Results 1 to 10 of about 3,401 (214)

Restoration experiments in polymetallic nodule areas [PDF]

Integrated Environmental Assessment and Management, 2021
Abstract Deep-seabed polymetallic nodule mining can have multiple adverse effects on benthic communities, such as permanent loss of habitat by removal of nodules and habitat modification of sediments. One tool to manage biodiversity risks is the mitigation hierarchy, including avoidance, minimization of impacts, rehabilitation and/or ...
Sabine Gollner, Matthias Haeckel, Felix Janssen, Nene Lefaible, Massimiliano Molari, Stavroula Papadopoulou, Gert-Jan Reichart, João Trabucho Alexandre, Annemiek Vink, Ann Vanreusel   +9 more
openaire   +6 more sources

Nano-mineralogy and growth environment of Fe-Mn polymetallic crusts and nodules from the South China Sea

Frontiers in Marine Science, 2023
Fe-Mn polymetallic crusts and nodules from the South China Sea (SCS) consist of submarine ferromanganese (Fe-Mn) oxide precipitates, and represent important marine mineral resource with substantial economic and scientific research value. Previous studies
Yao Guan, Xiaoming Sun
exaly   +3 more sources

Potential impacts of polymetallic nodule removal on deep-sea meiofauna [PDF]

Scientific Reports, 2021
Deep seabed mining is potentially imminent in the Clarion Clipperton Fracture Zone (CCFZ; northeast Pacific). Seabed collectors will remove polymetallic nodules and the surrounding surface sediments, both inhabited by meiofauna, along their path.
Ellen Pape, Tania Nara Bezerra, Hendrik Gheerardyn, Marius Buydens, Amanda Kieswetter, Ann Vanreusel   +5 more
doaj   +5 more sources

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
Jort van Wijk, Edwin de Hoog
exaly   +3 more sources

Biological responses to disturbance from simulated deep-sea polymetallic nodule mining. [PDF]

PLoS ONE, 2017
Commercial-scale mining for polymetallic nodules could have a major impact on the deep-sea environment, but the effects of these mining activities on deep-sea ecosystems are very poorly known. The first commercial test mining for polymetallic nodules was
Daniel O B Jones, Stefanie Kaiser, Andrew K Sweetman, Craig R Smith, Lenaick Menot, Annemiek Vink, Dwight Trueblood, Jens Greinert, David S M Billett, Pedro Martinez Arbizu, Teresa Radziejewska, Ravail Singh, Baban Ingole, Tanja Stratmann, Erik Simon-Lledó, Jennifer M Durden, Malcolm R Clark   +16 more
doaj   +9 more sources

Limited Spatial and Temporal Variability in Meiofauna and Nematode Communities at Distant but Environmentally Similar Sites in an Area of Interest for Deep-Sea Mining [PDF]

Frontiers in Marine Science, 2017
To be able to adequately assess potential environmental impacts of deep-sea polymetallic nodule mining, the establishment of a proper environmental baseline, incorporating both spatial and temporal variability, is essential.
Ellen Pape, Tania N. Bezerra, Freija Hauquier, Ann Vanreusel   +3 more
doaj   +4 more sources

Bacterial contributions to the formation of polymetallic nodules in the Pacific Ocean

Frontiers in Marine Science
Polymetallic nodules, widely distributed in the deep seafloor of the Pacific Ocean, are characterized by their abundance of diverse metal elements and considerable economic value. Previous studies have suggested a partial biogenic origin of these nodules.
Zheng-Gang Li, Yanhui Dong, Li Huaiming
exaly   +3 more sources

Studies on Analysis Conditions of Specific Surface Area of Polymetallic Nodules

Yankuang ceshi, 2021
BACKGROUND Polymetallic nodules are predominant in deep sea sedimentary mineral resources due to the enrichment of many critical metals. Polymetallic nodules are loose and porous, which is the critical material feature that contributes the adsorption of ...
LI Hao-nan, REN Xiang-wen, SONG Zhao-jun, LI Huai-ming, WANG Wen-yu   +4 more
doaj   +1 more source

Exploration of Polymetallic Nodules

Minerals, 2022
The use of mineral resources has always been critical for human development [...]
Pedro Madureira, Tomasz Abramowski
openaire   +1 more source

Research Status of Deep-Sea Polymetallic Nodule Collection Technology

Journal of Marine Science and Engineering
The bottom of the ocean is rich in mineral resources, and deep-sea mining has been a research hotspot in recent years. As a key part of deep-sea mining operation, polymetallic nodule collection technology has been researched in many countries around the ...
Boying Liu, Xiaoxiang Wang, Xiuzhan Zhang, Jiancheng Liu, Liangwan Rong, Yong Ma   +5 more
doaj   +2 more sources