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ArticleName Features of hidden structures in sedimentary strata hosting diamond deposits of the Nakyn field, Yakutia
DOI 10.17580/gzh.2018.11.02
ArticleAuthor Ignatov P. A., Kryazhev S. G., Tolstov A. V., Maltsev M. V.

Sergo Ordzhonikidze Russian State Geological Prospecting University, Moscow, Russia:

P. A. Ignatov, Professor, Doctor of Geologo-Mineralogical Sciences,


Central Research Institute of Geological Prospecting for Base and Precious Metals, Moscow, Russia:
S. G. Kryazhev, Leading Researcher, Doctor of Geologo-Mineralogical Sciences


ALROSA, Mirny, Russia:
A. V. Tolstov, Director of Research and Exploration Operations, Doctor of Geologo-Mineralogical Sciences
M. V. Maltsev, Head of Geological Exploration Field Party


In addition to classical data of magnetic and electrical geophysical surveys and heavy mineral sampling, it is proposed to use a complex of tectonic, fluid-fracturing and mineralogical-geochemical features during prospecting for diamond deposits on covered areas. They are examined on the basis of core and analytical data study in the Nakyn ore field of Yakutia in which Nyurba and Botuobin kimberlite pipes are mined. They intrude through the sedimentary rocks of the Lower Paleozoic and are overlaid by the Jurassic terrigenous strata. The features are studied by the ranks of the field, clusters and kimberlite bodies. The tectonic position of the Nakyn field (~100 km2) is determined by the structural node formed by faults intersections of I - II orders represented by the trappean dyke belts and the manifestation of paleo seismogenic dislocations of Cambrian and Ordovician sediments. The field is marked by the areas of eruptive breccias of basites, fluid-fracturing carbonate breccias and fluidizite veins, manifestations of skarns and hydrothermal mineralization (pyrite, sphalerite, celestite, barite, calcite, dolomite). Kimberlite clusters represented by pipes and dykes are within areas of first km2. They are in the central part of the marked area and are localized at the structural nodes of III-IV order strike-slips intersections. They are concentrated vein and meta-grained manifestations of barite, sphalerite, pyrite and calcite with red and blue photoluminescence, light isotope composition of carbon and oxygen that indicate discharge sites of high temperature waters. Kimberlite pipes and dykes occupy areas of up to 1 km2 and are located in the local extension zones of diagonal ore-hosted strike-slip (pull apart, accommodation, intersection of strike-slips) which are established by the micro deformations mapping of the Lower Paleozoic layers. In such areas there are explosive deformations of the host rocks fixed by structural-petrophysical data, manifestations of fluid-fracturing formations, halos of impregnated high-temperature gases (СО2, СН4, etc.). The areas are characterized by mineralogical-geochemical, gas-geochemical and isotopegeochemical parameters that reflect local sites of high-temperature waters discharge.

keywords Kimberlite, ore-enclosing rocks, paleo-seismogenic dislocations, tectonics, fluid-fracturing, carbon isotopes, oxygen and sulfur isotopes, gas-geochemical halos

1. Ignatov P. A., Novikov K. V., Shmonov A. M., Razumov A. N., Kilizhikov O. K. Comparative analysis of ore-bearing structures in Maiskoe, Markha, and Ozernoe kimberlite bodies at the Nakyn field, Yakutia. Geology of Ore Deposits. 2015. Vol. 57, No. 2. pp. 111–117.
2. Ignatov P. A., Novikov K. V., Zaripov N. R., Khodnya M. S., Shmonov A. M. Et al. Set of unconventional signs for prospecting primary diamond deposits in restricted areas. Problems of Minerageny, Economic Geology and Mineral Reserves (Smirnov’s Collection–2017) : Scientific Literature Almanac. Moscow : MAKS Press, 2017. pp. 207–228.
3. Shmonov A. M. Structural, geological, mineralogical and geochemical features intrinsic to diamond dykes and veins (in terms of the Nakyn kimberlite field in Yakutia) : thesis of inauguration of Dissertation … of Candidate of Geologo-Mineralogical Sciences. Moscow, 2014. 23 p.
4. Shtein Ya. I. Geological features the adjacent rock mass of kimberlite pipes in Yakutia as the primary diamond deposit criterion in local areas : Dissertation … of Candidate of Geologo-Mineralogical Sciences. Moscow, 1997. 138 p.
5. Kiselev A. I., Yegorov K. N., Chernyshov R. A., Chashchukhin A. V., Yanygin Yu. T. The nature of basic explosive breccias within the Nakyn kimberlitic field (Yakutian diamondiferous province). Russian Journal of Pacific Geology. 2004. Vol. 23, No. 1. pp. 97–104.
6. Giuliani A. Insights into kimberlite petrogenesis and mantle metasomatism from a review of the compositional zoning of olivine in kimberlites worldwide. Lithos. 2018. Vol. 312–313. pp. 322–342.
7. Kostrovitsky S. I., Spetsius Z. V., Yakovlev D. A., Von-der-Flaas G. S., Suvorova L. F., Bogush I. N. Atlas of Primary Diamond Deposits in the Yakutia Kimberlite Province. Mirny : MGT, 2015. 480 p.
8. Soltys A., Giuliani A., Phillips D. A new approach to reconstructing the composition and evolution of kimberlite melts: A case study of the archetypal Bultfontein kimberlite (Kimberley, South Africa). Lithos. 2018. Vol. 304–307. pp. 1–15.
9. Shaikh A. M., Patel S. C., Ravi S., Behera D., Pruseth K. L. Mineralogy of the TK1 and TK4 ‘kimberlites’ in the Timmasamudram cluster, Wajrakarur Kimberlite Field, India: Implications for lamproite magmatism in a field of kimberlites and ultramafic lamprophyres. Chemical Geology. 2017. Vol. 455. pp. 208–230.
10. Smith C. B., Haggerty S. E., Chatterjee B., Beard A., Townend R. Kimberlite, lamproite, ultramafic lamprophyre, and carbonatite relationships on the Dharwar Craton, India; an example from the Khaderpet pipe, a diamondiferous ultramafic with associated carbonatite intrusion. Lithos. 2013. Vol. 182–183. pp. 102–113.
11. Sibson R. H., Scott J. Stress/fault controls on the containment and release of overpressured fluids: Examples from gold-quartz vein systems in Juneau, Alaska; Victoria, Australia and Otago, New Zealand. Ore Geology Reviews. 1998. Vol. 13, Iss. 1–5. pp. 293–306.
12. Sillitoe R. H. Ore-Related Breccias in Volcanoplutonic Arcs. Economic Geology. 1985. Vol. 80, No. 6. pp. 1467–1514.
13. McCalpin J. (Ed). Paleoseismology. New York : Academic Press, 2009. 629 p.
14. Bushkov K. Yu. Structure of the Nakyn kimberlite field and signs of hidden strike–slip kimberlitecontrol structures : thesis of inauguration of Dissertation … of Candidate of Geologo-Mineralogical Sciences. Moscow, 2006. 21 p.
15. Gladkov A. S., Koshkarev D. A. Fault zone structure as a sign for prospecting primary diamond deposits. Geological Support of Diamond Reserves Supply (Problems, Solutions, Innovations and Technologies) : IV Regional Scientific–Practical Conference Proceedings. Mirny, 2014. pp. 44–48.
16. Faure G. Principles of Isotope Geology. New York : John Willey & Sons, 1987. 606 p.

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