Young graphite in old rocks challenges the earliest signs of life
CHESTNUT HILL, MA (5/18/2011) – Carbon found within ancient rocks has played a crucial role developing a time line for the emergence of biological life on the planet billions of years ago. But applying cutting-edge technology to samples of ancient rocks from northern Canada has revealed the carbon-based minerals may be much younger than the rock they inhabit, a team of researchers report in the latest edition of the journal Nature Geoscience.
The team – which includes researchers from Boston College, the Carnegie Institution of Washington, NASA's Johnson Space Center ...







