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.
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
In most cases, this is sedimentary or igneous rock, but metamorphic rock that reaches the surface and is then reburied can also be considered a parent rock.
From Textbooks ● Jan. 1, 2015
The critical feature of the parent rock is its mineral composition because it is the stability of minerals that counts when metamorphism takes place.
From Textbooks ● Jan. 1, 2015
It may remain in place above the parent rock, or may be transported and redeposited, either on land or under water, by the agencies of air, water, and ice.
From The Economic Aspect of Geology by C. K. (Charles Kenneth) Leith
