Results 31 to 40 of about 1,128,157 (258)

PETROCHRONOLOGY OF GRANITOIDS (SOBITES) IN THE ROS-TIKYCH AND DNIESTER-BOUH DOMAINS JUNCTION ZONE, THE UKRAINIAN SHIELD

open access: yesMineralogical Journal
An isotopic-geochronological and geochemical study of zircon and fluorapatite was conducted on Paleoproterozoic granitoids from the Ros-Tikych Domain in the south-western part of the Ukrainian Shield. Granitoids of three age populations (ca. 3.8, 3.0-2.8,
M. M. Reshetnyk   +5 more
semanticscholar   +1 more source

OLIVINES OF ALKALINE-ULTRABASIC ROCKS IN NORTH-WESTERN REGION OF THE UKRAINIAN SHIELD

open access: yesGeochemistry and ore formation, 2023
Olivine (forsterite, rarely chrysoline) is characteristic mineral of alkaline-ultrabasic rocks in Noth-Western region of the Ukrainian shield. These rocks (melteigites, jacupirangites, melteigine-porphyries) form hypabissal intrusions and dikes. Olivines
O. Tsymbal, S. G. Kryvdik
semanticscholar   +1 more source

Local earthquakes on the Ukrainian Shield

open access: yesГеофизический журнал, 2013
The data on local earthquakes with 2,0-4,5 magnitudes in the western and central part of the Ukrainian Shield in 2005-2013 have been presented. The nature of appearance of the earthquakes with magnitude 3,5-4,5 within the Krivoy Rog iron ore structure ...
Yu. A. Andrushchenko   +4 more
doaj   +1 more source

PECULIARITIES OF FENITIZATION PROCESS IN EXOCONTACTIC AUREOLES OF ALKALINE-ULTRABASIC ROCKS IN THE NORTH-WESTERN PART OF THE UKRAINIAN SHIELD

open access: yesGeological Journal, 2023
The apogranitoid fenites in the exocontact parts of the Gorodnytsa intrusion of alkaline-ultrabasic rocks (northwestern part of the Ukrainian Shield) are considered.
S. Kryvdik, O. Tsymbal
semanticscholar   +1 more source

THE YOUNG LATE PALAEOPROTEROZOIC (1800–1700 MA) AGES OF MONAZITE AND ZIRCON IN ROCKS OF THE DNIESTER-BOUH REGION OF THE UKRAINIAN SHIELD

open access: yesGeological Journal
The results of U-Pb isotope dating (TIMS and LA-ICP MS-method) of monazite from pyroxene-bearing granitoids of the Dniester-Bouh region of the Ukrainian Shield are discussed in the paper.
L. Stepanyuk   +5 more
semanticscholar   +1 more source

EPR CHARACTERISTICS OF FELDSPARS FROM GRANITES OF RUSKA POLYANA MASSIF OF KORSUN-NOVOMYRHOROD PLUTON (UKRAINIAN SHIELD)

open access: yesMineralogical Journal, 2023
The electronic paramagnetic resonance spectra of microfractions of microcline, plagioclase and albite from the Ruska Polyana granites of the Korsun-Novomyrhorod pluton located in the Ukrainian Shield were measured.
A. L. Larikov, O. Zaiats, M. M. Bagmut
semanticscholar   +1 more source

Seismic good quality of the Earth crust of the northern part pf the Ukrainian shield

open access: yesГеофизический журнал, 2016
According to the records of superficial coda-waves from seismic events in the Kriviy Rig area receive value, quality factor (Q), frequency parameter (n) and attenuation factor (δ) of seismic waves in earth's crust of northern part Ukrainian shield have ...
Yu. A. Andrushchenko   +3 more
doaj   +1 more source

Age span formation in granitoids of Ukrainian Shield

open access: yesВісник Київського національного університету імені Тараса Шевченка. Серія Геологія, 2020
 The paper discusses Berdychiv type granitoids that have always stirred up interest among researchers of the Ukrainian Shield. These rocks include minerals that are uncharacteristic of granites - cordierite, sillimanite, andalusite - and are closely ...
L. Stepanyuk   +5 more
doaj   +1 more source

Three-dimensional geoelectrical model of the central part of the Zvizdal-Zaliska and Brusyliv fault zones of the Ukrainian Shield

open access: yesGeofizicheskiy Zhurnal, 2023
To study the deep structure of the geoelectrically complex junction zone of three megablocks of the western part of the Ukrainian Shield (Volyn', Podil, and Ros'), a three-dimensional model of the central part of the Zvizdal-Zaliska and Brusyliv fault ...
T. K. Burakhovych   +2 more
semanticscholar   +1 more source

On some aspects of the study of age ratios of rock complexes of the Ukrainian Shield

open access: yesГеофизический журнал, 2020
The article discusses the applicability of stratigraphic dismemberment in the study of high-temperature metamorphic complexes of the Ukrainian Shield. The effectiveness of the stratigraphic method with respect to these complexes was called into question
V.P. Kyrylyuk
doaj   +1 more source

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