The Hadean Eon, Earth's first geological period, remains shrouded in mystery due to scarce rock records. However, Québec's ...

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, ...

Earth formed about 4.6 billion years ago, during the geological eon known as the Hadean. The name "Hadean" comes from the ...

Researchers have made a new discovery that changes our understanding of Earth's early geological history, challenging beliefs about how our continents formed and when plate tectonics began.

Gray rocks uncovered in northern Nunavik, Quebec, Canada may be the ultimate primordial find. The stones date back 4.16 ...

Scientists have identified the geological site that they say best reflects a proposed new epoch called the Anthropocene — a major step toward changing the official timeline of Earth’s history.

In geology, he noted, an event can be anything from a single raindrop pitting a lump of clay to the Great Oxidation Event that transformed earth’s atmosphere some 2.2 billion years ago.

Fossils and their placement within geological strata provide a historical timeline of life on Earth. 4-ESS1-1: Identify evidence from patterns in rock formations and fossils in rock layers to support ...

Early Earth's first crust composition discovery rewrites geological timeline Date: April 2, 2025 Source: Macquarie University Summary: Modern continental rocks carry chemical signatures from the ...

Early Earth's first crust composition discovery rewrites geological timeline Modern continental rocks carry chemical signatures from the very start of our planet’s history, challenging current ...