“They may have documented [the United States’] oldest known rock,” he says, “but the challenge to young readers will be to discover an even older rock.” Frost agrees. The 3.8-billion ...

A new geological study has uncovered the oldest rock in the United States, dating back 3.6 billion years. The research, published in GSA Today, identifies the Watersmeet Gneiss in Michigan as ...

Geologists recently dated the age of Watersmeet gneiss, a type of rock in the Upper Peninsula, as the oldest in the U.S. Here ...

The oldest rock in the United States has been discovered in Michigan, with zircons dating back 3.82 billion years.

"Taken together, the Archean rocks of the Wyoming-Minnesota-Michigan block represent the oldest continental crust in the United States, the nucleus around which the younger rocks of the nation ...

The oldest mayor in the United States died on Saturday night at the age of 100 while serving his second term in New Jersey. Tinton Falls Mayor Vito Perillo, born in 1924, served in the US Navy ...

"Taken together, the Archean rocks of the Wyoming-Minnesota-Michigan block represent the oldest continental crust in the United States, the nucleus around which the younger rocks of the nation ...