M.P. Semenenko Institute of Geochemistry, Mineralogy and Ore Formation of NAS of Ukraine

Laboratory of thermobarogeochemistry

Department of Regional and Genetic Mineralogy

Responsible person:

Kulchytska Hanna Oleksandrivna, phone (044) 501-15-19, kulchec@igmof.gov.ua

 

  • Determination of PT-parameters of crystallization of minerals by fluid inclusions.
  • Determination of the chemical composition of aqueous solutions in fluid inclusions and their concentration by the temperature of phase transitions (cryometric studies).
  • Determination of the chemical composition of gaseous fluid inclusions by the temperatures of phase transitions (cryometric studies).
  • Determination of the chemical composition of volatile components extracted from minerals by heating (pyrolysis) or crushing. The composition of absorbed gases, components of fluid inclusions, composition of chemically bound groups with volatile elements are determined by pyrolysis products.

   Thermal chamber designed by V. Kalyuzhny (heating limits 20–600 °С).

   The accuracy of temperature measurement is ±1 °С.

   Research is carried out under a microscope in transparent plates of the mineral polished on both sides.

 

 

 

Thermal camera based on a silite heating rod (heating limits 20–1400 °С).

Accuracy of temperature measurement ±20 °С.

Research is carried out under a microscope in an air atmosphere in transparent plates of the mineral polished on both sides.

 

A heating device based on a silicate heating rod for determining the homogenization temperatures of inclusions by the quenching method (heating limits 20–1500 °С).

Accuracy of temperature measurement ±20 °С.

Research is carried out in an air atmosphere in transparent plates of the mineral polished on both sides.

 

Method:

Voznyak D.K. Microinclusion and reconstruction of the conditions of endogenous mineral formation. Kyiv: Nauk. dumka, 2007. 280 p. (in Ukrainian)

 

Cryochamber designed by D. Voznyak (temperature limits +150 ¸ –196 °С).

Accuracy of temperature measurement ± 0,2 °С.

Research is carried out under a microscope in transparent plates of the mineral polished on both sides.

Method:

Voznyak D.K. Microinclusion and reconstruction of the conditions of endogenous mineral formation. Kyiv: Nauk. dumka, 2007. 280 p. (in Ukrainian)

 Device based on the LHM-8MD chromatograph for determining the chemical composition of gas extracted from minerals and rocks by thermal and mechanical methods. The installation is equipped with an original gas scheme, a pyrolyzer and a cryo attachment, which makes it possible to determine the content of hydrogen, carbon, nitrogen and sulfur compounds in a mineral - H2, H2O, СО, СО2, СН4, С3Н8, N2, NO, NН3, Н2S, SO2 in a mineral from one measurement.

 The relative error of determination, depending on the component, is ± 2–10 %.

 As a standard, fractions of a mineral or rock with a size of 0.5–1.0 mm and a weight of 0.4–0.6 g are subjected to pyrolysis. Depending on the task, the size of the fraction and the weight can be changed.

Method:

Kulchytska H.O., Voznyak D.K., Halaburda Yu.A., Pavlyshyn V.I. Some results of high-temperature pyrolytic gas chromatography of pegmatite minerals. Mineral. journal, 1992. Vol. 14, No. 6. – P. 88–99. (in Russian)

Kulchytska H. Pyrolytic gas chromatography of minerals – a new method of genetic mineralogy. Mineralohichnyyzbirnyk. – 2010. – No. 60, issue 1. – pp. 10–19. (in Ukrainian)

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