Researchers studying decades of earthquake data say they have found the first evidence that, in addition to spinning backward ...

We will provide a list of web sites with relevant information. The geologic time scale is divided into eons, eras, periods, epochs, and ages. Our activities, and the time scale for download above, ...

Major Geological Events Seem to Follow a Rhythmic Pattern of 27.5 Million Years, Researchers Call It Earth’s ‘Pulse' Dozens of major geological events over the past 260 million years, from sea level ...

Prehistoric time line, geologic time scale, photos, facts, maps, and more from National Geographic. Humans have walked the Earth for 190,000 years, a mere blip in Earth's 4.5-billion-year history.

The geological time scale, established by scientists in the mid-19th century and agreed upon internationally, breaks down the eternity of our planet's history into more manageable units than years.

An introduction to the history of the Earth and its life over the last 4.6 billion years. Applications include geologic principles, earth material, depositional environments, stratigraphy, the ...

Did the Moon’s geological activity stop billions of years ago after it formed, or has it been active since then? This is what a recent study publishe | Space ...

We will look at a few index fossils and see if we can figure out the order they would fall on the geologic timescale. Make a timeline for each group and one for the teacher demo. I have done this with ...