Some minerals in rocks and organic matter (e.g., wood, bones, and shells) can contain radioactive isotopes. The abundances of parent and daughter isotopes in a sample can be measured and used to ...

Three women who own properties in Elliot Lake, ON are disappointed and shocked after a federal judge rejected their appeal to order the removal of radioactive mine waste rock around their homes.

Many chemical elements in rock exist in a number of slightly different forms, known as isotopes. Certain isotopes are unstable and undergo a process of radioactive decay, slowly and steadily ...

Radionuclides of natural origin contained in or released from process materials may pose a risk to workers, public or the environment. These radioactive elements in minerals and ores originally found ...

The world's oldest rocks are spread across the globe and paint a picture of Earth's turbulent early history. Here are some of the most notable and important formations scientists have discovered.

Sweden has started constructing a nuclear waste repository to store radioactive waste deep underground near the Forsmark ...

That’s the situation that faced authorities in Australia, as they scoured over a thousand kilometers of desert highway for a tiny missing radioactive source with the potential to cause serious harm.

Activities include museum visits, rock collecting, and gifting gemstones. Geologists use radioactive dating to determine rocks' ages, with the oldest dated rock being 4.4 billion years old.