Results 71 to 80 of about 58,716 (144)

Transition metal and rare earth element fluxes at two sites in the eastern tropical Pacific : relationship to ferromanganese nodule genesis

Transition metal and rare earth element (REE) data are presented for various sedimentary materials from two Manganese Nodule Program (MANOP) sites in the eastern tropical Pacific.
Murphy, Kim Marie
core   +4 more sources

Technology and equipment of deep-sea mining: State of the art and perspectives

Earth Energy Science
Rising demand for minerals and metals in high-tech and new energy industries has led to a great interest in exploration of seabed mineral resources.
Qi Zhang, Xuguang Chen, Lubao Luan, Fei Sha, Xuelin Liu   +4 more
doaj   +1 more source

The hydrothermal component in ferromanganese nodules from the southeast Pacific Ocean [PDF]

, 1989
Statistical analyses of geochemical data from ferromanganese nodule samples representing a broad area of the southeast Pacific Ocean indicate nodule compositions are controlled by four factors: (1) suboxic diagenesis; (2) oxic diagenesis; (3) hydrogenous
Chen, Joy C., Owen, Robert M., Joy C. Chen, Robert M. Owen   +3 more
core   +1 more source

Corrigendum to “Geochemistry of ferromanganese nodules in the soil of Okinawa Island, Japan: Paleoclimatic implications and discrimination scheme of the nodule origins” [J. Asian Earth Sci.: X 8 (2022) 100127]

Journal of Asian Earth Sciences: X, 2023
Keishiro Azami, Kazutaka Yasukawa, Yasuhiro Kato   +2 more
doaj   +1 more source

An improved method of Tl purification for high precision measurement of Tl isotopes by MC-ICP-MS

Solid Earth Sciences
Thallium (Tl) isotopes are valuable geochemical tracers widely applied in planetary evolution, redox history of ancient oceans, pollution source tracing, and crustal recycling. Contemporary Tl isotope analyses generally rely on either the standard-sample
Lei Yan, Yuxiao Chen, Zhuo Lu, Tangfu Xiao   +3 more
doaj   +1 more source

Analysis of manganese nodules of the Scripps collection

, 1976
The Marine Minerals Database contains geochemical analyses and auxiliary information on present-day marine deposits of primarily ferromanganese nodules and crusts. Some data for heavy minerals are also included.
J Z Frazer (6960728), Frazer, Jane Z, Fisk, Mary B, M B Fisk (6962438)   +3 more
core   +1 more source

Mineral resource base of Russia’s cobalt: current state and development prospects

Горные науки и технологии
The relevance of this study stems from the need to obtain a comprehensive picture of the state of the cobalt mineral resource base of the Russian Federation.
G. Yu. Boyarko, L. M. Bolsunovskaya
doaj   +1 more source

Composition of ferromanganese nodules from the Pacific

, 1977
Bulk composition of ferromanganese nodules from the pelagic environment of the Pacific Ocean is apparently related to nodule-growth rate, sediment-accumulation rate, and biologic productivity in the overlying seawater. Nodules with a high Mn/Fe ratio and
David Z Piper (6959162), M E Williamson (6959663), Piper, David Z, Williamson, M E   +3 more
core   +1 more source

Mineral and chemical compositions of a ferromanganese nodule from Station DM41-3911-76

, 2006
Processes of authigenic manganese ore formation in sediments of the North Equatorial Pacific are considered on the basis of a study of the surface layer (
Uspenskaya, Tatyana Y, Dubinin, Alexander V, Alexander V Dubinin (6966845), Tatyana Y Uspenskaya (6964079)   +3 more
core   +1 more source

Observation of manganese deposits in the Clarion-Clipperton Zone, Pacific Ocean by Deep Sea Ventures from the R/V Prospector

, 1976
Deep Sea Ventures Inc. conducted a number of cruises to survey ferromanganese nodule deposits at depths of 4000-5200 meters in the Clarion-Clipperton Fracture Zone of the north-eastern equatorial Pacific Ocean from the R/V ...
Shipboard Scientific Party, Shipboard Scientific Party (6886568)   +1 more
core   +1 more source