Scientific background and major interests:
    The major point of my scientific interest is primary isotope record in organic sediments and organic matter, especially 13C/12C, 34S/32S and D/H (in the peat, soils, plants and tree rings, etc.) and the isotope effects during photosynthesis. Environmental variations during vegetation results in various isotope fractionation in various plants. Therefore, peat profiles are potentially abundant archive to reconstruct past climates and global carbon budged.
    The second major point in my scientific interest is the weathering chemical and physical control of oxygen stable isotope variations in hydrated silicates (especially opals and chrysoprases). The oxygen stable isotopic analysis of silicates is the powerful toll to reconstruction the origin of the silicates deposit. The obtained/calculated temperature of crystallization characterizes the origin condition during the minerals forming.



Position:
2005 – postdoc at The University of Texas at San Antonio, Department of Earth and Environmental Science, stable isotope laboratory (Advisor: DR Debajyoti Paul)
1999 – Associated Professor (adjunct) at University of Wroclaw, Institute of Geological Sciences, Laboratory of Isotope Geology and Geoecology,

Education:
1995 M.Sc. geology, University of Wroclaw
1995 B.Sc. nature protection, University of Wroclaw (second faculty)
1999 Ph.D. Institute of Geological Sciences, University of Wroclaw

Grants Received:
1997-98 Research grant (head of project) Paleoenvironmental analyses of selected peat-bog in Poland based on the spatial variation in the 34S/32S and 13C/12C ratios in the peat profiles. State Committee for Sciences Research, (no. 6PO4D03011, KBN Poland)

2000-02 Research grant (head of project) Origin of chrysoprase deposits in the light of oxygen isotope (18O/16O) geochemistry. State Committee for Sciences Research (no 6PO4D07418, KBN, Poland)

2004-05 Research grant (head of project) Variation of the carbon isotope composition (13C/12C) of selected peatbog plants as an effect of different climatic condition of place of vegetation: temperature and humidity. State Committee for Sciences Research (no 2P04G 004 26, KBN, Poland)

Professional Membership:
2005 – American Geochemical Union

Hobbies: see -> http://mnisi.republika.pl

SELECTED PAPERS:
• Skrzypek, G. and D. Paul, and B Wojtun, 2007. Stable Isotope Composition of Peat and Plants from Iceland. (In Review: Plant and Soil Journal)

• Jezierski A., G. Skrzypek, P. Jezierski, D. Paul, M.O. Jedrysek, 2007, Electron paramagnetic resonance (EPR) and stable isotope records of paleoenvironmental conditions during peat formation. (In Review: Spectrochemica Acta Part B)
• Paul D., G. Skrzypek, and F. Istvan, 2007. Normalization of measured stable isotopic compositions to isotope reference scales - a review, Rapid Commun. Mass Spectrom. (ACCEPTED)

• Skrzypek G., Kałużny A., Wojtuń B, Jędrysek M.O., 2007, The carbon stable isotopic composition of mosses - the record of temperature variations. Organic Geochemistry (in press DOI: 10.1016/j.orggeochem.2007.05.002.

• Paul D., G. Skrzypek, 2007. Assessment of carbonate-phosphoric acid analytical technique performed using GasBench II in continuous flow isotope ratio mass spectrometry, Int. J. Mass Spectrom., 262(3), 180-186.

• Paul D., G. Skrzypek, 2006. Flushing Time and Storage Effects on the Accuracy and Precision of Carbon and Oxygen Isotope Ratios of Sample using the Gasbench II Technique, Rapid Commun. Mass Spectrom., 20 (13), 2033-2040, DOI: 10.1002/rcm.2559.

• Skrzypek, G. and D. Paul, 2006. 13C Analyses of Calcium Carbonate: Comparison between the GasBench and Elemental Analyzer Techniques, Rapid Commun. Mass Spectrom., 20, 2915–2920, DOI: 10.1002/rcm.2688.

• Skrzypek G., Jędrysek M.O., Keller-Sikora A., 2005, Calibration of temperature carbon isotopic effect (peat-bogs Hala Izerska, Izerskie Mts. and Szrenica, Karkonosze Mts.) In: Reconstruction of Quaternary Palaeoclimate and Palaeoenvironments and their Abrupt Changes., Ed. H.Winter., State Geological Institute, Warsaw (in press).

• Skrzypek G., Drzewicki W., Jedrysek M.O., 2005, Seasonal variations in carbon isotopic composition of peat forming plants (Sphagnum and Polytrichum, from Nature Reserve „Peat bog of Izera Valley”, SW Poland). (in Polish) Scientific Papers of the Institute of Mining of the Wrocław University of Technology 110, 42: 173-181

• Jędrysek M.O., Skrzypek G., 2005, Hydrogen, carbon and sulphur isotope ratios in peat: the role of diagenessis and water regimes in reconstruction of past climates. Environmental Chemistry Letter 2(4):179-183 (Online first published at 12/2004, DOI: 10.1007/s10311-004-0093-4)

• Skrzypek G. and Jędrysek M.O., 2005, 13C/12C ratio in peat cores: record of past climates., In: Lichtfouse E, Schwarzbauer J, Robert D (eds) Environmental Chemistry - Green Chemistry and Pollutants in Ecosystems. Springer-Verlag (ISBN: 3-540-22860-8): 65-73

• Skrzypek G., Jędrysek M.O., 2004, Carbon isotopic calibration of peat-forming plants (Sphagnum Sp, Polytrichum Sp.) and peat with respect to air-humidity and temperature of vegetation (Smielec – Jagniątów, Giant Mountains, Poland). In: Stursa J., Mazurski K. R., Palucki A. & Potocka J. (eds), Geoecological Problems of the Giant Mountains. Sborn. Mez. Ved. Konf., Listopad 2003, Szklarska Poreba. Opera Corcontica, 41: 185-193

• Goldsztejn P., Skrzypek G., 2004, Applications of numeric interpolation methods to the geological surface mapping on the base of irregularly spaced data. (in Polish) Przegląd Geologiczny 52(3): 233-236

• Goldsztejn P., Skrzypek G., 2004, The morphology of the top tills’ surface of the south polish glaciations (Sanian 2) in the center of Wrocław. (in Polish) Przegląd Geologiczny 52(2): 160-162

• Skrzypek G., Sachanbiński M., Jędrysek M-O., 2003, Oxygen isotope evidence for low temperature formation of chrysoprase. Mineralogical Society of Poland, Special Papers 22: 204-206

• Jędrysek M.O., Krąpiec M., Skrzypek G., and Kałużny A., 2003, Air-pollution effect and Paleotemperature Scale versus δ13C Records in Tree Rings and in a Peat Core (Southern Poland)., Water, Air and Soil Pollution 145(1): 359-375.

• Skrzypek G., Sachanbiński M., Fallick A.E, and Jędrysek M-O., 2001, CO2 - laser ablation oxygen isotope analysis chrysoprase from "Wiry mine"., Mineralogical Society of Poland, Special Papers 18: 199-202.

• Skrzypek G. and Jędrysek M. O., 2001, Conservation of organic matter in peat: δ13C and δD in peat profiles from “Suche Bagno” (NE Poland)., Mineralogical Society of Poland, Special Papers 18: 195-198.

• Skrzypek G. and Jędrysek M. O., 2001, Conservation of Peat: D/H and 13C/12C Horizontal Homogeneity in “Suche Bagno” Profiles. Biogeochemical Processes and Cycling of Elements in the Environment, Biogeochemical Processes and Cycling of Elements in the Environment, Polish Society of Humic Substances., Procedings of the 15th International Symposium on Environmental Biogeochemistry, Wroclaw, Poland 11-15, 2001, pp. 313-314.

• Skrzypek G., Jędrysek M.O., 2000, Climatic variation in the last Millennium in Poland: δ13C peat profiles. Prace Geograficzne (Institute of Geography at the Jagiellonian University, Kraków), 107, pp. 131- 136

• Jędrysek M.O., Skrzypek G., Hałas S., Kral T., Pazdur A., Wada E., Takai Y., Vijarnsorn P., Doroszko B., Kałużny A., Weber-Weller A., and Wójcik A., 1999, Seawater/freshwater records in stable isotope composition of sediments: marine muds from Baltic’s Gotland deep and mangrove peat profile from Thailand., Quaternary Studies in Poland., Special Issue-1999, 127-133.

• Jędrysek M. O., Skrzypek G., Kałużny A., Krąpiec M., Hałas S., Pazdur A., 1998, Paleotemeprature Scale, δ13C Record in Tree Rings, δ13C Record in a Peat Core: why do they Correlate?, Rud.Met.Zborn.-Meterials and Geoenvironment, 45, 99-106.

• Krąpiec M., Jędrysek M. O., Skrzypek G., Kałużny A., 1998, Carbon and hydrogen isotope ratios in cellulose from oak tree rings as a record of palaeoclimatic conditions in Southern Poland during the last millenium. Folia Quaternatia, 69, 135-150

• Jędrysek M. O., Skrzypek G., Wada E., Doroszko B., Kral T. E., Pazdur A., Vijarnsorn P., Takai Y., 1995, δ13C and δ34S analysis in peat profiles and global change. (in Polish, English Abstract and Figures, Analiza δ13C i δ34S w profilach torfowych a zmiany globalne.), Przegląd Geologiczny, 12, 1004-1010