GEOG 1120 Lecture Notes - Lecture 3: Himalayas, World War I, Continental Crust
Document Summary
First map creator is named abraham ortelius. Similar rocks/mountain across land-masses (continents line up like a puzzle). Fossils across several land-masses => two land fossils, a swimmer and a plant (pieces of evidence). Giant landmass of all continent = pajima. Reaction: people did not believe his theory because he got no mechanism (facts/evidence) of what causes the plates to move. Plate tectonics move up and down and not sideways. => explaining the data: fossils across several land- masses. => reasons: data could be argued by looking at the swimmer and a plant fossil history. => the use of nuclear and submarine - they were mapping the ocean floor for strategy in war. => found patterns created by magnetic stripes along the. => they also found the trench ridge (much larger) where they are pulling apart. => far away from the ridge - rocks are older and colder. => huge earthquake in alaska in 1964 - crucial to explaining plate tectonics.
