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MERIR SIGNED

Methane related iron reduction processes in sediments: Hidden couplings and their significance for carbon and iron cycles

Total Cost €

0

EC-Contrib. €

0

Partnership

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 MERIR project word cloud

Explore the words cloud of the MERIR project. It provides you a very rough idea of what is the project "MERIR" about.

environmental    expertise    dwarfing    resolve    naturally    toward    nonanthropogenic    natural    oxidation    coupled    perspectives    poorly    levels    atmosphere    mineralogy    anaerobic    sulfate    impacts    originate    scavengers    intensive    interdisciplinary    magnetism    carbon    sink    about    mechanisms    near    reactivities    methanogenesis    actually    did    methanotrophs    sediments    reactivity    accompanied    oxide    microbial    co2    unexplained    observations    profiles    striking    global    couplings    involvement    precipitation    below    merir    survival    deep    elucidate    zone    iron    magnitude    reveal    annual    fortunately    active    aerobic    methane    minerals    breakthroughs    cycles    understandings    anthropogenic    authigenic    release    methanogenic    unusual    ch4    depths    sedimentary    mineral    emissions    phenomena    aom    magnetite    strategies    sources    biogeochemical    decreases    concentrations    redox    me    limit    players    aquatic    unexplored    fe   

Project "MERIR" data sheet

The following table provides information about the project.

Coordinator
BEN-GURION UNIVERSITY OF THE NEGEV 

Organization address
address: .
city: BEER SHEVA
postcode: 84105
website: www.bgu.ac.il

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Israel [IL]
 Total cost 2˙000˙000 €
 EC max contribution 2˙000˙000 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2018-COG
 Funding Scheme ERC-COG
 Starting year 2019
 Duration (year-month-day) from 2019-04-01   to  2024-03-31

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    BEN-GURION UNIVERSITY OF THE NEGEV IL (BEER SHEVA) coordinator 2˙000˙000.00

Map

 Project objective

About one-third of annual methane (CH4) emissions to the atmosphere originate from natural, nonanthropogenic sources. However, if all the naturally produced methane actually did reach the atmosphere, its levels would increase by an order of magnitude, dwarfing anthropogenic CO2 emissions. Fortunately, natural scavengers of this methane near its production zone limit its release. One of these scavengers, iron (Fe) oxide, can become a major sink for methane when sulfate concentrations are low. Methane-iron couplings in established sediments, however, are poorly understood. Specifically, significant iron oxide reduction has been observed in many aquatic sediments at depths well below its expected redox zone, where methane is produced by methanogenesis, often accompanied by decreases in methane concentrations. These observations challenge our understandings of iron-methane couplings and microbial players in the deep methanogenic zone and their impacts on the carbon, iron and other cycles. I aim in the proposed research to elucidate the unexplored mechanisms of methane-related iron reduction (MERIR) in the methanogenic zone of established sedimentary profiles under various environmental conditions and their impact on global biogeochemical cycles. I will resolve two striking yet unexplained phenomena: (1) the active involvement of aerobic methanotrophs in iron-coupled anaerobic oxidation of methane (AOM), and (2) the unusual reactivity of iron minerals toward reduction that is accompanied by intensive authigenic magnetite precipitation, and the effects of this mineralogy change on sedimentary magnetism. My expertise will enable me to achieve the objectives of this interdisciplinary proposed work using novel approaches from different fields. The project will likely lead to breakthroughs in our understanding of microbial survival strategies, reveal novel pathways for aerobic methanotrophs, and change our perspectives on iron mineral reactivities and sedimentary magnetism.

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The information about "MERIR" are provided by the European Opendata Portal: CORDIS opendata.

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