five of them are divided by the oceans that surround them. In 1912 Alfred Wegner (1880-1930)‚ came up with a theory called the continental drift; stating that over three hundred years ago all seven continents were once one super continent called Pangaea. Wegner tried to convince other scientists and geologist for many years that the continents drifted apart; however he didn’t have the geological mechanism that was needed to validate his theory. Throughout his search he did find a paleontological
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Pumas The Parts were convectional current moves towards the surface are called plumes. Plumes bring magma to the earth surface. If magma breaks through the crust it erupts as lava in a volcano. Pangaea The continents were once all joined together which formed a super continent called Pangaea. We know this as identical fossils and rocks have been found in western Africa and Eastern South America. Today the lithosphere is split into 15 tectonic plates. Where 2 plates meet together = plate
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new friends in grave danger. Three elements that made this book so interesting are the setting‚ characters‚ and the conflict. The setting takes place in two areas: the volcanic island and the rainforest. Both places are on a landmass similar to Pangaea called Pyrrhia. The island is near the northern tip‚ near the Ice Kingdom and the Kingdom of the Sky‚ while the Rainforest Kingdom is in the south‚ near the Kingdom of the
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How did the ancient oceans change to become what we now see today? It is a popular opinion that the World was once a supercontinent called “Pangaea”. At this time there was only one ocean called “Panthalassa”. The pieces of the supercontinent were giant plates that fit together like a jigsaw puzzle. Through years and years of continental drift‚ the giant jigsaw pieces became the continents of the world we know today. The splitting apart of the continents gave way to new oceans. The continents
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heats the magma‚ causing it to rise‚ cool and fall back down. This circular motion causes the plates‚ which float on the mantle‚ to move. In 1912‚ Alfred Wegener‚ was the first man to state that the continents were once joined in a continent called Pangaea‚ but he couldn’t explain why and what happened to cause the plates to move apart so at the time the theory wasn’t believed. He based his theory on the fit of the South American and African continent coastlines. Notably the eastern edge of South America
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understanding of earthquakes. How the Earth stores strain and releases stress along earthquake faults The earth’s lithosphere is constantly moving. As you may know‚ the modern day continents were once merged together as one continent called Pangaea. Slowly‚ fracturing pieces moved apart. Even today‚ the lithosphere is constantly moving. It is estimated that the continents today‚ move about an inch a year. Reid’s Elastic Rebound Theory proves “if a stretched rubber band is broken or cut‚
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environment. The Australian environment also has relative geological stability. The last volcanoes were active many years ago‚ and the last of the glaciers shrank and melted many years ago. We only had volcanoes and glaciers because of the separation of Pangaea therefore making the Continental Drift Theory. There is little geological activity to create or refresh fertile soils. The majority of Australia is very old rock therefore means that we have very poor soils and recently alluvial soils which also have
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Geo Notes The Rock Cycle Transforming Rocks * The continental renewal of the surface if the earth * The ‘cycle’ transform in 3 ways * Erosion * Ice * Water * Wind * Heat * Pressure * Sediment Igneous Metamorphic Sedimentary Magma/Lava Erosion Erosion Pressure Erosion Pressure Heat Cool Sediment Igneous Metamorphic Sedimentary Magma/Lava Erosion Erosion Pressure Erosion Pressure Heat Cool Rock material evolves
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the spatial pattern of crustal age‚ as shown in this map (these maps)‚ support the Plate Tectonics Theory? Yes it does. I can see that the oldest parts of the ocean’s crust occur along continents that would have been pieced together to make Pangaea. Specifically‚ the crust is similar in age along the South America Plate and the African Plate. This supports that they were once
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consisted of South America‚ Africa‚ Madagascar‚ India‚ Antarctica‚ Australia‚ New Zealand and New Guinea. Continental margin: zone between the ocean basin of the continent Continental shelf: area underwater from the shore to the continental margin Pangaea split into 2 around 150 million years ago Position of mid-ocean ridges Mid ocean ridge forms due to sea floor spreading‚ in which the rocks become older the further one moves away from ridge volcanic activity occurs Magma wells to the
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