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	1.	Metalliferous Biosignatures for Deep Subsurface Microbial Activity. [electronic resource] by Parnell, John Brolly, Connor Spinks, Sam Bowden, Stephen Producer: 20160913 In: Origins of life and evolution of the biosphere : the journal of the International Society for the Study of the Origin of Life vol. 46 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	2.	Early oxygenation of the terrestrial environment during the Mesoproterozoic. [electronic resource] by Parnell, John Boyce, Adrian J Mark, Darren Bowden, Stephen Spinks, Sam Producer: 20101223 In: Nature vol. 468 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)

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