Microbial activity promotes the enrichment of cobalt over nickel on hydrogenetic ferromanganese crusts

Sujith, P. P.; Ramanan, D.; Gonsalves, Maria–Judith; LokaBharathi, P.A.

doi:10.1080/1064119x.2017.1298169

Cited by 3 publications

(2 citation statements)

References 63 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Fossils found in sediments are frequently used to reconstruct and understand the past chemistry and temperature of the ocean. For example, the calcium carbonate shells of microorganisms such as foraminifera or coccoliths can be analyzed using oxygen isotopes to determine the temperature and chemistry of ancient seawater and how cold the ocean was at the time the shell formed (Spero et al 1997;Ornella Amore et al 2004;Maeda et al 2017). Moreover, diatom microfossils can be used to understand upwelling currents and reconstruct past wind and weather patterns (Abrantes 1991;Schrader and Sorknes 1991;Zúñiga et al 2017).…”

Section: Other Microbial Ecosystem Service Impacts From Mining Ferromanganese Nodulesmentioning

confidence: 99%

“…Polymetallic crusts are formed slowly (1-5 mm per million years), and biomineralization by microorganisms plays a role in initiation of crust accretion, serving as a biological nuclei . Microorganisms may also play a role in promoting the enrichment of cobalt in the crust through sorption/immobilization processes (Krishnan et al 2006;Sujith et al 2017).…”

Section: Cobalt Crusts On Basaltic Seamountsmentioning

confidence: 99%

See 1 more Smart Citation

Impacts of deep‐sea mining on microbial ecosystem services

Orcutt

Bradley

Brazelton

et al. 2020

Limnology & Oceanography

View full text Add to dashboard Cite

Interest in extracting mineral resources from the seafloor through deep-sea mining has accelerated in the past decade, driven by consumer demand for various metals like zinc, cobalt, and rare earth elements. While there are ongoing studies evaluating potential environmental impacts of deep-sea mining activities, these focus primarily on impacts to animal biodiversity. The microscopic spectrum of seafloor life and the services that this life provides in the deep sea are rarely considered explicitly. In April 2018, scientists met to define the microbial ecosystem services that should be considered when assessing potential impacts of deep-sea mining, and to provide recommendations for how to evaluate and safeguard these services. Here, we indicate that the potential impacts of mining on microbial ecosystem services in the deep sea vary substantially, from minimal expected impact to loss of services that cannot be remedied by protected area offsets. For example, we (1) describe potential major losses of microbial ecosystem services at active hydrothermal vent habitats impacted by mining, (2) speculate that there could be major ecosystem service degradation at inactive massive sulfide deposits without extensive mitigation efforts, (3) suggest minor impacts to carbon sequestration within manganese nodule fields coupled with potentially important impacts to primary production capacity, and (4) surmise that assessment of impacts to microbial ecosystem services at seamounts with ferromanganese crusts is too poorly understood to be definitive. We conclude by recommending that baseline assessments of microbial diversity, biomass, and, importantly, biogeochemical function need to be considered in environmental impact assessments of deep-sea mining.With increasing demand for rare and critical metals-such as cobalt, copper, manganese, tellurium, and zinc-there is increasing interest in mining these resources from the seafloor (Hein et al. 2013; Wedding et al. 2015;Thompson et al. 2018). The primary mineral resources in the deep sea that attract attention fall into four categories (Figs. 1, 2): (1) massive sulfide deposits created at active high-temperature hydrothermal vent systems along mid-ocean ridges, back-arc spreading centers, and volcanic arcs, from the mixing of mineral-rich, advecting hydrothermal fluids with bottom seawater; (2) similar deposits at inactive hydrothermal vent sites, where fluid advection has ceased but mineral deposits remain; (3) polymetallic nodules that form on the seafloor of the open ocean

show abstract

Section: Other Microbial Ecosystem Service Impacts From Mining Ferromanganese Nodulesmentioning

confidence: 99%

Section: Cobalt Crusts On Basaltic Seamountsmentioning

confidence: 99%

Impacts of deep‐sea mining on microbial ecosystem services

Orcutt

Bradley

Brazelton

et al. 2020

Limnology & Oceanography

View full text Add to dashboard Cite

show abstract

Ferromanganese oxide deposits: Geochemical and microbiological perspectives of interactions of cobalt and nickel

Sujith

Gonsalves

2021

Ore Geology Reviews

View full text Add to dashboard Cite

Impacts of Deep-Sea Mining on Microbial Ecosystem Services

Orcutt

Bradley

Brazelton

et al. 2018

Preprint

View full text Add to dashboard Cite

32Interest in extracting mineral resources from the seafloor through deep-sea mining has 33 accelerated substantially in the past decade, driven by increasing consumer demand for various 34 metals like copper, zinc, manganese, cobalt and rare earth elements. While there are many on-35going discussions and studies evaluating potential environmental impacts of deep-sea mining 36activities, these focus primarily on impacts to animal biodiversity. The microscopic spectrum of 37 life on the seafloor and the services that this microbial realm provides in the deep sea are rarely 38 considered explicitly. In April 2018, a community of scientists met to define the microbial 39 ecosystem services that should be considered when assessing potential impacts of deep-sea 40 mining, and to provide recommendations for how to evaluate these services. Here we show that 41 the potential impacts of mining on microbial ecosystem services in the deep sea vary 42 substantially, from minimal expected impact to complete loss of services that cannot be remedied 43 by protected area offsets. We conclude by recommending that certain types of ecosystems should 44 be "off limits" until initial characterizations can be performed, and that baseline assessments of 45 microbial diversity, biomass, and biogeochemical function need to be considered in 46environmental impact assessments of all potential instances of deep-sea mining. 47 48 49KEYWORDS (5-8): deep-sea mining, ecosystem services, hydrothermal vents, inactive 50 sulfides, ferromanganese nodules, cobalt crusts, seamounts, marine microbiology 51 52

show abstract

Microbial activity promotes the enrichment of cobalt over nickel on hydrogenetic ferromanganese crusts

Cited by 3 publications

References 63 publications

Impacts of deep‐sea mining on microbial ecosystem services

Impacts of deep‐sea mining on microbial ecosystem services

Ferromanganese oxide deposits: Geochemical and microbiological perspectives of interactions of cobalt and nickel

Impacts of Deep-Sea Mining on Microbial Ecosystem Services

Contact Info

Product

Resources

About