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.

Geochemical testing of the stromatolites revealed signs of both extraterrestrial material and nearby bedrock, along with evidence that the structures were altered by hot water.

From Science Daily • May 22, 2026

The age, published this week in the journal Geochemical Perspectives Letters, bumps previously measured ages back in time by 40 million years—closer to the start of the solar system an estimated 4.57 billion years ago.

From National Geographic • Oct. 23, 2023

The research was published in the journal Geochemical Perspectives Letters.

From Salon • Oct. 23, 2023

Geochemical tracers from the cores hint that deposits deeper in the dome were formed from carbonatites—the unusual volcanic rocks associated with the world’s best rare earth deposits.

From Science Magazine • Jun. 1, 2023

“Overall, I think they have done a very comprehensive job,” said Anthony Knap, director of the Geochemical and Environmental Research Group at Texas A&M University, who was not an author or reviewer.

From Seattle Times • Sep. 28, 2022