... is no longer used in the Baikit zone; but instead, the Litvintsevo Formation was established here by correlation. 16 9 2008 29 4 2009 © 2010, IGM, Siberian Branch of the RAS 2010 IGM, Siberian Branch of the RAS stratigraphy Cambrian deposits stratigraphic chart correlation facies...

... of carbonate rocks, mainly dolomites, 230 m in thickness. By the position in the section, it is conventionally correlated with the Litvintsevo Formation. The portion 2100–1758 m is made up of terrigenous-carbonate rocks (mudstones, marls, siltstones, rarely, carbonate interlayers) with an insignificant...

... amphitheater ( Geology…, 1960 ) and the Irkutsk petroleum basin ( Samsonov, 1975 ). That work made basis for the present Cambrian stratigraphic chart, with the Moty, Usoliye, Belaya, Bulai, Angara, Litvintsevo, and Upper Lena formations. The discovery of the Markovo oil field (Osa reservoir, Usoliye Formation...

... craton comprises the Usol’e, Belaya, Bulai, and Angara–Litvintsevo reservoirs of salt-bearing carbonate rocks that belong to the respective formations. The reservoirs include five or six porous, porous-cavernous, or weakly fractured sulfate-carbonate or carbonate intersalt aquifers that are much less...

..., Belaya, Bulai, Angara, and Litvintsevo Formations (salt-free equivalents) of dolomites, pure and clayey-silty limestones, sandstones, siltstones, and breccia (anhydrite, halite, and mixed salt and clastic rocks in drill sections); Evenki Formation of conglomerate (at base), sandstones, siltstones, silty...

... and Moiseev, 2019 ). The Namana horizon, overlying the Angara Formation rests on the top of the lower Cambrian section. The overlying Zeledeevo horizon is transitional. It is composed of undivided lower and middle Cambrian successions. The Litvintsevo Formation identified within the Namana horizon...

... inferred the existence of a large rise that originated in the Ordovician and had completed its evolution by the onset of deposition of the Middle-Late Carboniferous — Permian coaliferous formation proceeding from analysis of Ordovician and Silurian deposits. Offman [ 2 ], who worked on the Tetere...

..., the Vendian-Cambrian Tetere Formation, the Cambrian lower and middle Usol’ye subformations, and a Cambrian halogene-carbonate complex (upper Usol’ye subformation and Bel’sk, Bulai, Angara, and Litvintsevo formations) [ 2 ]. Hydrocarbon pools in the Vendian terrigenous and Vendian-Cambrian carbonate...

... Cambrian sections in the adjacent areas of the Yenisei Ridge and Siberian Platform (Litvintsevo, Letnyaya, Verkholensk, and Evenki Formations and their analogs). Extensive CDP seismic surveying was carried out on the left bank of the Yenisei River from the middle 1980s to the early 1990s...

... Formation, Cambrian; 10 – dolomites, Litvintsevo Formation, Cambrian; 11 – dolomites, rock salts with layers of mudstones and siltstones, Angara Formation, Cambrian; 12 – massive dolomites, Bulai Formation, Cambrian; 13 – dolomites, anhydrides, layers of salts, Belaya Formation, Cambrian; 14...

... 2–3 vl); 10 , dolomites, Litvintsevo Formation (Є 1–2 lt); 11 , dolomites and rock salts with mudstone and siltstone intercalates, Angara Formation (Є 1 an); 12 , massive dolomites, Bulai Formation (Є 1 bl); 13 , dolomites, anhydrites, and salt intercalates, Bel’sk Formation (Є 1 bls); 14...

... (Usolka, Belaya, Bulai, Angara, and Litvintsevo). The latter formation underlies the Middle-Upper Cambrian Evenki Formation of redbed marl. The total thickness of the Cambrian section is 1320 to 1770 m. The potential of the Chunya basin is associated with Riphean, Vendian, and Upper Vendian-Lower...

... of the Agalevo formations (Lower Angara zone) as well as the Litvintsevo and Angara formations (Baikit zone). The lower unit of the Kolchum Formation is correlated with the Paidugina Formation in the Vostok-1 and Vostok-3 wells. The true thickness of the formation, using dip angles varies from 365 m (Vostok...

... varies from few tens of centimeters to 0.5 m. They lie mainly over limestones of the Litvintsevo Formation in structural eluvium. The main component of this boulder-pebble bed is whitish-gray powder-like “lime flour” with gruss particles — the product of physicochemical weathering of local bedrocks ( Fig...

... in Lemok BH-1, naphthide shows, viscous oils, and malthas have been found (see Table 3 , Fig. 10 ) in the Lower Cambrian deposits of the Litvintsevo, Belaya, and Bulai Formations, which compositionally can be attributed to family I-1 (Litvintsevo, Belaya, and Bulai Formations) or family I-2(?) (Usol’e...