Results 31 to 40 of about 264,922 (250)

The Tubotomaculum Enigma and the Rise of Benthic Life During the Opening of the Western Mediterranean Basin. [PDF]

Geobiology
ABSTRACT Large‐scale geological processes shape microbial habitats and drive the evolution of life on Earth. During the Oligocene, convergence between Africa and Europe led to the opening of the Western Mediterranean Basin, a deep‐ocean system characterized by fluid venting, oxygen depletion, and the absence of benthic fauna.
Bernardini S, Abbassi A, Cipollari P, Ventura GD, Saiz-Jimenez C, Mugnaioli E, Jovane L, Sodo A, Bellatreccia F, Zaghloul MN, Cosentino D.   +10 more
europepmc   +2 more sources

Neanthes goodayi sp. nov. (Annelida, Nereididae), a remarkable new annelid species living inside deep-sea polymetallic nodules

European Journal of Taxonomy, 2021
A new species of abyssal Neanthes Kinberg, 1865, N. goodayi sp. nov., is described from the Clarion-Clipperton Zone in the central Pacific Ocean, a region targeted for seabed mineral exploration for polymetallic nodules.
Regan Drennan, Helena Wiklund, Muriel Rabone, Magdalena N. Georgieva, Thomas G. Dahlgren, Adrian G. Glover   +5 more
doaj   +1 more source

Size reduction of CCZ polymetallic nodules under repeated impact fragmentation

Results in Engineering, 2020
Polymetallic nodules provide an alternative source of valuable metals. Nodules from the seabed of the Clarion Clipperton Zone (CCZ), a prospective mining area, are typically abundant at depths of around 5 ​km. Mining these nodules comprises excavation or
J.M. van Wijk, E. de Hoog
doaj   +1 more source

Simulation and Experimental Study of Degradation of Polymetallic Nodules in Deep-Sea Multi-Stage Lifting Motor Pump

Journal of Marine Science and Engineering, 2022
The impeller blades will continually strike the slurry mixture inside the pump, causing deterioration and a change in particle size. In this study, the degradation of mineral particles under various cycle times, rotational speeds, and flow rates is ...
Yan Li, Ziyuan Li, Kesen Liang
doaj   +1 more source

The seabed - an important mineral resource of Slovakia in the future [PDF]

Acta Montanistica Slovaca, 2015
In 1987, Slovakia bought part of the ocean bottom with the occurrence of mineral resources future - polymetallic nodules. The polymetallic nodule is a geological term for naming natural features consisting of more than 40 metals and other chemical ...
Peter Blišťan, Branislav Kršák, Monika Blišťanová, Vojtech Ferencz   +3 more
doaj   +1 more source

Revealing Heavy Metal-Resistant Mechanisms and Bioremediation Potential in a Novel Croceicoccus Species Using Microbial-Induced Carbonate Precipitation

Journal of Marine Science and Engineering, 2023
Polymetallic nodules and polymetallic sulfides are currently the major mineral resources found on the seabed. The motivation behind deep-sea mining arises from the pursuit of valuable metals, driven by both economic and geopolitical considerations ...
Xuya Lv, Yingwen Zhong, Geyi Fu, Yuehong Wu, Xuewei Xu   +4 more
doaj   +1 more source

Monitoring benthic plumes, sediment redeposition and seafloor imprints caused by deep-sea polymetallic nodule mining. [PDF]

Nat Commun
Gazis IZ, de Stigter H, Mohrmann J, Heger K, Diaz M, Gillard B, Baeye M, Veloso-Alarcón ME, Purkiani K, Haeckel M, Vink A, Thomsen L, Greinert J.   +12 more
europepmc   +3 more sources

Spatial Variability of Abyssal Nitrifying Microbes in the North-Eastern Clarion-Clipperton Zone

Frontiers in Marine Science, 2021
Abyssal microbes drive biogeochemical cycles, regulate fluxes of energy and contribute to organic carbon production and remineralization. Therefore, characterizing the spatial variability of benthic microbes is important for understanding their roles in ...
Anita L. Hollingsworth, Anita L. Hollingsworth, Daniel O. B. Jones, C. Robert Young   +3 more
doaj   +1 more source

From the Surface to the Deep-Sea: Bacterial Distributions across Polymetallic Nodule Fields in the Clarion-Clipperton Zone of the Pacific Ocean

Frontiers in Microbiology, 2017
Marine bacteria regulate fluxes of matter and energy essential for pelagic and benthic organisms and may also be involved in the formation and maintenance of commercially valuable abyssal polymetallic nodules.
Markus V. Lindh, Brianne M. Maillot, Christine N. Shulse, Andrew J. Gooday, Diva J. Amon, Craig R. Smith, Matthew J. Church, Matthew J. Church   +7 more
doaj   +1 more source

Simultaneous Leaching of Seafloor Massive Sulfides and Polymetallic Nodules [PDF]

Minerals, 2019
Simultaneous leaching of seafloor massive sulfides (SMS) from Loki’s Castle on the Arctic Mid-Ocean Ridge (AMOR) and polymetallic nodules (PN) from Clarion Clipperton Zone (CCZ) of the Central Pacific Ocean was studied. Leaching tests were conducted using sulfuric acid and sodium chloride, at a temperature of 80 °C for 48 h under reflux.
Przemyslaw Kowalczuk, Hassan Bouzahzah, Rolf Kleiv, Kurt Aasly   +3 more
openaire   +2 more sources