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.
Some hydrothermal alterations remove elements from the parent rock rather than deposit them.
From Textbooks • Jan. 1, 2017
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
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
As already noted, the nature of the parent rock controls the types of metamorphic rocks that can form from it under differing metamorphic conditions.
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