Clays and Clay Minerals

, Volume 66, Issue 1, pp 43–60 | Cite as

Mineralogical Evolution of the Paleogene Formations in the Kyzyltokoy Basin, Kyrgyzstan: Implications for the Formation of Glauconite

  • Tursunai BektemirovaEmail author
  • Apas Bakirov
  • Ruizhong Hu
  • Hongping He
  • Yuanfeng Cai
  • Wei Tan
  • Aiqing Chen


Although several hypotheses for the formation of glauconite have been proposed, the sedimentary environment and mechanism of glauconitization are still poorly understood. In this contribution, the mineralogy and chemical compositions of sediments from Paleogene formations (Fms) in the Kyzyltokoy basin (Kyrgyzstan) were examined to better understand glauconitization processes. The samples were analyzed using microscopic petrography, X-ray diffraction (XRD), electron probe microanalysis (EPMA), and X-ray fluorescence (XRF). Interlayered diatomite-argillaceous rocks were newly identified within the diatomites of the Isfara Fm. Glauconite from the Kyzyltokoy basin displayed two stages of maturity: 1) early stage (nascent) glauconite grains composed of ç3.5% K2O and ~8% FeOT; 2) late-stage (highly evolved) glauconite grains composed of 7–9% K2O and ~27% FeOT. The early stage glauconite grains in the Hanabad Fm green clay (green clay is clay with a greenish color) indicate interruptions in glauconitization processes, whereas the (highly) evolved glauconite grains show a completed glauconitization process along the contact between the Hanabad and Sumsar Fms. Hematite was detected in the red clay (clay with reddish color) of the Sumsar Fm and probably formed by glauconite disintegration. Accordingly, the Paleogene Fms depositional conditions were of three types: 1) beginning of glauconitization with interruptions, 2) completion of glauconitization, and 3) glauconite disintegration. Glauconitization in the Kyzyltokoy basin, thus, likely occurred via a combination of dissolution, precipitation, and recrystallization processes.

Key Words

Crystallo-chemical Formula Glauconite Maturity Mineralogy Paleogene Formations Sedimentary Environment 


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  1. Afanasjeva, N.I., Zorina, S.O., Gubaidullina, A.M., Naumkina, N.I., and Suchkova, G. (2012) Crystal chemistry and genesis of glauconite from “Melovatka” section (Cenomanian, of South-Eastern Russian plate). Lithosphera, 2, 65–75.Google Scholar
  2. Amorosi, A. (1997) Detecting compositional, spatial, and temporal attributes of glaucony: A tool for provenance research. Sedimentary Geology, 109, 135–153.CrossRefGoogle Scholar
  3. Amorosi, A., Guidi, R., Mas, R., and Falanga, E. (2011) Glaucony from the Cretaceous of the Sierra de Guadarrama (central Spain) and its application in a sequence-stratigraphic context. International Journal of Earth Sciences, 101, 415–427.CrossRefGoogle Scholar
  4. Amorosi, A., Sammartino, I., and Tateo, F. (2007) Evolution patterns of glaucony maturity: A mineralogical and geochemical approach. Deep Sea Research Part II: Topical Studies in Oceanography, 54, 1364–1374.CrossRefGoogle Scholar
  5. Bakirov, A.B., Mezgin, I..A., Bektemirova, T.A., and Usenov, M. (2011) The structure of Paleogene within the Kyzyltokoy depression (Southern foot of Chatkal Rridge). Izvestiya, National Academy of Science of Kyrgyz Republic, 2, 81–83.Google Scholar
  6. Berner, R.A. (1981) A new geochemical classification of sedimentary environments. Journal of Sedimentary Petrology, 51, 359–365.Google Scholar
  7. Burst, J. (1958) Mineral heterogeneity in glauconite pellets. American Mineralogist, 43, 481–497.Google Scholar
  8. Chang, S.S., Shau, Y.H., Wang, M.K., Ku, T.K., and Chiang, P.N. (2008) Mineralogy and occurrence of glauconite in central Taiwan. Applied Clay Science, 42, 74–80.CrossRefGoogle Scholar
  9. Charpentier, D., Buatier, M. D., Jacquot, E., Gaudin, A., and Wheat, C. G. (2011) Conditions and mechanism for the formation of iron-rich montmorillonite in deep sea sediments (Costa Rica margin): Coupling high resolution mineralogical characterization and geochemical modeling: Geochimica et Cosmochimica Acta, 75, 1397–1410.CrossRefGoogle Scholar
  10. Compton, J.S. (1991) Origin and diagenesis of clay minerals in the Monterey formation, Santa Maria Basin area, California. Clays and Clay Minerals, 39, 449–466.CrossRefGoogle Scholar
  11. Czerewko, M. A. and Cripps, J. C. (2006) Sulfate and sulfide minerals in the UK and their implications for the built environment. The Geological Society of London, IAEG2006 paper number 121.Google Scholar
  12. Dooley, J.H. (2006) Glauconite. Pp. 495–506 in: Industrial Minerals & Rocks: Commodities, Markets, and Uses (J. Kogel, N. Trivedi, J. Barker, and N. Krukowski, editors). Society for Mining, Metallurgy, and Exploration, Littleton, Colorado, USA.Google Scholar
  13. Franzosi, C., Castro, L.N., and Celeda, A.M. (2014) Technical evaluation of glauconies as alternative potassium fertilizer from the Salamanca Formation, Patagonia, Southwest Argentina. Natural Resources Research, 23, 311–320.CrossRefGoogle Scholar
  14. Gaudin, A., Buatier M.D., Beaufort, D., Petit S., Grauby, O., and Decarreau, A. (2005) Characterization and origin of Fe3+-montmorillonite in deep water calcareous sediments (Pacific Ocean, Costa Rica margin). Clays and Clay Minerals, 53, 452–465.CrossRefGoogle Scholar
  15. Giresse, P. and Wiewióra, A. (1999) Origin and diagenesis of blue-green clays and volcanic glass in the Pleistocene of the Côte d’Ivoire Ghana marginal ridge (odp leg 159, site 959). Sedimentary Geology, 127, 247–269.CrossRefGoogle Scholar
  16. Giresse, P. and Wiewióra, A. (2001) Stratigraphic condensed deposition and diagenetic evolution of green clay minerals in deep water sediments on the Ivory Coast—Ghana Ridge. Marine Geology, 179, 51–70.CrossRefGoogle Scholar
  17. Gruner, J.W. (1935) The structural relationship of glauconite and mica. American Mineralogist, 20, 699–714Google Scholar
  18. Gupta, G.C. and Malik, W.U. (1969) Chloritization of montmorillonite by its coprecipitation with magnesium hydroxide. Clays and Clay Minerals, 17, 331–338.CrossRefGoogle Scholar
  19. Harder, H. (1980) Synthesis of glauconite at surface temperatures. Clays and Clay Minerals, 28, 217–222.CrossRefGoogle Scholar
  20. Harding, S.C., Nash, B.P., Petersen, E.U., Ekdale, A.A., Bradbury, C.D., and Dyar, M.D. (2014) Mineralogy and geochemistry of the main glauconite bed in the middle Eocene of Texas: Paleoenvironmental implications for the verdine facies. PloS One, 9, e87656.CrossRefGoogle Scholar
  21. Hower, J. (1961) Some factors concerning the nature and origin of glauconite. American Mineralogist, 46, 313–334.Google Scholar
  22. Huggett, J., Adetunji, J., Longstaffe, F., and Wray, D. (2017) Mineralogical and geochemical characterization of warm-water, shallow-marine glaucony from the Tertiary of the London basin. Clay Minerals, 52, 25–50.CrossRefGoogle Scholar
  23. Keller, W. (1958) Glauconitic mica in the Morrison Formation in Colorado. Clays and Clay Minerals, 5, 120–128.CrossRefGoogle Scholar
  24. Kelley, W.P. (1952) Interpretation of Chemical Analyses of Clays. Clays and Clay Minerals, 1, 92–94.CrossRefGoogle Scholar
  25. Kelly, J.C. and 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.CrossRefGoogle Scholar
  26. Kim, Y. and Lee, Y.I. (2000) Ironstones and green marine clays in the Dongjeom Formation (Early Ordovician) of Korea. Sedimentary Geology, 130, 65–80.CrossRefGoogle Scholar
  27. Longuépée, H. and Cousineau, P.A. (2006) Constraints on the genesis of ferrian illite and aluminum-rich glauconite: Potential impact on sedimentology and isotopic studies. The Canadian Mineralogist, 44, 967–980.CrossRefGoogle Scholar
  28. Loveland, P.J. (1981) Weathering of a soil glauconite in southern England. Geoderma, 25, 35–54.CrossRefGoogle Scholar
  29. Meunier, A. and El Albani, A. (2007) The glauconite-Fe-illite-Fe-smectite problem: A critical review. Terra Nova, Terra Nova, 95–104.CrossRefGoogle Scholar
  30. Moore, D.M. and Reynolds, R.C. (1997) Identification of clay minerals and associated minerals. Chapter 6, pp. 202–240 in: X-ray Diffraction and the Identification and Analysis of Clay Minerals, Oxford University Press, New York.Google Scholar
  31. Odin, G.S. (1990) Clay mineral formation at the continent-ocean boundary: The verdine facies. Clay Minerals, 25, 477–483.CrossRefGoogle Scholar
  32. Odin, G.S. (1988) (editor) Green Marine Clays: Oolitic Ironstone Facies, Verdine Facies, Glaucony Facies and Celadonite-Bearing Rock Facies — A Comparative Study. Developments in Sedimentology, 45, Elsevier, Amsterdam.Google Scholar
  33. Odin, G.S. and Fullagar, P.D. (1988) Green Marine Clays: Chapter C4 Geological significance of the glaucony facies. Developments in Sedimentology, 45, Elsevier, Amsterdam, 295–332.CrossRefGoogle Scholar
  34. Odin, G.S. and Matter, A. (1981) Origin of glauconites. Sedimentology, 28, 611–641.CrossRefGoogle Scholar
  35. Odom, I. E. (1984 ) Glauconite and celadonite minerals. Biochemical Journal, 319, 117–122.Google Scholar
  36. Savko, A., Zhabin, A., and Dmitriev, D. (2001) The morphology of zeolite particles of the heulandite group and minerals free of silica in sediments of the Voronezh anteclise: Vestnik, Voronezh State University. Geology, 12, 51–56.Google Scholar
  37. Siesser, W.G. and Rogers, J. (1976) Authigenic pyrite and gypsum in South West African continental slope sediments. Sedimentology, 23, 567–577.CrossRefGoogle Scholar
  38. Skiba, M., Maj-Szeliga, K., Szymański, W., and Błachowski, A. (2014) Weathering of glauconite in soils of temperate climate as exemplified by a Luvisol profile from Góra Puławska, Poland. Geoderma, 235–236, 212–226.CrossRefGoogle Scholar
  39. Strickler, M.E. and Ferrell, R.E., Jr. (1990) Fe substitution for Al in glauconite with increasing diagenesis in the first Wilcox sandstone (lower Eocene), Livingston Parish, Louisiana. Clays and Clay Minerals, 38, 69–76.CrossRefGoogle Scholar
  40. Tapper, M. and Fanning, D. (1968) Glauconite pellets: Similar X-ray patterns from individual pellets of lobate and vermiform morphology. Clays and Clay Minerals, 16, 275–283.CrossRefGoogle Scholar
  41. Thompson, G.R. and Hower, J. (1975) Mineralogy of glauconite. Clays and Clay Minerals, 23, 289–300.CrossRefGoogle Scholar
  42. Velde, B. (1976) The chemical evolution of glauconite pellets as seen by microprobe determinations. Mineralogical Magazine, 40, 753–760.CrossRefGoogle Scholar
  43. Velde, B. and Odin, G. (1975) Further information related to the origin of glauconite. Clays and Clay Minerals, 23, 376–381.CrossRefGoogle Scholar
  44. Vyalov, O.S. (1947) A comparison of the Paleogene formations of Turkmenistan with the Caucasus and Central Asian Paleogene formations. Izvestiya, National Academy of Science of the USSR, 3, 158.Google Scholar
  45. Wiewióra, A., Giresse, P., Petit, S., and 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.CrossRefGoogle Scholar
  46. Zheng, Q. (1983) Calculation of the Fe2+ and Fe3+ contents in silicate and Ti-Fe oxide minerals from EPMA data. Acta Mineralofica Sinica, 3:55–62.Google Scholar

Copyright information

© Clay Minerals Society 2018

Authors and Affiliations

  • Tursunai Bektemirova
    • 1
    • 2
    • 3
    • 4
    Email author
  • Apas Bakirov
    • 4
  • Ruizhong Hu
    • 1
    • 3
  • Hongping He
    • 2
    • 3
  • Yuanfeng Cai
    • 5
  • Wei Tan
    • 2
    • 3
  • Aiqing Chen
    • 2
    • 3
  1. 1.State Key Laboratory of Ore Deposit GeochemistryInstitute of Geochemistry of Chinese Academy of SciencesGuiyangChina
  2. 2.CAS Key Laboratory of Mineralogy and Metallogeny, Guangzhou Institute of GeochemistryChinese Academy of SciencesGuangzhouChina
  3. 3.University of Chinese Academy of SciencesBeijingChina
  4. 4.Institute of GeologyKyrgyz National Academy of ScienceBishkekKyrgyzstan
  5. 5.State Key Laboratory of Mineral Deposits Research, School of Earth Science and EngineeringNanjing UniversityNanjingChina

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