Results 21 to 30 of about 1,847 (178)
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
doaj +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
The Cambrian-Ordovician siliciclastic platform of the Balcarce Formation (Tandilia System, Argentina) : Facies, trace fossils, palaeoenvironments and sequence stratigraphy [PDF]
, 2003 The Lower Palaeozoic sedimentary cover of the Tandilia (Balcarce Formation) is made up of thick quartz arenite beds together with kaolinitic claystones and thin fine-grained conglomerates.
Poiré, D. G. +3 more
core +2 more sources
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
Ediacaran Microfossils from the Ura Formation, Baikal-Patom Uplift, Siberia: Taxonomy and Biostratigraphic Significance [PDF]
, 2014 Abundant and diverse microfossils from shales of the uppermost Ura Formation, central Siberia, document early to middle Ediacaran life along the southeastern margin of the Siberian Platform.
Knoll, Andrew Herbert +2 more
core +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
doaj +1 more source
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
Evaporites and the salinity of the ocean during the Phanerozoic: Implications for climate, ocean circulation and life [PDF]
, 2005 A compilation of data on volumes and masses of evaporite deposits is used as the basis for reconstruction of the salinity of the ocean in the past.
Balukhovsky, A. N. +5 more
core +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