practical

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  • Created by: ra9718
  • Created on: 26-04-16 17:50

1. how are pillow lavas formed?

  • Formed by eruption of lava under water, the outside of each pillow shape cooled quickly. Each pillow cooled in layers.
  • Formou por erupção de lava sob a água , a parte externa de cada travesseiro forma resfriado rapidamente . Cada almofada arrefece em camadas.
  • Formada por la erupción de lava bajo el agua , el exterior de cada forma de almohada se enfría rápidamente. Cada almohada se enfría en capas .
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Other questions in this quiz

2. what is the relationship between viscosity and the extent of lava flow if temperatures are the only variable?

  • when lavas are hotter, they are less viscous, so they travel further; and when lavas are cooler, they are more viscous so they will travel further.
  • when lavas are hotter, they are less viscous, so they travel further; and when lavas are cooler, they are more viscous so they will travel less far.
  • when lavas are cooler, they are less viscous, so they travel further; and when lavas are hotter, they are more viscous so they will travel less far.

3. what is the texture of the pahoehoe?

  • rough
  • ropey
  • ropey and wrinkled surface
  • wrinkled surface

4. what is the form and shape of pillow lavas?

  • rectangular structures
  • pillow and bulbous shape(rounded structures)
  • bulbous shape(hexagonal structures)

5. where in the lava flow is the pahoehoe formed?

  • in the centre
  • in the edges
  • outside the lava flow

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