Evidence for biogenic graphite in early Archaean Isua metasedimentary rocks
Abstract
The Archaean rocks of Isua, West Greenland, contain graphite, but its origins are debated. Geochemical and microscopic analyses suggest that the graphite was formed from biologically formed carbon that was deposited at least 3.7 billion years ago.
- Publication:
-
Nature Geoscience
- Pub Date:
- January 2014
- DOI:
- Bibcode:
- 2014NatGe...7...25O