| 11. | The soils are developed on undifferentiated tertiary volcanic and basic igneous rocks.
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| 12. | Kimberlites are a class of igneous rocks commonly associated with diamond mining.
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| 13. | Subsequently, the name was given to any igneous rocks with large crystals.
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| 14. | You are clearly of little expertise regarding the matter of ancient Igneous rocks.
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| 15. | These igneous rocks were once part of a proto-Andean magmatic belt.
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| 16. | This classification is based essentially on the mineralogical constitution of the igneous rocks.
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| 17. | A similar situation with igneous rocks occurs when xenoliths are found.
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| 18. | These igneous rocks of the Labrador Trough cover an area of.
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| 19. | When it has stopped moving, lava solidifies to form igneous rock.
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| 20. | Labradorite is the principal component of the igneous rock type anorthosite.
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