Glaucony from the condensed Lower-Middle Jurassic deposits of the Križna Unit, Western Tatra Mountains, Poland

• Autorzy: Jach R. , Starzec K.
• Języki publikacji: EN

Abstrakty

EN

Lower-Middle Jurassic glaucony-bearing deposits crop out in the Polish part of the Križna Unit in the Western Tatra Mts. These deposits, up to 20 cm thick, consist of glaucony-rich marls and limestones. The glaucony grains constitute up to 30% volume of the deposits. They represent an evolved stage of glauconitization since they contain more than 7% K₂O. The content of Al₂O₃ is high (up to 19.97%, average 16.98%) while the content of Fe₂O₃ is low (not more than 23.48%, average 12.84%). These features are interpreted as a product of diagenetic processes. The glaucony-bearing deposits were formed at an upper bathyal depth and their rate of deposition was very low, what allowed long-lasting evolution of the glaucony grains. The K-Ar age of the glaucony grains is much younger than the biostratigraphic age of the studied section. The lowering of the K-Ar dates is interpreted as a result of loss of radiogenic Ar from the lattice of the glaucony.

Słowa kluczowe

EN

High-Al autochthonous glaucony; K-Ar dating; Carpathians; Tethys

• Wydawca: Polskie Towarzystwo Geologiczne
• Czasopismo: Annales Societatis Geologorum Poloniae
• Rocznik: 2003
• Tom: Vol. 73, No 3
• Strony: 183--192
• Opis fizyczny: Bibliogr. 38 poz., rys., tab., wykr.

Twórcy

autor

Jach R.

• Institute of Geological Sciences, Jagiellonian University, Oleandry 2a, 30-063 Kraków, Poland

autor

Starzec K.

• Institute of Geological Sciences, Jagiellonian University, Oleandry 2a, 30-063 Kraków, Poland

Bibliografia

• 1. Amireh, B. S., Jarrar, G., Henjes-Kunst, F. & Schneider, W., 1998. K-Ar dating, X-Ray diffractometry, optical and scanning electron miscroscopy of glauconies from the early Cretaceous Kumub Group of Jordan. Geological Journal, 33: 49-65.
• 2. Amorosi, A., 1995. Glaucony and sequence stratigraphy: a conceptual framework of distribution in siliciclastic sequences. Journal of Sedimentary Research, B65: 419-425.
• 3. Amorosi, A., 1997. Detecting compositional, spatial, and temporal attributes of glaucony: a tool for provenance research. Sedimentary Geology, 109: 135-153.
• 4. Andrusov, D., 1959. Geológia Československych Karpát. II. (In Slovak). Vydavatel’stvo Slovenskej Akadémie Vied, Bratislava, 375 pp.
• 5. Bac, M., 1971. Tectonics of the Bobrowiec Unit in the Western Tatra Mts. (In Polish, English summary). Acta Geologica Polonica, 21-. 219-315.
• 6. Bac-Moszaszwili, M., Burchart, J., Głazek, J., Iwanow, A., Jaroszewski, W., Kotański, Z., Lefeld, J., Mastella, L., Ozimkowski, W., Roniewicz, P., Skupiński, A. & Westwalewicz-Mogilska, E., 1979. Geological Map of the Polish Tatra Mountains 1:30 000. Wydawnictwa Geologiczne, Warszawa.
• 7. Berg-Madsen, V., 1983. High-alumina glaucony from the Middle Cambrian of Öland and Bornholm, Southern Baltoscandia. Journal of Sedimentary Petrology, 53: 875-893.
• 8. Bonhomme, M., Thuizat, R., Pinault, Y., Clauer, N., Wendling, R. & Winkler, R., 1975. Methode de datation potassium-argon: appareillage et technique. Notes Techniques de Institute Geologique Universite Louis Pasteur, Strasbourg, 3: 1-53.
• 9. Bomhold, B. D. & Giresse, P., 1985. Glauconitic sediments on the continental shelf of Vancouver Island, British Columbia, Canada. Journal of Sedimentary Petrology, 55: 653-664.
• 10. Chafetz, H. S. & Reid, A., 2000. Syndepositional shallow-water precipitation of glauconitic minerals. Sedimentary Geology, 136: 29-42.
• 11. Burst, J. F., 1958. ‘Glauconite’ pellets: their mineral nature and applications to stratigraphic interpretations. Bulletin of the American Association of Petroleum Geologists, 42: 310-327.
• 12. Clauer, N., Keppens, E. & Stille, P., 1992. Sr isotopic constraints on the process of glauconitization. Geology, 20: 133-136.
• 13. Dapples, E. C., 1967. Diagenesis of sandstones. In: Larsen, G. & Chilingar, G. V. (eds), Diagenesis in Sediments. Developments in Sedimentology, 8. Elsevier, Amsterdam, pp. 91-125.
• 14. Föllmi, K. B., 1989. Evolution of the Mid-Cretaceous triad. Lecture Notes in Earth Sciences, 23: 1-153.
• 15. Gradziński, M., Tyszka, J. & Uchman, A., 1997. Microbial-foraminiferal oncoids from the Lower/Middle Jurassic of the Tatra Mts. In: Abstracts of 3rd Regional Symposium of International Fossil Algae Association, 3rd Regional Meeting of IGCP 380. Institute of Geological Sciences, Jagiellonian University, Cracow, p. 71.
• 16. Ireland, B. J., Curtis, C. D. & Whiteman, J. A., 1983. Compositional variations within some glauconites and illites and implications for their stability and origin. Sedimentology, 30: 769-786.
• 17. Jach, R., 2003. Rozwój facjalny utworów przełomu jury dolnej i środkowej w jednostce kriżniańskiej Tatr Zachodnich. (In Polish). Unpublished Ph.D. Thesis, Institute of Geological Sciences, Jagiellonian University, Kraków, Poland, 122 pp.
• 18. Jach, R., Kędzierski, M. & Tyszka, J., 2002. The Lower Jurassic dysoxic-anoxic deposits of the Križna Unit, Tatra Mts., Western Carpathians, Poland. In: Martire, L. (ed.), 6th International Symposium on the Jurassic System. September 12-22 2002. Abstracts and Program. International Subcomission on Jurassic Stratigraphy, Palermo, p. 95.
• 19. Jenkyns, H., 1971. The genesis of condensed sequences in the Tethyan Jurassic. Lethaia, 4: 327-352.
• 20. Kelly, J. C. & Webb, J. A., 1999. The genesis of glaucony in the Oligo-Miocene Torquay Group, southeastern Australia: petrographic and geochemical evidence. Sedimentary Geology, 125:99-114.
• 21. Kreuzer, H., Kuster, H., Daniels, C. H. von, Hinsch, W., Spiegler, D. & Harre, W., 1980. K-Ar dates for Late Oligocene glauconites from NE Lower Saxony (NW Germany). Geologisches Jahrbuch, A54: 61-74.
• 22. Lefeld, J., Gaździcki, A., Iwanow, A., Krajewski, K. & Wójcik, K., 1985. Jurassic and Cretaceous lithostratigraphic units in the Tatra Mountains. Studia Geologica Polonica, 84: 7-93.
• 23. Lucia, F. J., 1962. Diagenesis of a crinoidal sediment. Journal of Sedimentary Petrology, 32: 848-865.
• 24. McRae, S. G., 1972. Glauconite. Earth Science Reviews, 8: 397- 440.
• 25. Odin, G. S. & Dodson, M. H., 1982. Zero isotopic age of glauconies. In: Odin, G. S. (ed.), Numerical Dating in Stratigraphy. Wiley, New York, pp. 277-305.
• 26. Odin, G. S. & Fullagar, P. D., 1988. Geological significance of the glaucony facies. In: Odin, G. S. (ed.), Green Marine Clays, Developments in Sedimentology, 45. Elsevier, Amsterdam, pp. 295-332.
• 27. Odin, G. S. & Lamboy, M., 1988. Glaucony from the margin off northwestern Spain. In: Odin, G. S. (ed.), Green Marine Clays, Developments in Sedimentology, 45. Elsevier, Amsterdam, pp. 249-275.
• 28. Odin, G. S. & Matter, A., 1981. De glauconiarum origine. Sedimentology, 28: 611-641.
• 29. Odom, M., 1984. Glauconite and celadonite minerals. Reviews in Mineralogy, 13: 545-572.
• 30. Plašienka, D. & Prokešová, R., 1996. Towards an evolutionary tectonic model of the Križna cover nappe (Western Carpathians, Slovakia). Slovak Geological Magazine, 3-4/96: 279- 286.
• 31. Rao, V. P., Lamboy, M. & Dupeuble, P. A., 1993. Verdine and other associated authigenic (glaucony, phosphate) facies from the surficial sediments of the southwestern continental margin of India. Marine Geology, 111: 133-158.
• 32. Smulikowski, K., 1936. Skolite, un noveau minéral du groupe de glauconie. Archiwum Mineralogiczne, 12: 144-180.
• 33. Smulikowski, K., 1954. The problem of glauconite. Archiwum Mineralogiczne, 18: 21-120.
• 34. Steiger, R. H. & Jager, E., 1977. Subcomission on geochronology: convention on the use of decay constants in geo- and cosmogeochronology. Earth Planetary Science Letters, 36: 259- 262.
• 35. Triplehom, D. M., 1966. Morphology, internal structure, and origin of glauconite pellets. Sedimentology, 6: 247-266.
• 36. Wieczorek, J., 2001. Condensed horizons as turning events in passive margin evolution: the Tatra Mts examples. Zentralblatt für Geologie und Palaontologie, 2000/1: 199-209.
• 37. Wiewióra, A., Giresse, P., Petit, S. & Wilamowski, A., 2001. A deep-water glauconitization process on the Ivory Coast-Ghana marginal ridge (ODP site 959): Determination of Fe3+-rich montmorillonite in green grains. Clays and Clay Minerals, 49: 540-558.
• 38. Wiewióra, A. & Łącka, T., 1980. Genesis of the glauconite pellets in the Ordovician deposits from Podlasie depression. Part II. Crystalochemical characteristics. (In Polish, English summary). Archiwum Mineralogiczne, 36: 37-72.