The stretch of geologic history is commonly referred to as "deep time," and it's a concept perhaps as difficult to conceive as deep space. Can humans measure deep time? Yes. Will we ever truly ...

Iron oxide minerals are found in rocks around the globe. Some are magnetic, and some of them rust—especially when exposed to water and oxygen. These characteristics provide clues about the history of ...

Understanding Earth's Deep Past provides an assessment of both the demonstrated and underdeveloped potential of the deep-time geologic record to inform us about the dynamics of the global climate ...

Geologic Time is a crucial concept to understanding the history of the earth—including the evolution of life. Many different representations of the timeline have been created, and many approaches ...

It has therefore become possible that, by means of changes which are known to have occurred in a given number of years, some measurement of the time represented by the whole series of geological ...

The findings hold the potential to serve as a global time marker, representing a promising advancement in the dating of geological archives spanning millions of years. The team presents its ...

Entrance to ONKALO, Finland’s deep geological repository for spent nuclear fuel. (Photo: Posiva Oy) As the world looks to alternatives to fossil fuels to combat climate change, several countries are ...

As its name implies, this includes all of geological time prior to the Cambrian period ... with little or no free oxygen. Iron sinks deep inside Earth and forms its core. Lighter elements like ...