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Jan Parafiniuk
Dr. hab.
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 Adit in the abandoned pyrite mine at Wieściszowice

Institute of Geochemistry, Mineralogy and Petrology
Room No 289, phone (0048-22) 822-30-51 ext. 230


PO POLSKU

E-mail: janpar@geo.uw.edu.pl

Division: Mineralogy

 Scientific interests and investigations

I am mainly interested in mineralogical and geochemical problems of hypergene conditions. Namely my interests concern the geochemical role of sulphur and sulphate minerals, crystallising in various hypergene environments (evaporates and products of their alterations, weathering zones of  ore deprosits). I worked extensively on mineralogical, geochemical and genetic problems of the native sulphur deposits in Forecarpathian Deep. The studies of the isotope composition of sulphur were applied for this purpose in many aspects, thus it was possible to propose an isotope balance of this element and a model of the origin of the Forecarpathian native sulphur deposits. 

Fibroferrite from Wieściszowice, Lower Silesia

Slavikite from Wieściszowice, Lower Silesia

Scheme of the weathering of sulfides

Another field of my work are the processes of weathering of ore minerals, especially pyrite. Studies of the sulphate minerals in the weathering assemblages formed in ore mineralisation zones at Wieściszowice and Krobica in Lower Silesia resulted in recognition of several minerals, which were unknown earlier from the area of Poland, e.g. pickeringite, fibroferrite and slavikite. The differentiation of the isotope compositions in the sulphates of the weathering origin was recognised, to verify the application of the isotope studies to determination of the genesis of this mineralisation.

I am interested in the geochemical and mineralogical aspects of the environment protection as well.

Publications

Parafiniuk J., Kowalski W., Hałas S. (1994) Stable isotope geochemistry and the genesis of the Polish native sulphur deposits - a review. Kwart. Geol. 38 (3), 473-496.

Parafiniuk J. (1996) Sulfate minerals and their origin in the weathering zone of the pyrite-bearing schists at Wieściszowice (Rudawy Janowickie Mts, Western Sudetes). Acta Geol. Pol. 46 (3-4), 353-414.

Parafiniuk J., Hałas S. (1997) Sulfur- and oxygen-isotope composition as the genetic indicator for celestite from the Miocene evaporites of the Carpathian Foredeep. Slovak Geol. Mag. 3 (2), 131-134.

Böttcher M.E., Parafiniuk J. (1998) Methane-derived carbonates in a native sulfur deposit: stable isotope and trace element discrimination of aragonite to calcite. Isotopes. Environ. Health Stud. 34, 177-190.

Parafiniuk J., Stępisiewicz M. (1999) Sulphate minerals forming on pyrite and marcasite specimens stored under room condition. Miner. Polon. 30 (1), 59-68.

Teaching

Lecture "Geochemistry of isotopes" (4th and 5th course of the geochemical, mineralogical and petrological specialisation)

Lecture "Organic geochemistry" (5th course of the geochemical, mineralogical and petrological specialisation)

Lecture "Gemmology" (two-semester optional lecture)

Classes "Metods of investigations of minerals and rocks" (4th course of the geochemical, mineralogical and petrological specialisation)

Field geologic course in Sudetes (4th course of the geochemical, mineralogical and petrological specialisation)

 

Collecting of minerals.

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Last update: July 1, 2000