EESA06H3 Lecture : Lec 05.doc
Document Summary
Steep sided volcanoes: these magma have silicon in them, stiffness, gases can"t come out and lots of stuff are blown up in the air, so we found pyroclastic (fire break) so the volcanoes produce ash. Merapi volcano: the most active volcano in indonesia: the arc that is formed is made up of made and joined volcanoes some are dead and some active. Laha: remobilization, reworking of ash by heavy rain its dangerous. Active volcanoes: cracks, and sulfur gas more sulfur is released when its closer to an eruption. Collapse of volcanoes: consists of hot gas and large bolders and pyroclastic flow. Mel fugi: the volcanoes: the frequency: dangerous but there hasn"t been any eruption yet. Strike slip fault: rocks are moving past each other: the vertical and horizontal sense : the focus, where all the energy is produced, then the gray rocks: you see other fault traces as well and other ancient earthquakes.
