THE OXYGENATION OF EARTH'S EARLY MARINE ECOSYSTEMS

Grant number: DE190100988 | Funding period: 2019 - 2023

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Abstract

This project aims to map out the complex evolution of the Earth’s ocean ecosystems and oxygenation using marine carbonates. The oxygenation of Earth’s surface is one of the most profound processes to shape the planet, affecting all biological and geological systems. However, uncertainties remain in the timing of oxygenation and how it relates to the evolution of life. This project will develop our understanding of how Earth has remained habitable through significant intervals of environmental change. Using the geology of Australia, and elsewhere, this project is expected to derive the oxygenation evolution of ancient seawater and its effect on reef ecosystems during critical intervals of Ear..

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Related publications (9)

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A novel chemical model for burial diagenesis and Zn–Pb sulphide precipitation within the Carboniferous Waulsortian Limestone, Ireland

J Stacey, M Wallace, C Reed, C Moynihan, W Leonard, A Hood

2022-12-01

Basin-scale processes such as regional fluid flow and organic maturation are commonly associated with the precipitation of Pb–Zn s..

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Nearshore environments before the evolution of land plants

B O'Connell, MW Wallace, AVS Hood, MA Lechte, EM Mahon

2022-11-01

The long-term evolution of the biosphere has caused fundamental shifts in environmental conditions and sedimentation at Earth's su..

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Calcium Isotopic Constraints on the Transition From Aragonite Seas to Calcite Seas in the Cambrian

Guang-Yi Wei, Ashleigh VS Hood, Noah J Planavsky, Da Li, Hong-Fei Ling, Lidya G Tarhan

2022-05-01

The primary mineralogy of marine carbonates has varied over geological time in concert with the secular evolution of global climat..

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Deep water cuspate stromatolites of the Cryogenian Trezona Formation

Brennan O'Connell, Malcolm W Wallace, Ashleigh VS Hood, Luke Rebbechi, Hannah L Brooks

2021-12-16

Stromatolites and microbialites contain a rich repository of environmental and biological information. Despite extensive research,..

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Neoproterozoic syn-glacial carbonate precipitation and implications for a snowball Earth

Ashleigh VS Hood, Donald E Penman, Maxwell A Lechte, Malcolm W Wallace, Jonathan A Giddings, Noah J Planavsky

2021-09-16

The Neoproterozoic 'snowball Earth' hypothesis suggests that a runaway ice-albedo feedback led to two intense glaciations around 7..

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A lithium-isotope perspective on the evolution of carbon and silicon cycles

Boriana Kalderon-Asael, Joachim AR Katchinoff, Noah J Planavsky, Ashleigh Von S Hood, Mathieu Dellinger, Eric J Bellefroid, David S Jones, Axel Hofmann, Frantz Ossa Ossa, Francis A Macdonald, Chunjiang Wang, Terry T Isson, Jack G Murphy, John A Higgins, A Joshua West, Malcolm W Wallace, Dan Asael, Philip AE Pogge von Strandmann

2021-07-15

The evolution of the global carbon and silicon cycles is thought to have contributed to the long-term stability of Earth's climate..

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Mixed carbonate-siliciclastic tidal sedimentation in the Miocene to Pliocene Bouse Formation, palaeo-Gulf of California

Brennan O'Connell, Rebecca J Dorsey, Stephen T Hasiotis, Ashleigh VS Hood

2021-04-02

Mixed carbonate–siliciclastic deposits provide unique insights into hydrodynamic processes that control sedimentation in tidal sys..

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Iron-rich carbonate tidal deposits, Angepena Formation, South Australia: A redox-stratified Cryogenian basin

Brennan O'Connell, Malcolm W Wallace, Ashleigh VS Hood, Maxwell A Lechte, Noah J Planavsky

2020-06-15

The Cryogenian Angepena Formation (ca. 650 Ma) of South Australia records deposition in a peritidal environment equivalent to, and..

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Subglacial meltwater supported aerobic marine habitats during Snowball Earth

Maxwell A Lechte, Malcolm W Wallace, Ashleigh van Smeerdijk Hood, Weiqiang Li, Ganqing Jiang, Galen P Halverson, Dan Asael, Stephanie L McColl, Noah J Planavsky

2019-12-17

The Earth's most severe ice ages interrupted a crucial interval in eukaryotic evolution with widespread ice coverage during the Cr..