Deep-seated inclusions from the Karyerny and Sukhoi volcanoes in the eastern part of the Tunka valley mark the northern limit of green (chrome-diopside bearing) xenoliths on the area of the Khamardaban terrain that coincides with the hypersthene isograde of the granulite metamorphism facies of the Slyudyanka crystalline complex. A new location of deep-seated inclusions has been studied in lavas from the Karyerny volcano, where green peridotites (with chrome-diopside) and black pyroxenites (with augite) have been found. The study of green peridotites showed the predominating spinel and spinel-free lherzolites with a subordinate role of phlogopite verlites, spinel harzburgites, and olivine websterites. In terms of major oxides, (1) rocks close to the primitive mantle, (2) restites, and (3) metasomatites have been recognized. In the Th/Yb versus Ta/Yb diagram, data points of the former group have been plotted within the mantle array, whereas those of the two other groups have been shifted to the area of crustal compositions. From temperature estimates of 845–971 °C (Nimis–Taylor thermometer), obtained for the predominating restite group, it is suggested that these rocks originate from a 3 km thick lithospheric layer, at a base and top of which, rocks close to the primitive mantle (temperature 967 °C) and metasomatites (temperatures 825–863 °C) occur.

Ailow Youseph, Postgraduate, Reseacher, Irkutsk State University, 1, K. Marx st., Irkutsk, 664003, Russian Federation, tel.: 8(3952)24-32-80, Teacher, Al-Furat University, Syria, Deir ez-Zor, tel./fax.: +(963) 51 313572, е-mail: youseph.gh.g@gmail.com 

Rasskazov Sergei Vasilyevich, Doctor of Sciences (Geology and Mineralogy), Professor, Head, Dynamic Geology Chair, Irkutsk State University, 1, K. Marx st., Irkutsk, 664003, Russian Federation, tel.: 8(3952)51-16-59, Head, Laboratory of Isotopiec and Geochronological Studies, Institute of the Earth's Crust SB RAS, 128, Lermontov st., Irkutsk, 664033, Russian Federation, e-mail: rassk@crust.irk.ru 

Chuvashova Irina Sergeevna, Candidate of Sciences (Geology and Mineralogy), Assistant Professor, Irkutsk State University, 1, K. Marx st., Irkutsk, 664003, Russian Federation, Senior Researcher, Institute of the Earth's Crust SB RAS, 128, Lermontov st., Irkutsk, 664033, Russian Federation, tel.: 8(3952)51-16-59, e-mail: chuvashova@crust.irk.ru 

Yasnygina Tatyana Aleksandrovna, Candidate of Sciences (Geology and Mineralogy), Senior Researcher, Institute of the Earth's Crust SB RAS, 128, Lermontov st., Irkutsk, 664033, Russian Federation, tel.: 8(3952)51-16-59, e-mail: ty@crust.irk.ru

Ailow Y., Rasskazov S.V., Chuvashova I.S., Yasnygina T.A. Relationship Between Rocks of Primitive Mantle, Restites, and Metasomatites in Inclusions from Basanites of the Karyerny Volcano (Western Pribaikal). The Bulletin of Irkutsk State University. Series Earth Sciences, 2019, vol. 29, pp. 3-23. https://doi.org/10.26516/2073-3402.2019.29.3 (in Russian)

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