Results 181 to 190 of about 12,872 (214)

The carbonatite zone in the Ukrainian shield

International Geology Review, 1978
(1978). The carbonatite zone in the Ukrainian shield. International Geology Review: Vol. 20, No. 10, pp. 1131-1140.
Yu. L. Kapustin, E. M. Lapitskiy, V. T. Pogrebnoy, P. N. Storchak, Ye. N. Kochanov   +4 more
openaire   +1 more source

Deep crustral structure in Ukrainian Crystalline Shield

International Geology Review, 1967
The top of the "basaltic" layer may lie at 5 to 9 km below the surface in places and positions predictable geologically and radiochemically. A folded metamorphic complex (as old as 3.55 b.y.) is believed to exist at 3 to 4 km depth, underlain by ancient siallitic horizons which grade into the "basalt." The mean geothermal gradient in the Krivoy Rog ...
N.P. Semenenko, S.I. Subbotin, V.B. Sollogub, M.N. Ivantishin, A.V. Chekunov, V.D. Ladiyeva   +5 more
openaire   +1 more source

Precambrian geosynclinal metallogeny of Ukrainian shield

International Geology Review, 1968
The granites of the Ukrainian shield are secondary; the “shield,” in the first instance, is a segment of a fold belt which extends from the Black Sea, via the Voronezh Arch, to the Kola Peninsula. The metamorphic ungranitized anticlines are narrow folds in which are found iron, copper, zirconium and precious metals. Iron, titanium, copper, graphite and
openaire   +1 more source

Principal stages in geological evolution of Ukrainian shield

International Geology Review, 1965
The first attempt at coordination of the newest geochronological findings with identifiable petrographic complexes within the Ukrainian Shield, here seen as products of geosynclinal evolution and of granitization (in the modern sense), suggests the following characteristic traits of the Precambrian evolution of the earth's crust: an arrest of the upper
Ya. M. Belevtsev, A.K. Prus
openaire   +1 more source

Ejecta of the Boltysh Impact Crater in the Ukrainian Shield

2003
The Boltysh crater is an about 24-km-diameter complex impact structure, which is situated in the central part of the Ukrainian Shield. The crater is surrounded by an ejecta blanket represented by a polymict breccia layer that is preserved over an area of ~6500 km2.
Gurov, Eugene P., Kelley, Simon P, Köberl, Christian   +2 more
openaire   +2 more sources

Kamenetsk—A new impact structure in the Ukrainian Shield

Meteoritics & Planetary Science, 2017
AbstractThe Kamenetsk impact structure is a deeply eroded simple crater that formed in crystalline rocks of the Ukrainian Shield. This study presents structural, lithologic, and shock metamorphic evidence for an impact origin of the Kamenetsk structure, which was previously described as a paleovolcano. The Kamenetsk structure is an oval depression that
Eugene Gurov, Nikolay Nikolaenko, Helena Shevchuk, Anatoly Yamnichenko   +3 more
openaire   +1 more source

Potentially Diamondiferous Rocks of the Ukrainian Shield

17th International Conference Monitoring of Geological Processes and Ecological Condition of the Environment, 2023
H. H. Pavlov, H. O. Pavlova
openaire   +1 more source

Shielding Innocence: Safeguarding Displaced Ukrainian Children in Conflict Zone

2023
The research project conducted by Advocacy Unified Network (AUN) on the protection needs of displaced Ukrainian children in the Ukraine-Russia conflict zone is not only commendable but also of paramount importance. This comprehensive and rigorous study sheds light on the dire situation a highly vulnerable population faces; namely, children caught in a ...
openaire   +1 more source

Eoarchean rock association in the Dniester-Bouh Domain of the Ukrainian Shield: A suite of LILE-depleted enderbites and mafic granulites

Precambrian Research, 2021
Leonid Shumlyanskyy, Simon A Wilde, Stefan Claesson   +2 more
exaly  

RARE-METAL LEUCOGRANITES OF THE UKRAINIAN SHIELD

International Geology Review, 1988
Ye. M. Sheremet, B. S. Panov
openaire   +1 more source