It was against this background of dramatic and exciting ... but without the discovery of how to quantify geologic time, confirmation of plate tectonics would not have been possible.

Hiatuses recording many millions of years (known as unconformities) are beloved by geologists and cited often to illustrate the depths of geologic time. There is a lot of attention paid to these ...

These key events frame the chapters in the story of life on earth and the system we use to bind all these chapters together is the Geologic Time Scale. By looking at the layers beneath our feet ...

For many of us, the Pyramids–built 4,500 years ago, a millionth of that time span–symbolize the distant past. The geological time scale helps us grapple with the vast swaths of time that life ...

It’s one of three newly designated ages divvying up the Holocene Epoch, a geologic time period kicked off 11,700 years ago by the end of the Ice Age. First came a warming period, now dubbed the ...

We thought we’d take a look at things over a much larger time period, so let’s dig into geologic time. A matter of time The Jurassic Period came during the Mesozoic Era, from 250 million ...

Unofficially, some scientists say we’ve recently entered a new geologic time, the Anthropocene. The debate gets even more nuanced with some researchers saying it should start at the Industrial ...

Bjornstad gives us a geologic tour from an outlook ... with the Hanford site past it in the background. We’ve come to talk about geology, deep time and the way they connect to current cleanup ...