Question

Which of the following is typically associated with rhyolitic magma?

1) pillow lava
2) lava tubes
3) pahoehoe flow
4) block lava
5) aa flow

Answer 1

Rhyolitic magma is associated with explosive volcanic eruptions and has a high viscosity. It has a light gray to pinkish to somewhat reddish color and aphanitic texture with small crystals.

Step-by-step explanation:

Rhyolitic magma is typically associated with explosive volcanic eruptions. It has a high silica content, making it very viscous and slow-moving. The color of rhyolitic lava can vary, but it is often light gray to pinkish to somewhat reddish in color.

The texture of rhyolitic lava is aphanitic, meaning it has very small crystals (<1 mm in size) due to the rapid cooling of the high-viscosity lava.

The mineral content of rhyolitic lava includes minerals such as quartz, feldspar, and biotite.