This geological signature consists of ... This is why the K-Pg boundary is so important. It marks the time when this cataclysmic event occurred, when the age of reptiles (dinosaurs) ended, and ...

Earth's geologic epochs—time periods defined by evidence in rock ... have been so great that they'll result in an obvious boundary in Earth's rock layers, the authors say.

“For a long time there was debate in the scientific ... She suggested thinking about this subterranean boundary zone as a geological aspic. “It’s kind of a hard thing to visualize ...

"This boundary can be viewed in many places ... he and Ault note that their forensic tool can be applied throughout geologic time to investigate weathering, alternation and erosion of Earth's ...

Scientists confirm Zealandia, Earth's eighth continent, submerged almost two million square miles, with only 5% above water.

"The continents were assembled a few pieces at a time, a bit like ... various components so geologists can piece together the previous images. "We found that plate boundary zones account for ...

The geologic time scale provides the official framework ... represented by a single geological site — known as the Global Boundary Stratotype Section and Point (GSSP) — that best captures ...