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Proposed by Nicolaus Steno in 1669, states that younger layes of rock or
soil were deposited on the top of older ones by wind or water
Ultramafic rocks
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contains less than 45% silica
,Mafic Rock
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dark-colored rocks that have low silica content and are rich in iron and
magnesium.
Plutons
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Blobs of magma that rose through layers of rock (lava lamp)
Covalent Bonding
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The sharing of electrons
Specific Gravity
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Density of an object relative to water. No units.
, Assimilation
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When magma rises, melts country rock, and changes the composition.
Batholith
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A mass of rock formed when a large body of magma cools inside the crust
Lithosphere
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The upper part of the mantle and the crust
Metallic Bonding
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