Results 41 to 50 of about 2,744 (183)

REE distribution in sequential leached phases from deep-sea polymetallic nodules and sediments

Review of the Bulgarian Geological Society, 2023
The distribution of main elements and REE in sequential leached phases from deep-sea polymetallic nodules and sediments from the eastern part of the Clarion-Clipperton fractures zone, NE Pacific are studied.
A. Hikov, Z. Milakovska, Valentina Lyubomirova, Nadezhda Lihareva   +3 more
semanticscholar   +1 more source

Results of the second phase of deep-sea polymetallic nodules geological survey in Interoceanmetal Joint Organization licence area (2016–2021)

Mineralia slovaca, 2022
The exploration rights of the Interoceanmetal Joint Organization for exploration of polymetallic nodules (PMN) are granted from 29 March 2001 to an area located within the Clarion-Clipperton Zone (CCZ) in the eastern central Pacifi c Ocean.
B. Peter
semanticscholar   +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

Depression chains in seafloor of contrasting morphology, Atacama Trench margin: a comment on Marsh et al. (2018) [PDF]

Royal Society Open Science, 2019
This comment presents acoustic and visual data showing deep seafloor depression chains similar to those reported in Marsh et al. (R. Soc. open sci. 5: 180286), though from a different deep-sea setting. Marsh et al.
Autun Purser, Helena Herr, Simon Dreutter, Boris Dorschel, Ronnie N. Glud, Laura Hehemann, Ulrich Hoge, Alan J. Jamieson, Thomas D. Linley, Heather A. Stewart, Frank Wenzhöfer   +10 more
doaj   +1 more source

Deep-sea polymetallic nodules as opportunity for future supply with critical raw materials

Review of the Bulgarian Geological Society, 2021
The renewed importance of polymetallic nodules in the context of forecasted increasing demands for metals are discussed. Based on the Interoceanmetal Joint Organization’s (IOM) site-specific data obtained during the exploration activity in the Clarion-Clipperton Fracture Zone, a total of 272.5 Mt of nodules were estimated as economically reasonable for
Valcana Stoyanova, Atanas Hikov, Elitsa Stefanova, Zlatka Milakovska, Tomasz Abramowski, Irena Peytcheva, Silvia Chavdarova, Milen Stavrev   +7 more
openaire   +1 more source

Accurate Identification Method of Small-Size Polymetallic Nodules Based on Seafloor Hyperspectral Data

Journal of Marine Science and Engineering
Polymetallic nodules are spherical or ellipsoidal mineral aggregates formed naturally in deep-sea environments. They contain a variety of metallic elements and are important solid mineral resources on the seabed.
Kai Sun, Ziyin Wu, Mingwei Wang, Jihong Shang, Zhihao Liu, Dineng Zhao, Xiaowen Luo   +6 more
doaj   +1 more source

Potential Short-Term Effects of Mine Tailings on Phytoplankton Assemblages in the Open Ocean

Journal of Marine Science and Engineering, 2022
The disposal of mine tailings into the marine environment is considered an essential option to secure the economic efficiency of deep-sea mining, but it might adversely affects the ecosystem.
Dong Han Choi, Jangyeon Yoo, Wonseok Yang, Jae Hoon Noh, Yeonjung Lee, Kongtae Ra, Kiseong Hyeong, Chan Min Yoo, Jisoo Park   +8 more
doaj   +1 more source

Cautionary Tales for Science‐Based Policy in Deep‐Sea Mining Governance

Global Policy, EarlyView.
ABSTRACT This article examines how low‐certainty scientific claims permeate high‐stakes policy debates before rigorous validation. Using deep‐sea mining governance as a focal domain, the study traces high‐visibility narratives, including the “dark oxygen” hypothesis, radioactive risks of polymetallic nodules, projected impacts of sediment plume ...
Lucía Villar‐Muñoz
wiley   +1 more source

Along the Benthic to Holoplanktonic Continuum: Seafloor Affinity Increases Distance‐Decay Rates Among Abyssal Communities

Global Ecology and Biogeography, Volume 35, Issue 8, August 2026.
ABSTRACT Aim Marine species ranges are often large, contributing to relatively high community similarity over space, with decreased ranges expected among taxa that have lower dispersal and/or higher substrate requirements. We tested for a weakening of biogeographic structuring among dispersing abyssal taxa along the benthic to holoplanktonic habitat ...
Gabrielle N. Ellis, Oliver Kersten, Eric Vetter, Craig R. Smith, Jeffrey C. Drazen, Erica Goetze   +5 more
wiley   +1 more source

Heterogeneous marine environments diversify microbial-driven polymetallic nodule formation in the South China Sea

Frontiers in Marine Science
Most studies on the genesis of polymetallic nodules suggested that nodules in the South China Sea (SCS) are hydrogenetic; however, the complexity and the heterogeneity in hydrology and geochemistry of the SCS might cause different processes of nodule ...
Mingyan Lai, Qian Liu, Qian Liu, Qian Liu, Xiaogu Wang, Dong Sun, Lihua Ran, Xiaohu Li, Xiaohu Li, Xiaohu Li, Chenghao Yang, Bo Lu, Xue-Wei Xu, Chun-Sheng Wang, Chun-Sheng Wang, Chun-Sheng Wang   +15 more
doaj   +1 more source