Arkhangelskgeoldobycha JSC:

Pendelyak R. N., Principal Geologist, e-mail: RPendelyak@agd.lukoil.com

Verichev E. M., Deputy Head of Geological Department, Candidate of Geologo-Mineralogical Sciences e-mail: EVerichev@agd.lukoil.com

Golovin N. N., Head of a Department — Chief Geologist, Candidate of Geologo-Mineralogical Sciences e-mail: NGolovin@agd.lukoil.com

The article describes the structure and tectonics of the Grib Diamond Deposit. The authors give details of the country rocks and overlying formations, and structural features of kimberlite pipes. Petrography of rocks in the crater and vent, and mineral and petrochemical composition of Grib kimberlites are characterized and compared with the Lomonosov Deposit kimberlites nearby. The data on diamond content and morphology of diamonds are given in brief.

1. Sinitsin A. V., Grib V. P., Ermolaeva E. L., Stankovskiy A. F., Starostin V. A. Doklady Akademii nauk SSSR = Reports of USSR Academy of Sciences. 1982. Vol. 264, No. 3. pp. 680–681.
2. Tretyachenko V. V. Mineragenicheskoe rayonirovanie kimberlitovoy oblasti Yugo-Vostochnogo Belomorya : avtoreferat dissertatsii … kandidata geologo-mineralogicheskikh nauk (Mineragenic zoning of kimberlite area of South-Eastern White Sea Region : thesis of inauguration of Dissertation …of Candidate of Geological and Mineralogical Sciences). Moscow, 2008. 30 p.
3. Verichev E. M. Geologicheskie usloviya obrazovaniya i razvedka mestorozhdeniya almazov imeni Griba : avtoreferat dissertatsii … kandidata geologo-mineralogicheskikh nauk (Geological formation conditions and exploration of Grib diamond deposit : thesis of inauguration of Dissertation … of Candidate of Geological and Mineralogical Sciences). Moscow, 2002. 43 p.
4. Kharkiv A. D., Zinchuk N. N., Kryuchkov A. I. Geologo-geneticheskie osnovy shlikho-mineralogicheskogo metoda poiskov almaznykh mestorozhdeniy (Geological-genetic basis of heavy concentrate and mineralogical method of exploration of diamond deposits). Moscow : Nedra, 1995. 345 p.
5. Garanin V. K., Kudryavtseva G. P., Posukhova T. V. et al. Geologiya i razvedka = Geology and prospecting. 2011. No. 4. pp. 36–49.
6. Kostrovitsky S. I., Malkovets V. G., Verichev E. M., Garanin V. K., Suvorova L. V. Megacrysts from Grib kinberlite pipe (Arkhangelsk province). Lithos, 2004. Vol. 77. pp. 511–523.
7. Sablukov S. M., Sablukova L. I., Shavyrina M. V. Izvestiya vuzov. Petrologiya = Proceedings of universities. Petrology. 2000. Vol. 8, No. 5. pp. 518–548.
8. Garanin K. V. Shchelochnye ultraosnovnye magmatity Zimnego Berega (Arkhangelskaya almazonosnaya provintsiya): geologiya, genezis, almazonosnost, poisk i perspektivy osvoeniya (Alkaline ultra-basic magmatites of Zimniy Bereg (Arkhangelsk diamondiferrous province) : geology, genesis, diamond content, exploration and mastering prospects). Moscow : Publishing House of Moscow State University, 2006. 370 p.