OCS 1005 Chapter : OCS Homework 2
15 Mar 2019
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Last name: degeneres first name: rebecca email: rdegn1@lsu. edu. Question 1: locations of hot spots remain fixed for a long time. As plates move across such hot spots, they form chains of volcanoes. The hawaiian islands are an example of such an island chain formed over a hot spot. Volcanoes on the island of hawaii are still active. The age of the extinct volcano, located 4,000 km away from the hawaiian islands, is 40 million years old. Answer: the rate of movement of the pacific plate is . 0001 km/year. So, it moves . 0001 km in a year. To get this answer, the distance (4,000km) is divided by the time (40 million years) to determine the speed of movement. Question 2: magnetic anomaly stripes run parallel and are symmetrically arranged on both sides of the midocean ridge axis.
