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Which type of basaltic lava flow has a fairly smooth, unfragmented, ropy surface?

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Question: Which type of basaltic lava flow has a fairly smooth, unfragmented, ropy surface?

Options:

  1.  aa
  2.  pegmatitic
  3.  pahoehoe
  4.  scoria

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3. pahoehoe

Pahoehoe type of basaltic lava flow has a fairly smooth, unfragmented, ropy surface.

Pahoehoe

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