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.
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
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
Although most metamorphism involves temperatures above 150°C, some metamorphism takes place at temperatures lower than those at which the parent rock formed.
From Textbooks ● Jan. 1, 2015
The parent rock would have covered this to a uniform depth of rather more than two kilometres, and the derived sediment to more than 1.5 kilometres, or about one mile deep.
From The Birth-Time of the World and Other Scientific Essays by John Joly
