Pink colour indicates deepest (> 4500m) region and red colour indicates shallowest (< 1700m) region. Arrow on the lower panel indicates north specific only to the lower panel. - "Platinum group elements and gold in ferromanganese crusts from Afanasiy-Nikitin seamount, equatorial Indian Ocean: Sources and fractionation"
Abstract—Hydrogenetic Fe-Mn crusts in the ocean are enriched in platinum but do not accumulate palladium. The mechanism of platinum input into the crusts remains debatable. There is even less data on ruthenium and iridium. In this article, the distribution of platinum group elements (Pd, Ru, Ir, Pt) in ferromanganese crusts of the Detroit guyot (Northwest …
Abstract The behavior of platinum group elements (PGE = Pt, Pd, Ru, Ir) in separate layers of ferromanganese crusts of the Atlantic Ocean is considered. The studied crusts, in addition to the hydrogenous source of the matter (crusts from the Bathymetrists Seamounts), formed under the variable influence of hydrothermal (MAR, station 2176) and halmyrolytic sources of matter …
Platinum group elements (PGE) have been relatively little studied in ferromanganese crusts. Only a few publications devoted to oceanic ferromanganese sediments include data on the PGE contents, while their distribution in crusts and nodules still needs to be systematized. In the ocean, PGE are fractionated by differences in oxidation states [ 38 ].
Platinum group elements and gold in ferromanganese crusts from Afanasiy-Nikitin seamount, equatorial Indian Ocean: Sources and fractionation dc.contributor.author Banakar, V.K.
The platinum-group metals (abbreviated as the PGMs; alternatively, the platinoids, platinides, platidises, platinum group, platinum metals, platinum family or platinum-group elements (PGEs)) are six noble, precious metallic elements clustered together in the periodic table.These elements are all transition metals in the d-block (groups 8, 9, and 10, periods 5 and 6).
Platinum Group Crusts. Deepsea FeMn Crusts from the Northeast Atlantic. · Platinum-group element contents analyzed for five samples showed Pt contents from 153 to 512 ppb. The resource potential of Fe-Mn crusts within and adjacent to the Portuguese Exclusive Economic Zone EEZ is evaluated to be comparable to that of crusts in the ...
Platinum Auto Trends Inc (PAT) is an independent importer and distributor of OE collision parts for Korean and Japanese vehicles in USA. Our mission at PAT is to provide customers the highest quality parts while minimizing the time taken between placing an order and installation. All PAT parts are thoroughly inspected prior to leaving our ...
Platinum group elements (PGE: Ru, Rh, Pd, Os Ir, Pt) are rare metals with low abundance in the continental crust. The elements of the palladium subgroup of PGE (PPGE: Pt, Pd, Rh) have been exploited more and more over the last thirty years for their physicochemical properties such as high melting point, high resistance to corrosion, mechanical strength and ductility.
The platinum group elements (PGE: Ir, Ru, Rh, Pt, and Pd) and Au in ANS Fe-Mn crusts are derived from seawater and are mainly of terrestrial origin, with a minor cosmogenic component. The Ru/Rh (0.5–2) and Pt/Ru ratios (7–28) are closely comparable to ratios in continental basalts, whereas Pd/Ir ratios exhibit values (<2) similar to CI ...
The major element relationships in ferromanganese (Fe-Mn) crusts from Afanasiy-Nikitin seamount (ANS), eastern equatorial Indian Ocean, appear to be atypical. High positive correlations (r = 0.99) between Mn/Co and Fe/Co ratios, and lack of correlation of those ratios with Co, Ce, and Ce/Co, indicate that the ANS Fe-Mn crusts are distinct from Pacific …
Platinum Healthcare Staffing – Platinum Healthcare Staffing. 2430 Amsler St. Suite B, Torrance, CA 90505.
Platinum group elements and gold in ferromanganese crusts from Afanasiy-Nikitin seamount, equatorial Indian Ocean: Sources and fractionation View/ …
The platinum group metals (PGMs) are among the rarest mineral commodities in Earth's crust. They include iridium, osmium, palladium, platinum, rhodium and ruthenium. The PGMs occur together in nature, closely …
The Latest from Platinum Group. Aug / 08 / 2022. Events to watch out for in Kansas. There's no place like Kansas. This Midwestern state along Interstate 70 and Interstate 35 is filled with rolling wheat fields, welcoming residents, and an abundance of activities. Kansas may be comp. Read More >>. Aug / 08 / 2022.
Ce, and Ce/Co, indicate that the ANS Fe–Mn crusts are distinct from Pacific seamount Fe–Mn crusts, and reflect region-specific chemical characteristics. The platinum group elements (PGE: Ir, Ru, Rh, Pt, and Pd) and Au in ANS Fe–Mn crusts are derived from seawater and are mainly of terrestrial origin, with a minor cosmogenic component.
Platinum-Group Elements—So Many Excellent Properties. The PGE could play a crucial role in fuel cell technology, which could revolutionize clean energy production for . ... PGE are among the rarest metals on earth; the upper crust of the Earth contains about 0.0005 parts per . million (ppm) platinum. Today, the average grade of PGE in ores ...
in general, pgm ores are concentrates in the crust found in two different ways, by leaching the metal-rich lava (mantle) deposited into the crust, which is known as chemical weathering, especially in a hot climate where silica and magnesia are leached away, and melting a portion of the mantle, giving rise to ultramafic or basalic lava, which is …
The most likely mechanism of Platinum Group Elements (PGE) accumulation can be sorption and oxidation on δ-MnO 2 surfaces. The obtained platinum fluxes to ferromanganese crusts and to nodules are close and vary from 35 to 65 ng∙cm −2 ∙Ma −1. Palladium and gold do not accumulate in hydrogenous ferromanganese deposits relative to the Earth's crust.
Distribution of platinum group elements (Ru, Pd, Pt, and Ir) and gold in hydrogenous ferromanganese deposits from the southern part of the Atlantic Ocean has been studied. The presented samples were the surface and buried Fe–Mn hydrogenous nodules, biomorphous nodules containing predatory fish teeth in their nuclei, and crusts. Platinum …
OCEANOLOGY Vol. 61 No. 3 2021 PLATINUM GROUP ELEMENTS IN FERROMANGANESE CRUSTS 391 In a layer-by-layer study of hydrogenous ferroman-ganese crusts, the enrichment of individual layers in
The major element relationships in ferromanganese (Fe-Mn) crusts from Afanasiy-Nikitin seamount (ANS), eastern equatorial Indian Ocean, appear to be atypical. High positive correlations (r = 0.99) between Mn/Co and Fe/Co ratios, and lack of correlation of those ratios with Co, Ce, and Ce/Co, indicate that the ANS Fe-Mn crusts are distinct from Pacific …
The platinum-group elements (PGEs)—platinum, palladium, rhodium, ruthenium, iridium, and osmium—are metals that have similar physical and chemical properties and tend to occur together in nature. PGEs are indispensable to many industrial applications but are mined in only a few places.
The platinum group metals (PGMs) are among the rarest mineral commodities in Earth's crust. They include iridium, osmium, palladium, platinum, rhodium and ruthenium. The PGMs occur together in nature, closely associated with nickel and copper, primarily in two major types of ore deposits. One deposit type is in distinct horizons within large ...
The platinum group elements (PGE: Ir, Ru, Rh, Pt, and Pd) and Au in ANS Fe–Mn crusts are derived from seawater and are mainly of terrestrial origin, with a minor cosmogenic component. The Ru/Rh (0.5–2) and Pt/Ru ratios (7–28) are closely comparable to ratios in continental basalts, whereas Pd/Ir ratios exhibit values ( 2) similar to CI ...
The Platinum Group Metals (PGMs) are made up platinum (Pt), palladium (Pd), rhodium (Rh), iridium (Ir), ruthenium (Ru) and osmium (Os). These metals are desirable in the marketplace due to their value to the …
Platinum concentrations in the studied crusts vary from 106 ng/g (2176-A) to 569 ng/g (2179-B). In all studied crusts, the platinum content increases from top to bottom. Iridium behaves similarly, although its content in the crusts is …
PDF | The behavior of platinum group elements (PGE = Pt, Pd, Ru, Ir) in separate layers of ferromanganese crusts of the Atlantic Ocean is considered.... | Find, read and cite all the research you ...
Platinum group elements (Os, Ir, Ru, Pt and Pd) were found to be immobile during seafloor alteration and upper greenschist facies metamorphism of the Kostomuksha komatiites and basalts. 2. During high-degree partial melting, Os and Ir are compatible and mostly retained in the mantle residue.
Table 1. Major element, PGE–Au and cobalt normalized element ratio of Afanasiy–Nikitin seamount Fe–Mn crusts compared with potential source material. - "Platinum group elements and gold in ferromanganese crusts from Afanasiy-Nikitin seamount, equatorial Indian Ocean: Sources and fractionation"
CC, continental crust, MORB, mid-ocean ridge basalt, PUM, primitive upper mantle, UCC, upper continental crust. (B) Platinum-group element plus Au signature of the S4, Paraburdoo, and Reivilo layers, chondrite normalized. All display a relatively flat pattern with depletion in Pd. (C) Trace and rare earth element spidergram of the Kuruman and ...