Browsing Геология России by Subject "GARNET GROUP"
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Browsing Геология России by Subject "GARNET GROUP"
Now showing items 1-7 of 7
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(2002)The 147Sm-143Nd and 176Lu-176Hf systematics of 21 whole-rock eucrites, including five cumulates, have been investigated by MC-ICP-MS. A statistically significant Sm-Nd isochron was obtained on 18 samples with an age of ...
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(2000)An oxygen barometer has been developed using garnet-epidote equilibria and the latest available thermodynamic data via the reaction:2 Ca2FeAl2Si3O12(OH)=2 Ca2FeAl2Si3O12+H2O+1/2 O2epidote (Ps33Czo67)garnet (Alm33Grs67)fluidwhere ...
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(1999)The commonly used expression of the closure temperature, TC, of a diffusing species in a mineral, as derived by M.H. Dodson [Contrib. Mineral. Petrol. 40 (1973) 259-264], is applicable only to systems which have undergone ...
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(2000)Melting experiments of a representative mantle composition doped with some key trace elements were conducted under hydrous conditions at pressures to 20 GPa. The results demonstrate that only ~5-25% of garnet fractionation ...
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(2002)Melting experiments at 2100-2400°C and 22-24.5 GPa to determine the liquidus to solidus phase relations and element partitioning coefficients were performed on different peridotite compositions: a pyrolite model and a KLB-1 ...
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(1996)We present data on He sorption in garnet obtained by loading garnet samples with He at 250±10 bar in the temperature range 800–990°C. For this temperature range we find a three-fold decrease in He sorption from 2.1 · 10−5 ...
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(1998)We have determined the pressure and temperature of the spinel-garnet transition close to the solidus of fertile and depleted peridotite from a combination of synthesis, sandwich and garnet-seeded experiments. Garnet is ...
Now showing items 1-7 of 7