insider.si.edu

A geologic time scale 2004 / edited by Felix M. Gradstein, James G. Ogg, and Alan G. Smith

Introduction / F.M. Gradstein -- Chronostratigraphy : linking time and rock / F.M. Gradstein, J.G. Ogg and A.G. Smith -- Biostratigraphy : time scales from graphic ...
Yahoo

A Surprising Mathematical Pattern Was Found Hiding in Earth's History

According to a recent study, events geologists use to distinguish transitions between geological chapters in Earth's story follow a hidden hierarchical pattern, one that could shed light on both past ...
New Hampshire Public Radio

Outside/Inbox: How do historians decide how to categorize chunks of time?

Every other Friday, the Outside/In team answers a listener question about the natural world. This week’s question comes from Emily in Washington, DC. Crawford Lake in Milton, Ontario. The answer to ...
insider.si.edu

The Anthropocene as a geological time unit : a guide to the scientific evidence and current debate / edited by Jan Zalasiewicz, University of Leicester [and three others]

NHMAIN copy has bookplate: Smithsonian Institution Libraries, Gift of Alan R. Kabat. "The Anthropocene, a term launched into public debate by Nobel Prize winner Paul Crutzen, has been used informally ...