. Split and merge into it. Answer by Crazyblondechic. Confidence votes 76. Intensity is the quality of being intense. In physics, it is the measurable amount of a property, such as force, brightness, or a magnetic field. In Earth science, the amount of damage caused by an earthquake. it can also mean the amount of energy that a wave carries past a certain area each second.