Geological structure and material composition of the kimberlite body «Yanvarskoe» (Daldyn-Alakit diamond-bearing district)
https://doi.org/10.32454/0016-7762-2018-5-39-43
Abstract
The new kimberlite pipe «Yanvarskaya» has been discovered in the Alakit-Markha field by a complex of geological and geophysical methods. For its delineation and the study three profile of wells were covered: one profile is along the long axis and two are in the cross stretch at the network 40x40 m. In wells geophysical researches, and also testing works, were carried out, including the selection ot the nine core samples with a total weight of 1120 kg, at the wells which had opened kimberlite. Yanvarskoe kimberlite body has a dike-like form with the orientation of the long axis in a North-East direction (50—55°) with sizes under overlying rocks 90x45 m, with an area of 2836 m2, which allows reference of this body to the class of small bodies. The body is composed of porphyry kimberlites of greenish-gray and yellowish-brown colors, strongly altered, dissected by numerous differently oriented cracks filled with calcite. Based on the results of core testing, a diamond of class -2+1 mm weighing of 2.1 mg (0,01 car.) was found.
About the Authors
D. V. Ivanov
ALROSA JSC, Public Company
Russian Federation
Russian Federation
Mirny Office, 6, Lenina ul., Mirny 678174 Republic of Sakha (Yakutia)
A. V. Tolstov
ALROSA JSC, Public Company
Russian Federation
Russian Federation
Mirny Office, 6, Lenina ul., Mirny 678174 Republic of Sakha (Yakutia)
V. V. Ivanov
ALROSA JSC, Public Company
Russian Federation
Russian Federation
Mirny Office, 6, Lenina ul., Mirny 678174 Republic of Sakha (Yakutia)
References
1. Afanasiev V.P., Nikolenko E.I., Tychkov N.S., Titov A.T., Tolstov A.V., KornilovaV.P., Sobolev N.V. Mechanical wear of kimberlite indicator minerals: experimental studies. Geologiya i geofizika [Geology and Geophysics], 2008. Т. 49, no. 2, pp. 120-127. (In Russian).
2. Belov S.V., lapin A.V., Tolstov A.V., Frolov A.A. Minerageny of platform magmatism (traps, carbonatites, kimberlites). М., IMGRE Publ., 2008, 537 p. (In Russian).
3. Vasilenko V.B., Tolstov A.V., Kuznecova L.G., Minin V.A. Petrochemical criteria for evaluation of diamond content of kimberlite deposits in Yakutia. Geohimiya — Geochemistry, 2010, no. 4, pp. 366-376. (In Russian).
4. Ivanov D.V., Ivanov V.V., Tolstov A.V. Features of indicator minerals of kimberlites of the new January tube (Western Yakutia). Izvestiya vysshikh uchebnykh zavedeniy.Geologiya i razvedka — [Proceedings of higher educational establishments. Geology and Exploration], 2017, no. 5, pp. 20-26. (In Russian).
5. Ignatov P.A., Bushkov K.Y., Shtejn Y.I., Tolstov A.V., Yanygin Y.T. Geological and mineralogical-geochemical features of structures controlling diamond-bearing kimberlites of the Nakyn field of Yakutia. Rudy i metally — Ores and metals, 2006, no. 4, pp. 59-67. (In Russian).
6. Instrukciya po primeneniyu klassifikacii zapasov k korennym mestorozhdeniyam al-mazov [Instructions for the application of reserves classification to indigenous diamond deposits]. M., GKZ, SSSR Publ., 1984, 22 p. (In Russian).
7. Kremeneckij A.A., Karas S.A., Tolstov A.V. Geochemical search of kimberlite pipes in closed areas: problems and solutions. Regionalnaya geologiya i metallogeniya — Regional Geology and metallogeny, 2006, no. 27, pp. 126-139. (In Russian).
8. Maltsev M.V., Tolstov A.V., Fomin V.M., Starkova T.S. New kimberlite field in Yakutia and typomorphic peculiarities of minerals-indicators. Vestnik VGU. Seriya: geologiya — Bulletin of VSU. Series: Geology, 2016, no. 3, pp. 86-94. (In Russian).
9. Maltsev M.V., Tolstov A.V., Starkova T.S., Ivanov A.S. Features of the kimberlite material composition in Syuldyukarskue kimberlite field (Western Yakutia). Nauka i obrazovanie — Science and education, 2017, no. 4, pp. 37-43. (In Russian).
10. Metodicheskie ukazaniya po poiskam korennyh mestorozhdenij almazov na sibirskoj platforme (Yakutskaya almazonosnaya provinciya) [Guidelines for the search for indigenous diamond deposits on the Siberian platform (Yakut diamond-bearing province)]. Leningrad, 1989, 64 p. (In Russian).
11. Orlov U. L. Mineralogiya almaza [Mineralogy of diamond]. M., Nauka Publ., 1973, 170 p. (In Russian).
12. Simonenko V.I., Tolstov A.V., Vasileva V.I. New approach to geochemical prospecting of kimberlites in closed areas. Razvedka I ohrana nedr — exploration and protection of mineral resources, 2008, no. 4, 5, pp. 108-112. (In Russian).
13. Tolstov A.V., Minin V.A., Vasilenko V.B., Kuznecova L.B., Razu-mov A.N. New body of high-diamond kimberlites in the Nakyn field of the Yakut diamondiferous province. Geologiya i geofizika — Geology and Geophysics, 2009, T. 50, no. 3, pp. 227-240. (In Russian).
14. Tolstov A.V. The main ore formations of the Northern Siberian platform. M., IMGRE Publ., 2006, 212 p. (In Russian).
15. Agashev A.M., Pokhilenko N.P., Tolstov A.V., Orihashi Y., Nakai S., Serov I.V. Age of Mirny field kimberlites (Siberia) and application of rutile and titanite for U-Pb dating of kimberlite emplacement by LA-ICP-MS. Geochemical Journal, 2016, Т. 50, no. 5, pp. 431-438.
Review
For citations:
Ivanov D.V., Tolstov A.V., Ivanov V.V. Geological structure and material composition of the kimberlite body «Yanvarskoe» (Daldyn-Alakit diamond-bearing district). Proceedings of higher educational establishments. Geology and Exploration. 2018;(5):39-43. (In Russ.) https://doi.org/10.32454/0016-7762-2018-5-39-43
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