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Millimeter-scale concentration gradients of hydrocarbons in Archean shales: Live-oil escape or fingerprint of contamination?

Date

Authors

Brocks, Jochen

Publisher

Pergamon-Elsevier Ltd

Abstract

Archean shales from the Pilbara in Western Australia contain biomarkers that have been interpreted as evidence for the existence of cyanobacteria and eukaryotes 2.7 billion years (Ga) ago, with far reaching implications for the evolution of Earth's early

Keywords

Keywords: alkane; Archean; aromatic hydrocarbon; biomarker; biosphere; cyanobacterium; eukaryote; hydrocarbon resource; model test; paleoenvironment; provenance; shale; source rock; spatial distribution; thermal maturity; Australia; Pilbara; Western Australia; Cyan

URI

http://hdl.handle.net/1885/68939

Collections

ANU Research Publications

Source

Geochimica et Cosmochimica Acta

Type

Journal article

DOI

10.1016/j.gca.2011.03.014

Restricted until

2037-12-31

Downloads

File

Description

01_Brocks_Millimeter-scale_concentration_2011.pdf (2.44 MB)