Late Pleistocene calcretes from Central Anatolia (Lakes Eymir and Mogan, Gölbaşı Basin): Comparison to quaternary calcretes from Turkey

Abstract

This study is the first to report the radiocarbon ages, mineralogical, morphological, geochemical and stable isotope compositions of calcretes from Neogene sediments around lakes Eymir and Mogan in the Gölbaşı Basin of Central Anatolia. Morphologically different forms of calcretes in the Gölbaşı Basin include powdery, nodular, fracture infill, laminar and hardpan types. Calcite is the dominant mineral of calcrete compositions; the diagnostic features of dessication cracks, random fractures, MnO linings and dense sparitic infillings are observed. Chemical analyses show arid conditions with mean annual precipitation of <50 mm. δ¹³C compositions of the calcretes range from -6.77‰ to -9.32‰ PDB, typical for most pedogenic calcretes, reflecting the development under seasonally arid climates and C3-dominated vegetation cover. δ¹⁸O values are between -5.57‰ and - 7.80‰ PDB, indicating the formation from meteoric water in a vadose zone environment. The results suggest that the Middle Pleistocene was arider and warmer, favouring the formation of palygorskite in association with the different forms of calcrete occurrences, whereas the Late Pleistocene was dryer and cooler, supporting the development of calcretes.

Keywords

calcrete / micromorphology / stable isotopes / mineralogy / Central Anatolia

References

Akyürek B. Fundamental Geological Characteristics of Northern Part of Ankara Melange, 1981, 41-52.

Akyürek B., Bilginer E., Çatal E., . Geology of the Eldivan-Sabanözü (Çankiri) and Hasayaz-Çandir (Kalecik-Ankara) Regions, 1980, 6741.

Akyurek B., Bilginer E., Dager Z., . Evidences for the Ophiolite Emplacement around Eldivanli–Sabanözü. Chamber Geol. Eng., 1979, 9: 5-11.

Akyürek B., Bilginer E., Dager Z., . The Occurrence of the Lower Triassic of the Hacilar (N of Çubuk- Ankara). Bull.Geol. Soc. Turkey, 1979, 22: 169-174.

Akyürek, B., Duru, M., Sütçü, Y. F., et al., 1997. 1: 100 000 Scale Geological Maps of Turkey, No: 55, Ankara F-15 Sheet. General Directorate of Mineral Research and Exploration, Ankara (in Turkish)

Alçiçek H., Jiménez-Moreno G. Late Miocene to Plio-Pleistocene Fluvio-Lacustrine System in the Karacasu Basin (SW Anatolia, Turkey): Depositional, Paleogeographic and Paleoclimatic Implications. Sedimentary Geology, 2013, 291: 62-83.

Alçiçek H., Alçiçek M. C. Palustrine Carbonates and Pedogenic Calcretes in the Çal Basin of SW Anatolia: Implications for the Plio-Pleistocene Regional Climatic Pattern in the Eastern Mediterranean. Catena, 2014, 112: 48-55.

Alonso-Zarza A. M. Initial Stages of Laminar Calcrete Formationby Roots: Examples from the Neogene of Central Spain. Sedimentary Geology, 1999, 126: 177-191.

Alonso-Zarza A. M., Arenas C. Cenozoic Calcretes from the Teruel Graben, Spain: Microstructure, Stable Isotope Geochemistry and Environmental Significance. Sedimentary Geology, 2004, 167: 91-108.

Atabey E., Atabey N., Kara H., . Sedimentology of Caliche (Calcrete) Occurrences of the Kirsehir Region. Bulletin of the Mineral Research and Exploration, 1998, 120: 69-80.

Atabey E., Ilgar A., Sakitas A., . Çanakkale Havzas in inOrta-Üst Miyosen Stratigrafisi, Çanakkale, KB Türkiye. Bulletin of Mineral Research and Exploration, 2004, 128: 79-97.

Atalay I. Palaeosols as Indicators of the Climatic Changes during Quaternary Period in S Anatolia. Journal of Arid Environments, 1996, 32: 23-35.

Bajnoczi B., Horvath Z., Demeny A., . Stable Isotope Geochemistry of Calcrete Nodules and Septarian Concretions in a Quaternary ‘Red Clay’ Paleovertisol from Hungary. Isotopes in Environmental and Health Studies, 2006, 42: 335-350.

Brindley G. W. Quantitative X-Ray Analyses of Clays. Crystal Structures of Clay Minerals and Their X-Ray Identification. Mineralogical Society Monograph, 1980, 5: 411-438.

Candy I., Adamson K., Gallant C. E., . Oxygen and Carbon Isotopic Composition of Quaternary Meteoric Carbonates from western and Southern Europe: Their Role in Palaoenvironmental Reconstruction. Palaeogeography, Palaeoclimatology, Palaeoecology, 2012, 326–328: 1-11.

Cerling T. E. The Stable Isotopic Composition of Modern Soil Carbonate and Its Relationship to Climate. Earth and Planetary Science Letters, 1984, 71: 229-240.

Cerling T. E. Use of Carbon Isotopes in Paleosols as Indicator of the PCO2 the Paleoatmosphere. Global Biogeochemical Cycles, 1992, 6: 307-314.

Deutz P., Montanez I. P., Monger H. C., . Morphology and Isotope Heterogeneity of Late Quaternary Pedogenic Carbonates: Implications for Paleosol Carbonates as Paleoenvironmental Proxies. Palaeogeography, Palaeoclimatology, Palaeoecology, 2001, 166: 293-317.

Eren M. Genesis of Tepees in the Quaternary Hardpan Calcretes, Mersin, S Turkey. Carbonates and Evaporites, 2007, 22: 123-134.

Eren M. Stable Isotope Geochemistry of Quaternary Calcretes in the Mersin Area, Southern Turkey—A Comparison and Implications for Their Origin. Chemie der Erde, 2011, 71: 31-37.

Eren M., Hatipoglu-Bagci Z. Karst Surface Features of the Hard Laminated Crust (Caliche Hardpan) in the Mersin area, Southern Turkey. Acta Carsologica, 2010, 39: 93-102.

Eren, M., Kadir, S., Hatipoglu, Z., et al., 2008). Quaternary Calcrete Development in the Mersin Area, Southern Turkey. Turkish Journal of Earth Sciences,17: 763–784

Fitzpatrick E. A. Soil Microscopy and Micromorphology, 1993 New York: John Wiley and Sons Ltd., 304.

Gallala W., Gaied M. E., Essefi E., . Pleistocene Calcretes from Eastern Tunisia: The Stratigraphy, the Microstructure and the Environmental Significance. Journal of African Earth Sciences, 2010, 58: 445-456.

Gong S. Y., Mii H. S., Wei K. Y., . Dry Climate near the Western Pacific Warm Pool: Pleistocene Caliches of the Nansha Islands, South China Sea. Palaeogeography, Palaeoclimatology, Palaeoecology, 2005, 226: 205-213.

Goudie A. S. Duricrusts in Tropical Landscapes, 1973 Oxford: Clarendon Press, 174.

Goudie A. S. Goudie A. S., Pye K. Calcrete. Chemical Sediments and Geomorphology, 1983 London: Academic Press, 93-131.

Göz E., Kadir S., Gürel A., . Geology, Mineralogy, Geochemistry, and Depositional Environment of a Late Miocene/Pliocene Fluviolacustrine Succession, Cappadocian Volcanic Province, Central Anatolia, Turkey. Turkish Journal of Earth Sciences, 2014, 23: 386-411.

Gürel A. Clay Mineralogy of Neogene Sequences of Cappadocian Volcanic Provence (CVP, Central Anatolia): Source of Sediment-Palaeosolsand Paleoclimatic Variations, 2009 Ankara: TÜBITAK-YDABCAG–104Y070, 243.

Gürel A., Kadir S. Geology, Mineralogy and Origin of Clay Minerals of The Pliocene Fluvial-Lacustrine Deposits in The Cappadocian Volcanic Province, Central Anatolia, Turkey. Clay and Clay Minerals, 2006, 54: 555-570.

Jackson M. L. Soil Chemical Anaylsis-Advanced Course, 1979 Wisconsin, U. S. A.: Libraries Parallel Press, 895.

James N. P., Choquette P. W. Diagenesis 9.Limestones-Themeteoric Diagenetic Environment. Geoscience Canada, 1984, 11: 161-194.

Kadir S., Eren M. The Occurrence and Genesis of Clay Minerals Associated with Quaternary Caliches in the Mersin Area, Southern Turkey. Clays and Clay Minerals, 2008, 56: 244-258.

Kadir S., Eren M., Atabey E. Dolocretes and Associated Palygorskite Occurrences in Siliciclastic Red Mudstones of the Sariyer Formation (Middle Miocene), Southeastern Side of the Çanakkale Strait, Turkey. Clays and Clay Minerals, 2010, 58: 205-219.

Kadir S., Eren M., Külah T., . Genesis of the Late Miocene–Pliocene Lacustrine Palygorskite and Calcretes from Kirsehir, Central Anatolia, Turkey. Clay Minerals, 2014, 49: 473-494.

Kadir S., Gürel A., Senem H., . Geology of Late Mioceneclayey Sediments and Distribution of Palaeosolclay Minerals in the Northeastern Part of the Cappadocian Volcanic Province (Arapli-Erdemli), Central Anatolia, Turkey. Turkish Journal of Earth Sciences, 2013, 22: 427-443.

Kaplan M. Y., Eren M., Kadir S., . Mineralogical, Geochemical and Isotopic Characteristics of Quaternary Calcretes in the Adana Region, Southern Turkey: Implications on Their Origin. Catena, 2013, 101: 164-177.

Kaplan M. Y., Eren M., Kadir S., . A Microscopic Approach to the Pedogenic Formation of Palygorskite Associated with Quaternary Calcretes of the Adana Area, Southern Turkey. Turkish Journal of Earth Sciences, 2014, 23: 559-574.

Kapur S., Çavusgil V. S., Fitzpatrick E. A. Federoff N., Bresson L. M., Courty M. A. Soil- Calcrete (Caliche) Relationship on a Quaternary Surface of the Çukurova Region, Adana (Turkey). Soil Micromorphology Association Francaise Pour L’Etudedusol, 1987, 597-603.

Kapur S., Çavusgil V. S., Senol M., . Geomorphology and Pedogenic Evolution of Quaternary Calcretes in the Northern Adana Basin of Southernturkey. Zeitschriftfür Geomorphologie, 1990, 34: 49-59.

Kapur S., Saydam C. A., Ça E., . Lal R., Kimble J. M., Eswaran H., . Carbonate Pools in Soil of the Mediterranean: A Case Study from Anatolia. Global Climate Change and Pedogenic Carbonates, 2000 Boca Raton, Florida: Lewis Publishers, 187-212.

Kapur S., Yaman S., GökÇen S. L., . Soil Stratigraphy and Quaternary Caliche in the Misis Area of the Adana Basin, Southern Turkey. Catena, 1993, 20: 431-445.

Kovács J., Raucsik B., Varga A., . Clay Mineralogy of Red Clay Deposits from the Central Carpathian Basin (Hungary) Implications for PlioPleistocene Chemical Weathering and Paleoclimate. Turkish Journal of Earth Sciences, 2013, 22: 414-426.

Küçükuysal C., Kapur S. Mineralogical, Geochemical and Micromorphological Evaluation of the Plio- Quaternary Paleosols and Calcretes from Karahamzali, Ankara (Central Turkey). Geologica Carpathica, 2014, 65: 241-253.

Küçükuysal C., Türkmenoglu A. G., Kapur S. Multi- Proxy Evidence of Mid-Pleistocene Dry Climates Observed in Calcretes in Central Turkey. Turkish Journal of Earth Sciences, 2013, 22: 463-483.

Machette M. N. Calcic Soils of Southwestern United States. Geol. Soc. Am. Spec., 1985, 203: 1-21.

Moore D. M., Reynolds J. R. X-Ray Diffraction and the Identification and Analysis of Clay Minerals, 1989 Oxford: Oxford University Press, 332.

Özer A. M., Wieser A., Göksu H. Y., . ESR and TLAge Determination of Caliche Nodules. International Journal of Radiation Applications and Instrument, Part A: Applied Radiation and Isotopes, 1989, 40: 1159-1989.

Purvis K., Wright V. P. Calcretes Related to Phreatophytic Vegetation from the Middle Triassic Ottar Sandstone of South West England. Sedimentology, 1991, 38: 539-551.

Retallack G. J. A Colour Guide to Paleosols, 1997 Chichester: Wiley, 188.

Retallack G. J. Soils of the Past, 2001, 600

Salomons W., Gourdie A., Mook W. G. Isotopic Composition of Calcrete Deposits from Europe, Africa and India. Earth Surface Processes, 1978, 3: 43-57.

Sheldon N. D., Retallack G. J., Tanaka S. Geochemical Climofunctions from North America Soils and Application to Paleosols across the Eocene-Oligocene Boundary in Oregon. Journal of Geology, 2002, 110(6): 687-696.

Sheldon N. D., Tabor N. J. Quantitative Paleoenvironmental and Paleoclimatic Reconstruction Using Paleosols. Earth-Science Reviews, 2009, 95: 1-52.

Thorez J. Practical Identification of Clay Minerals, 1976, 89.

Tucker M. Techniques in Sedimentology, 1988 Oxford: Scientific Publications, 394.

Wright V. P., Tucker M. E. Calcretes, 1991 Oxford: Blackwell Scientific Publications, 351

Yağbasan Ö. Modelling of Mogan and Eymir Lakes Aquifer System: [Dessertation], 2007 Ankara: Middle-East Technical University, 163.