parent rock
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
As with all metamorphic rock, the parent rock texture and chemistry are major factors in determining the final outcome of the metamorphic process, including what index minerals are present.
From Textbooks • Jan. 1, 2017
These space rocks came from the same parent rock and provided evidence for the first asteroid from the collision.
From New York Times • Jun. 16, 2016
Dr. Schmitz and his team concluded that the new space rock, which they named Öst 65, came from the asteroid that smashed into the same L-chondrite parent rock that littered the ancient seafloor with debris.
From New York Times • Jun. 16, 2016
Two things that a geologist first considers when looking at a metamorphic rock are what the parent rock might have been, and what type of metamorphism has taken place.
From Textbooks • Jan. 1, 2015
It contains no substances which have not been derived from the weathering of the parent rock.
From The Elements of Geology by Norton, William Harmon
