Results 21 to 30 of about 1,820 (158)
The Precambrian in the Sub-Polar Urals : the chronostratigraphic aspect.
Transactions of the Karelian Research Centre of the Russian Academy of Sciences, 2019 New geochronological data on the Lower and Upper Proterozoic complexes of the Sub-Polar Urals are presented, where the outcropping Precambrian section in the Lyapin anticlinoriumis the stratotype for the entire Timan-Northern Urals region.
Александр Михайлович Пыстин +3 more
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MICROPALEONTOLOGY OF THE LOWER MESOPROTEROZOIC ROPER GROUP, AUSTRALIA, AND IMPLICATIONS FOR EARLY EUKARYOTIC EVOLUTION [PDF]
, 2016 ELiTE: Early Life Traces, Evolution, and Implications for ...
Javaux, Emmanuelle, Knoll, Andrew H.
core +1 more source
Записки Горного института, 2021 Complex mineralogical, geochemical, and geological-structural characteristics of a rare collection stone of violet color, phyolithite, in the southwestern part of the Kola Peninsula.
Evgenii N. Terekhov +4 more
doaj +1 more source
A fishtail well design for cyclic steam injection—A case study from Yarega heavy oil field in Russia
Energy Science &Engineering, Volume 7, Issue 6, Page 2437-2455, December 2019., 2019 The joint application of cyclic steam injection technology with fishtail wells assists in reducing the travel time the mobilized oil takes to arrive at a well perforation. Our results demonstrate that the synergy between these two strategies can further improve recoveries in heavy oil reservoirs. In addition to the technical advantage of this strategy,
German A. Abzaletdinov +4 more
wiley +1 more source
Advances in Geology, Volume 2015, Issue 1, 2015., 2015 In the different varieties of crystalline basement of Archean and Proterozoic age and in Vendian (Ediacaran) basal layers of platform coverture in the Central Basin of the Dniester River were found relatively high concentrations of Lanthanum, Cerium, Yttrium, Ytterbium, and Scandium.
Aurelia Popuiac, Giovanni Martinelli
wiley +1 more source
GOLD POTENTIAL OF THE UPPER DEVONIAN BASAL CONGLOMERATES OF THE KANIN PENINSULA (NENETS AUTONOMOUS DISTRICT, RUSSIA) [PDF]
Минералогия, 2022 Native gold and garnets are described for the first time in heavy concentrates from coarse-grained sediments of the Upper Devonian Tayaokuyakha Formation, which occurs on the eroded Upper Riphean schists with angular and azimuthal unconformity (middle ...
M.A. Pavlova +5 more
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International Journal of Oceanography, Volume 2011, Issue 1, 2011., 2011 In Yanshan, located in the northern part of North China, Mesoproterozoic carbonate sequences (1.6–1.4 Ga) form a 10, 000 m thick succession in an aulacogen basin. Carbon and oxygen isotope (δ13O and δ18O, resp.) data were obtained from 110 carbonate samples across three sections of these Mesoproterozoic deposits. From the early to late Mesoproterozoic,
Kuang Hongwei +6 more
wiley +1 more source
Литосфера, 2015 We considered the issues of the structure, material composition and secondary changes of Karuyarvinskaya suite rocks of riphean Kildin series at Peninsula Srednii. There is the characteristic of stromatolithic biostromes Stratifera aff.
J. V. Mikhailenko +3 more
doaj +2 more sources
THE RIPHEAN METESHIKHA ISLAND-ARC PERIDOTITE-GABBRO MASSIF (western Transbaikalia) [PDF]
Геология и геофизика, 2015 Abstract New data are presented on the geologic structure, age, petrogeochemical composition, and conditions of formation of the Late Proterozoic Meteshikha ultramafic–mafic pluton of the Ikat complex. Mafic rocks are the main rocks of the massif, whereas ultramafic rocks are secondary; both of them correspond to two intrusive phases ...
D.A. Orsoev +6 more
openaire +2 more sources
Геодинамика и тектонофизикаThe paper presents the results of U-Pb isotope dating of zircons extracted from rocks of the southern part of the Baltic Shield (Early Riphean conglomerates and Paleoproterozoic secondary quartzites) and makes a comparison of these results with the ages ...
E. N. Terekhov +9 more
doaj +1 more source