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A. N. Sirotkin
A. N. Sirotkin
National Mineral Resources University (Mining University)
National Mineral Resources University (Mining University)
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Articles

Geology and metallogeny
  • Date submitted
    2016-11-10
  • Date published
    2013-01-01

Late paleozoic alkaline-ultramaphic magmatism in Spitsbergen archipelagoes

Findings in the northwest of Spitsbergen of the hypabyssal intrusions of maphic and ultramaphic compositions with the increased content of alkalis and accessory minerals of kimberlite gave base for the more thorough studies of the region of their propagation, determination of laws governing the arrangement in the zone of the deep submeridional breaking zone  Breybogen, study of the physical composition, enriched by xenolites of the mantle level: lherzolites and wehrlites. The Late Paleozoic age, which coincides with the age of kimberlite of Arkhangel'sk region and the mineral-petrographical composition of these species testify about the significant similarity to the pyropic subfacies of kimberlitic magmatism.

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A. N. Evdokimova, A. N. Sirotkin, V. S. Chebaevskii (2013) Late paleozoic alkaline-ultramaphic magmatism in Spitsbergen archipelagoes. Journal of Mining Institute. Vol 200. p. 201.
Current problems in geology and exploration of mineral deposits
  • Date submitted
    2016-11-25
  • Date published
    2011-06-01

Peculiiarities of geodynamic development оf the devonian graben at Spitsbergen archipelago

The new data on geology of Devonian graben and subjacent complexes allow reviewing the evolution of geodynamic processes in this region during Riphean-Paleozoic. It was confirmed that Cambrian – Early Silurian series were formed in the platform environment under conditions of stable dome-like uplifting of the territory, and the subalkaline granitoids (S2-D1) may be classified as anorogenic intrusion. Devonian riftogenesis was a sequel of regeneration of the Riphean paleo- rift in conditions of general spreading. There are distinguished three stages in formation of the graben: pre-graben, orogenic and post-orogenic ones, with description of complexes formed at those stages. Concluding processes of this type are related to formation of fluorite-barite-рolymetallic occurrences and alkaline-ultrabasic dykes (D3) in zones of deep faults. The conclusion is made that the crust block, representing basement of the Barenz-sea plate in the region, has gone through the recurrent intra-plate riftogenesis in the Middle Paleozoic.

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A. N. Sirotkin, D. V. Nikitin (2011) Peculiiarities of geodynamic development оf the devonian graben at Spitsbergen archipelago. Journal of Mining Institute. Vol 194. p. 104.
Geology, search and prospecting of mineral deposits
  • Date submitted
    2016-12-28
  • Date published
    2009-04-01

Geological structure, characteristics of ores and genesis of ore occurrences in the Halvdanpiggen field (West Spitsbergen island)

A new metallogenic zone was separated out in a central part of the archipelago Spitsbergen by the results of exploration work. It was shown an integral series of ore areas and fields in the limits of this zone, including the ore field Halvdanpiggen. This field integrates several non-uniformly scaled the ore occurrences, which present a great interest in regard to a material composition of the ore. They likewise produce an information for determination of genesis and outlooks of total metallogenic zone. The article contains data on geology, mineralogy and geochemistry of deposits; it is established their genesis, formation membership and time of origination. 

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A. N. Sirotkin, V. V. Khailov, D. V. Nikitin (2009) Geological structure, characteristics of ores and genesis of ore occurrences in the Halvdanpiggen field (West Spitsbergen island). Journal of Mining Institute. Vol 183. p. 127.