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 ...

The Geologic Time Scale 2012, or GTS2012, is the latest understanding of Earth's history, ... providing a complete stratigraphy of all periods and stages with regional applications.

Understanding the geologic time scale and how to organize Earth’s history into a coherent timeline. MS-LS4-1: Analyze and interpret data for patterns in the fossil record that document the existence, ...

New Astronomical Results Refine The Geological Time Scale Date: November 3, 2004 Source: Journal Astronomy & Astrophysics Summary: A team led by Jacques Laskar from the Institut de Mécanique ...

The sum of Earth’s history, divided up into these different sections, is called the Geologic Time Scale and geologists have been defining and refining it for about 150 years (Geologic Society of ...

The geologic time scale was not entirely intentional, at least at its start. In the early 1800s, geologists began to create maps and descriptions showing where different types of rocks occurred ...

On the newly revised geologic time scale, the Holocene Epoch — a time period stretching from the end of the last Ice Age 11,700 years ago to today — is divided into three named ages.

Dividing up deep time The geologic time scale provides the official framework for our understanding of Earth’s 4.5 billion-year history.

The Late Holocene Meghalayan Age, newly-ratified as the most recent unit of the Geologic Time Scale, began at the time when agricultural societies around the world experienced an abrupt and ...

It’s official — you’re living in a new age. It’s called the Meghalayan, and geologists say it's marked by a 'mega-drought' and the collapse of civilizations 4,200 years ago.

The geologic time scale divides Earth’s 4.6 billion-year story into grandly named chapters. Like nesting dolls, the chapters contain sub-chapters, which themselves contain sub-sub-chapters.