TERÉNNÍ GAMASPEKTROMETRICKÁ CHARAKTERISTIKA PSAMITŮ GODULSKÉHO SOUVRSTVÍ: VYUŽITÍ PRO INTERPRETACI JEJICH VZNIKU
Roč.20,č.1-2(2013)
Our study was focused on low to medium radioactive sandstones of the Godula Formation of the external fl ysch zone of the Western Carpathians. It is widely known that concentrations of radioactive elements (K, U and Th ) in siliciclastic sediments are primary controlled by facies and mineral and chemical composition, which is largely influenced by their provenance. In the Godula Formation, K was found to be predominantly incorporated in some framework and accessory detritic minerals (K-feldspars, albite, mica, glauconite, illite). Main sources of U and Th were identified in heavy minerals, such as monazite and zircon. Variations of K, U and Th concentrations correspond to changes in modal composition of sandstones and indicate uplift and subsequent erosion of structurally deeper crustal parts of source area (Silesian Ridge). Significant increase of K, U and Th concentrations was observed near the boundary between the Middle and Upper Godula beds. Gamma-ray spectrometry could be used as good supplementary technique for discrimination of sandstones of these lithostratigraphical parts of the Godula Formation.
Godula Formation; gamma-ray spectrometry; sandstone petrography; provenance; stratigraphy
Adams, J. A. – Weaver, C. E. (1958): Th orium-uranium ratios as indicators of sedimentary processes: example of koncept of geochemical facies. – Bulletin of the American Association of Petroleum Geologists, 42, 2, 387–430.
Basu, A. (1985): Reading provenance from detrital quartz. – In: Zuffa, G. G. (ed.): Provenance of Arenites. NATO ASI, Series C, 148, 231–248. D. Reidel Publishing Company, Dordrecht.
Berggren, W. A. – Kent, D. V. – Swisher, C. C. III – Aubry, M. – P., Hardenbol, J. (1995): Geochronology, Time Scales. – SEPM Special Publications, 54, 386 pp. Tulsa.
Das, P. K. (2008): Petrography of sandstones of Thekopili Formation, Jaintia Hills district, Meghalaya. – Bulletin of Pure and Applied Sciences – Section F Geological Sciences, 27, 19–24.
Deer, W. A. – Howie, R. A. – Zussman, J. (1992): An introduction to the rock-forming minerals. 2nd ed. – Longman Scientifi c & Technical. 698 pp. Harlow.
Dickinson, W. R. (1970): Interpreting detrital modes of graywacke and Arcose. – Journal of Sedimentary Petrology, 40, 695–707.
Dickinson, W. R. – Beard, S. – Brakenridge, G. R. – Drnavec, J. L. – Ferguson, R. C. – Inman, K. F. – Knepp, R. A. – Lindberg, F. A. – Ryberg, P. T. (1983): Provenance of North American Phanerozoic sandstones in relation to tectonic setting. GSA Bulletin, 94, 2, 222–235. https://doi.org/10.1130/0016-7606%281983%2994%3C222:PONAPS%3E2.0.CO;2">https://doi.org/10.1130/0016-7606(1983)94<222:PONAPS>2.0.CO;2
Doveton, J. H. (1994): Geologic Log Interpretation: Reading the Rocks from Wireline Logs. – SEPM Short Course Notes, 29. 169 pps. Tulsa.
Eliáš, M. (1970): Litologie a sedimentologie slezské jednotky v Moravskoslezských Beskydech. – Sborník geologických věd, Geologie, 8, 7–99.
Eliáš, M. (2000): Vztahy mezi pústevenskými pískovci a pískovci malinovské skály (godulské souvrství s. s.) v Beskydách. – Geologické výzkumy na Moravě a ve Slezsku v roce 1999, 64–66.
Grzebyk, J. – Lesczynski, S. (2006): New data on heavy minerals from the Upper Cretaceous-Paleogene fl ysch of the Beskid Slaski Mts. (Polish Carpathians). – Geological Quarterly, 50, 2, 265–280.
Helmond, K. P. (1985): Provenance of Feldspatic Sandstones – The Effect of diagenesis on Provenance interpretation. – In: Zuffa, G., G. (ed.): Provenance of Arenites. NATO ASI, Series C, 148, 139–163. D. Reidel Publishing Company, Dordrecht.
Matýsek, D. – Skupien, P. (2005): Fosforitové konkrece ve svrchní křídě slezské jednotky. – Geologické výzkumy na Moravě a ve Slezsku v roce 2004, 34–36.
Menčík, E. – Adamová, M. – Dvořák, J. – Dudek, A. – Jetel, J. – Jurková, A. – Hanzlíková, E. – Houša, V. – Peslová, H. – Rybářová, L. – Šmíd, B. – Šebesta, J. – Tyráček, J. – Vašíček, Z. (1983): Geologie Moravskoslezských Beskyd a Podbeskydské pahorkatiny. – Ústřední Ústav geologický. 307 str. Praha.
Michalík, M. – Gehrels, G. – Budzyń, B. (2004): Dating of gneissic clasts from Gródek on the Jezioro Rożnowskie Lake (Silesian unit). – Materiały VII Ogólnopolskiej Sesji Naukowej “Datowanie Minerałów i Skał”, Kraków, AGH-UJ, 18–19. 11. 2004, 101–106.
Morton, A. C. (2003): Heavy Minerals. – In: Middleton, M. J. et al. (eds): Encyclopedia of Sediments and Sedimentary Rocks. 356–358. Kluwer Academic Publishers. Dordrecht.
Oszczypko, N. (2004): Th e structural position and tectonosedimentary evolution of the Polish Outer Carpathians. – Przegląd Geologiczny, 52, 780–791.
Picha, F. J. – Stráník, Z. – Krejčí, O. (2006): Geology and Hydrocarbon Resources of the Outer Western Carpathians and Their Foreland, Czech Republic. – In: Golonka, J. – Picha, F. J.: Th e Carpathians and their foreland: Geology and hydrocarbon resources: AAPG Memoir, 84, 49–175.
Poprawa, P. – Malata, T. – Oszczypko, N. (2002): Ewolucja tektoniczna basenów sedymentacyjnych polskiej czeoeci Karpat zewnetrznych w oewietle analizy subsydencji. – Przegląd Geologiczny, 50, 1092–1108.
Rider, M. (1996): Th e Geological Interpretation of Well Logs, 2nd edition. – Whittles Publishing. 280 pps. Caithness.
Roth, Z. (1980): Stratigrafi e godulské skupiny Moravskoslezských Beskyd ve světle hlubokých vrtů. – Věstník Ústředního Ústavu geologického, 55, 2, 75–83.
Skupien, P. – Mohamed, O. (2008): Campanian to Maastrichtian palynofacies and dinofl agellate cysts of the Silesian Unit, Outer Western Carpathians, Czech Republic. – Bulletin of Geosciences, 83, 2, 207–224. Praha. https://doi.org/10.3140/bull.geosci.2008.02.207">https://doi.org/10.3140/bull.geosci.2008.02.207
Slatt, R. M. – Jordan, D. W. – D´Agostino, A. – Gillespie, R. H. (1992): Outcrop gamma-ray logging to improve understanding of subsurface well log correlations. – In: Hurst, A. – Griffi ths, C. M. – Worthington, P. F. (eds): Geological application of wireline logs (2nd Ed). Special Publication – Geological Society of London, 65, 3–19.
Speer, J. A. (1980): Zircon. – Reviews in Mineralogy and Geochemistry – Mineralogical Society of America, 5, 67–112.
Svendsen, J. B. – Hartley, N. R. (2001): Comparison between outcropspectral gamma ray logging and whole rock geochemistry: implications for quantitative reservoir characterisation in continental sequences. – Marine and Petroleum Geology, 18, 65–670. https://doi.org/10.1016/S0264-8172%2801%2900022-8">https://doi.org/10.1016/S0264-8172(01)00022-8
Šimíček, D. – Bábek, O. – Leichmann, J. (2012): Outcrop gamma-ray logging of siliciclastic turbidites: Separating the detrital provenance signal from facies in the foreland-basin turbidites of the Moravo-Silesian basin, Czech Republic. – Sedimentary Geology, 261–262, 50–64.
Tucker, M. E. (2003): Sedimentary Rocks in the Field, 3rd Edition: Th e Geological Field Guide Series. – John Wiley&Sons Limited. 234 pp. New York.
Unrug, R. (1968): Kordyliera Śląska jako obszar Żródłowy materiału klastycznego piaskowców fliszowych Beskidu Śląskiego i Beskidu Wysokiego (Polskie Karpaty zachodnie). – Rocznik Polskiego Towarzystwa Geologicznego, 38, 81–164.
Van Wagoner, J. C. – Mitchum, R. M. – Campion, K. M. – Rahmanian, V. D. (1990): Siliciclastic sequence and stratigraphy in well logs, cores, and outcrops: concepts for high-resolution correlation of time and facies. – American Association of Petroleum Geologists - Methods in Exploration, 7, 99 pp. Tulsa.
