Geology Chapter 2.2 0.0 / 5 ? Geologyigneous rocks A2/A-levelOCR Created by: abbbywCreated on: 26-12-17 14:26 68354217 Across 1. a textural term for a rock containing vesicles. Vesicles were bubbles of gas which came out of solution as a result of pressure release (9) 5. formed by friction as the magma or lava slows down near an interface, aligning the minerals as it moves (4, 7) 6. a texture where large crystals (phenocrysts) are completely surrounded by smaller crystals (11) 7. where there are large vesicles that have been filled with a secondary mineral (12) Down 2. molten rock that cools at the surface (4) 3. a fracture which results in a curved surface (10) 4. when crystals in an igneous rock are of approximately the same size (12) 8. sections of earth's oceanic crust that have been tectonically moved (obducted) onto continental crust (10)
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