The USGS publishes a geological map that reveals the underground layers of the U.S. and supports environmental education and ...

Mapping out geology across the U.S. is surprisingly difficult, but the USGS has managed just that, and its map is more ...

NH copy Purchased from the Cullman Endowment. V. 1. The chronostratigraphic scale / F.M. Gradstein and J.G. Ogg -- Biochronology / F.M. Gradstein -- Cyclostratigraphy and astrochronology / L.A. Hinnov ...

A research team led by the Chinese Academy of Sciences has released a new high-resolution geologic map of the Moon. The map includes discoveries made in the last ten years, like an updated chronology ...

Geological time, generally considered as a system of eras, periods and epochs materialized in rock strata, might actually follow a simple and unifying model. Indeed, a new study led by physicist Shaun ...

Are we really living in the Anthropocene, the geological time marked by the global impact of human activity? And if so, when did it begin? These are questions that the Anthropocene Working Group is ...

Earth's 4.5 billion year geological history is full of death and rebirth, mass extinctions and explosions of biodiversity, with different periods often marked by cataclysmic changes that radically ...

The Geologic Atlas of the Lunar Globe doubles the resolution of Apollo-era maps and will support the space ambitions of China and other countries. The Chinese Academy of Sciences (CAS) has released ...