Project: Develop a 1D biogeochemical-evolutionary model for deep sediments

Acronym/Short Name:

BIO-SED

Project URL:

Project Web Site

Start Date:

2016-10

End Date:

2019-03

Programs:

Center for Dark Energy Biosphere Investigations [C-DEBI]

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Description

Microorganisms buried in marine sediments endure prolonged energy-limitation over geological timescales. This C-DEBI project will investigate energy and activity levels among microbial communities in the marine subsurface. We use thermodynamic and microbial-biogeochemical modelling principles to explore and quantify:
- The energy sources to deeply buried microorganisms and their demand for energy.
- The activity of microorganisms and the factors that determine physiological transitions between active and dormant states.
- The varying energy requirements of active and dormant microbes and the allocation of energy between maintenance and growth.
- The cell-specific energy utilization (i.e. power) of subsurface life on a global scale.

More Information

Funding

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-0939564

Dataset Collections

Dataset Short Name	Full Dataset Title
EA maps z10 zholo and zpleisto	Major catabolic pathway of organic carbon oxidation in Quaternary-age sediment quantified from bio-energetic modeling of subseafloor parameters on a 0.25°×0.25° resolution global grid
global	Calculated power from the oxidation of necromass that is produced in marine sediment on a global scale.
P cm3 z10 zholo and zpleisto	Power produced by microbial POC degradation in Quaternary-age sediment quantified from bio-energetic modeling of subseafloor parameters on a 0.25°×0.25° resolution global grid
POC0	POC concentration at the sediment water interface quantified from bio-energetic modeling on a 0.25°×0.25° resolution global grid
Power per cell CH4 O2 and SO4	Cell-specific power utilization (power per cell) in methanogenic, oxic, and sulfate-reducing sediments quantified from bio-energetic modeling of subseafloor parameters on a 0.25°×0.25° resolution global grid
Power per cell z10 zholo and zpleisto	Microbial power production per cell in Quaternary-age sediment quantified from bio-energetic modeling of subseafloor parameters on a 0.25°×0.25° resolution global grid
single_cell	Calculated power from the oxidation of biomolecules with oxygen at South Pacific Gyre (hole U1370, IODP Expedition 329)
SPG	Modeling bio-energetics for South Pacific Gyre marine sediment at site U1370

Data Management Plan

DMP_Bradley_LaRowe_OCE-0939564.pdf
09/09/2019

Deployments

None available yet

Project Coordinators

Person	Roles	Affiliation
James Bradley	Lead Principal Investigator	Queen Mary University of London
Doug LaRowe	Co-Principal Investigator	University of Southern California (USC)

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Database

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Project: Develop a 1D biogeochemical-evolutionary model for deep sediments