'Oceanic ridges' diaporamas de présentation

Plate Tectonics

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The Changing Earth

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Igneous Rocks: Born of Fire

Igneous Rocks: Born of Fire. General characteristics of magma. Igneous rocks form as molten rock cools and solidifies ( Ignis = fire) General characteristics of magma Parent material of igneous rocks Forms from partial melting of rocks Magma at surface is called lava.

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Warm Up

Warm Up. After a volcanic eruption has covered an area with lava, which of the following is the most likely order of succession in the repopulation of the area? lichens ?grasses ?shrubs ?trees mosses ?grasses ?lichens ?trees grasses ?trees ?mosses ?lichens

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Plate Tectonics

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Geological Oceanography

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From the Continental Drift to the theory of Plate Tectonics

From the Continental Drift to the theory of Plate Tectonics. A global theory of the evolution of the Earth Chemistry teacher : Fonti Nunziata; English Teacher: Cocivera Maria Pia. Fixism theories - These theories were in the last years of the XVIII century.

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17.3 & 17.4 Notes Continental Drift

17.3 & 17.4 Notes Continental Drift. Main Points: The theory published by W egner states that the continents were once all connected and they continually drifted apart. Pangaea.

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RIDGES (CHAPTER 7)

RIDGES (CHAPTER 7). Harald Brekke. Categories of ridges in article 76. Oceanic ridges of the deep ocean floor (paragr. 3) excluded from the continental margin Submarine ridges (paragraph 6) maximum limit of 350 nautical miles for continental shelf limit

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