Lava flows are typically finer grained than intrusive igneous rocks. why?

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60) Lava flows are typically finer grained than intrusive Igneous rocks. Why? A) Intrusive magma is cooler because it is well

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Answer

60) c, the extrusive magma cools so quickly so the mineral
grains don’t have time to grow.

61) granite

In granite we can find visible grains. Rhyolite is the volcanic
equivalent of granite where we find the same composition but the
grains are so fine grained that can’t be visible.

63) Diorite

65) Andesite

66) A, high viscosity and dissolved gases

67) c, Pacific


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