Trace and rare earth elements
Geochemistry of Major, Trace, and Rare Earth Elements in Biglar Permo-Triassic Bauxite Deposit, Northwest of Abgarm, Ghazvin Province, Iran
... of elements indicate that Si, and Ba were depleted during bauxitization and Al, Ti, Zr, Nb, Hf, Ga, U, Th, V, and Cr were ...of trace and rare earth ...for rare earth ...
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Geochemical Behavior of Trace and Rare Earth Elements in the Hydrothermal Alteration Facies of the Cijulang Area, West Java, Indonesia
... of trace- and rare-earth elements (REE) in different hydrothermal alteration facies (silicic, advanced argillic and argillic) of Cijulang high-sulfidation epithermal gold deposit, West Java, ...
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Trace and Rare Earth Elements Petrochemical Constraint on Tectonogenetic Evolution of the Granitoids of Zing-Monkin area, Adamawa Massif, N.E. Nigeria
... pegmatites. Trace element contents of the granitoids decrease from granodiorite to the granites except Rb which behave in an opposite ...normalised rare earth elements trends indicate strongly ...
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Trace And Rare Earth Elements Enriched Carbonatite Rocks Of Pakkanadu Alkaline Complex, South India
... incompatible trace element concentrations show a general increasing trend: alkaline silicate rock < calcite carbonatite < ...various trace elements clearly show that the calcite carbonatite and ...
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Small scale heterogeneity of trace metals including rare earth elements and yttrium in deep sea sediments and porewaters of the Peru Basin, southeastern equatorial Pacific
... investigated trace metal distributions in the solid phase and corresponding porewater to distinguish patterns and exceptions with respect to sed- iment layers, impacts of bathymetry, and early diagenetic ...
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Heavy Minerals and Geochemical Characteristics of Sandstones as Indices of Provenance and Source Area Tectonics of the Ogwashi Asaba Formation, Niger Delta Basin
... and trace/rare earth elements (Sc, Be, V, Sr, Y, Zr, and Ba) concentrations were deter- mined by Fusion Inductively Coupled Plasma (FUS-ICP) with a detection limit of ...Other trace and ...
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Geochemical Discriminant for Provenance Characterization and Palaeogeography of Shales from Dahomey Embayment, Southwestern Nigeria
... [major, trace and Rare Earth Elements (REE)] of Cretaceous- Tertiary shales from Gbekebo-1 well were used to characterize provenance, paleogeography, source area weathering and tectonic ...
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Human health and environmental assessments of small-scale and artisanal mining activities in the Gold City of Ijeshaland, Southwestern Nigeria
... Background: This study assessed the health and environmental impacts of artisanal gold mining in Ijesha-land, Osun State, Southwestern Nigeria. Fifty-four environmental samples were collected between 2011 and 2012 and ...
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The Enrichment Mechanism Of Rare Earth Elements In Weathered Granitoids, Tin Placer And Bauxite Laterite
... lithophile trace elements was governed by how easily ion substitution occur in the crystal ...of elements and mostly accumulated in deeper depth above the parent ...
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Rare Earth Elements to identify archaeological strata in the Cocina Cave
... of trace amounts of 7 elements (Au, Ag, Pd, Pt, Ir, Rh and Os) from environmental water ...of elements by using this new absorbent and a multimode sample introduction system ...1643e, trace ...
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Analysis of Different Rare Metals, Rare Earth Elements, and other Common Metals in Groundwater of South West Bank/Palestine by ICP/MS Data and Health Aspects
... different rare elements (Rb, Zr, U, P, Ti, V), rare earth elements (La, Ce, and Nd), and other common trace metals (Li, Na, Mg, Ca, Sr, Ba, K, Bi) that most of them usually have ...
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Petrochemistry And P-T Condition Of Amphibolites Associated With Pegmatites Of Holenarasipura And Karighatta Schist Belts Of Western Dharwar Craton, Karnataka, India.
... and trace elements chemistry, including rare earth elements with flat pattern having slightly decreasing pattern from LREE toward HREE with small negative Eu- anomaly, suggested that ...
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Rare earth elements in olivine:determination, occurrence and behaviour
... of trace elements, and in particular the rare earth elements (REE), in olivine are lagging behind those of phases such as garnet and ...these elements (Sun and Liang, ...
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Rare earth elements in Australian sediments
... (Condie, 1967; Schnetzler and Philpotts, 1967; Wildeman and Haskin, 1973; Wildeman and Condie, 1973). The "steady state" model of Armstrong (1968) and Armstrong and Hein (1973), which invokes continuous exchange ...
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A Study on Impact of Rare Earth Elements and Bacteria in Growth of Wheat (Triticum aestivum)
... The soil samples were collected from rare earth environments and analyzed by ICP-MS to know constituents of the rare earth elements. Cerium and Neodymium are abundant in the analyzed ...
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Development of Mg Based Amorphous Alloys with Higher Amounts of Rare Earth Elements
... (1) The binary eutectic-pairs and the e=a-invariant criteria are applied to the Mg-Cu-Gd based amorphous alloys. The experimental results are partly consistent with the predictions, but the models would fail when an ...
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Rare-Earth Elements in the Nechalacho Deposit, NWT: Hydrothermal Controls on Mineralogy and Fractionation
... Within the magnetite-biotite-quartz alteration event not all of the rare-metal minerals formed at the same time. When the eudialyte was altered, it appears that zircon and columnar monazite-(Ce) were the first ...
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The use of chelating agents in the separation of the rare earth elements by ion exchange methods
... Experimental Procedures and Results Determination of the acid association constants of HEDTA As was pointed out earlier, a knowl3dg e of the acid association constants of a chelating age[r] ...
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Absence of molybdenum isotope fractionation during magmatic differentiation at Hekla volcano, Iceland
... middle rare earth ele- ments, Ce, Nd, and Pr, based on the constancy of the Mo/Ce, Mo/Nd, Mo/Pr ratios observed in various terres- trial samples (Sims et ...Both elements remain incom- patible (bulk ...
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Method of forming magnetostrictive rods from rare earth iron alloys
... with rare earth elements are formed by flowing a body of rare earth- iron alloy in a crucible enclosed in a chamber maintained under an inert gas atmosphere, forcing such molten ...
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