Synopsis nach oben ↑
The Ukrainian Shield, as the principal constituent of the Sarmatia,
comprises the south-western counterpart in the triad of crustal
segments that constitute the oldest basement of the Eastern-European
Platform.
Excursion is devoted to the principal features of geology,
geochronology and metallogeny of greenstone belts developed in the
eastern part of Ukrainian Shield. This is a key region in the
understanding of the Archean and Proterozoic history of the
Shield. Besides, and it is also the major mineral producing region of
Ukraine accounting for the gross-country output of the iron and
manganese ores, uranium, mineral sands, and the principal region of
mineral prospecting and exploration for gold, copper, nickel,
molybdenum, rare metals, rare earths, and diamonds.
The length of the excursion, net of access and leave sections, is
about 350 km and within the four full-working days the route will
cross two Mega-Blocks of the Shield — Middle-Dniprean tonalite-
greenstone and Azovian granulite-greenstone. In view of the excursion
goals, the major attention will be paid to the greenstone rock
complexes providing most information on the Archean and Proterozoic
magmatism, sedimentation, tectonics and mineralization in the time
span 3.2-2.1 Ga, while the rocks developed in the greenstone basement
(various granite-gneisses, migmatites etc.) will be briefly examined
in conjunction with the issues of geochronology.
Excursion under auspices of the 33rd International Geological Congress
is organized by the State Geological Survey of Ukraine (SGSU),
Ukrainian State Geological Research Institute (UkrSGRI) and is
supported by the International Association on Genesis of Ore Deposits
(IAGOD).