Results 31 to 40 of about 2,364 (193)

TIME CONSTRAINTS ON THE FORMATION OF THE KANDALAKSHA AND KERETSK GRABENS OF THE WHITE SEA PALEO-RIFT SYSTEM FROM NEW ISOTOPIC GEOCHRONOLOGICAL DATA

open access: yesГеодинамика и тектонофизика, 2021
Initially, the age and stratigraphic position of the Tersk formation were determined with respect to the fact that this formation overlaps the Early Proterozoic granitoids.
N. B. Kuznetsov   +10 more
doaj   +1 more source

Provenance reconstructions. Article 2. Litho- and isotope-geochemical approaches and methods

open access: yesЛитосфера, 2020
Research subject. In this paper, we consider specific features of the use of litho- and isotopic-geochemical data for the purposes of provenance reconstruction.Methods and materials.
A. V. Maslov   +4 more
doaj   +1 more source

Reconstruction of the conditions for the formation of red-colored sandstones of the Tersky coast based on a comparative analysis of the structure of ancient and modern deposits (Kola Peninsula)

open access: yesVestnik MGTU, 2023
The paper presents the results of studying the Riphean red-colored sandstones of the Tersky coast of the White Sea. 21 structural elements characterizing the conditions of rock formation have been considered, including 15 ancient and 6 modern deposits ...
Neradovsky Yu. N.
doaj   +1 more source

Geochemical features of HC- occurrence in carbonates of the Minyar formation of the Upper Riphean, Bashkir Meganticlinorium, Southern Urals

open access: yesGeologicheskii vestnik, 2023
The results of a geochemical study of organic matter found in carbonate deposits of a typical section of the Minyar formation of the Upper Riphean, exposed within the Karatau structural complex in the western part of the Bashkir meganticlinorium, are ...
Valery Michailovich Gorozhanin
semanticscholar   +1 more source

The Precambrian in the Sub-Polar Urals : the chronostratigraphic aspect.

open access: yesTransactions 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
doaj   +1 more source

Unusual metasomatites (phyolithites) in the Kolvitskiy gabbro-anorthosite rock mass: composition and structural position

open access: yesЗаписки 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

open access: yesEnergy 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

GOLD POTENTIAL OF THE UPPER DEVONIAN BASAL CONGLOMERATES OF THE KANIN PENINSULA (NENETS AUTONOMOUS DISTRICT, RUSSIA) [PDF]

open access: yesМинералогия, 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
doaj   +1 more source

Rare Earths in Geological Formations of Central Region of the Dniester River Basin, Republic of Moldova

open access: yesAdvances 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

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