Early trace of life from 3.95 Ga sedimentary rocks in Labrador, Canada

Takayuki Tashiro, Akizumi Ishida, Masako Hori, Motoko Igisu, Mizuho Koike, Pauline Méjean, Naoto Takahata, Yuji Sano () and Tsuyoshi Komiya ()
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Takayuki Tashiro: Graduate School of Arts and Sciences, The University of Tokyo
Akizumi Ishida: Atmosphere and Ocean Research Institute, The University of Tokyo
Masako Hori: Atmosphere and Ocean Research Institute, The University of Tokyo
Motoko Igisu: Laboratory of Ocean-Earth Life Evolution Research, Japan Agency for Marine-Earth Science and Technology (JAMSTEC)
Mizuho Koike: Atmosphere and Ocean Research Institute, The University of Tokyo
Pauline Méjean: Atmosphere and Ocean Research Institute, The University of Tokyo
Naoto Takahata: Atmosphere and Ocean Research Institute, The University of Tokyo
Yuji Sano: Atmosphere and Ocean Research Institute, The University of Tokyo
Tsuyoshi Komiya: Graduate School of Arts and Sciences, The University of Tokyo

Nature, 2017, vol. 549, issue 7673, 516-518

Abstract: The authors provide evidence for the existence of life on Earth in the earliest known sedimentary rocks and suggest that the presence of organic carbon, and low stable-isotope values of graphite from sedimentary rocks in Labrador pushes back the existence of organic life to beyond 3.95 billion years.

Date: 2017
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DOI: 10.1038/nature24019

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