Geology, mineralogy, geochemistry, and depositional environment of a Late Miocene/Pliocene fluviolacustrine succession, Cappadocian Volcanic Province, central Anatolia, Turkey
Geology, mineralogy, geochemistry, and depositional environment of a Late Miocene/Pliocene fluviolacustrine succession, Cappadocian Volcanic Province, central Anatolia, Turkey
This paper investigates the mineralogy, geochemistry, and depositional environment of Late Miocene/Pliocene fluviolacustrinedeposits, including multiple ignimbrite levels and andesiticand basaltic lavas, within the Cappadocian Volcanic Province (CVP) of centralAnatolia, Turkey. Palaeosols and calcretes formed within these terrestrial sedimentary rocks under near-surface or surface conditions.The palaeosols are composed predominantly of smectite ± illite with feldspar, quartz, calcite, opal-CT, and amphibole, and the calcretesmainly of calcite with minor feldspar, quartz, and accessory smectite ± palygorskite. The palygorskite occurs on and between the calcitecrystals in the calcretes and at the edges of smectite flakes within the palaeosols, indicating an in situ formation from evaporated alkalinewater rich in Si and Mg and poor in Al under arid or seasonally arid climatic conditions. In the palaeosols and calcretes, negative Ba,Nb, Ce, Sr, and Ti anomalies and an enrichment of light rare earth elements relative to medium rare earth elements and heavy rare earthelements, with a distinct negative Eu anomaly, likely reflect the alteration of feldspars and amphiboles in the ignimbrite. The alteration ofthe ignimbrites caused the depletion of SiO2, Al2O3+Fe2O3, TiO2, and K2O through the precipitation of smectite ± illite in the palaeosolsand CaO in the form of calcite in the calcretes. The δ18O values of the calcretes and limestones range from –8.71‰ to –10.71‰, which are mainly related to the involvement of high-elevation meteoric water, whereas the δ13C values for the same rocks vary between –1.97‰ and 5.71‰. The positive δ13C values for the limestones reflect calcite precipitation in isotopic equilibrium with meteoric water in a lake.The slightly negative δ13C values of the lacustrine limestone carbonates may indicate precipitation from a relatively thick water column and an inflow of surface or groundwater through the ignimbrites with high Ba/Sr values. Conversely, the calcrete δ13C values (3.0‰ to 4.97‰) may suggest a pedogenic origin with low plant respiration rates and a predominance of C4 plants. Based on stable oxygen isotope values from the lake sediments and calcretes, this study suggests that the global warming trend that followed the Late Miocenecontinued into the Pliocene within the CVP.
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- Akgün F, Olgun E, Kuşcu I, Toprak V, Göncüoğlu MC (1995).
New data on the stratigraphy, depositional environment, and
real age of the Oligo-Miocene cover of the central Anatolian
crystalline complex. TPJD Bulletin 6: 51–68 (in Turkish with
English abstract).
- Atabey E, Atabey N, Kara H (1998). Kırşehir yöresi kaliş (kalkrit)
oluşumlarının sedimantolojisi. MTA Dergisi 120: 93–104 (in
Turkish).
- Aydar E, Schmitt AK, Çubukçu HE, Akin L, Ersoy O, Sen E, Duncan
RA, Atici G (2012). Correlation of ignimbrites in the central
Anatolian volcanic province using zircon and plagioclase ages
and zircon compositions. J Volcanol Geoth Res 213–214: 83–
97.
- Beekman PH (1966). Hasandağı-Melendizdağ Bölgelerinde Pliyosen
ve Kuvaterner volkanizma faaliyetleri. MTA Dergisi 66: 90–105
(in Turkish).
- Bohacs KM, Carroll AR, Neal JE (2003). Lessons from large lake
systems - thresholds, nonlinearity, and strange attractors.
In: Chan MA, Archer AW, editors. Extreme Depositional
Environments: Mega End Members in Geologic Time. Geo Soc
Am Spec Paper 370: 75–90.
- Bohacs KM, Carroll AR, Neal JE, Mankiewicz PJ (2000). Lakebasin type, source potential, and hydrocarbon character: an
integrated sequence-stratigraphic-geochemical framework.
In: Gierlowski-Kordesch EH, Kelts KR, editors. Lake Basins
Through Space and Time, AAPG Studies in Geology 46. Tulsa,
OK, USA: AAPG, pp. 3–33.
- Botz, RW, Von Der Borch CC (1984). Stable isotope study of
carbonate sediments from the Coorong Area, south Australia.
Sedimentology 31: 837–849.
- Boynton WV (1984). Cosmochemistry of the rare earth elements:
meteorite studies. In: Henderson P, editor. Rare Earth Element
Geochemistry. Amsterdam, the Netherlands: Elsevier, pp. 63–
114.
- Braide SP, Huff WD (1986). Clay mineral variation in Tertiary
sediments from the Eastern Flank of the Niger Delta. Clay
Miner 21: 211–224.
- Brindley GW (1980). Quantitative X-ray analysis of clays. In: Brindley
GW, Brown G, editors. Crystal Structures of Clay Minerals and
Their X-ray Identification. London, UK: Mineralogical Society
Monograph 5, pp. 411–438.
- Bristow TF, Kennedy MJ, Morrison KD, Mrofka DD (2012). The
influence of authigenic clay formation on the mineralogy
and stable isotopic record of lacustrine carbonates. Geochim
Cosmochim Ac 90: 64–82.
- Colson J, Cojan I, Thiry M (1998). A hydrogeological model for
palygorskite formation in the Danian continental facies of the
Provence Basin (France). Clay Miner 33: 333-347.
- Dirik K (2001). Neotectonic evolution of the northwestward arched
segment of the Central Anatolian Fault Zone, Central Anatolia,
Turkey. Geodin Acta 14: 147–158.
- Dunham RJ (1962). Classification of carbonate rocks according to
depositional texture. In: Ham WE, editor. Classification of
Carbonate Rocks. Tulsa, OK, USA: American Association of
Petroleum Geologists, pp. 108–121.
- Eren M (2011). Stable isotope geochemistry of Quaternary calcretes
in the Mersin area, southern Turkey - a comparison and
implications for their origin. Chem Erde-Geochem 71: 31–37.
- Erol O (1999). A geomorphological study of the Sultansazligi lake,
central Anatolia. Quaternary Sci Rev 18: 647–657.
- Galán E, Pozo M (2011). Palygorskite and sepiolite deposits in
continental environments. Description, genetic patterns
and sedimentary settings. In: Galán E, Singer E, editors.
Developments in Palygorskite-Sepiolite Research. A New
Outlook on these Nanomaterials. Developments in Clay Science,
Vol. 3. Amsterdam, the Netherlands: Elsevier, pp. 125–173.
- Gierlowski-Kordesch EH, Rust BR (1994). The Jurassic East Berlin
Formation, Hartford Basin, Newark Supergroup (Connecticut
and Massachusetts): a saline lake/playa/alluvial plain system. In:
Renaut RW, Last WM, editors. Sedimentology and Geochemistry
of Modern and Ancient Saline Lakes. Tulsa, OK, USA: Society
for Sedimentary Geology Special Pub. No. 50, pp. 249–265.
- Göncüoğlu C, Toprak V (1992). Neogene and Quaternary volcanism
of Central Anatolia: a volcano structural evolution. Bulletin de la
Section de Volcanologie Societe Geologique de France 26: 1–6.
- Görür N, Sakınç M, Barka A, Akkök R, Ersoy S (1995). Miocene
to Pliocene palaeogeographic evolution of Turkey and its
surroundings. J Hum Evol 28: 309–324.
- Gürel A (1991). Veränderung im Stoffbestand der Verwitterungsdecke
als Folge Natüricher Bodenbildungsprozesse und Antropogener
atmosphärischer Deposition. PhD, University of Göttingen,
Göttingen, Germany (in German).
- Gürel A (2009). Clay mineralogy of Neogene sequences of
Cappadocian Volcanic Provence (CVP, Central Anatolia):
Source of sediment-palaeosols and paleoclimatic variations.
YDABCAG–104Y070. Ankara, Turkey: TÜBİTAK (in Turkish
with English abstract).
- Gürel A, Kadir S (2006). Geology and mineralogy and origin of
clay minerals of the Pliocene fluvial-lacustrine deposits in the
Cappadocian Volcanic Province, Central Anatolia, Turkey.
Clay Clay Miner 54: 555–570.
- Gürel A, Kadir S (2008). Geology and mineralogy of Late Miocene
clayey sediments in the southeastern part of the Central
Anatolian Volcanic Province, Turkey. Clay Clay Miner 56:
307–321.
- Gürel A, Kadir S (2010). Palaeoenvironmental approach to the
geology, mineralogy and geochemistry of an Early Miocene
alluvial-fan to cyclic shallow-lacustrine depositional system in
the Aktoprak Basin (central Anatolia), Turkey. Clay Miner 45:
51–75.
- Gürel A, Yıldız A (2007). Diatom communities, lithofacies
characteristics and paleoenviromental interpretation of
Pliocene diatomite deposits in the Ihlara-Selime plain (Aksaray,
Central Anatolia, Turkey). J Asian Earth Sci 30: 170–180.
- Harrison TM, Copeland P, Hall SA, Quade J, Burner S, Ojha TP,
Kidd WSF (1993). Isotopic preservation of Himalayan/Tibetan
uplift, denudation, and climatic histories of two Molasse
deposits. J Geol 101: 157–175.
- Innocenti F, Mazzuoli R, Pasquare G, Radicati Di Brozolo F, Villari
L (1975). The Neogene calc-alcaline volcanism of Central
Anatolia: geochronological data on Kayseri-Niğde area. Geol
Mag 112: 349–360.
- Işık F, Baş H, Koçak K (2002). Petrographic and geochemical
characteristics of gabbroic rocks: Central Anatolian Massif,
Yeşilhisar-Kayseri (Turkey). Pamukkale Üniversitesi
Mühendislik Fakültesi Mühendislik Bilimleri Dergisi 8: 227–
238 (in Turkish with English abstract).
- Kadir S, Gürel A, Senem H, Külah T (2013). Geology of Late Miocene
clayey sediments and distribution of palaeosolclay minerals in
the northeastern part of the Cappadocian Volcanic Province
(Araplı-Erdemli), central Anatolia, Turkey. Turkish J Earth Sci
22: 427–443.
- Kampunzu AB, Ringrose S, Huntsman-Mapila P, Harris C, Vink
BW, Matheson W (2007). Origins and palaeo-environments of
Kalahari duricrusts in the Moshaweng dry valleys (Botswana)
as detected by major and trace element composition. J Afr
Earth Sci 48: 199–221.
- Karakaş Z, Kadir S (1998). Mineralogical and genetic relationships
between carbonate and sepiolite-palygorskite formations in the
Neogene lacustrine Konya Basin, Turkey. Carbonate Evaporite
13: 198–206.
- Khadkikar AS, Chamyal LS, Ramesh R (2000). The character and
genesis of calcrete in Late Quaternary alluvial deposits, Gujarat,
western India, and its bearing on the interpretation of ancient
climates. Palaeogeogr Palaeoclimatol Palaeoecol 162: 239–261.
- Khadkikar AS, Merh SS, Malik JN, Chamyal LS (1998). Calcretes
in semi-arid alluvial systems: formative pathways and sinks.
Sediment Geol 116: 251–260.
- Last WM (1994). Climatic and tectonic rhythms in lake deposits: an
IGCP Project 324 contribution. J Paleolimnol 11: 1–2.
- Leng MJ, Marshall JD (2004). Palaeoclimate interpretation of stable
isotope data from lake sediment archives. Quat Sci Rev 23:
811–831.
- Le Pennec JL, Bourdier JL, Froger JL, Temel A, Camus G, Gourgaud
A (1994). Neogene ignimbrites of the Nevşehir Plateau (Central
Anatolia): stratigraphy, distribution and source constraints. J
Volcanol Geoth Res 63: 59–87.
- Le Pennec JL, Temel A, Froger JL, Sen S, Gourgaud A, Bourdier JL
(2005). Stratigraphy and age of the Cappadocia ignimbrites,
Turkey: reconciling field constraints with paleontologic,
radiochronologic, geochemical and paleomagnetic data. J
Volcanol Geoth Res 141: 45–64.
- Lüdecke T, Mikes T, Rojay FB, Cosca MA, Mulch A (2013).
Stable isotope-based reconstruction of Oligo-Miocene
paleoenvironment and paleohydrology of central Anatolai lake
basins (Turkey). Turkish J Earth Sci 22: 793–819.
- McCrea JM (1950). On the isotopic chemistry of carbonates and a
paleotemperature scale. J Chem Phys 18: 849–857.
McDonough WF, Sun S (1995). The composition of the Earth. Chem
Geol 120: 223–253.
- Miall AD (1996). The Geology of Fluvial Deposits. Sedimentary
Facies, Basin Analysis, and Petroleum Geology. Amsterdam,
the Netherlands: Springer.
- Moore DM, Reynolds RC (1989). X-ray Diffraction and the
Identification and Analysis of Clay Minerals. New York, NY,
USA: Oxford University Press.
- Müller O (1895). Über Achsen, Orientierungs- und Symmetrieebenen
bei den Bacillariophyceen. Ber Deut Bot Ges 13: 222–334 (in
German).
- Pasquaré G (1968). Geology of the Cenozoic volcanic area of Central
Anatolia. Rome, Italy: Atti della Accademia nazionale dei
Lincei.
- Pasquaré G, Poli S, Vezzoli L, Zanchi A (1988). Continental arc
volcanism and tectonic setting in Central Anatolia, Turkey.
Tectonophysics 146: 217–230.
- Retallack GJ (1990). Soils of the Past: An Introduction to
Palaeopedology. London, UK: Unwin Hyman.
- Rollinson HR (1993). Using Geochemical Data: Evaluation,
Presentation, Interpretation. New York, NY, USA: John Wiley
and Sons.
- Sánchez C, Galán E (1995). An approach to the genesis of palygorskite
in a Neogene-Quaternary continental basin using principal
factor analysis. Clay Miner 30: 225–238.
- Sancho C, Melendez A, Signes M, Bastida J (1992). Chemical and
mineralogical characteristics of Pleistocene caliche deposits
from the central Ebro Basin, NE Spain. Clay Miner 27: 93–308.
- Schumacher R, Keller J, Bayhan H (1990). Depositional characteristics
of ignimbrites in Cappadocia, Central Anatolia, Turkey. In:
Savaşcın MY, Eronat AH, editors. Proceedings of the International
Earth Science Congress on Aegean Regions (IESCA-1990), Vol.
2. pp. 435–449.
- Schumacher R, Mues-Schumacher U (1996). The Kızılkaya ignimbritean unusual low-aspect-ratio ignimbrite from Cappadocia,
central Turkey. J Volcanol Geoth Res 70: 107–121.
- Schumacher R, Schumacher UM (1997). The pre-ignimbrite (phreato)
plinian and pheratomagmatic phases of the Akdag-Zelve
ignimbrite eruption in Central Anatolia, Turkey. J Volcanol
Geoth Res 78: 139–153.
- Şengör AMC, Yılmaz Y (1983). Türkiye’de Tetis’in evrimi: Levha
tektoniği açısından bir yaklaşım. Ankara, Turkey: Türkiye Jeoloji
Kurumu Yerbilimleri Özel Dizisi (in Turkish).
- Soil Survey Staff (1998). Keys to Soil Taxonomy. 8th ed. Washington,
DC, USA: US Department of Agriculture, Natural Resources
Conservation Service.
- Suárez M, Robert M, Elsass F, Martin Pozas JM (1994). Evidence of
a precursor in the neoformation of palygorskite- new data by
analytical electron microscopy. Clay Miner 29: 255–264.
- Talbot MR (1990). A review of the paleohydrological interpretation
of carbon and oxygen isotopic-ratios in primary lacustrine
carbonates. Chem Geo 80: 261–279.
- Talbot MR, Kelts K (1990). Paleolimnological signatures from carbon
and oxygen isotopic ratios in carbonates from organic carbonrich lacustrine sediments. In: Katz BJ, editor. Lacustrine Basin
Exploration: Case Studies and Modern Analogs. Tulsa, OK, USA:
American Association of Petroleum Geologists, pp. 88–112.
- Taylor SR, McLennan SM (1985). The Continental Crust: Its
Composition and Evolution. Oxford, UK, Blackwell.
- Temel A (1992). Kapadokya eksplozif volkanizmasının petrolojik ve
jeokimyasal Özellikleri. PhD, Hacettepe University, Ankara,
Turkey (in Turkish).
- Temel A, Gündoğdu MN, Gourgaud A, Le Pennec JL (1998).
Ignimbrites of Cappadocia (Central Anatolia, Turkey): petrology
and geochemistry. J Volcanol Geoth Res 85: 447–471.
- Toprak V (1996). The origin of the Quaternary basins which have
been developed in the Cappadocia volcanic subsidence, Central
Anatolia. Trabzon, Turkey: 30th Year Symposium, Karadeniz
Technical University, pp. 326–340.
- Toprak V (1998). Vent distribution and its relation to regional
tectonics, Cappadocian Volcanics, Turkey. J Volcanol Geoth
Res 85: 55–67.
- Valero Garcés BL, Gierlowski-Kordesch EH, Bragonier WA (1997).
Pennsylvanian continental cyclothem development: no
evidence of direct climate control in the Upper Freeport
Formation (Alleghenian) of Pennsylvania. Sediment Geol 109:
305–320.
- Verrecchia EP, Le Coustumer MN (1996). Occurrence and genesis
of palygorskite and associated clay minerals in a Pleistocene
calcrete complex, Sde Bowuer, Negev Desert, Israel. Clay
Miner 31: 183-202.
- Viereck-Goette L, Lepetit P, Gürel A, Ganskow G, Çopuroğlu İ,
Abratis M (2010). Revised volcanostratigraphy of the Upper
Miocene to Lower Pliocene Ürgüp Formation, Central
Anatolian volcanic province, Turkey. GSA Special Papers 464:
85–112.
- Wright VP, Platt NH (1995). Seasonal wetland carbonate sequence
and dynamic catenas: a re-appraisal of palustrine limestones.
Sediment Geol 99: 65–71.
- Wright VP, Tucker ME (1991). Calcretes. Oxford, UK: Blackwell.
Xu Q, Ding L, Zhang L, Cai F, Lai Q, Yang D, Liu-Zeng J (2013).
Paleogene high elevations in the Qiangtang Terrance, central
Tibetan Plateau. Earth Planet Sci Lett 362: 31–42.
- Yalçın H, Bozkaya O (2011). Sepiolite-palygorskite occurrences
in Turkey. In: Galán E, Singer E, editors. Developments in
Palygorskite-Sepiolite Research. A New Outlook on these
Nanomaterials. Developments in Clay Science, Vol. 3.
Amsterdam, the Netherlands: Elsevier, pp. 175–200.
- Yavuz-Işık N, Toprak V ( 2010). Palynostratigraphy and vegetation
characteristics of Neogene continental deposits interbedded
with the Cappadocia ignimbrites (Central Anatolia, Turkey).
Int J Earth Sci (Geol Rundsch) 98: 949–1184.
- Yıldız FE, Dilaver AT, Gürer İ, Ünsal N, Bayari S, Türkileri S, Çelenk
S (2008). Develi kapalı havzası’nda yeraltı suyu ve yüzey suyu
ilişkisinin doğal izotoplarla belirlenmesi. İstanbul, Turkey:
Devlet Su İşleri Genel Müdürlüğü, III. Hidrojeolojide İzotop
Teknikleri Sempozyumu, pp. 20–35.