volcanic [vɔl'kænik]

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adj. ��ɽ�ģ����ҵģ���ͻȻ������
n. ��ɽ��

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1. Basalt is the commonest volcanic rock.
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2. Smaller earthquakes can also be caused by volcanic activity, landslides, mine blasts, and nuclear tests.
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3. Iceland is peculiarly volcanic because it is formed by the intersection of a hotspot and a mid-ocean ridge.
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adj.
  1. relating to or produced by or consisting of volcanoes
  2. explosively unstable
  3. igneous rock produced by eruption and solidified on or near the earth's surface; rhyolite or andesit

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volcanic
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volcanic rock
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volcanic ash
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volcanic breccia
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volcanic soil
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