...V. P. Mironov; S. I. Mityukhin Luminescence, absorption, and internal morphology of diamonds from alluvium of tributaries of the Nizhnyaya Tunguska River have been studied and compared with the same parameters of diamonds from the Malaya Botuobiya and Daldyn-Alakit kimberlite fields, closest...

... – Kuoika River, Ulakhan-Kurung-Yuryakh area; 2 – Lesotho (pipe 257), Taezhnaya, Amakinskaya, and Internatsional’naya (Malaya Botuobiya region) pIpes. 3 – Lesotho (pipe RA-14), Imeni XXIII S’ezda KPSS, Dachnaya, Mir (Malaya Botuobiya region), Aikhal, and Yubileinaya (Alakit-Markha kimberlite field...

... in Fig. 1 ) on the eastern flank of the Anabar arch was traced at a distance of about 200 km along the bitumen-saturated Vendian and lower Cambrian outcrops on the surface in the Malaya Kuonamka and Bol’shaya Kuonamka rivers basin. The Vendian bituminous horizon is confined to dolomites of erosion zone...

... diamonds from the Mir pipe (Malaya Botuobiya region). We used fragments of a hand specimen of kimberlite, 5–8 mm in size, with porphyritic texture from the Nyurbinskaya pipe (Nakyn field). We purposely took a kimberlite of typical habit, without any signs of physical and chemical erosion: As erosion...

... compositions of kimberlites. Within each kimberlite field in both southern and northern Yakutian Province, there are pipes and even clusters of pipes filled by kimberlites with relatively high or low contents of TiO 2 , FeOtot, and K 2 O. For example, in the Malaya Botuobiya field the kimberlites from the Mir...

... Olenek uplift, outcrops in the drainage area of Khorbusuonka River Limestones, dolomites, clayey carbonate rocks Vendian, Khatyspyt Formation 10 Olenek uplift, outcrops in the vicinity of the Muna, Molodo, Malaya Kuonamka, Chomordakh, Rastorgui, and Kyulenke Rivers; boreholes in the Sektelyakh area...

..., Alakit–Markha, and Olenek regions; 3 , composition of Kurung Cr-spinels from the Upper Paleozoic deposits of the Malaya Botuobiya region, Kurung-Yuryakh River. ...

... and geophysical implications. Magnetic viscosity of rocks in situ was studied at a site in the Irelyakh River–Chuonalyr Brook interfluve in the Malaya Botuobiya area, 30 km west of Mirnyi city ( Fig. 1 ). The superparamagnetic rocks consist of outsized basaltic tuff of the Triassic Chichikan Formation...

... flexuous zones of transition between superrank structures of the opposite signs. For example, north of the Trans-Siberian lineament, there are the Kureika and Vilyui syneclises, and south of it, the Baikit, Nepa-Botuobiya, and Aldan anteclises; west of the Taimyr-Baikal lineament, there are the Kureika...

... of the existence of an ancient collector that affected the subsequent DIM distribution was long discussed for the Malaya Botuobiya diamond region (Yakutia) [ 31 ] and was finally corroborated [ 32 ]. This explained the origin of DIM haloes that have no direct spatial relationship with kimberlite bodies [ 27...

... the portions of SiO 2 , CaO, and total Fe are lower than those in dolerites. Fig. 1. Tectonic scheme of the eastern Siberian Platform. 1 , 2 – boundaries of: 1 – paleorift system, 2 – Vilyui-Markha zone; 3 – kimberlite fields: 1 – Malaya Botuobiya, 2 – Nakyn, 3 – Alakit, 4 – Daldyn, 5 – Muna...

... folliculosa, Riccisporites tuberculatus, Aratrisporites fischeri, Ovalipollis, Chordasporites , and more abundant Cycadopites and Ginkgocycadophytus . The assemblage is also very similar to the coeval assemblages of the Malaya Botuobiya region on the northeastern margin of the Angara-Vilyui trough [ 40...

..., the following formations are recognized in various areas of occurrence of the group: Levaya Padra, Bol’shaya Padra, Malaya Padra, Tallai, Shumnyi, Delyun, and Tuluin. The coarse clastics of the Shumnyi, Levaya Padra, and Delyun Formations unconformably overlie the rocks of the Muya assemblage and the Kilyana...

.... There are several diamondiferous districts within the YDP: Malaya Botuobiya, Middle Markha, Muna-Tyung, and Anabar, with kimberlite fields distinguished there, formed by accumulations of kimberlite pipes and dikes [ 2 ]. Oil geology locates this area within the Lena-Tunguska petroleum province (PP). The YDP...

... and picroilmenite, though the grain periphery is slightly enriched in MgO, TiO 2 , and, in places, Cr 2 O 3 and MnO and is depleted in iron. Vuiko and Gorev [ 11 ], who studied similar picroilmenites of the Khatyryk aureole (Malaya Botuobiya region), considered their spiny surfaces secondary, formed under...

... in the delta of the Lena River in 2009 showed a significant amount of volcanogenic material in Upper Triassic deposits (Osipai Formation), which were earlier considered ( Egorov et al., 2001 ) to be alternating gravelstones, sandstones, and siltstones. The diamond-bearing coarse-clastic basal deposits...

... ( Fig. 1 , exp. 253) at the watershed between the Malaya Chuya River and the Osinovskii Brook ( Borovikov and Blazhnova, 1983 ). Here, the intercalates of spotted organogenous greenish- and cherry-gray limestones often bear Angarella banks. The zone is characterized by the abundance of brachiopods...

... of between 150 and 1,650 m along the Irelyakh and Malaya Botuobiya rivers. Both have been dredged and generally produce good quality diamonds. Other retained secondary deposits that are also proximal and intimately related to the primary kimberlite sources include the Kluch Piropovy (av. grade 0.55 ct/m...