Results 11 to 20 of about 135 (116)

Sedimentology and geochemistry of the Uk Formation, Upper Riphean, the Southern Urals

open access: yesЛитосфера, 2019
Research subject. This article presents new data on carbonate facies of the upperUk subformation, Upper Riphean of theSouth Urals. A particular attention is paid to the distribution of rare-earth elements (REE) and yttrium (Y) in stromatolitic and ...
A. V. Maslov   +7 more
doaj   +3 more sources

Zircon as a Source of Genetic Information in Upper Riphean Terrigenous Deposits of Southern Timan

open access: yesThe Bulletin of Irkutsk State University. Series Earth Sciences, 2023
Zircon is an important source of genetic information. The purpose of the research is a detailed study, identification of diagnostic features, and determination of the evolution of the composition of zircon, which will make it possible to establish the sources of clastic material and the conditions for the formation of the paleontologically mute ...
O. V. Grakova   +2 more
openaire   +1 more source

THERMODYNAMIC RIPHEAN-PHANEROZOIC EVOLUTION OF THE UPPER GEOSPHERES: ATMOSPHERE, EARTH’S CRUST, HYDROSPHERE AND BIOSPHERE [PDF]

open access: yesGeological Journal, 2020
A new concept of thermodynamic Riphean-Phanerozoic evolution of upper geospheres: atmosphere, earth’s crust, hydrosphere and biosphere is presented. This evolution from Riphean to Phanerozoic is determined by the consistent cooling of the earth’s surface.
Belevtsev, R. Ya.   +7 more
openaire   +2 more sources

Provenance reconstructions. Article 1. Mineralogical and petrographic approaches and methods

open access: yesЛитосфера, 2020
Research subject. This is the first in the series of four articles, which aims to review existing provenance reconstruction tools.Methods and materials.
A. V. Maslov   +3 more
doaj   +1 more source

Structure of the Earth crust and upper mantle along seismological profile Mezen–Timan–Pechora (MEZTIMPECH)

open access: yesЛитосфера, 2020
Object of study. The article was devoted to investigation of the depth structure of the Earth’s crust and upper mantle along the Mezen–Timan–Pechora seismic profile (MEZTIMPECH), crossing the southern parts of the Mezen syneclise, the Timan ridge and the
V. V. Udoratin
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

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

Trace element behaviour in acidic leachates (acetic, nitric and hydrochloric) from siliciclastic-carbonate rocks of the Upper Riphean Uk formation in the Southern Urals

open access: yesЛитосфера, 2020
Research subject. 14 samples of limestone and one sample of carbonate-siliciclastic rock from siliciclastic-carbonate deposits of the Upper Riphean Uk Formation (the Southern Urals) were studied.Methods.
S. A. Dub   +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

Reference section of the Uk Formation of the Upper Riphean (Karatavian) in the Alatau anticlinorium (Southern Urals)

open access: yesLITHOSPHERE (Russia), 2023
Research subject. The deposits of the Uk Formation of the Upper Riphean (Karatavian) in the Alatau anticlinorium (Southern Urals) were studied in the section of the right bank of Basu river and its tribute Manaysu located to the east of the Kulmas settlement.Results.
N. D. Sergeeva   +3 more
openaire   +1 more source

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