Publication Date:
1992-01-03
Description:
The Tumbiana Formation, about 2700 million years old, was largely deposited in ephemeral saline lakes, as judged by the unusual evaporite paragenesis of carbonate and halite with no sulfate. Stromatolites of diverse morphology occur in the lacustrine sediments, some with palimpsest fabrics after erect filaments. These stromatolites were probably accreted by phototropic microbes that, from their habitat in shallow isolated basins with negligible sulfate concentrations, almost certainly metabolized by ozygenic photosynthesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Buick, R -- New York, N.Y. -- Science. 1992 Jan 3;255(5040):74-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Botanical Museum, Harvard University, Cambridge, MA 02138, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11536492" target="_blank"〉PubMed〈/a〉
Keywords:
Archaea
;
Australia
;
Bacteria
;
*Biological Evolution
;
Carbonates/analysis/chemistry/metabolism
;
Earth (Planet)
;
*Environmental Microbiology
;
*Evolution, Planetary
;
*Fossils
;
Fresh Water
;
Geologic Sediments/*analysis/microbiology
;
Oxidation-Reduction
;
Paleontology
;
Photosynthesis/*physiology
;
Sodium Chloride/analysis
;
Sulfates/analysis
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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