Results 21 to 30 of about 102,399 (167)

ON THE NATURE OF OXIDE FERROMANGANESE ORES OCEAN

Известия высших учебных заведений: Геология и разведка, 2018
Oxide ores of the global ocean — cobalt-rich crusts and ferromanganese nodules are of bacterial origin and identified as  stromatolites and onkolites. Pillar structure of ferromanganese  stromatolites and festoon-shaped structures of onkolites represent 
V. V. AVDONIN, E. A. ZHEGALLO, N. E. SERGEEVA   +2 more
doaj   +1 more source

Reconstruction of the Paleo‐Ocean Environment Using Mineralogical and Geochemical Analyses of Mixed‐Type Ferromanganese Nodules From the Tabletop of Western Pacific Magellan Seamount

Geochemistry, Geophysics, Geosystems, 2023
Variations in the geochemistry and mineralogical compositions of ferromanganese (Fe‐Mn) nodules are closely related to variations in environmental parameters. Therefore, analysis of Fe‐Mn nodules can reconstruct the paleo‐ocean environment.
Jinsub Park, Jaewoo Jung, Youngtak Ko, Yongmoon Lee, Kiho Yang   +4 more
doaj   +1 more source

DEVELOPMENT OF A SCHEME FOR A CHAIN OF DEVISES FOR GAS EMISSIONS CLEANING FROM METALLURGICAL PLANTS USING AN APPARATUS WITH A VIBROBOILING BED OF FERROMANGANESE NODULES

International Journal of Advanced Studies, 2022
In the analysis of the components of gas emissions from metallurgical industries, it is generally accepted that sulphur dioxide is the most harmful to the surrounding ecosystem, and its capture is a pressing problem.
Grigoriy I. Sverdlik, Alexander S. Viskrebenets, Alexey A. Revo   +2 more
doaj   +1 more source

The Tubotomaculum Enigma and the Rise of Benthic Life During the Opening of the Western Mediterranean Basin. [PDF]

Geobiology
ABSTRACT Large‐scale geological processes shape microbial habitats and drive the evolution of life on Earth. During the Oligocene, convergence between Africa and Europe led to the opening of the Western Mediterranean Basin, a deep‐ocean system characterized by fluid venting, oxygen depletion, and the absence of benthic fauna.
Bernardini S, Abbassi A, Cipollari P, Ventura GD, Saiz-Jimenez C, Mugnaioli E, Jovane L, Sodo A, Bellatreccia F, Zaghloul MN, Cosentino D.   +10 more
europepmc   +2 more sources

Mineral composition of ferromanganese nodules from the Pacific Ocean

, 2022
The manganese minerals constitutive of ferromanganese nodules retrieved during cruises of the R/V Vityaz wer determined by X-ray diffraction. The analyses were made of well crystallized microscopic areas and several X-ray analyses were made for each ...
Bazilevskaya, Elena S, Skornyakova, Nadezhda S, Gordeev, Viacheslav V   +2 more
core   +1 more source

Direct Catalytic Reduction of SO2 by CH4 over Fe-Mn Catalysts Prepared by Granulation of Ferromanganese Nodules

Eurasian Chemico-Technological Journal, 2015
The chemical, textural, structural and strength properties of ferromanganese nodules and granulated Fe-Mn catalysts containing such nodules were studied.
N. K. Shikina, S. R. Khairulin, S. A. Yashnik, T. N. Teryaeva, Z. R. Ismagilov   +4 more
doaj   +1 more source

Ecological and Economic Prerequisites for the Extraction of Solid Minerals from the Bottom of the Arctic Seas

E3S Web of Conferences, 2017
The world ocean has huge reserves of minerals that are contained directly in the water, as well as on the surface of its bottom and in its subsoils. The deposits of solid minerals on the surface of the bottom of the World Ocean are considered the most ...
Myaskov Alexander, Gonchar Alexander
doaj   +1 more source

Microbial Communities of Ferromanganese Sedimentary Layers and Nodules of Lake Baikal (Bolshoy Ushkany Island)

Diversity, 2022
Ferromanganese (Fe-Mn) sedimentary layers and nodules occur at different depths within sediments at deep basins and ridges of Lake Baikal. We studied Fe-Mn nodules and host sediments recovered at the slope of Bolshoy Ushkany Island.
Tamara Zemskaya, Natalia Konstantinova, Olga Shubenkova, Tatyana Pogodaeva, Vyacheslav Ivanov, Sergei Bukin, Andrey Khabuev, Oleg Khlystov, Grigory Vilkin, Anna Lomakina   +9 more
doaj   +1 more source

Mineralogical and geochemical investigations on Finnish lake ores [PDF]

Bulletin of the Geological Society of Finland, 1976
The limnic ferromanganese ore concretions in some Finnish lakes are described. Their chemical and mineral compositions have been measured as have their natural surroundings — the latter by means of physico-chemical in-situ analysis.
P. Halbach
doaj   +1 more source

Chemical composition of ferromanganese nodules from the Phillipine Sea

, 2023
During the GDP-8 cruise of R/V Bosei-Maru, scientists from the Tokai University surveyed the Kinan seamount chain and the Kyushu-Palau Ridge in the Phillippine Sea.
Usui, Akira
core   +1 more source