Results 11 to 20 of about 1,580,450 (269)

Geochemical research of asphaltite formation in the Orenburg region [PDF]

open access: yesE3S Web of Conferences, 2019
The results of the studies of the physicochemical properties and genesis of asphaltites from the deposits of the Orenburg region are considered. Based on the data of a study on the distribution of hydrocarbon biomarkers (n-alkanes, isoprenanes, steranes,
Zakharchenko Maria   +2 more
doaj   +1 more source

Last Decade Analysis over the Impact of Loans & Deposits on the Romanian Economy: from Hook to Anchor [PDF]

open access: yesRevista de Management Comparat International, 2020
Traditionally, banking consists in attracting deposits or other repayable funds from the population and in granting loans. This paper aims to analyze the attracted deposits and the loans granted in the Romanian banking system, as well as analyze the ...
Adriana-Daniela CIUREL, Cristian ANGHEL
doaj   +1 more source

Ostracode-based aminostratigraphy and aminochronology of a tufa system in central Spain [PDF]

open access: yes, 2005
In the Priego area, central Spain, extensive tufa deposits are located in three small tributaries located at the head of the 1000 kmlong Tagus River. The deposits are originated after karst-origin running waters emerged from the confines of the canyons ...
Andrews   +46 more
core   +2 more sources

Geochemical features and formation conditions of the cupriferous sandstones of the Orenburg Pre-Urals

open access: yesЛитосфера, 2018
Object. The article describes a new geological and geochemical data for Permian host rocks and copper sandstones (CS) in Orenburg’s Pre-Urals. Methods .
Alexander V. Volkov   +4 more
doaj   +1 more source

The prospects of gold mineralization of the Precambrian complexes of the Subpolar Urals

open access: yesЛитосфера, 2018
Precambrian strata - the most important source of many types of mineral raw materials. Within their boundaries are the largest deposits of iron, gold, chromium, diamonds, platinoids, nickel, copper, polymetals, vanadium and uranium.
Yurii S. Savchuk   +2 more
doaj   +1 more source

The Influence of Radiation on Confinement Properties of Nuclear Waste Glasses

open access: yesScience and Technology of Nuclear Installations, 2020
Self-irradiation can affect durability of glasses used to immobilize high-level nuclear waste (HLW). The stability of glasses can also be indirectly affected by the radiolytic changes in contact water leading to decrease in its pH although this is ...
Viktor I. Malkovsky   +3 more
doaj   +1 more source

Structure, morphology and mechanical properties of electrodeposited composite coatings Ni–P/SiC [PDF]

open access: yes, 2010
Physical properties of the NiP/SiC deposits are discussed according to the electroplating parameters and heat treatments. The insertion of silicon carbide in the coatings does not modify their rigidity (E = 230 GPa), increases their hardness slightly (50
Alexis, Joël   +3 more
core   +4 more sources

Cupriferous basalts of the Northern Urals

open access: yesЛитосфера, 2017
Characteristics and distinctive features of cupriferous basalts in the world are given. Deposits of the Superior Lake in the United States are considered as a reference.
S. Savchuk Yury   +2 more
doaj   +1 more source

The contribution of the TSNIGRI Diamond laboratory to the scientific treasury of Yakutia

open access: yesРуды и металлы, 2022
Brief information is given on the main stages of scientific activity or the half-century history of the Research Geological Enterprise (NIGP) of PJSC ALROSA, confirming their inheritance from the initial stages of the enterprise (Diamond Laboratory ...
Alexander V. Тolstov   +1 more
doaj   +1 more source

The substitution mechanism of Au in In-, Fe- and In-Fe-bearing synthetic crystals of sphalerite, based on the data from EPMA and LA-ICP-MS study

open access: yesЛитосфера, 2019
Research subject. Sphalerite (ZnS) is a widespread mineral that can be found in various depositional environments. During formation, this mineral can accumulate minor and trace impurities, with gold being one of the most valuable component.
D. E. Tonkacheev   +5 more
doaj   +1 more source

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