RUSSIAN JOURNAL OF EARTH SCIENCES, VOL. 15, ES1001, doi:10.2205/2015ES000546, 2015

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• Abstract
• Introduction
• Chemical and Isotopic Heterogeneity of the Mantle Within Single Xenolith Samples
  • Preparation Procedures of Samples for Their Analysis
  • Variations in the Concentrations of Major and Trace Elements in Sample CH-1
  • Variations in the Chemical Composition of Spinel Lherzolite Xenoliths Within a Single Volcanic Center: An Example of Tumbusun-Dulga Volcano
  • Variations in REE Concentrations in Mantle Xenoliths From Tumbusun-Dulga Volcano
  • Sm–Nd and He–Ar Isotopic Systematics of Mantle Xenoliths from Tumbusun-Dulga Volcano
  • Variations in the He Isotopic Composition of Xenoliths From the Khamar-Daban Range
• Heterogeneity of the Chemical and Isotopic Composition of the Mantle Beneath North Eurasia
  • Helium in Mantle Xenoliths From Northern Eurasia
  • Partial Melting of the Lherzolite Mantle
• Discussion and Conclusions
• References

• Figure 1. Layout of the studied fragments of sample CH-1: A and B are platelets...
• Figure 2. (a) MgO–CaO and (b) MgO–Al$_2$O$_3$ diagrams for...
• Figure 3. Al$_2$O$_3$–MgO–CaO (wt %) diagrams for ultramafic...
• Figure 4. (a) Mg/Si–Al/Si and (b) Ca/Si–Al/Si diagrams...
• Figure 5. Chondrite-normalized REE patterns of xenoliths from Tumbusun-Dulga...
• Figure 6. $^{143}$Nd/$^{144}$Nd–$^{87}$Sr/$^{86}$Sr diagram...
• Figure 7. $^{143}$Nd/$^{144}$Nd–$^{87}$Sr/$^{86}$Sr diagram for...
• Figure 8. $^3$He$/^4$He–$^{40}$Ar/$^{36}$Ar diagram for mantle xenoliths...
• Figure 9. CaO–Al$_2$O$_3$ diagram for the composition of mantle...
• Figure 10. Sm–Nd diagram for the composition of mantle xenoliths...
• Figure 11. He–Ar isotopic ratios in mantle xenoliths in Cenozoic...

• Table 1. Variations in the Concentrations (ppm) of Trace Elements Within...
• Table 2. Average Concentrations (ppm) of Trace Elements and Their Limits...
• Table 3. Sm and Nd Isotopic Ratios of Mantle Xenoliths From Various Areas...

 
Citation: Grachev A. F. (2015), Compositional heterogeneity of the continental mantle: Evidence from ultramafic xenoliths in cenozoic basalts from Northern Eurasia, Russ. J. Earth Sci., 15, ES1001, doi:10.2205/2015ES000546.
 

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