Integrated chronostratigraphy of Proterozoic-Cambrian boundary beds in the western Anabar region, northern Siberia [PDF]
Carbonate-rich sedimentary rocks of the western Anabar region, northern Siberia, preserve an exceptional record of evolutionary and biogeochemical events near the Proterozoic/Cambrian boundary. Sedimentologically, the boundary succession can be divided
Adams, William +5 more
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Ore-forming Сonditions of the Blagodat Gold Deposit in the Riphean Metamorphic Rocks of the Yenisey Ridge According to Geochemical and Isotopic Data [PDF]
Neodymium and strontium isotopic composition and rare earth elements (REE) distribution pattern have been determined in whole rocks and minerals were separated from host metamorphic rocks and disseminated sulfide ores of the Blagodat gold deposit ...
Gertner, Igor F. +7 more
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Late Precambrian U-Pb titanite age for peak regional metamorphism and deformation (Knoydartian orogeny) in the western Moine, Scotland [PDF]
There has been controversy over the number and timing of orogenies in the Precambrian Moine block in the Scottish Caledonides since the earliest radiometric dating in the 1960s. This work challenges a recent hypothesis, that this sector of the Laurentian
Evans, J.A., Tanner, P.W.G.
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Microfossils from the late Mesoproterozoic - early Neoproterozoic Atar/EI Mreiti Group, Taoudeni Basin, Mauritania, northwestern Africa [PDF]
The well-preserved Meso-Neoproterozoic shallow marine succession of the Atar/EI Mreiti Group, in the Taoudeni Basin, Mauritania, offers a unique opportunity to investigate the mid-Proterozoic eukaryotic record in Western Africa.
Beghin, J. +6 more
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Survey data of geodynamic studies, completed during the latest 20 years in Ukraine for most of its regions, have been generalized in order to summarize the results of regional studies into geo-historical line from Eoarchean to Anthropogen.
O.B. Gintov
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Рудная минерализация габброидов Аргысукского массива (северо-запад Восточного Саяна) [PDF]
Актуальность работы обусловлена необходимостью детального петрологического исследования многочисленных потенциально рудоносных мафит-ультрамафитовых массивов Канской глыбы Восточного Саяна с целью совершенствования региональных схем корреляции, а также ...
Юричев, Алексей Николаевич
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Aspects of the Rocknest Formation, Asiak Thrust-fold Belt, Wopmay Orogen, District of Mackenzie [PDF]
Field study of the Rocknest Formation during 1981 and 1982, and laboratory study during the fall of 1982 has produced several interesting findings which are summarized in this report.
Grotzinger, J. P., Hoffman, P. F.
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New data on mineralogy of granitic pegmatites Mt. Soroch′ya, Southern Urals
Mineralogy of granitic pegmatites of Mt. Soroch′ya near Zlatoust which ore included in the Upper Riphean metamorphic mica-garnet, staurolite-garnet, and wollastonite-sillimanite-garnet schists of the Kuvash Formation is examined. Zonal pegmatite veins 30-
V. I. Popova +2 more
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Development of bryozoaus (bryozoa type) on the border of devonian carboniferous in western part of the altai sayanskaya folded area [PDF]
The features of pearlside development in Late Devonian and Early Carboniferous time in western part of the Altai-Sayanskaya folded area have been revealed.
Tolokonnikova, Z. A.
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Consideration is given to results of geochemical analysis of organic matter and oils of the Proterozoic (the RF-V complex) and the Paleozoic (the pay intervals D2, D3, C1-2) of the eastern part of the Volga-Urals petroleum basin.
Dmitrii D. Kozhanov, Mariya Bolshakova
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