In a recent study, geologists say Michigan is home to the oldest known rock in the nation. Watersmeet gneiss is found in Michigan's Upper Peninsula. Minnesota's Morton gneiss previously held the ...

"(B)ased on our analyses, we propose that the Watersmeet gneiss wins the prize for the oldest rock, at >3.6 Ga," the report stated. "Taken together, the Archean rocks of the Wyoming-Minnesota ...

Plus, rocks have an illustrious history in greater Minnesota. Iron ore, used to make steel, fed and clothed generations of Iron Rangers. There are agates, beloved by North Shore visitors and the ...

Mars atmosphere mystery could be solved by rocks in Minnesota. News. By Stefanie Waldek published 10 February 2023 Comments (1) ...

The Archean space rock in that impact, dubbed “S2,” was 50 to 200 times larger—big enough to blast at least 10,000 cubic kilometers of vaporized rock into the skies that then recondensed ...

Scientists know that the world’s continents emerged during the Archean eon, which stretched from about 4 to 2.5 billion years ago. But how they formed is a tougher question.; A new study from ...