Zobrazeno 1 - 10
of 72
pro vyhledávání: '"E. M. Spiridonov"'
Autor:
E. M. Spiridonov
Publikováno v:
Известия высших учебных заведений: Геология и разведка, Vol 0, Iss 2, Pp 15-21 (2017)
Plagio rhyolites of the Pre-Late Jurassic dyke contain restitegamet (cribrate inter grow ths of almandinespessartine and quartz) and ferrocordierite. The garnets of such habit and composition and with such kind of zonality - the content of Mg increas
Externí odkaz:
https://doaj.org/article/6a990c09cbd4474fbbc51395573bb1b4
Autor:
E. V. Putintseva, E. M. Spiridonov
Publikováno v:
Известия высших учебных заведений: Геология и разведка, Vol 0, Iss 4, Pp 82-85 (2015)
The extremely rare penetration twins of olivine for (031) and (011) in alkaline melanocratic basalts of East Mongolia from the collection of the famous scientist-traveller N.M. Przhevalsky, which is stored in the museum of the department of petrograp
Externí odkaz:
https://doaj.org/article/c8fae7709626412a8973c9fbd47d4e4a
Autor:
A. A. Serova, E. M. Spiridonov
Publikováno v:
Известия высших учебных заведений: Геология и разведка, Vol 0, Iss 3, Pp 83-85 (2015)
Baddeleyite has been found in disseminated sulfide ores of the Noril’sk ore field within the pneumatholytic aureoles presented above the sulfide droplets. The baddeleyite occurs as lamellae within ilmenite crystals. It contains «1 wt.% HfO2. This
Externí odkaz:
https://doaj.org/article/44574ac394d6423db8c1380cd6f45086
Publikováno v:
Moscow University Bulletin. Series 4. Geology. :70-82
The unique magmatogenic putoranite ores are developed within deep horizons (>1750 m) of the northeastern flank of the October deposit in the Norilsk ore field. Th ese are coarse-grained putoranite aggregates with lamellaes of moihoekite and isolated
Autor:
E. M. Spiridonov, S. N. Belyakov, Yu. A. Ivanova, K. V. Egorov, N. N. Korotaeva, D. I. Naumov, O. V. Yapaskurt
Publikováno v:
Geology of Ore Deposits. 64:495-502
Publikováno v:
Moscow University Geology Bulletin. 77:426-440
Autor:
E. M. Spiridonov, E. V. Putintseva
Publikováno v:
Moscow University Bulletin. Series 4. Geology. 1:98-108
The hypabissal intrusive of Mt. Kastel fayalite plagiogranites intruded in the center of the South Bank uplift within Crimean kimmerides. Plagiogranites crosscut and local metamorphose the complexly folded flysch mass of Tauride series T2-J1, the bod
Publikováno v:
Geology of Ore Deposits. 63:842-849
Autor:
E. M. Spiridonov, E. V. Putintseva
Publikováno v:
Moscow University Geology Bulletin. 76:566-577
Publikováno v:
Geology of Ore Deposits. 62:638-651
Chevkinite-(Се) and perrierite-(Се), which are characteristic minerals of alkaline igneous rocks and high-temperature alkaline alterations, are typical accessory minerals in the Mesozoic island-arc gabbros of the Crimean Mountains. The early magm