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Early Geology

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