RUSSIAN JOURNAL OF EARTH SCIENCES, VOL. 14, ES2002, doi:10.2205/2014ES000540, 2014

Table 5. Electron Microprobe Analyses (wt. %) of Spinels From the Kastek and Uchkuduk Xenoliths
1 2 3 4 5 6 7 8 9
SiO$_2$ 0.55 - 0.69 0.43 0.62 0.07 - - 0.60
TiO$_2$ - - - 0.29 - 0.55 0.09 - -
Al$_2$O$_3$ 58.65 59.13 58.97 58.03 59.25 46.32 52.22 66.29 60.16
FeOt 11.03 11.08 11.15 11.30 10.64 13.46 10.55 11.50 10.23
MgO 19.87 20.44 19.86 19.93 19.90 35.16 21.27 21.61 19.62
Cr$_2$O$_3$ 9.80 9.41 9.45 10.09 9.77 4.23 17.00 0.45 4.91
10 11 12 13 14 15 16 17 18
SiO$_2$ - - - - - - 0.03 0.06 0.07
TiO$_2$ - - - - - - 0.49 0.93 0.55
Al$_2$O$_3$ 55.90 58.30 57.44 57.84 57.69 56.05 56.05 38.21 46.32
FeOt 10.20 11.47 10.75 10.95 10.50 18.39 18.33 20.78 13.46
MnO 0.06 - 0.11 0.12 0.07 0.25 0.25 0.21 -
MgO 21.30 20.48 21.18 21.05 21.28 18.17 10.17 15.92 35.16
Cr$_2$O$_3$ 12.43 9.22 9.84 9.93 9.65 6.37 6.37 24.01 4.23
Note: 1-14 - Kastek (sample TS90-1x), 15-18 - Uchkuduk.

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Citation: Grachev A. F., P. V. Ermolov, Yifen Wang (2014), Modification of the lithospheric mantle during the early activity of a cenozoic plume in the North Tien Shan: Evidence from mantle xenoliths in basalts, Russ. J. Earth Sci., 14, ES2002, doi:10.2205/2014ES000540.
 

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