Ferruginous quartzite formation in the crystalline basement of the Nepa-Botuoba anteclise, Republic of Sakha (Yakutia)
https://doi.org/10.52349/0869-7892_2022_89_22-32
Abstract
Mineralogical and petrographic characteristics of hematite-magnetite ore discovered by two oil prospecting wells in the dome of the Nepa-Botuoba anteclise at a depth of about 1,5 km are discussed for the first time. Geological conditions of two deep-seated iron deposits are identified; they suggest that the latter probably belong to the Archean-Proterozoic ferruginous quartzite formation. The important role of this formation in the Early Vendian geomorphogenesis is shown. Results of U-Pb dating of zircons from granitoids surrounding ferruginous quartzite obtained from three wells are presented. The derived ages corresponding to the crystallization of melts parental for granitoids (2005 ± 12, 1969 ± 13, and 1857 ± 6 Ma) indicate their Early Proterozoic age. On the basis of the obtained materials, probable relationship of the described formation with the Late Archean-Early Proterozoic Borsalinsky Series, widespread in the Aldan Shield, was suggested.
About the Authors
V. G. Kolokol’tsev
A. P. Karpinsky Russian Geological Research Institute (VSEGEI)
Russian Federation
Russian Federation
Kolokol’tsev Vyacheslav Grigor’evich – Candidate of Geological and Mineralogical Sciences, Leading Researcher
74 Sredny Prospect, St. Petersburg, 199106
I. V. Osadchiy
A. P. Karpinsky Russian Geological Research Institute (VSEGEI)
Russian Federation
Russian Federation
Osadchiy Il’ya Vladimirovich – Head of Department
74 Sredny Prospect, St. Petersburg, 199106
A. N. Khabarov
A. P. Karpinsky Russian Geological Research Institute (VSEGEI)
Russian Federation
Russian Federation
Khabarov Andrey Nikolaevich – Head of Department
74 Sredny Prospect, St. Petersburg, 199106
References
1. Mironyuk E. P., Lyubimov B. K., Magnushevskiy E. L. Geologiya zapadnoy chasti Aldanskogo shchita [Geology of the western part of the Aldan shield]. Moscow, Nedra, 1971, 240 p.
2. Kalugin A. S., Kalugina T. S., Ivanov V. I. et al. Zhelezorudnye mestorozhdeniya Sibiri [Iron ore deposits of Siberia]. Novosibirsk, Nauka, 1981, 240 p.
3. Kornilov N. A. Nekotorye obshchie voprosy izucheniya zheleznykh rud zhelezisto-kremnistykh formatsiy dokembriya [Some general issues of studying iron ores of ferruginous-siliceous formations of the Precambrian]. Sostav i genezis zhelezistykh kvartsitov Sibiri i Dal’nego Vostoka. Novosibirsk, 1977, pp. 34–30. (In Russian).
4. Nepsko-Botuobinskaya antekliza – novaya perspektivnaya oblast’ dobychi nefti i gaza na vostoke SSSR [Nepa-Botuoba anteclise – a new promising area for oil and gas production in the east of the USSR]. Ed. by A. E. Kontorovich, V. S. Surkov, A. A. Trofimuk. Novosibirsk, Nauka, 1986, 246 p.
5. Frolov V. T. Geneticheskaya tipizatsiya morskikh otlozheniy [Genetic typification of marine deposits]. Moscow, Nedra, 1984, 222 p.
6. Chemekov Yu. F., Galitskiy V. I. Pogrebennyy rel’ef platform i metody ego izucheniya [Buried relief of platforms and methods of its study]. Leningrad, Nedra, 1974, 207 p.
7. Cheryakov I. A., Kolokol’tsev V. G., Osadchiy I. V., Khabarov A. N. Magnetitovye rudy v kristallicheskom fundamente Nepsko-Botuobinskoy anteklizy, Respublika Sakha (Yakutiya) [Magnetite ores in the crystalline basement of the Nepa-Botuoba anteclise, Republic of Sakha (Yakutia)]. Litologiya osadochnykh kompleksov Evrazii i shel’fovykh oblastey: Materialy IX Vserossiyskogo litologicheskogo soveshchaniya (s mezhdunarodnym uchastiem). Kazan’, 30 sentyabrya – 3 oktyabrya 2019 g. Kazan’, 2019, pp. 502–503. (In Russian).
8. Shadrina S. B., Denisyukov E. S., Kritskiy I. L. Gidrotermal’no-metasomaticheskie protsessy i ikh rol’ v formirovanii kollektorov v razreze vend-nizhnekembriyskikh otlozheniy Nepsko-Botuobinskoy anteklizy (na primere poiskovoy skvazhiny Kedrovogo litsenzionnogo uchastka) [Hydrothermal-metasomatic processes and their role in the formation of reservoirs in the section of the Vendian-Lower Cambrian deposits of the Nepa-Botuoba anteclise (on the example of the exploration well of the Kedrovy license area)]. Geologiya, geofizika i mineral’noe syr’e Sibiri: materialy 1-y nauchno-prakticheskoy konferentsii. Novosibirsk, 2014, vol. 2, pp. 194–197. (In Russian).
Review
For citations:
Kolokol’tsev V.G., Osadchiy I.V., Khabarov A.N. Ferruginous quartzite formation in the crystalline basement of the Nepa-Botuoba anteclise, Republic of Sakha (Yakutia). Regional Geology and Metallogeny. 2022;1(89):22-32. (In Russ.) https://doi.org/10.52349/0869-7892_2022_89_22-32
Views:
4
Email this article 