Early Archaean Microorganisms Preferred Elemental Sulfur, Not Sulfate

Details Early Archaean Microorganisms Preferred Elemental Sulfur, Not Sulfate Early Archaean Microorganisms Preferred Elemental Sulfur, Not Sulfate

Sep 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007sci...317.1534p&link_type=abstract

Science, Volume 317, Issue 5844, pp. 1534- (2007).

Mathematics

Logic

21

Scientific paper

Microscopic sulfides with low 34S/32S ratios in marine sulfate deposits from the 3490-million-year-old Dresser Formation, Australia, have been interpreted as evidence for the presence of early sulfate-reducing organisms on Earth. We show that these microscopic sulfides have a mass-independently fractionated sulfur isotopic anomaly (Δ33S) that differs from that of their host sulfate (barite). These microscopic sulfides could not have been produced by sulfate-reducing microbes, nor by abiologic processes that involve reduction of sulfate. Instead, we interpret the combined negative δ34S and positive Δ33S signature of these microscopic sulfides as evidence for the early existence of organisms that disproportionate elemental sulfur.

Affiliated with

Also associated with

No associations

Rating

Early Archaean Microorganisms Preferred Elemental Sulfur, Not Sulfate does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Early Archaean Microorganisms Preferred Elemental Sulfur, Not Sulfate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Early Archaean Microorganisms Preferred Elemental Sulfur, Not Sulfate will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1292464