Browsing Геология России by Subject "Garnet"
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Browsing Геология России by Subject "Garnet"
Now showing items 1-17 of 17
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(2004)The site location and local geometry of trace amounts (299 ppm) of dysprosium in a natural melanite garnet from a carbonatitic rock have been studied by high-energy fluorescence-detected X-ray absorption fine-structure ...
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(PANGAEA, 1984-03-27)Structure and composition of sub-surface bottom sediments from the southwest Barents Sea have been under study. The study has revealed heterogeneity of sediment structure resulted from temporal irregularity and variability ...
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(2004)Cathodoluminescence (CL) imaging of polished sections of a diamond from the Guaniamo region of Venezuela suggests a history of the diamond involving two periods of growth separated by a period of resorption and possibly ...
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(PANGAEA, 1999-11-15)
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(2005)Garnet-facies continental mantle is poorly understood because the vast majority of mantle xenoliths in continental basalts are spinel peridotite. Peridotite xenoliths from Vitim (southern Siberia) and Mongolia provide some ...
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(PANGAEA, 2003-11-10)
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(PANGAEA, 2004-06-16)
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(PANGAEA, 1999-11-16)
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(2004)Garnet–biotite and garnet–cordierite geothermometers have been consistently calibrated, using the results of Fe2+–Mg cation exchange experiments and utilizing recently evaluated nonideal mixing properties of garnet. Nonideal ...
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(2003)This study assesses temperatures of formation of common granulites by combining experimental constraints on the P–T stability of granulite-facies mineral associations with a garnet–orthopyroxene (Grt–Opx) thermobarometry ...
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(2003)The three binary garnet solid solutions FeII3Al2Si3O12–XII3Al2Si3O12 (XII = MgII, MnII, CaII) have been investigated by 57^Fe Mssbauer spectroscopy at 298 and 77 K and by electronic structure calculations in the local spin ...
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(2004)On a global scale, peridotitic garnet inclusions in diamonds from the subcratonic lithosphere indicate an evolution from strongly sinusoidal REEN, typical for harzburgitic garnets, to mildly sinusoidal or “normal” patterns ...
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(2003)We have performed atomistic computer simulations on trace element incorporation into the divalent dodecahedral X-sites of pyrope (Py — Mg3Al2Si3O12) – grossular (Gr — Ca3Al2Si3O12) solid solutions. An ionic model and the ...
Now showing items 1-17 of 17