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Tag Archives: Pangaea

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Reconstructing the Past & Causes of Plate Movement

ScienceBy William Anderson (Schoolworkhelper Editorial Team)September 24, 2010Leave a comment

Causes of Plate Movement -Remember that the lithosphere (crust + upper mantle) is solid and is floating on the asthenosphere (melted rock in the mantle below the lithosphere). 1.  Heat from the Earth’s core is transferred throughout the mantle. 2.  Magma that is hotter and less dense rises upward at a mid-ocean ridge. 3.  Once…

A Plate Tectonics Flip Book Answers

ScienceBy William Anderson (Schoolworkhelper Editorial Team)June 23, 2010Leave a comment

Around 190 million years ago, Pangaea began to break up. The breakup resulted in two landmasses: Laurasia, the northern group of continents, and Gondwanaland, the southern group of continents; Gondwanaland included South America, Antarctica, Australia, Africa, and India. Breakups! North America: 130 mya Australia: 50 mya India: 90 mya Europe: 30 mya Antarctica: 50 mya…

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