Access
To read this story in full you will need to login or make a payment (see right).
News
Nature 444, 134-135 (9 November 2006) | doi:10.1038/444134a; Published online 8 November 2006
Special report Telling the time
Top of page
Abstract
Geochronologists are pinning down dates in deep time better than ever before. Rex Dalton talks to the experts who are redrawing the details of Earth history.
By fine-tuning their techniques, researchers are refining their ability to measure ever more precisely the ticking of Earth's geological clock.For decades, geologists and palaeontologists have had only ball-park estimates for when major events happened in the history of life on Earth.
To read this story in full you will need to login or make a payment (see right).