Carbonaceous Rocks of the Soudan Iron Formation (Early Precambrian)
- 25 June 1965
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 148 (3678) , 1713-1716
- https://doi.org/10.1126/science.148.3678.1713
Abstract
Carbon-rich rocks more than 2.7 billion years old, from the Soudan Iron Formation of northeastern Minnesota, contain pyrite balls in which are found microstructures of possible biologic origin. The C13/C12 and S34/S32 ratios and minor element composition of this rock are consistent with such an interpretation. Hydrocarbons of presumed vital origin are also present, although it is not certain that they are endemic to the rock.Keywords
This publication has 4 references indexed in Scilit:
- Evidence of Life Processes in a Sediment Two and a Half Billion Years OldNature, 1965
- Significance of the Gunflint (Precambrian) MicrofloraScience, 1965
- Microorganisms from the Gunflint ChertScience, 1965
- Graphitization of Organic Material in a Progressively Metamorphosed Precambrian Iron FormationScience, 1964