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of Canada 44: 1-21. Jarmołowicz-Szulc K, 1984. Datowania metodą K-Ar skał NE obrzeżenie Górnośląskiego Zagłębia Węglowego (K-Ar dating of rocks of the NE edge of the Upper Silesian Coal Basin). Kwartalnik Geologiczny 28: 749-750 (in Polish). Jarmołowicz-Szulc K, 1985. Badania geochronologiczne K- Ar skał magmowych północno-wschodniego obrzeżenia Górnośląskiego Zagłębia Węglowego (K-Ar geochronological studies of the northeastern edge of the Upper Silesian Coal Basin). Kwartalnik Geologiczny 29 (2): 343-354 (in Polish). Kozłowski S, 1955. Intruzje porfirowe w

-argon dating. Journal of Geophysical Research 72(10): 2603–2614, DOI 10.1029/JZ072i010p02603. http://dx.doi.org/10.1029/JZ072i010p02603 [5] Dalrymple GB and Lanphere MA, 1969. Potassium-argon dating: Principles, techniques and applications to geochronology. San Francisco, W.H. Freeman and Company: 258pp. [6] Faure G and Mensing TM, 2005. Isotopes: Principles and Applications, third edition. Hoboken, New Jersey, John Wiley & Sons: 897pp. [7] Flisch M, 1985. K-Ar dating of Quaternary samples. In: Hurford AJ, Jaeger E and ten Cate JAM, eds., Dating young sediments. Proced

B., FOCKEL F., 2005: Effects of a Cretaceous structural inversion and postulated high heat flow event on petroleum system of the western Lower Saxony basin and the charge history of the Apeldorn gas field. Netherlands Journal of Geosciences 84, 3-24. LAMARCHE J., SCHECK-WENDEROTH M., 2005: 3D structural model of the Polish Basin. Tectonophysics 397, 73-91. LIEWIG N., CLAUER N., 2000: K-Ar dating of varied microtextural illite in Permian gas reservoirs, northern Germany. Clay Minerals 35, 271-281. LIOU J. G., MARUYAMA S., CHO M., 1985: Phase equilibria and

References Balogh K. 1985: K/Ar dating of Neogene volcanic activity in Hungary: Experimental technique, experiences and methods of chronologic studies. ATOMKI Rep. D/1., 277-288. Birkenmajer K., Pécskay Z. & Szeliga W. 2004: Age relationships between Miocene volcanism and hydrothermal activity at Mt. Jarmuta, Pieniny Klippen Belt, West Carpathians, Poland. Stud. Geol. Pol. 123, 279-294. Borcos M. & Vlad S. 1994: Neogen volcanicity-metallogeny in the East Carpathians. In: Borcos M. & Vlad S. (Eds.): Plate tectonics and metallogeny in the East Carpathians and

New Data on the Post-Impact Material in Radiolarian Horizons in Outer Flysh Carpathians and Search for a Source Crater

In the Outer Carpathians in Barnasiówka radiolarian shale formation, there is an intercalation underlied by bentonite. There were found very rare elements and minerals in this intercalation. It was recognized that this horizon has been filled with products of a big object collision with Earth. The age of the manganese-iron intercalation was determined by potassium-argon (K-Ar) dating of illites to be (89.3±1.2) Ma. Similar age, (85.2±0.6) Ma, was found for the post-impact glass from the Boltysh crater in Ukraine. It was concluded that the formation of this intercalation was synchronous with the Boltysh crater formation at the Cenomanian/Turonian boundary. The research for the K-Ar age of the crater creation in Logoisk (Belarus) established its formation to (124.2±1.2) Ma ago.

References Athanasiu L., Dimitrescu R. & Semaka Al. 1956: Petrographical study of the magmatism from Bârgâu Mts. D.S. Com. Geol.   XI , 40-62 (in Romanian). Balogh K. 1985: K-Ar dating of Neogene volcanic activity in Hungary. Experimental technique, experiences and methods of chronological studies. ATOMKI Reports D/1, 277-288. Berza T., Borcoş M., Ianc R. & Bratosin I. 1982: La succession des intrusions Neogenes de la region Toroiaga-Ţiganul (Monts Maramureş). D.S. Inst. Geol. Geofiz. 67, 11-24. Berza T., Ianc R. & Bratosin I. 1984: Arsiţa pyroxene andesites

References Borucki J, 1966. Wstępne wyniki datowań bezwzględnych (K-Ar) granitoidów dolnośląskich (Preliminary results of K-Ar dating of the Lower Silesia granitoids). Kwartalnik Geologiczny 10: 1-18 (in Polish). Depciuch T, 1971. Wiek bezwzględny granitoidów strzegomskich określony metodą K-Ar (Absolute age of Strzegom granitoids determined by K-Ar method). Kwartalnik Geologiczny 15: 862-869 (in Polish). Di Vincenzo G, Viti C and Rocchi S, 2003. The effect of chlorite interlayering on 40 Ar- 39 Ar biotite dating: an 40 Ar- 39 Ar laser-probe and TEM

References Balogh K. 1985: K/Ar dating of Neogene volcanic activity in Hungary: Experimental technique, experiences and methods of chronologic studies. ATOMKI Rep. D/1 , 277-288. Brady J.: Mineral formulae recalculation: Clinopyroxene formula spreadsheet. http://serc.carleton.edu/files/research_education/equilibria/cpx_formula.v2.xls Brus Z. & Hurník S. 1984: Explosive volcanic structures in the North-Bohemian brown-coal basin. Čas. Mineral. Geol. 29, 3, 255-269 (in Czech with English abstract). Cajz V. 1992: Divoká rokle Gorge in Ústí nad Labem

-track, mica Rb-Sr and K-Ar dating: The uplift and cooling history of the Central Alps. Mem. Inst. Geoch. Mineral. Univ., Padova 30, 1-27. Warr L. N. & Rice H. 1994: Interlaboratory standardization and calibration of clay mineral crystallinity and crystallite size data. J. Metamorph. Geology 12, 141-152. Weaver C. E. 1989: Clay, muds, and shale. Developments in sedimentology. Elsevier , Amsterdam-Oxford-New York 44, 1-819.

References Balogh K. 1985: K/Ar dating of Neogene volcanic activity in Hungary: Experimental technique, experiences and methods of chronologic studies. ATOMKI Rep. D/1 , Institute of Nuclear Research , Debrecen, 277-288. Barth V. 1977: Basaltic volcanoes of the central part of the Nízký Jeseník Mts (in Czech). Čas. Mineral. Geol. 22, 3, 279-291. Barth V. & Zapletal J. 1978: Geology of the Razová Pyroclastic Complex in the Nízký Jeseník Mts. Sbor. Geol. Věd, Geol. 32, 97-122 (in Czech). Birkenmajer K., Pécskay Z., Grabowski J., Lorenc M.W. & Zagozdzon P