Are we really living in the Anthropocene, the geological time marked by the global impact of human activity? And if so, when did it begin? These are questions that the Anthropocene Working Group is ...

Earth's 4.5 billion year geological history is full of death and rebirth, mass extinctions and explosions of biodiversity, with different periods often marked by cataclysmic changes that radically ...

The Working Group on the 'Anthropocene' (AWG) will provide its summary of evidence and its provisional recommendations on a potential new geological time interval. The Working Group on the ...

Bruce Bjornstad has loved rocks since he was a kid, growing up on the East Coast. But his real love and expertise is the Missoula Floods — cataclysmic events that scoured the Columbia Basin and laid ...

After years of debate, the International Chronostratigraphic Chart has officially been revised. What does that mean, exactly? Our current point in Earth's geological timeline has been updated so that ...

Reston, VA – The U.S. Geological Survey (USGS) and the Association of American State Geologists (AASG) announced that they have developed an updated geologic time scale and color scheme for use in ...

The Geologic Time Scale depends on two aspects of the dating of the records. First, the sedimentary records that are collected worldwide must be linked together through significant events, such as the ...