Diversity in the Archean Biosphere: New Insights from NanoSIMS

The origin of organic microstructures in the similar to 3 Ga Farrel Quartzite is controversial due to their relatively poor state of preservation, the Archean age of the cherts in which they occur, and the unusual spindle-like morphology of some of the forms. To provide more insight into the significance of these microstructures, nano-scale secondary ion mass spectrometry (NanoSIMS) maps of carbon, nitrogen, sulfur, silicon, and oxygen were obtained for spheroidal and spindle-shaped constituents of the Farrel Quartzite assemblage. Results suggest that the structures are all bona fide similar to 3 Ga microfossils.


Published in:
Astrobiology, 10, 413-424
Year:
2010
Keywords:
Laboratories:




 Record created 2012-05-15, last modified 2018-09-13


Rate this document:

Rate this document:
1
2
3
 
(Not yet reviewed)