Results 51 to 60 of about 391 (168)

Benthic and Demersal Scavenger Biodiversity in the Eastern End of the Clarion-Clipperton Zone – An Area Marked for Polymetallic Nodule Mining

Frontiers in Marine Science, 2020
In the Clarion-Clipperton Zone (CCZ) in the north-eastern Pacific Ocean ca. 30 billion tonnes of polymetallic nodules, rich in metals critical for frontier technologies, lay on the sediment surface over an area of 4–5 million square kilometres.
Rob P. Harbour, Astrid B. Leitner, Carsten Ruehlemann, Annemiek Vink, Andrew K. Sweetman   +4 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

Subsea Nodule Recognition and Deployment Detection Method Based on Improved YOLOv8s

IEEE Access
An improved small-target detection model based on YOLOv8s is proposed to address the challenges associated with deep-sea polymetallic nodule detection, such as complex target shapes, small sizes, and strong environmental interference.
Jixin Li, Junchao Li, Bin Su, Yuxin Cui
doaj   +1 more source

DEEP SEA GEOMET: POLYMETALLIC NODULE GEOCHEMISTRY AND MINERALOGY FOR SUSTAINABLE SEAFLOOR MINING

, 2022
196 pages ; Deep sea mining of polymetallic nodules in the Clarion Clipperton Zone (CCZ) is a method for sourcing critical minerals for renewable energy and battery technologies. In this study, seafloor nodules from the CCZ were analyzed using μ-XRF, p-XRF, X- CT, and whole rock geochemistry.
openaire   +2 more sources

Giant, highly diverse protists in the abyssal Pacific: vulnerability to impacts from seabed mining and potential for recovery

Communicative & Integrative Biology, 2020
Xenophyophores, giant deep-sea agglutinated foraminifera, dominate the benthic megafauna in the eastern equatorial Pacific Clarion-Clipperton Zone. This abyssal (>4000 m depth) region hosts major deposits of polymetallic nodules targeted for future ...
Andrew J. Gooday, Jennifer M. Durden, Craig R. Smith   +2 more
doaj   +1 more source

Quantification of rheological parameters in deep‐sea mining plumes

Deep Underground Science and Engineering, Volume 5, Issue 1, Page 250-265, March 2026.
This study explores the variations in rheological properties observed during the propagation of deep‐sea mining plumes, utilizing rheological test data obtained from kaolin clay plumes. Subsequently, taking into account the differences in sediment properties, the effects of clay content and clay mineral composition on the rheological parameters of ...
Xiaolei Liu, Yihan Liu, Yonggang Jia, Xingsen Guo   +3 more
wiley   +1 more source

Numerical simulations and large-scale experimental research into air-lifting system for deep-sea mining

International Journal of Naval Architecture and Ocean Engineering
The deep seabed harbors abundant mineral resources. To achieve the economic viability of deep-sea mining, the efficiency of polymetallic nodule lifting is critical.
JianYu Xiao, Zhuang Kang, Jing Leng, Ming Chen, Jun Liu   +4 more
doaj   +1 more source

Molecular Cages Based Materials for CO2 Capture, Separation, and Conversion

EcoMat, Volume 8, Issue 2, February 2026.
Molecular cages (MCs), boasting soluble, regenerable traits and precisely tunable structures, exhibit substantial potential for efficient CO2 capture, separation, and conversion. This review thoroughly explores MCs' recent advancements, analyzes current unresolved challenges, and provides forward‐looking perspectives to tackle pressing carbon‐related ...
Ding Zou, Bin Ai, Yanni Zhang, Xiaoyu Cao, Hongyu Zhen   +4 more
wiley   +1 more source

From Quarries to Urban Construction Sites: Middle‐Late Mesozoic Limestones in the Public Architecture of Roman Verona, Italy

Geoarchaeology, Volume 41, Issue 1, January/February 2026.
ABSTRACT Numerous buildings, monuments, and infrastructural works in Verona were constructed during the Roman period using stone, a material abundantly available from quarrying areas located relatively close to the city. Petrographic investigations conducted by Transmitted Polarized Light Optical Microscopy (TPL‐OM) and complemented by colorimetric ...
Eliana Bridi, Simone Dilaria, Jacopo Bonetto, Caterina Previato   +3 more
wiley   +1 more source

Numerical Simulation on Hybrid Lifting Operation of Polymetallic Nodules and Rare-Earth Elements-Rich Mud by Air-Lift Pump in Deep Sea around Minamitorishima Island

Journal of Marine Science and Engineering
Polymetallic nodules and REE-rich mud under the seabed of 5500–5700 m water depth around Minamitorishima island are promising and attractive for exploration and development.
Yoshiyuki Shimizu, Masatoshi Sugihara, Koichiro Fujinaga, Kentaro Nakamura, Yasuhiro Kato   +4 more
doaj   +1 more source