Results 21 to 30 of about 90,937 (258)

DEVONIAN-CARBONIFEROUS MAGMATISM AND METALLOGENY IN THE SOUTH URAL ACCRETIONARY-COLLISIONAL SYSTEM

open access: yesГеодинамика и тектонофизика, 2021
The oceanic stage in the history of the South Urals completed in the Ordovician – Early Silurian. The Ordovician through Devonian events in the region included the formation of an island arc in the East Ural zone from the Middle Ordovician to Silurian ...
A. M. Kosarev   +9 more
doaj   +1 more source

Mineralogical Features of Ore Diagenites in the Urals Massive Sulfide Deposits, Russia

open access: yesMinerals, 2019
In weakly metamorphosed massive sulfide deposits of the Urals (Dergamysh, Yubileynoe, Yaman-Kasy, Molodezhnoe, Valentorskoe, Aleksandrinskoe, Saf’yanovskoe), banded sulfides (ore diagenites) are recognized as the products of seafloor supergene alteration
V. Maslennikov   +10 more
semanticscholar   +1 more source

Subseasonal prediction of winter precipitation in southern China using the early November snowpack over the Urals

open access: yes, 2020
Evolution of the autumn snowpack has been considered as a potential source for the subseasonal predictability of winter surface air temperature, but its linkage to precipitation variability has been less well discussed.
Jingyi Li, Fei Li, Huijun Wang
semanticscholar   +1 more source

Chemostratigraphy of Neoproterozoic carbonates: implications for 'blind dating' [PDF]

open access: yes, 2001
The delta C-13(carb) and Sr-87/Sr-86 secular variations in Neoproteozoic seawater have been used for the purpose of 'isotope stratigraphy' but there are a number of problems that can preclude its routine use.
Aharon P.   +55 more
core   +1 more source

Foraminiferal marker taxa and their correlation potential for definition of the lower Serpukhovian boundary in the Urals

open access: yesЛитосфера, 2020
Research subject. The choice of the marker and the GSSP (Global Boundary Stratotype Section and Point) of the base of the Serpukhovian is currently one of the most urgent tasks of international stratigraphy.
E. I. Kulagina, E. Yu. Bashlykova
doaj   +1 more source

Convergent flow in a two-layer system and mountain building [PDF]

open access: yes, 2010
With the purpose of modelling the process of mountain building, we investigate the evolution of the ridge produced by the convergent motion of a system consisting of two layers of liquids that differ in density and viscosity to simulate the crust and the
Gratton, Julio, Perazzo, Carlos Alberto
core   +4 more sources

Trace Elements of Cu-(Fe)-Sulfide Inclusions in Bronze Age Copper Slags from South Urals and Kazakhstan: Ore Sources and Alloying Additions

open access: yes, 2019
In the paper, the results of an investigation into trace elements found in slag sulfides from 14 archaeological Bronze Age settlements of the Cis-Urals, Trans-Urals, and North and Central Kazakhstan are presented.
D. Artemyev, M. Ankushev
semanticscholar   +1 more source

Platinum-Group Minerals of Pt-Placer Deposits Associated with the Svetloborsky Ural-Alaskan Type Massif, Middle Urals, Russia

open access: yesMinerals, 2019
The alteration of platinum group minerals (PGM) of eluval, proximal, and distal placers associated with the Ural-Alaskan type clinopyroxenite-dunite massifs were studied.
S. Stepanov   +5 more
semanticscholar   +1 more source

Public Participation in higher Education: The Role of Universities

open access: yesМодернизация, инновация, развитие, 2022
Purpose: the aim of this paper is to identify the problems of low effectiveness of public participation in higher education on the basis of the analysis of theoretical-methodological and empirical literature.Methods: this study is based on the ...
N. Y. Vlasova   +2 more
doaj   +1 more source

The soil temperature effect on carbon dioxide emissions in crops of various agricultural plants and fallows [PDF]

open access: yesBIO Web of Conferences
The world’s population is currently facing a large number of problems that need to be resolved as soon as possible. One of these problems is climate change, which is associated with an increase in the concentration of greenhouse gases in the upper ...
Demin Evgeny   +4 more
doaj   +1 more source

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