Zavarzina G.A.
g.zavazina@vniio.ru
Graduated from Saint-Petersburg State Mining Institute (1993), specialization «Geology, prospecting and exploration of mineral deposits».
Leading Researcher of Federal State Budgetary Institution VNIIOkeangeologiya named after Academician I.S. Gramberg.
Area of scientific interest: seismostratigraphy, tectonics, basin analysis and modeling of hydrocarbon systems.
Author of more than 20 publications.
Offshore hydrocarbon accumulations
| Article # 15_2026 | submitted on 03/02/2026 displayed on website on 05/29/2026 |
| 27 p. | Zavarzina G.A., Vysokolyan A.M. |
| Current issues in the geological structure of the southern Laptev Sea shelf | |
| The Laptev Sea shelf is considered a promising region with significant hydrocarbon potential. Study and exploration of its resources are hampered by its complex geological structure and the harsh climatic conditions. The southern part of the Laptev Sea shelf, whose geological structure remains poorly understood, is however considered a promising area for the effective development of natural resources. This paper presents the results of a comprehensive analysis of geological and geophysical data aimed at updating the geological model of the junction zone study the Siberian Platform, the Verkhoyansk-Kolyma folded region, and the Laptev Sea Plate. This recherche is based on the results of reinterpretation of 2D CMP seismic data in the southwestern and southern parts of the Laptev Sea shelf, as well as the analysis of geological survey data, paleotectonic reconstructions, and low-temperature thermochronology on adjacent land area. Keywords: analysis of paleotectonic reconstructions, reinterpretation of seismic data, geological model of the junction zone, Laptev Sea plate, Siberian platform, Verkhoyansk-Kolyma folded region, southern part of the Laptev Sea shelf. |
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| article citation | Zavarzina G.A., Vysokolyan A.M. Current issues in the geological structure of the southern Laptev Sea shelf. Neftegazovaya Geologiya. Teoriya I Praktika, 2026, vol. 21, no. 2, available at: https://www.ngtp.ru/rub/2026/15_2026.html EDN: QXZUJX |
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Zavarzina G.A. Tectonic features and oil and gas potential of the western part of the Laptev Sea. Abstract of the candidate of geological and mineral sciences dissertation. St. Petersburg, 2013, 22 p. (In Russ.). EDN: SURWED
Zavarzina G.A., Shlykova V.V., Shkarubo S.I., Poshtatskaya A.G. New data on the tectonics of the Taymyr shelf of the Laptev Sea. Razvedka i okhrana nedr, 2014, no. 4, pp. 30-34. (In Russ.). EDN: SAHXTH
Zavarzina G.A., Vysokolyan A.M. Current problems of geology and tectonics of the Laptev Sea sedimentary basin. Status and prospects of oil and gas exploration on the continental shelf of the Russian Federation. III Scientific and Practical Conference. FGPU "VNIIOkeangeologia". St. Petersburg. 2025, vol. 3, 86 p. (In Russ.).
Zavarzina G.А., Shkarubo S.I. Tectonics of the western part of the Laptev sea shelf. Neftegazovaya Geologiya. Teoriya I Praktika, 2012, vol. 7, no. 3, available at: http://www.ngtp.ru/rub/4/39_2012.pdf (In Russ.). EDN: PCYQWZ
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Bol'shiyanov D.Yu., Vasil'yev B.S., Vinogradova N.P., Gavrish A.V., Zavarzina G.A., Zinchenko A.G., Zuykova O.N., Kyamyarya V.V., Mokhov V.V., Nagaytseva N.N., Nelyubin V.V., Radchenko M.S., Savanin V.V., Proskurnin V.F., Rekant P.V., Solonina S.F., Shkarubo S.I., Shmanyak A.V. State Geological Map of the Russian Federation at a scale of 1:1,000,000. Sheet S-51 - Olenek Bay, S-52 - Lena River Delta. Explanatory note. St. Petersburg: VSEGEI, 2014, 208 p. (In Russ.).
Deev E.V., Duchkov A.A., Eponeshnikova L.Yu., Dergach P.A., Zaplanova A.A., Potapov V.V., Safronov O.V., Ponasenko S.N., Tuktarov R.M., Shibaev S.V. Structure of the upper lithosphere in the Lena River delta area: new complex results of geological and geophysical research. Geologiya i geofizika, 2025, vol. 66, no. 5, p. 1553-1576. (In Russ.). DOI: 10.15372/GiG2025154
Doré A., Lundin E., Gibbons A., Sømme T., Tørudbakken B. Transform margins of the Arctic: a synthesis and re-evaluation. Geological Society London Special Publications, 2016, vol. 431, pp. 63-94. DOI: 10.1144/sp431.8
Drachev S.S. Tectonics of the Laptev Sea shelf rift system. Geotektonika, 2000, no. 6, pp. 43-58. (In Russ.). EDN: DUJMXF
Drachev S.S., Ershova V.B., Shkarubo S.I. Laptev rift system composite tectono-sedimentary element, East Siberian Arctic. Geological Society Memoir, 2025, vol. 57, no. 1. DOI: 10.1144/M57-2023-17
Drachev S.S., Kaul N., Beliaev V.N. Eurasia spreading basin to Laptev Shelf transition: structural pattern and heat flow. Geophysical Journal International, 2003, vol. 152, pp. 688-698. DOI: 10.1046/j.1365-246X.2003.01882.x
Drachev S.S., Mazur S., Campbell S. Crustal architecture of the Laptev rift system in the East Siberian Arctic based on 2D long-offset seismic profiles and gravity modelling. Petroleum Geoscience, 2018, vol. 24, pp. 402-413. DOI: 10.1144/petgeo2016-143
Dzyublo A.D., Grushevskaya O.V., Obukhov A.N., Makarova A.Yu. Structural-formational zonation of the Laptev Sea shelf (Eastern Arctic). Geotektonika, 2022, no. 4, pp. 412-431. (In Russ.). DOI: 10.31857/S0016853X2204004X
Franke D., Hinz K., Oncken O. The Laptev Sea rift. Marine and Petroleum Geology, 2001, no. 18, pp. 1083-1127. DOI: 10.1016/S0264-8172(01)00041-1
Franke D., Krüger F., Klinge K. Tectonics of the Laptev sea - Moma `rift' region: investigation with seismologic broadband data. Journal of Seismology, 2000, no. 4, pp. 99-116. DOI: 10.1023/A:1009866032111
Geological structure and regularities of mineral resources distribution. Vol. 9. Seas of the Soviet Arctic. Ed. by I.S. Gramberg, Yu.E. Pogrebitskiy. Leningrad: Nedra, 1984, 280 p. (In Russ.).
Geology and mineral resources of Russia. In six volumes. Vol. 5. Arctic and Far Eastern Seas. Book 1. Arctic Seas. Ed. by I.S. Gramberg, V.L. Ivanov, Yu.E. Pogrebitskiy. St. Petersburg: VSEGEI Publishing House, 2004, 468 p. (MPR RF, RAS, VNIIOkeangeologia). (In Russ.).
Glebovskiy V.Yu., Chernykh A.A., Kaminskiy V.D., Vasil'yev V.V., Korneva M.S., Sukhanova A.V., Red'ko A.G., Yakovenko I.V. Main results and plans for further magnetometric and gravimetric research in the Arctic Ocean. 70 years in the Arctic, Antarctic and the World Ocean. Collection of scientific papers ed. by V.D. Kaminskiy, G.P. Avetisov, V.L. Ivanov. St. Petersburg: VNIIOkeangeologia. 2018, pp. 229-238. (In Russ.). EDN: QJWFUP
Ivanova N.M., Sekretov S.B., Shkarubo S.I. Data on the geological structure of the Laptev Sea shelf based on seismic research materials. Okeanologiya, 1989, vol. XXIX, issue 5, pp. 789-795. (In Russ.). EDN: HMNQZO
Kontorovich V.A., Kontorovich A.E. Seismogeological characteristics and stratification of the section in the Arctic regions of the Siberian Platform and on the Laptev Sea shelf. Doklady Akademii Nauk, 2021, no. 1, pp. 94-100. (In Russ.).
Kos’ko M.K., Sobolev N.N., Korago E.A., Proskurnin V.F., Stolbov N.M. Geology of Novosibirskian Islands - a basis for interpretation of geophysical data on the Eastern Arctic shelf of Russia. Neftegazovaya Geologiya. Teoriya I Praktika, 2013, vol. 8, no. 2, available at: http://www.ngtp.ru/rub/5/17_2013.pdf (In Russ.). DOI: 10.17353/2070-5379/17_2013
Lavrenova E.A., Kerimov V.Yu., Gorbunov A.A. Geodynamic zoning and structural-formational complexes of the sedimentary cover of the East Arctic seas of Russia. Gornyi zhurnal, 2024, no. 10, pp. 31-40. (In Russ.). DOI: 10.17580/gzh.2024.10.04
Lobkovskiy L.I. Tectonics of deformable lithospheric plates and a model of regional geodynamics as applied to the Arctic and North-East Asia. Geologiia i geofizika, 2016, vol. 57, no. 3, pp. 476-495. (In Russ.). DOI: 10.15372/GiG20160302
Lobkovskiy L.I., Kononov M.V., Shipilov E.V. Geodynamic causes for the onset and termination of Cenozoic strike-slip deformations in the Khatanga-Lomonosov fault zone (Arctic). Doklady Rossiiskoi akademii nauk. Nauki o Zemle, 2020, vol. 492, no. 1, pp. 82-87. (In Russ.). DOI: 10.31857/S2686739720050102
Lobkovskiy L.I., Shipilov E.V., Kononov M.V. Geodynamic model of upper mantle convection and transformation of the Arctic lithosphere in the Mesozoic and Cenozoic. Fizika Zemli, 2013, no. 6, pp. 20-38. (In Russ.). DOI: 10.7868/S0002333713060100
Malyshev N.A., Verzhbitskiy V.E., Kolyubakin A.A., Komissarov D.K., Borodulin A.A., Obmetko V.V., Popova A.B., Danilkin S.M., Vasilieva I.S., Timoshenko T.A., Aleksandrova G.N., Gatovskiy Yu.A., Suslova A.A., Nikishin A.M. Technological aspects and experience of stratigraphic drilling in the seas of the Russian Arctic. Geologiia nefti i gaza, 2024, no. 3, pp. 19-30. (In Russ.). DOI: 10.47148/0016-7894-2024-3-19-30qa
Nikishin A.M., Malyshev N.A., Petrov E.N. Key problems of the structure and geological history of the Arctic Ocean. Vestnik Rossiiskoi akademii nauk, 2020, vol. 90, no. 5, pp. 434-446. (In Russ.). DOI: 10.31857/S0869587320050072
Nikishin A.M., Petrov E.I., Chernykh A.A., Startseva K.F., Freiman S.I., Verzhbitskiy V.E., Malyshev N.A., Afanasenkov A.P., Savin V.A., Skolotnev S.G., Cloetingh S., Posamentier H., Foulger G. 2A new tectonic and geodynamic model of the Arctic Ocean formation. Tectonics and geodynamics of the Earth's crust and mantle: fundamental problems: materials of the LIII Tectonic Meeting. Moscow: GEOS, 2022, vol. 2, pp. 48-51. (In Russ.). EDN: IXKSHS
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Offshore hydrocarbon accumulations
Section editor – PhD in geology and mineralogy Margulis L.S.
| Article # 64_2012 | submitted on 10/15/2012 displayed on website on 12/06/2012 |
| 15 p. | Zavarzina G.A. |
| Types of potential hydrocarbon traps and their areal extent in the western part of the Laptev sea shelf | |
| Recent years have seen the discovery of over 50 local structures on the Laptev Sea shelf. Facies variations and intricate architecture of sedimentary sequences, their partition by displacements of complex kinematics determined the formation of different types of hydrocarbon traps. The evidence obtained from the seismic stratigraphic and seismic facial analysis as well as the structural mapping based on 2-D CDP reflection data has revealed the presence of structural, lithologic, lithologic/stratigraphic and combination hydrocarbon traps. The presented subdivision of hydrocarbon traps provides the basis for more efficient exploration during the early stages of studying exploration targets.
Key words: sedimentary basin, seismic sequence, displacement, strike-slip, normal fault, reverse fault, horst, graben, hydrocarbon trap, oil and gas play, oil and gas accumulation zone. |
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| article citation | Zavarzina G.А. Tipy potentsial'nykh lovushek uglevodorodov i ikh rasprostranenie v zapadnoy chasti shel'fa morya Laptevykh [Types of potential hydrocarbon traps and their areal extent in the western part of the Laptev sea shelf]. Neftegazovaya Geologiya. Teoriya I Praktika, 2012, vol. 7, no. 4, available at: http://www.ngtp.ru/rub/5/64_2012.pdf |
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Regional petroleum geology
Section editor – PhD in geology and mineralogy Makarevich V.N.
| Article # 39_2012 | submitted on 06/06/2012 displayed on website on 08/02/2012 |
| 14 p. | Zavarzina G.A., Shkarubo S.I. |
| Tectonics of the western part of the Laptev sea shelf* | |
| *The article is presented in two languages, Russian and English. Main structural elements and disjunctive dislocation systems are revealed and traced from the results of integrated geophysical investigations (gravimetry, magnetometry and 2D seismic surveys) conducted in 2005 to 2010 within the Laptev Sea shelf. The breaks of the north-west strike identify the formation of the Laptev Sea Plate and its main structures: the Lena-Taimyr area of border uplifts, West-Laptevrift system and Novosibirsk system of grabens and horsts. The slips of the north-east strike dominate as transversal breaks of Cenozoic activation. Identification of the main disjunctive dislocation systems is the base for tectonic zonation and understanding of region evolution. Key words: rifting, tectonic block, thrust, fault, slip, strike-slip, Laptev Sea Plate. |
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| article citation | Zavarzina G.А., Shkarubo S.I. Tektonika zapadnoy chasti shel'fa morya Laptevykh [Tectonics of the western part of the Laptev sea shelf]. Neftegazovaya Geologiya. Teoriya I Praktika, 2012, vol. 7, no. 3, available at: http://www.ngtp.ru/rub/4/39_2012.eng.pdf |
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Shkarubo S.I., Zavarzina G.A. Stratigrafiya i kharakteristika seysmicheskikh kompleksov osadochnogo chekhla zapadnoy chasti shel'fa morya Laptevykh [Stratigraphy and characteristics of the sedimentary cover sequences of the western Laptev Sea shelf]. Neftegazovaya geologiya. Teoriya i praktika, 2011, vol. 6, no. 2, available at: http://www.ngtp.ru/rub/2/14_2011.pdf
Stratigraphy and lithology
Section editor – PhD in geology and mineralogy Kirichkova A.I.
| Article # 14_2011 | submitted on 03/24/2011 displayed on website on 04/12/2011 |
| 21 p. | Shkarubo S.I., Zavarzina G.A. |
| Stratigraphy and characteristics of the sedimentary cover sequences of the western Laptev Sea shelf | |
| To date there is no common point of view on the tracing of the reflectors and their stratigraphic tie within the section of the western Laptev Sea shelf. Numerous reflectors have been identified there by different researchers since CDP reflection technique was applied. These reflectors have various indices and date back to the period from Riphean to Cenozoic. New ways of the sedimentary cover stratification have appeared due to new data obtained by MAGE since 2005 (11000 km of CDP reflection lines). The author's scheme of the sedimentary framework of the western Laptev Sea shelf presented in the article is an additional argument for one of the concepts of the Laptev Sea framework.
Key words: seismic sequence, reflector, sedimentary cover, folded basement, the Laptev basin, the Eurasian basin, the West-Laptev rift system. |
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| article citation | Shkarubo S.I., Zavarzina G.A. Stratigrafiya i kharakteristika seysmicheskikh kompleksov osadochnogo chekhla zapadnoy chasti shel'fa morya Laptevykh [Stratigraphy and characteristics of the sedimentary cover sequences of the western Laptev Sea shelf]. Neftegazovaya Geologiya. Teoriya I Praktika, 2011, vol. 6, no. 2, available at: http://www.ngtp.ru/rub/2/14_2011.pdf |