≥3700 Ma pre-metamorphic dolomite formed by microbial mediation in the Isua supracrustal belt (W.Greenland): Simple evidence for early life?
Date
2010
Authors
Nutman, Allen P
Friend, Clark
Bennett, Victoria
Wright, David
Norman, Marc
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Publisher
Elsevier
Abstract
Chemical (meta)sedimentary rocks in the amphibolite facies ≥3700Ma Isua supracrustal belt (W. Greenland) are mostly strongly deformed, so there is only a small chance of the survival of features such as stromatolites or microfossils that would be direct
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Keywords
Keywords: amphibolite facies; biosphere; carbon isotope; carbonate rock; dolomite; geochemistry; isotopic composition; metasomatism; microfossil; pillow lava; rare earth element; stromatolite; trace element; Arctic; Greenland; Isua Greenstone Belt Chemical sedimentary rocks; Dolomite; Early life; Isua supracrustal belt; Pillow lava interstices; REE+Y chemistry
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Source
Precambrian Research
Type
Journal article
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Restricted until
2037-12-31
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