Geology Chapter 2.2

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  • Created by: abbbyw
  • Created on: 26-12-17 14:26
Flow Banding
formed by friction as the magma or lava slows down near an interface, aligning the minerals as it moves
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Conchoidal
a fracture which results in a curved surface
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Vesicular
a textural term for a rock containing vesicles. Vesicles were bubbles of gas which came out of solution as a result of pressure release
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Porphyritic
a texture where large crystals (phenocrysts) are completely surrounded by smaller crystals
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Equigranular
when crystals in an igneous rock are of approximately the same size
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Amygdaloidal
where there are large vesicles that have been filled with a secondary mineral
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Lava
molten rock that cools at the surface
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Ophiolites
sections of earth's oceanic crust that have been tectonically moved (obducted) onto continental crust
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Other cards in this set

Card 2

Front

a fracture which results in a curved surface

Back

Conchoidal

Card 3

Front

a textural term for a rock containing vesicles. Vesicles were bubbles of gas which came out of solution as a result of pressure release

Back

Preview of the back of card 3

Card 4

Front

a texture where large crystals (phenocrysts) are completely surrounded by smaller crystals

Back

Preview of the back of card 4

Card 5

Front

when crystals in an igneous rock are of approximately the same size

Back

Preview of the back of card 5
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