What rock is formed when shale and mudstone are heated?
A) coal
B) limestone
C) granite
D) slate
E) marble

Question

What rock is formed when shale and mudstone are heated?​
A) ​coal
B) ​limestone
C) ​granite
D) ​slate
E) ​marble

Quizplus · Accepted Answer

Shale and mudstone are sedimentary rocks that form from the accumulation and compaction of mud and clay particles. When these rocks are subjected to heat and pressure, they undergo metamorphism and can transform into slate, which is a foliated metamorphic rock characterized by a fine-grained texture and the ability to split into thin layers. Coal forms from the accumulation and compaction of plant remains, limestone forms from the accumulation of shells and other calcareous materials, granite forms from the cooling and solidification of magma, and marble forms from the metamorphism of limestone.

What Rock Is Formed When Shale and Mudstone Are Heated?​

What Rock Is Formed When Shale and Mudstone Are Heated?