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

Table 8. The Average Content of REE (ppm) in the Cenozoic Basalts and Deep-Derived Xenoliths of North Tien Shan
1(4) 2(9) 3(3) 4(2) 5(3) 6(3) 7(1) 8(2) 9(4) 10(3)
La 33.2 32.2 45.0 41.0 0.44 0.76 0.90 3.05 10.05 34.3
Ce 65.7 59.7 79.0 77.0 0.80 1.24 2.1 6.4 21.2 62
Sm 6.8 6.9 10.6 8.8 0.14 0.27 0.75 1.3 4.6 5.4
Tb 0.82 0.98 1.2 1.5 0.034 0.077 0.11 0.38 0.75 0.87
Yb 0.99 1.6 2.1 1.8 0.17 0.35 0.31 0.43 1.43 2.2
Lu 0.13 0.23 0.26 0.27 0.029 0.054 0.048 0.057 0.19 0.34
La/Yb 255.4 140 173 152 15.2 14.1 18.7 53.5 52.9 100.9
Note: 1 - basanites of neck Kastek, 2 - dolerites in the Cenozoic rocks of Boom canyon, 3 - basalts in the Cenozoic rocks of Bailamtal mountains, 4 - basanites of Uchkuduck neck, 5-10 - deep-seated xenoliths in basanites of Kastek and Uchkuduck necks: 5 - harzburgite of the green series, 6 - spinel lherzolite of the green series, 7 - spinel-olivine websterite of the green series, 8 - wehrlite of the black series, 9 - pyroxenite of the black series, 10 - anorthosite of the lower crust.

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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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