Phlogopite dunites of Malyi Ostrozhok intrusion (Podil megablock of the Ukrainian shield)

Tsymbal, Stepan; Kryvdik, S.G.; Tsymbal, Yu.S.

doi:10.15407/gof.2016.36.089

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“…АМФІБОЛИ ЛУЖНО-УЛЬТРАОСНОВНИХ ПОРІД ПІВНІЧНО-ЗАХІДНОЇ ЧАСТИНИ УЩ азов'я), Проскурівського і Антонівського (По бужжя) масивів (Kryvdik, Glevasskiy, Levina, 1980;Kryvdik, Tkachuk, 1990 Тектонічні умови локалізації досліджува них ЛУП описані в попередніх публікаціях (Tsymbal et al, 1997;Baran, Geiko, Zagnitko, 2011;Kryvdik, Tsymbal, Geiko, 2003) і узагаль нено в дисертаційній праці А.М. Барана (Baran, 2012).…”

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Amphiboles of Alkaline-Ultrabasic Rocks from North-Western Part of the Ukrainian Shield

Tsymbal,

Kryvdik

2024

Mìneral. ž.

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Different magnesian amphiboles — pargasites, Ca-Na- and alkaline ones (richterites, Mg-kathophorites, Mg-taramites, Mg-riebeckites, Mg-arfvedsonites and intermediate varieties) of alkaline-ultrabasic rocks (hypabyssal intrusions and dikes) from North-Western part of the Ukrainian Shield are studied and analyzed (mainly microbe method). Some pargasites and richterites are characterized by increased or high TiO2 contents (2.9-3.2%). In studied region more enriched in iron and titanium amphiboles (ferri-kaersutites) rarely occur too in veins rocks of essexite composition. Chemistry of amphiboles depends on types of rocks and erosion of their intrusions. Low aluminian and alkaline amphiboles are characteristic for at least eroded intrusions (dikes) whereas in more eroded and more crystallized hypabysal intrusions amphiboles with higher aluminium of pargasite composition form. Such diversity of studied amphiboles is caused by composition of alkaline-ultrabasic melts and some different depth of their crystallization.

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“…У деяких дайкових породах Глумчанської ділянки (св. 635, 140) dik, Tsymbal, Geiko, 2003;Tsymbal et al, 1997).…”

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Amphiboles of Alkaline-Ultrabasic Rocks from North-Western Part of the Ukrainian Shield

Tsymbal,

Kryvdik

2024

Mìneral. ž.

View full text Add to dashboard Cite

show abstract

Phlogopite dunites of Malyi Ostrozhok intrusion (Podil megablock of the Ukrainian shield)

Cited by 1 publication

References 6 publications

Amphiboles of Alkaline-Ultrabasic Rocks from North-Western Part of the Ukrainian Shield

Amphiboles of Alkaline-Ultrabasic Rocks from North-Western Part of the Ukrainian Shield

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