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.
Metamorphic source rocks, the rocks that experience the metamorphism, are called the parent rock or protolith, from proto– meaning first, and lithos- meaning rock.
From Textbooks ● Jan. 1, 2017
Instead, directed stress modifies the parent rock at a mechanical level, changing the arrangement, size, and/or shape of the mineral crystals.
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
He examined it closely; yes, it was quartz, the parent rock of gold.
From The Great Gold Rush A Tale of the Klondike by Jarvis, W. H. P. (William Henry Pope)