Blocks is the name used for the biggest pieces of tephra. Tephra is produced by a volcanic eruption.
Mount Bailey is a tephra cone and shield volcano, and is located in Oregon.
why is tephra dangerous: Tephra is usually dangerous because it can come in small sizes or bigger sizes it is made up of rock and smoke
Tephra is basically ash, rock, cinders, and solidified lava spurted from a volcano.
Tephra is stuff that comes out of the volcano, it is mainly disposed as rocks.
no its metamorphic
Tefra
If you are referring to the crossword puzzle clue, a medium sized tephra is also known as lapilli.
A combination volcano develops from repeated lava eruptions and the accompanying tephra deposits Tephra is the debris from the eruption..
ash
Tephra
lava,ash,tephra,volcanic bombs