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  • Rhenium–osmium systematics of .

    fractionations in early solar-system condensates require effec- ... according to their rare earth element (REE) patterns. REE patterns in

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  • Origin of enriched ocean ridge basalts and .

    Origin of enriched ocean ridge basalts and implications for mantle dynamics ... Near chondritic heavy rare-earth element (HREE ... fractionations such as Th ...

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  • rare earth elements air classifiers

    It is relatively stable in air, ... which is one of the most volatile rare-earth elements. Samarium exists in three allotropic (structural) forms.

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  • NEODYMIUM

    Neodymium and praseodymium are referred to as the elemental twins, as they were difficult to separate and possess a multitude of special properties.

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  • Fractionations of rare earth elements in plants and their ...

    Fractionations of rare earth elements (REEs) and their mechanisms in soybean were studied through application of exogenous mixed REEs under hydroponic conditions.

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  • PROCESS FOR FRACTIONATING A MIXTURE OF RARE EARTH METALS ...

    Oct 16, 1991· Abstract of EP0335538 A continuous process for partially or completely fractionating a mixture of rare earth metals by ion exchange is ...

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  • Geochemical fractionation of rare earth elements in ...

    Shell Bar section from Qaidam Basin, we studied the geochemical fractionations of REE in paleolake ... rare earth elements analysis, strontium isotopes, trace

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  • (CAS IR GRID): A review of fractionations .

    Studies were carried out on several aspects of rare earth elements ... A review of fractionations of rare earth elements in plants, Journal of Rare Earths,2008, 26( 1 ...

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  • Fractionations of rare earth elements in plants and their ...

    Fractionations of rare earth elements (REEs) and their mechanisms in soybean were studied through application of exogenous mixed REEs under hydroponic conditions.

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  • Rare 2.5-billion-year-old rocks reveal hot spot of sulfur ...

    Rare 2.5-billion-year-old rocks reveal hot spot of sulfur-breathing bacteria ... rare evidence of conditions on Earth 2.5 ... fractionations associated ...

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  • Geochemical distribution of the elements

    Clarke's name will always be linked with the study of the geochemical distribution of the elements ... fractionations of ... in the rare-earth ...

    Rethinking early atmospheric oxygen: Possibility of .

    Rethinking early atmospheric oxygen: Possibility of more ... anomalous fractionations in rare ... cycle on early Earth than previously supposed." ScienceDaily.

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  • Pacaya. Volcanoes and volcanology | Geology

    Geographic variation o f rare earth fractionations in plutonic rocks across the peninsular ran ges batholith, southern california . research-volcanology

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  • Controls of interactions between iron hydroxide colloid ...

    With increasing pH, LREE/HREE fractionations will take place between iron hydroxide colloids and water, ... SCIENCE CHINA Earth Sciences ...

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  • The Characteristics, Occurrence, and Geochemical Behavior ...

    The Characteristics, Occurrence, and Geochemical Behavior of Rare Earth Elements in the Environment: A Review

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  • rare earth fractionations

    Accumulation and fractionation of rare earth elements ... Significant fractionations of REEs were found in wheat organs as compared to the exogenous mixed REEs.

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  • Rare earth element contents of Jurassic fish and reptile ...

    Read "Rare earth element contents of Jurassic fish and reptile teeth and their potential relation to seawater composition (Anglo-Paris Basin, France and England ...

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  • Collisional erosion and the non-chondritic composition .

    These fractionations ... for setting the bulk composition of the terrestrial planets has explicitly excluded any ... such as the rare-earth ...

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  • Ohmoto - UGR

    The currently popular model for the early Earth postulates that ... for equilibrium fractionations in ... Ohmoto, H. (2006) Rare earth elements in ...

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  • Analyzing Solutions High in Total Dissolved Solids .

    The rare earth elements ... These relative fractionations of the REEs have been utilized to diagnose diverse geochemical processes such as groundwater flow ...

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  • Hf-Nd isotope evidence for a transient dynamic regime .

    Modern basalts have seemingly lost all 'memory' of the primitive Earth's mantle except for an ambiguous isotopic signal observed in some rare gases.

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  • Europium - Clarkson Rare Earth

    - Europium is the rarest and most costly of all the rare earth elements. Discovery of Europium. ... Demarçay then made a series of extensive fractionations of an ...

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  • hydrogeochemistry of rare earth elements in an .

    hydrogeochemistry of rare earth elements in an AMd-influenced area ... 1989) fractionations and anomalies among the REE become apparent what makes them suit-

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  • Accumulation and fractionation of rare earth elements ...

    Significant fractionations of REEs were found in wheat organs as compared to the exogenous mixed REEs. Middle REE (MREE, ... The rare earth elements ...

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  • SEPARATION OF VOLATILE RARE EARTH COMPLEXES.

    Attempts to design and construct suitable packed columns for these fractionations did not lead to equipment that was ... SEPARATION OF VOLATILE RARE EARTH ...

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  • rare earth elements yttrium and higher plants rare earth ...

    Rare earth metal resources at ... yttrium; an element that is not a lanthanide but is included with rare earths owing to its similar chemical properties to heavy ...

    Tao Liang

    Tao Liang Institute of Geographic Sciences and Natural Resources Research, ... Fractionations of rare earth elements in plants and their conceptive model.

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  • Mesozoic Plutonism in the Sierra Nevada Batholith

    Both Sm and Nd are rare earth ... Granitic rocks from the Sierra Nevada batholith ... Island arcs have negative eSr and positive eNd values due to the fractionations ...

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  • Accumulation and fractionation of rare earth ... - DeepDyve

    Read "Accumulation and fractionation of rare earth elements in atmospheric particulates around a mine tailing in Baotou, China, Atmospheric Environment" on DeepDyve ...

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  • Geochemistry 3 Geophysics Geosystems - Earth .

    AN ELECTRONIC JOURNAL OF THE EARTH ... indicating that both lithologies can induce similar trace element fractionations ... erentially incorporates heavy rare earth ...

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  • Rare earth element fractionation in authigenic illite ...

    Rare earth element fractionation in authigenic illite-smectite from Late Permian clastic rocks, Bowen Basin, Australia: implications for physico-chemical environments ...

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  • Patent US2955913 - Separation of rare earths by solvent ...

    In order to separate and isolate one certain element of the rare earth group, ... in some instances a number of fractionations will be necessary in order completely ...

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