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Now showing items 16182-16201 of 39124
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(1995)We have measured amphibole-melt and phlogopite-melt partition coefficients (D) for 22 trace elements in experimentally crystallized natural basanites with the ion microprobe. The synthesized phases display an exceptional ...
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(2003)Baddeleyite (ZrO2) is an accessory phase in a wide range of rocks ranging from kimberlites to carbonatites. Despite an increasing interest in baddeleyite especially in the fields of geochronology and petrology, there is, ...
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(1999)Partition coefficients for Rb, Sr, Sm, Nd, U, Th, Pb, La, Ce, Ba, Nb, and Li between phlogopite, clinopyroxene and melt were determined in order to characterize the effect of metasomatically grown minerals on the isotopic ...
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(2000)We present results from an ion microprobe study of REE-doped and natural concentration plagioclase-basalt run products of Drake (1972) that carries on from our earlier study (Bindeman et al., 1998). The goals of this work ...
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(2006)Compilation and interpretation of experimental and natural Nernst partition coefficient (plagioclase/meltD) data show that, with a few exceptions, increases in plagioclase/meltD correlate with decreasing anorthite-content ...
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(1997)Dehydration experiments on natural amphibolite have been carried out under upper mantle P/T conditions, in order to examine transportation of trace elements during dehydration processes in the subducted oceanic lithosphere. ...
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(1997)The trace elements and Sr-Nd-Pb isotope compositions of arc magmas have been calculated from our estimates of: (1) the chemical composition of aqueous fluids emanating from the subducting basaltic oceanic crust, based on ...
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(1998)Sedimentary organic matter deriving from tubes of sabelliditids, vendotaenids, sapropelic films and kerogens was extracted by acid processing from Upper Vendian siliciclastic successions in the East European Platform. ...
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(1999)Anorthite megacrysts from twelve volcanic centers of the Kurile Island Arc were analyzed by the ion microprobe for concentrations of: Li, Be, B, F, Mg, P, Cl, K, Ti, Fe, Co, Rb, Sr, Y, Zr, Nb, Cs, Ba, La, Ce, Pr, Nd, Sm, ...
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(1994)We report trace element data for rare garnet and clinopyroxene inclusions trapped within diamonds occurring in eclogite xenoliths from the Siberian craton. These inclusions are more depleted in incompatible trace elements ...
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(2002)The biomineral component of bones and teeth is synthesized within the body, under direct physiological control, and therefore the chemistry of bone (including the trace element chemistry) reflects aspects of the animal’s ...
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(PANGAEA, 1971-03-16)The study of vertical distribution of Mo, V, Co, Ni, and Cu in mass of Black Sea sediments showed that maximum concentrations occur in sapropelic muds of ancient Black Sea deposits. A special study of sapropels samples ...
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(PANGAEA, 1987-06-18)
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(1996)Sulfide inclusions in diamonds may provide the only pristine samples of mantle sulfides, and they carry important information on the distribution and abundances of chalcophile elements in the deep lithosphere. Trace-element ...
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(1996)A small suite of trace fossils from the Zavkhan Basin (Govi-Altay) includes many of the ichnotaxa typical of the Nemakit-Daldynian, Tommotian and younger Cambrian stages, and other indeterminate forms. The traces are almost ...
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(2003)Organism-built structures have long been useful artifacts for students of evolution and systematics, because they represent a permanent record of a set of behaviors. These structures also represent an investment of energy ...
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(2003)The trace hydrogen content of a colourless to light-green zoned diopside single-crystal from Zillertal was investigated by IR microspectroscopy. The light-green part of the crystal reveals pleochroic OH absorption bands ...
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(2001)Measurements of dissolved and leachable particulate trace metals (Mn, Fe, Co, Pb, Cd, Zn, Cu and Ni) and total particulate Mn and Fe were made on seawater samples collected from the northwestern Black Sea during the EROS ...
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(2005)Varved (annually-laminated) sediments offer a rare and physically undisturbed archive of past trace metal deposition and limnological conditions. Here, a high-resolution 1,300 year record of metal accumulation is presented ...
Now showing items 16182-16201 of 39124