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Title: VOLODARSK APATITE DEPOSIT IN THE EAST PRYAZOVIA REGION
VOLODARSK APATITE DEPOSIT IN THE EAST PRYAZOVIA REGION

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L. Datsenko;S. Movchan;S. Maliuta;Y. Chebanova;M. Hanchuk
10.5593/sgem2020/1.1/s01.047
1314-2704
978-619-7603-04-0
English
20
1.1
Geology
Volodarsk deposit of complex ilmenite-magnetite-apatite ores is located within the ore field of the Kalchytsk ore district of the same name. Found in the process of GSM-200, studied in the process of search and evaluation work. It is dated to the Gabro-sienite phase of the South Kalchytsk complex, the rocks of which constitute a stratified intrusion of the main composition with an area of about 103.8 sq km in the southeastern part of the Volodarsk massif. In the process of formation of intrusion as a result of fractionation (separation from the melt of the greater part of it due to crystallization at the initial stage of dark-colored minerals and plagioclase), the magma was divided into two parts that did not mix: the main ultra-basic and middle composition. As a result of this process, most of the intrusion (60-70% of the area on the modern erosion slice) is composed of fairly homogeneous rocks - sienites, to a lesser extent quartz sienites (with amphibole, biotite, pyroxene and olivine). Among them are developed consistent lens-shaped, lamellar bodies of varied composition. The main rock-forming minerals that make up these bodies are plagioclase (oligoclase-andesine), microcline-pertite, rhombic and monoclinic pyroxenes, and olivine (fayalite). In the process of crystallization differentiation only their ratio was changing - on the core of wells there is a stratification of monzonites, gabbro-monzonites, gabbro (normal and subluxate), peridotites, pyroxenites and plagioclasites with the power of "layers" from the first meters to hundred meters. Actually, the ores include the bodies of peridotites and gabbro with dense inclusions of ilmenite, titanomagnetite and apatite. The genesis of the deposit is magmatic.
Three ore bodies with a capacity from 30 to 340 m are estimated, traced over a range of up to 6.0 km. The ores are massive, rarely spotted. The content of useful components is ?2?5 ? 2,0-5,5%, T?O2 ? 2,5-11,4%, FeO ? 5,6-2,6%, Fe2O3 ? 7,6-46,2 %. Profitable development of the deposit is possible either on condition of sale of all received production or at the change of market conjuncture on separate types of raw materials.
The complex types of apatite ores of the Eastern Pryazovia gabro-sienite formation have been published for the first time. It was found that the ores have significant differences from this type of ore extracted at other deposits of Eurasia, South America. The mineralogical-petrographic diversity of the apatite-bearing rocks, the uneven redistribution of mineralization along the section and also on the area provide the basis for enrichment of apatite ores. Geological structure, field stratigraphy are provided. Apatite ores of the Volodarsk deposit are of industrial importance and can be used for the production of phosphorus fertilizers. It is advisable to continue complex geological studies in connection with the needs of Ukraine in providing the existing mountain-concentrating plants with apatites and phosphorites.
conference
https://www.sgem.org/index.php/jresearch-article?citekey=Datsenko20201373386
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20th International Multidisciplinary Scientific GeoConference SGEM 2020
20th International Multidisciplinary Scientific GeoConference SGEM 2020, 18 - 24 August, 2020
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference-SGEM
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts & Letters; Acad Fine Arts Zagreb Croatia; C
373-386
18 - 24 August, 2020
website
cdrom
6857
apatites; Volodarsk site; archaea; proterozoic; Demyanivsk (Sachkinsk) world.