Results 91 to 100 of about 2,077,960 (318)

NEW FINDINGS OF RARE MINERALS IN PEGMATITES OF VISHNEVYE MOUNTAINS IN THE SOUTHERN URALS [PDF]

open access: yesМинералогия, 2019
In addition to previously known 221 minerals, 11 new rare minerals were identified in alkali pegmatites of the Vishnevye Mountains. Yttrialite-(Y)Y2(Si2O7) and huanghoite-(Ce) aCe(CO3 2F were found for the first time in the Urals.
V.I. Popova   +6 more
doaj  

GENETIC DIVERSITY OF SIBERIAN STONE PINE UNDER INTRODUCTION IN THE SOUTH URALS AND BASHKIR CIS-URALS

open access: yesСибирский лесной журнал, 2016
Allozyme polymorphism of Siberian stone pine Pinus sibirica Du Tour has been studied in 14 artificial stands in the South Urals and Bashkir Cis-Urals on the base of 7 gene-enzyme system analysis. The following values of genetic diversity are determined: mean number of alleles per locus (A) constitutes 1.69±0.08; portion of polymorphic loci (P95) – 50.0
Z. Kh. Shigapov   +4 more
openaire   +2 more sources

Tree Stands and Their Productivity Dynamics at the Upper Growing Limit in Khibiny on the Background of Modern Climate Changes [PDF]

open access: yes, 2019
Within the ecotone of the upper limit of woody vegetation on the southeastern macroslope of the Khibiny Mountain ridge (Kola Peninsula), the spatial and age structure, as well as features of the phytomass accumulation of spruce–birch stands, were studied.
Bubnov, M. O.   +4 more
core  

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. A. Artemyev, M. Ankushev
semanticscholar   +1 more source

MINERALS OF THE ALUNITE SUPERGROUP IN ORES DIAGENITES OF THE YAMAN-KASYMASSIVE SULFIDE DEPOSIT (SOUTH URAL) [PDF]

open access: yesМинералогия, 2019
Minerals of the alunite supergroup (alunite, plumbogummite, hinsdalite, crandallite) were found in ore diagenites of the Yaman-Kasy massive sulfide deposit, South Urals.
N.P. Safina, V.A. Kotlyarov, I.A. Blinov
doaj   +1 more source

Trace-element geochemistry of molybdenite from porphyry Cu deposits of the Birgilda-Tomino ore cluster (South Urals, Russia)

open access: yesMineralogical magazine, 2018
Mineralogical, electron microprobe analysis and laser ablation-inductively coupled plasma-mass spectrometry data from molybdenite within two porphyry copper deposits (Kalinovskoe and Birgilda) of the Birgilda-Tomino ore cluster (South Urals) are ...
O. Plotinskaya   +5 more
semanticscholar   +1 more source

Dispersion Analysis of Silver Thiogallate in a Broad Mid‐Infrared Range

open access: yesAdvanced Photonics Research, Volume 7, Issue 1, January 2026.
This study presents precise refractive index measurements of AgGaS2 crystal in the extended mid‐infrared region. Corrected Sellmeier equations are introduced, broadening the use of silver thiogallate for nonlinear frequency‐conversion. The results enable accurate modeling of nonlinear‐optical processes and facilitate further development and ...
Evgeniy S. Zatsepin   +4 more
wiley   +1 more source

Phytoplankton biodiversity and its relationship with aquatic environmental factors in Lake Uvildy, South Urals, Russia

open access: yesBiodiversitas Journal of Biological Diversity, 2018
Kostryukova AM, Mashkova V, Krupnova TG, Egorov NO. 2018. Phytoplankton biodiversity and its relationship with aquatic environmental factors in Lake Uvildy, South Urals, Russia. Biodiversitas 19: 1422-1428.
A. Kostryukova   +3 more
semanticscholar   +1 more source

Detectable Human Influence on Reduced Day‐to‐Day Temperature Variability in the Cold Season Driven by Arctic Sea‐Ice Loss

open access: yesAtmospheric Science Letters, Volume 27, Issue 1, January 2026.
Over recent decades, day‐to‐day temperature variability at Northern Hemisphere mid and high latitudes has decreased, especially in the autumn and winter seasons. It is unclear how much the observed reduction is driven by human‐caused global warming. Our study utilizes a novel machine‐learning detection tool to demonstrate that the reduction since the ...
Peter Yu Feng Siew   +2 more
wiley   +1 more source

Contrasting Fluids in the Svetlinsk Gold-Telluride Hydrothermal System, South Urals

open access: yes, 2019
The large gold-telluride Svetlinsk deposit (~135 t Au) is considered to be a nontraditional one in the Urals and its origin is debated. A specific feature of the deposit is the abundance of various tellurides, such as tellurides of Fe, Ni, Pb, Sb, Bi, Ag,
O. Vikent’eva   +7 more
semanticscholar   +1 more source

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