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≥3700 Ma pre-metamorphic dolomite formed by microbial mediation in the Isua supracrustal belt (W.Greenland): Simple evidence for early life?

Date

Authors

Nutman, Allen P

Friend, Clark

Bennett, Victoria

Wright, David

Norman, Marc

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

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

URI

http://hdl.handle.net/1885/19238

Collections

ANU Research Publications

Source

Precambrian Research

Type

Journal article

DOI

10.1016/j.precamres.2010.08.006

Restricted until

2037-12-31

Downloads

File

Description

01_Nutman_≥3700_Ma_pre-metamorphic_2010.pdf (2.65 MB)

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