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Early Geology

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Across
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a sudden release of energy in the earth's crust or upper mantle
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hot molten rock, usually formed in the earth's upper mantle
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to move apart
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seven great land masses on the globe
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continents moved slowly to their current location
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hot, less dense material below Earth's crust rises toward the surface at the mid-ocean ridge
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move on a plastic like layer of the mantle
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to move apart
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Group of underwater mountain chains criss-crossing the oceans.
Down
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all land
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wrote The Origin of Contenents and Oceans
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Earth's crust and part of the upper mantle are broken into sections
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The outer layer of Earth
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current in Earth's mantle that transfers heat in earths interior and is the driving force for plate tectonics
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portion of the Earth's crust that lies beneath the ocean floor
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where plates move together
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to convert or change
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Extremely deep elongated depression bordering a continent or island
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the movement of sediment
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These can be found in rocks and show where animals died millions of years ago.