Definition, Meaning & Synonyms

protolithic

Adjective

/ˌproʊtəˈlɪθɪk/

Definition

Relating to the primary or original rock from which a metamorphic rock is formed.

Examples

The granite was considered protolithic before it transformed into gneiss.
Geologists often study the protolithic characteristics of rocks to understand their metamorphic history.

Meaning

Protolithic refers to the original rock type before it undergoes transformation through processes such as heat and pressure, leading to metamorphosis.