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Yi-Liang Li, Si Sun and Lung S. Chan Phosphogenesis in the 2460 and 2728 million-year-old banded iron formations as evidence for biological cycling of phosphate in the early biosphere Ecology and Evolution 3

Version of Record online: 26 FEB 2013 | DOI: 10.1002/ece3.443

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The Archean Phosphorus Crisis hypothesizes that the precipitation of ferric oxihydroxide might have significantly removed phosphorus from the pre-1.9 billion-year-old oceans that resulted in a primary productivity of the early marine ecosystem only equals to 25% or less of the modern marine ecosystem. We observed the primary precipitation of phosphate in banded iron formations may represent the mineralization of phosphorus from the localized phytoplankton blooms and suggest a biologically controlled, rather than geochemically controlled cycling of phosphorus.

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