What types of rocks would be most common in the small volcano in this photograph?

Question

Quizplus · Accepted Answer

The small size of the volcano and the presence of a single vent suggest that the eruption was likely effusive rather than explosive. This type of eruption typically produces lava flows and scoria cones, which are made up of small volcanic fragments ejected from the vent. Scoria is a type of vesicular basalt formed from the rapid cooling of gas-rich lava. Therefore, A) is the most likely type of rock to be found in this small volcano.

What Types of Rocks Would Be Most Common in the Small