Tephra and Lava

Question 1

Pahoehoe lava characteristics?

Answer 1

thin, low viscosity, smooth, basaltic at 1200”C

Question 2

A’A’ lava characteristics?

Answer 2

Highly viscous, Andesitic, made of clinker lava blocks

Question 3

Pillow Lava characteristics?

Answer 3

underwater eruption, skin formed from rapidly cooling lava

Question 4

Ash characteristics?

Answer 4

Under 2mm in diameter particles formed by solidified gases or when magma contacts water phreatomagmatic eruptions

Question 5

Bombs characteristics?

Answer 5

Blocks of solid ejected semi-molten

Question 6

Lapilli characteristics?

Answer 6

2-64mm in diameter, formed by solidifying magma