Question

Which lava flows are faster, pahoehoe lavas, or a'a' lavas?

a) Pahoehoe are faster
b) a'a' are faster

Answer 1

Pahoehoe lavas are typically faster in flow than a'a' lavas, mainly because they are hotter and less viscous, allowing them to travel more smoothly and quickly.

Step-by-step explanation:

When comparing pahoehoe and a'a' lavas, one of the notable differences is their speed of flow.

Pahoehoe lavas are generally faster than a'a' lavas. Pahoehoe lava is characterized by its smooth, ropy appearance, and it typically flows more quickly because it retains heat longer and has a lower viscosity.

In contrast, a'a' lava is rough, broken, and cooler, which makes it thicker and slower as it flows.