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Reconstruction of global redox transitions based on an evolving Precambrian biological carbon pump

Objective

The history of life on Earth is intricately tied to the story of molecular oxygen (O2). Given that we breath O2 every day, the quest to understand its rise over billions of years is inherently tied to the fundamental question of our existence. However, critical turning points in our planets oxygenation, including the Great Oxidation Event, continue to escape our full comprehension.
O2s narrative involves a complex interplay of microbial life, biogeochemical processes, and geological factors, all intricately woven into the carbon cycle. Within the web of transformations, a black hole persists: the Biological Carbon Pump (BCP). The BCP is a crucial component of the Earth's carbon cycle, sequestering carbon from the atmosphere and transferring it to the ocean depths for burial over geological timescales. This burial process directly impacts global O2 levels, making the understanding of the ancient BCP crucial for unlocking Earth's oxygenation mysteries.
However, deciphering how the ancient BCP functioned is challenging, as insights from the modern BCP, which is predominantly shaped by complex life forms, offer limited guidance when it comes to understanding its ancient counterpart, which operated in a world ruled by microorganisms. RETRO-PUMP sets out to unveil the secrets of the Precambrian BCP by reconstructing an ancient and evolving BCP with the goal of unravelling its regulation of O2 levels. It challenges the conventional view of a less efficient Precambrian BCP and explores uncharted relationships between microbial carbon cycling and major O2 transitions. This journey follows a simulated ocean pipeline, from the sunlit photic zone to the deep ocean, culminating in an integration of insights into a numerical framework. By tackling the drivers behind Earths oxygenation, RETRO-PUMP has substantial implications for understanding how the interplay of biological and geological factors ultimately paved the way for the rise of complex life as we know it today.

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Host institution

PHILIPPS UNIVERSITAET MARBURG
Net EU contribution

Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.

€ 1 771 359,00
Address
BIEGENSTRASSE 10
35037 Marburg
Germany

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Region
Hessen Gießen Marburg-Biedenkopf
Activity type
Higher or Secondary Education Establishments
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Total cost

The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.

€ 1 771 359,00

Beneficiaries (1)

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