Encyclopedia of Astrobiology

Living Edition
| Editors: Muriel Gargaud, William M. Irvine, Ricardo Amils, Henderson James Cleaves, Daniele Pinti, José Cernicharo Quintanilla, Michel Viso

Warrawoona Group

Living reference work entry
DOI: https://doi.org/10.1007/978-3-642-27833-4_1675-3

Definition

The 3.52–3.43 Ga-old Warrawoona Group is a ∼12 km-thick succession of dominantly volcanic and minor sedimentary rocks forming the base of the Pilbara Supergroup in the Pilbara Craton, Western Australia. It is famous for hosting the world’s oldest evidence of life, as stromatolites, microbially induced sedimentary structures and molecular remnants in bedded sedimentary rocks of the ca. 3.49 Ga Dresser Formation, probable microfossils in chert-barite hydrothermal feeder veins associated with the Dresser Formation, and other microfossils in bedded chert from the overlying ca. 3.47 Ga Mount Ada Basalt.

See Also

Keywords

Bioorganic Chemistry Sedimentary Rock Sedimentary Structure Archean Trace Feeder Vein 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  1. 1.School of Biological, Earth and Environmental SciencesUniversity of New Southwales AustraliaVensingtonAustralia