Results 61 to 70 of about 91,473 (196)

Characterization, permittivities and drying kinetics during microwave dewatering of deep-sea polymetallic nodules

Chemical Engineering Journal Advances
Deep-sea polymetallic nodules are receiving increasing attention as a potential source of several valuable metals including nickel, cobalt, copper, manganese, and iron.
O. Marzoughi, R. Verge, S. Annan, R.M. Hutcheon, J. Donald, C.A. Pickles   +5 more
doaj   +1 more source

Hydrothermal Manganese‐Oxide Mineralization of a Carbonate Ooze, Samoan Hotspot Region, South Pacific Ocean

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 8, August 2026.
Abstract Low‐temperature hydrothermal manganese oxides occur throughout the global oceans. However, the hydrothermal replacement of a carbonate ooze by manganese oxides is described here for the first time. The 24 samples dredged from three locations around the Territory of American Samoa in the South Pacific Ocean include six samples with remnant ...
James R. Hein, Amy Gartman, Kira Mizell, Mark Baskaran, Anthony Koppers, Hubert Staudigel   +5 more
wiley   +1 more source

Feasibility study on manganese nodules recovery in the Clarion-Clipperton Zone

, 2012
The sea occupies three quarters of the area on the earth and provides various kinds of resources to mankind in the form of minerals, food, medicines and even energy.
Zhou, Jenny Jin, Placidi, Marco, Santo, Harrif, Agarwal, Baivau, Hu, Pan   +4 more
core   +1 more source

Mars Alteration on Earth: A Spectroscopic Study of Hydrated Silica and Biomarker Preservation in La Palma Lava Tubes

Journal of Geophysical Research: Planets, Volume 131, Issue 8, August 2026.
Abstract Volcanic tubes provide stable environments where unique mineralogical assemblages can form and be preserved, making them valuable terrestrial analogs for Martian studies. This work investigates tree‐like structures within two lava tubes on La Palma Island (Canary Islands, Spain) through a comprehensive geochemical and mineralogical ...
F. Alberquilla, J. Aramendia, I. Martínez‐Arkarazo, G. Gorla, L. Coloma, G. Arana, A. Gonzalez, R. Gisbert, P. Cobiella, M. Perestelo, J. M. Madariaga   +10 more
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

Abundant interactions and feedbacks between aquatic deoxygenation and the other planetary boundaries suggest “unsafe” levels of oxygen loss with far‐reaching impacts

Limnology and Oceanography, Volume 71, Issue 7, July 2026.
Abstract Oxygen is critical for nearly all life on Earth, including aquatic species that breathe dissolved oxygen in both freshwater and marine systems. The rapid, global, and anthropogenic loss of dissolved oxygen known as “aquatic deoxygenation” threatens life in these environments, the human communities that depend on them, and Earth system ...
Erica M. Ferrer, Yassir A. Eddebbar, Shailja Gangrade, Lillian R. McCormick, Ariel K. Pezner, De'Marcus Robinson, Véronique Garçon, Kevin C. Rose, Lisa A. Levin   +8 more
wiley   +1 more source

Unlocking Europe's resources: the strategic potential of IOM deep sea polymetallic nodules for critical metals supply

Economics and Environment
The purpose of the paper is to investigate the potential of seabed polymetallic nodules in the Clarion-Clipperton Zone (CCZ) as a sustainable source of critical metals such as rare earth elements (REEs), cobalt, manganese, lithium and scandium.
Peter Baláž, Tomasz Abramowski, Eva Kristianová, Kamila Mianowicz, Guido Guerrero, Artur Krawcewicz   +5 more
doaj   +1 more source

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

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   +1 more source

Deep Cyclones and Benthic Storms in the Western North Atlantic: New Insights From a Regional Circulation Model

Journal of Geophysical Research: Oceans, Volume 131, Issue 5, May 2026.
Abstract Deep cyclones (DCs) are mesoscale, deep‐reaching features that develop near meander troughs of large‐scale currents, such as the Gulf Stream. Although, in some aspects, they could be viewed as oceanic analogs of synoptic‐scale cyclones in the mid‐latitude atmosphere, their dynamics and impacts are not fully understood.
Si‐Yuan Sean Chen, Olivier Marchal, Magdalena Andres, Wilford Gardner, Jiayan Yang, Thomas Peacock   +5 more
wiley   +1 more source

Characterization of Fines Produced by Degradation of Polymetallic Nodules from the Clarion–Clipperton Zone

, 2021
The discharge of fluid–particle mixture tailings can cause serious disturbance to the marine environment in deep-sea mining of polymetallic nodules. Unrecovered nodule fines are one of the key components of the tailings, but little information has been ...
Hyeong, Kiseong, Lee, Ji Yeong, Yoo, Chan Min, Seo, Inah, Kiseong Hyeong, Kim, Mun Gi, Inah Seo, Ji Yeong Lee, Mun Gi Kim, Chan Min Yoo   +9 more
core   +1 more source