EESA06H3 Lecture Notes - Mid-Ocean Ridge, Shield Volcano, Types Of Volcanic Eruptions
16 Feb 2012
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Look at figure 2. 1 from the text. Vancouver sits on the west margin of the north american plate. Next big earthquake will occur on cascadia subduction zone: cascadia subduction zone - the atlantic plate is being driven below. East margin of the north american plate is not found in the east coast. Passive margin of the north american plate is along the middle of the atlantic ocean (iceland) Where the plate is being created, new material being added all the time, pushing the rest of the plate to the west. Passive margins aren"t really passive because of frequent earthquakes. Active plate margin is found on the eurasian plate in the mediterranean. The alps major active plate boundary marked by high mountains. The mediterranean is a much remnant ocean that laid between africa and. This map is from the 70s and showed that the ocean basins are not flat.
