The Picture Below Is an Example of A(n)___________

question 81

Short Answer

The picture below is an example of a(n)___________.

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Definitions:

Vesicles

Small holes found in a volcanic rock, representing gas bubbles in a magma that were trapped when the lava solidified.

Welded Tuff

A type of rock formed by the compaction and cementation of volcanic ash and debris, heated enough post-deposition to weld together.

Scoria

A dark gray, black, or reddish volcanic rock that contains abundant vesicles, usually having the composition of basalt or andesite; synonymous with volcanic cinders.

Basalt

A dark, fine-grained volcanic rock formed from the rapid cooling of magnesium- and iron-rich lava, characteristic of oceanic crust.