The model of the Bodaibo graben formation: geological and geophysical aspects

The problem of the Bodaibo graben formation has been considered within the framework of the proposed tectonic scheme of the Baikal-Patom fold belt crystalline basement — the Paleoproterozoic Baikal-Viluisk granulite-gneiss belt, which divides the foundation of the Siberian platform into Anabar-Mirninsky, Nepsko-Botuobinsky and Aldan-Stanovoi geoblocks. The Baikal-Viluisk granulite-gneiss belt is expressed by a system of blocks having a common northeastern direction and forming uplifts and grabens. As a result of the transpession interaction of the Nepsko-Botuobinsky and Anabar-Myrninsky geoblocks with Aldan-Stanovoi one in the Paleoproterozoic, the frontal part of the former was elevated with the formation of metamorphic rocks of Sarma-Tonod zone of outcrops and with the simultaneous descending of the Aldan-Stanovoi geoblock marginal part and the formation of the Olokit and Bodaibo grabens. The Olokyt graben was filled with the detrital material from the Nepsko-Botuobinsky and Anabar-Mirninsky geoblocks, and the Bodaibo graben — mainly by the products of the metamorphic rocks destruction of the Aldano-Stanovoy shield, including the gold-bearing metabasite complexes.

1. Bulgatov A.N., Gordienko TV. Terreyny Baykal'skoy gornoy oblasti i razmeshcheniye v ikh predelakli mestorozhdeniy zolota [Terrains of the Baikal mountain region and the placement of gold deposits within them]. Geologiya rudnykh mestorozhdeniy — [Geology of Ore Deposits], 1999, vol. 41, no. 3, pp. 230-240. (In Russian).

2. Bush V.A. Stroyeniye kristallicheskogo firndamenta rayona sochleneniya severnogo okonchaniya Baykalo-Patomskogo skladchatogo poyasa s Sibirskim kratonom [The structure of the crystalline basement of the articulation region of the northern end of the Baikal-Patom fold belt with the Siberian craton]. Geotektonika — [Geotectonics], 2011, no. 6, pp. 58—71. (In Russian).

3. Wood V.T., Popov N.P. Gigantskoye mestorozhdeniye zolota Sukhoy Tog (Sibir') [Sukhoi Tog (Siberia) giant gold deposit]. Geologiya igeqfizika — [Geology and Geophysics], 2006, vol. 47, no. 3, pp. 315—341. (In Russian).

4. Gafarov R.A., Teites A.M., Fedorovsky V.S., Prozorov Yu.L, Savinskaya M.S., Savinsky K.A. Tektonicheskoye rayonirovaniye fundamenta Sibirskoy platformy i etapy stanovleniya yego kontinental'noy kory [Tectonic zoning of the basement of the Siberian platform and the stages of formation of its continental crust]. Geotektonika — [Geotectonics], 1978, no. 1, pp. 43—57. (In Russian).

5. Geologiya i seysmichnost' zony BAM: Glubinnoye stroyeniye [Geology and seismicity of the BAM zone: Deep structure]. Editors-in-chief: N.N. Puzyrev, M.M. Mandelbaum, Novosibirsk, Nauka Publ., 1984, 174 p. (In Russian).

6. Eaverov N.P, Prokofiev V.Yu., Distler V.V. Novyye dannyye ob usloviyakh rudootlozheniya i sostave rudoobrazuyushchikh flyuidov zoloto-platinovogo mestorozhdeniya Sukhoy Log [New data on the conditions of ore deposition and composition of the ore-forming fluids of the Sukhoi Log gold-platinum deposit]. Doklady Rossiyskoy Akademii Nauk — [Reports of the Russian Academy of Sciences], 2000, vol. 371, no. 1, pp. 88—92. (In Russian).

7. Lishnevsky E.N., Distler V.V. Glubinnoye stroyeniye zemnoy kory rayona zoloto-platinovogo mestorozhdeniya Sukhoy Log po geologo-geofizicheskim dannym (Vostochnaya Sibir', Rossiya) [The deep structure of the Earth's crust in the Sukhoi Log gold-platinum deposit region according to geological and geophysical data (Eastern Siberia, Russia)]. Geologiya rudnykh mestorozhdeniy — [Geology of Ore Deposits], 2004, vol. 46, no. 1, pp. 88-104. (In Russian).

8. Makarochkina Z.P. Osobennosti fizicheskikh poley nad verkhneproterozoyskimi i postproterozoyskimi intruziyami Vitimo-Patomskogo rayona [Features of physical fields over the Upper Proterozoic and Post-Proterozoic intrusions of the Vitimo-Patomsky region]. Endogennyyepoleznyye iskopayemyye Sayano-Baykal'skoy gornoy oblasti — [Endogenous minerals of the Sayano-Baikal mountain region], Irkutsk, Vost.-Sib. kn. izd-vo [Irkutsk, East-Sib. book, publishing house], 1974, pp. 40—45. (In Russian).

9. Malykh V.S., Aleksandrov A.L., Makarochkina Z.P. Malyye rudonosnyye intruzii biotitovykh granitov poslegeosinklinal'nogo razvitiya Baykal'skoy skladchatoy oblasti i kriterii ikh vydeleniya [Small ore-bearing intrusions of biotite granites after the neosynclinal development of the Baikal folded region and the criteria for their isolation]. Endogennyye poleznyye iskopayemyye Sayano-Baykal'skoy gornoy oblasti — [Endogenous minerals of the Sayano-Baikal mountain region], Irkutsk, Vost.-Sib. kn. izd-vo [Irkutsk, East-Sib. book, publishing house], 1974, pp. 17—31. (In Russian).

10. Migachev I.F., Karpenko LA., Ivanov A.I., Cheremisin A.A., Kulikov D.A. Zolotorudnoye mestorozhdeniye Sukhoy Log — pereotsenka i otsenka prognoza rudnogo polya i rayona [SuJdioi Log gold deposit - reassessment and evaluation of the ore field and district forecast]. Otechestvennaya geologiya — [Domestic Geology], 2008, no. 2, pp. 55—67. (In Russian).

11. Nemerov V.K., Stanevich A.M. Evolyutsiya rifey-vendskikh obstanovok biolitogeneza Baykal'skoy gornoy oblasti [The evolution of the Riphean — Vendian settings of the biolithogenesis of the Baikal mountain region]. Geologiya i geqfizika — [Geology and Geophysics], 2001, vol. 42, no. 3, pp. 456—470. (In Russian).

12. Orsoev D.A., Bulgatov A.N., Gordienko TV. О prirode platinovoy mineralizatsii mestorozhdeniya Sukhoy Log (Vostochnaya Sibir', Rossiya) [On the nature of the platinum mineralization of the Sukhoi Log deposit (Eastern Siberia, Russia)]. Otechestvennaya geologiya — [Domestic Geology], 2013, no. 3, pp. 85—90. (In Russian).

13. Parfenov L.M., Berzin N.A., Khanchuk A.I. Model' formirovaniya orogennykh poyasov Tsentral'noy i Severo-Vostochnoy Azii [Model of the formation of orogenic belts of Central and Northeast Asia]. Tikhookeanskaya geologiya — [Pacific Geology], 2003, vol. 22, no. 6, pp. 7-41. (In Russian).

14. Petrishchevsky A.M. Gravitatsionnyy metod otsenki reologicheskikh svoystv zemnoy kory i verkhney mantii (v konvergentnykh i plyumovykh strukturakh Severo-Vostochnoy Azii) — [Gravitational method of assessing the Theological properties of the earth's crust and upper mantle (in the convergent and plume structures of Northeast Asia)], M., Nauka Publ., 2013, 192 p. (In Russian).

15. Pospeev A.V. Geoelektricheskiy razrez [Geoelectric section]. Geologiya zony BAM — [Geology of the BAM zone], L., Nedra Publ., 1988, vol. 1, pp. 387-392. (In Russian).

16. Rosen OM, Manakov AV, Zinchuk N.N. Sibirskiy kraton: formirovaniye, almazonosnosf [Siberian craton: formation, diamond content], M., Nauchnyy mir Publ., 2006, 212 p. (In Russian).

17. Rytsk E.Yu., Kovach V.P., Yarmolyuk V.V., Kovalenko V.I., Bogomolov E.S., Kotov A.B. Izotopnaya stmktura i evolyutsiya kontinental'noy kory Vostochno-Zabaykal'skogo segmenta Tsentral'no-Aziatskogo skladchatogo poyasa [The isotopic stmcture and evolution of the continental cmst of the East-Transbaikalian segment of the Central Asian fold belt]. Geotektonika — [Geotectonics], 2011, no. 5, pp. 17—51. (In Russian).

18. Salop L.I. Geologiya Baykal'skoy gornoy oblasti [Geology of the Baikal mountain region]. Vol. 1. M., Nedra Publ., 1964, 515 p. (In Russian).

19. StognyCA., StognyV.V. Geofizicheskiye polya vostochnoy chasti Severn-Aziatskogo kratona [Geophysical fields of the eastern part of the North Asian craton], Yakutsk, Sakhapoligrafizdat Publ., 2005, 174 p. (In Russian).

20. StognyCA., StognyV.V. Stmktura kristallicheskogo fundamenta Baykalo-Patomskogo skladchatogo poyasa i rol' regional'nykh glubinnykh razlomov v formirovanii zolotomdnogo mestorozhdeniya Sukhoy Log (Vostochnaya Sibir') [The stmcture of the crystalline basement of the Baikal-Patom fold belt and the role of regional deep faults in the formation of the Sukhoi Log gold deposit (Eastern Siberia)]. Geqfizika — [Geophysics]. 2016, no. 3, pp. 73—77. (In Russian).

21. Tektonika, geodinamika i metallogeniya territorii Respubliki Sakha (Yakutiya) [Tectonics, geodynamics and metallogeny of the territory of the Republic of Sakha (Yakutia)]. M., MAIK Nauka/Interperiodika Publ., 2001, 571 p. (In Russian).

22. Tektonicheskoye stroyeniye Yakutskoy ASSR [Tectonic structure of the Yakut Autonomous Soviet Socialist Republic]. Ed: К.Б. Mokshantsev, D.K. Gornstein, G.S. Gusev. M., Nauka Publ., 1964. 290 p. (In Russian).

23. Khomentovsky V.V., Postnikov A.A. Neoproterozoyskaya istoriya razvitiya Baykalo-Vilyuyskoy vetvi Paleoaziatskogo okeana [Neoproterozoic history of the development of the Baikal-Vilyui branch of the Paleo-Asian Ocean]. Geotektonika — [Geotectonics], 2001, no. 3, pp. 3—21. (In Russian).

24. Shatsky N.S. Ob otnoshenii kembriya k proterozoyu i о baykal'skoy skladchatosti [On the attitude of the Cambrian to the Proterozoic and the Baikal folding]. Izbrannyye trudy — [Selected Works], Vol. 1, M., Izd-vo AN SSSR [Publishing House of the Academy of Sciences of the USSR], 1963, 621 p. (In Russian).