3-5 Billion years Earth 2

3-5 Billion years Earth 2 - when you cross the George...

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As Pangaea break-ups at the beginning of the Mesozoic, the ancestral Atlantic ocean begins to open up. The landmasses will continue to split and drift apart until they reach their modern geographic positions. The driving forces behind these changes to Earth’s surface are largely found within the interior. Processes like “slab pull” and “ridge push” accounted for the migration of the landmasses around the globe over millions of years. At present, these processes are pushing up mountain ranges such as the Himalayas and Andean mountains. And these processes are also causes the earthquakes in California and other areas adjacent to the Pacific ocean. We have a large number of rocks in our own backyard that provide insights in the break- up of Pangaea. These rocks are part of a the “Newark Supergroup” of rocks. The red rocks that you see all throughout Rutgers campus are called Newark Supergroup redbeds. Other rocks related to these redbeds are the basalts that form the Palisades that you see
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Unformatted text preview: when you cross the George Washington Bridge from Fort Lee New Jersey to Bronx New York. The basalts are volcanic rocks that were erupted when Pangaea split apart and molten rock erupted to Earth’s surface. The redbeds were for by water in lakes and rivers. The Newark Supergroup extends from as far south as the Carolinas to as far north as Nova Scotia. End of the Cretaceous sees the extinction of many forms of life, including the dinosaurs, which were the dominant during the Mesozoic. Evidence suggests that the Earth was impacted by an object from outer space. The Cenozoic Era is the third and final part of the Phanerozoic. It is the beginning of the modern world. The continents are aligning to their present geographic positions on the globe during the early part of the Cenozoic. Large ice sheets grew and melted in North America at least 10 times within the past 1,000,000 years. At least 2 glaciers, and at most 3, have left evidence in northern New Jersey....
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This note was uploaded on 01/21/2012 for the course GEOL 01:460:100 taught by Professor Christopherlepre during the Spring '12 term at Rutgers.

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3-5 Billion years Earth 2 - when you cross the George...

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