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
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
When radiometric techniques are applied to metamorphic rocks, the results normally tell us the date of metamorphism, not the date when the parent rock formed.
From Textbooks ● Jan. 1, 2015
Slowly split from the parent rock by the weathering process, and carved and sculptured by ages of wind and rain, they waited their moment.
From Riders of the Purple Sage by Zane Grey