Lithified ash (or ash mixed with pyroclastic fragments)forms a volcaniclastic rock called a:
A) tephra
B) scoria
C) lapilli
D) tuff

Question

Quizplus · Accepted Answer

Lithified ash or ash mixed with pyroclastic fragments form tuff, which is a type of volcaniclastic rock. Tephra refers to any material ejected during a volcanic eruption, including ash and larger fragments. Scoria is a type of volcanic rock formed from lava containing abundant gas bubbles. Lapilli refers to small rock fragments ejected during an explosive volcanic eruption.

Lithified Ash (Or Ash Mixed with Pyroclastic Fragments)forms a Volcaniclastic