Depositional system and palaeoclimatic interpretations of Middle to Late Pleistocene travertines: Kocabaş, Denizli, south‐west Turkey

Toker, Ezher; Kayseri‐Özer, Mine Sezgül; Özkul, Mehmet; Kele, Sándor

doi:10.1111/sed.12186

Cited by 48 publications

(20 citation statements)

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“…Longer activities on the other hand, have been documented for travertine deposition in the Denizli basin, Turkey (at least 600 k.y. ; Engin et al, 1999;Altunel and Karabacak, 2005;Uysal et al, 2007;De Filippis et al, 2013aÖzkul et al, 2013Lebatard et al, 2014;Toker et al, 2015), and in the Rio Grande rift, United States (~660 k.y. ; Priewisch et al, 2014).…”

Section: Hydrothermalismmentioning

confidence: 99%

“…Thermogene travertine deposits have been documented to represent important markers for the mode and style of tectonic activity within hydrothermal settings (e.g., Altunel and Hancock, 1993;Hancock et al, 1999;Altunel and Karabacak, 2005;Uysal et al, 2007;Faccenna et al, 2008;Brogi and Capezzuoli, 2009;Brogi et al, 2010a;De Filippis and Billi, 2012;De Filippis et al, 2013b;Frery et al, 2015). Moreover, thermogene travertine has been used as a reliable indicator of paleoclimatic oscillations (Sturchio et al, 1994;Rihs et al, 2000;Soligo et al, 2002;Faccenna et al, 2008;Uysal et al, 2009;De Filippis et al, 2013a;Toker et al, 2015) and paleohydrological regimes (Crossey et al, 2006;Crossey and Karlstrom, 2012;Priewisch et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

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Tectonics, hydrothermalism, and paleoclimate recorded by Quaternary travertines and their spatio-temporal distribution in the Albegna basin, central Italy: Insights on Tyrrhenian margin neotectonics

et al. 2016

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The Neogene-Quaternary Albegna basin (southern Tuscany, central Italy), located to the south of the active geothermal field of Monte Amiata, hosts fossil and active thermogene travertine deposits, which are used in this study to reconstruct the spatio-temporal evolution of the feeding hydrothermal system. Travertine deposition is controlled by regional tectonics that operated through distributed N-Sand approximately E-W-striking transtensional fault arrays. The geochronological data set (230 Th/ 234 U, uranium-series disequilibrium) indicates a general rejuvenation (from >350 to <40 ka) of the travertine deposits moving from north to south and from higher to lower elevations. Negative d 13 C and positive d 18 O trends with younger deposition ages and lower depositional elevations provide evidence for a change in space and time of the hydrothermal fluid supply, suggesting a progressive dilution of the endogenic fluid sources by increasing meteoric water inputs. Comparison with paleoclimate records suggests increased travertine deposition during humid interglacial periods characterized by highstands of the water table. Travertine deposits of the Albegna basin record the interactions and feedbacks among tectonics, hydrothermalism, and paleoclimate within a region of positive geothermal anomaly during the Quaternary. Our study also sheds light on the neotectonic evolution of the Tyrrhenian margin of central Italy, where hydrothermalism has been distributed along margin-transverse structures during the Pleistocene and Holocene. It is hypothesized that originally upper-crustal, margin-transverse faults have evolved to through-going crustal features during the Quaternary, providing structurally controlled pathways for hydrothermal fluids. We suggest that this was the consequence of a change in the relative magnitude of the principal stress vectors along the Tyrrhenian margin that occurred under a regional stress field dominated by a continuous extensional regime.

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Section: Hydrothermalismmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Tectonics, hydrothermalism, and paleoclimate recorded by Quaternary travertines and their spatio-temporal distribution in the Albegna basin, central Italy: Insights on Tyrrhenian margin neotectonics

et al. 2016

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“…sparite cements, clotted peloidal micrite, crystalline dendrites) Della Porta et al, 2017). Nevertheless, in some cases, careful bulk sampling of homogenous parts of carbonate samples can be representative enough to answer the relevant scientific question Toker et al, 2015). Related to the sampling scale, is the observation that little information is currently available on the effect of microbial mineralization or the former presence of transient, metastable carbonaceous phases on the final geochemical signature in paleoclimatic archives like speleothems (Jones, 2010;Demény et al, 2016).…”

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confidence: 99%

What do we really know about early diagenesis of non-marine carbonates?

Boever

Brasier

Foubert

et al. 2017

Sedimentary Geology

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Non-marine carbonate rocks including cave, spring, stream, calcrete and lacustrine-palustrine sediments, are susceptible to early diagenetic processes. These can profoundly alter the carbonate fabric and affect paleoclimatic proxies. This review integrates recent insights into diagenesis of non-marine carbonates and in particular the variety of early diagenetic processes, and presents a conceptual framework to address them. With ability to study at smaller and smaller scales, down to nanometers, one can now observe diagenesis taking place the moment initial precipitates have formed, and continuing thereafter. Diagenesis may affect whole rocks, but it typically starts in nano-and micro-environments. The potential for diagenetic alteration depends on the reactivity of the initial precipitate, commonly being metastable phases like vaterite, Ca-oxalates, hydrous Mg-carbonates and aragonite with regard to the ambient fluid. Furthermore, organic compounds commonly play a crucial role in hosting these early transformations. Processes like neomorphism (inversion and recrystallization), cementation and replacement generally result in an overall coarsening of the fabric and homogenization of the wide range of complex, primary microtextures. If early diagenetic modifications are completed in a short time span compared to the (annual to millennial) time scale of interest, then recorded paleoenvironmental signals and trends could still acceptably reflect original, depositional conditions. However, even compact, non-marine carbonate deposits may behave locally and temporarily as open systems to crystal-fluid exchange and overprinting of one or more geochemical proxies is not unexpected. Looking to the future, relatively few studies have examined the behaviour of promising geochemical records, such as clumped isotope thermometry and (non-conventional) stable isotopes, in well-constrained diagenetic settings. Ongoing and future in-vitro and in-situ experimental approaches will help to investigate and detangle sequences of intermediate, diagenetic products, processes and controls, and to quantify rates of early diagenesis, bridging a gap between nanoscale, molecular lab studies and the fossil field rock record of non-marine carbonates.

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“…Akarca Köyü ve çevresinde yoğun olarak gözlenen bu tortullar, gölsel çökelim koşullarının denetiminde depolanmıştır. [33,34].…”

Section: Göl çöKelleriunclassified

Acıgöl Grabeni Kuzeyindeki Pliyo-Kuvaterner Yaşlı Karasal Çökellerin Fasiyes Özellikleri ve Bölgenin Paleoortamsal Gelişimi, GB-Türkiye

Tagliasacchi

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2019

Süleyman Demirel Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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Özet: Denizli'nin 65 km kuzeydoğusundaki Pliyosen ve Kuvaterner yaşlı karasal çökellerin sedimantolojik özellikleri ve bu çökellerin tektono-sedimanter gelişimi bu çalışmanın ana konusunu oluşturmaktadır. Çalışma alanında yüzlek veren bu tortullar, Acıgöl Grabeni'nin kuzeyinde Oligosen yaşlı molas karakterindeki kaba kırıntılı tortulları uyumsuz bir şekilde üzerlemektedir. Pliyo-Kuvaterner yaşlı bu karasal sedimanlar, kahverengimsi kırmızı renkli, kaba kırıntılı çakıltaşı, kumtaşı ve çamurtaşı ara katkılarından oluşan alüvyal yelpaze çökelleri, sarımsı kahverenkli çakıllı kumtaşı ve su altı kayma-oturma yapılarının belirgin olarak gözlendiği kilttaşı-silttaşından oluşan delta çökelleri ve beyazımsı gri renkli killi kireçtaşları, marn ve travertenlerden oluşan gölsel çökellerden oluşmaktadır. Bu çalışmada, 8 litofasiyes birimi tanımlanmıştır. Çalışma alanının güney kesiminde Acıgöl grabeni'ni sınırlayan KD-GB gidişli düşey atımlı Maymundağı Fayı "Çardak Fayı", GB-Anadolu'daki Neotektonik dönemi yansıtan en belirgin yapısal unsurlardan biridir. Bu ana faya paralel sintetik ve antitetik faylar sonucu yüzeye ulaşan termal sular, beyaz, masif ve sıkı dokulu, yer yer kırıklı ve çatlaklı traverten oluşumuna neden olmuştur. Ayrıca, bölgede en genç çökeller olarak yüzlek veren alüvyal yelpazelerin yanal ve düşey yöndeki gelişimi, grabeni sınırlayan genç faylar tarafından günümüze dek denetlenmektedir. Abstract:The sedimentological properties and tectono-sedimentary evolution of Pliocene and Quaternary continental deposits which is located at 65km's northeastern of Denizli, constitute the subject of this study. These sediments were disconformably overlie on Oligocene molasse deposits located on the north of Acıgöl graben. These terrrestrial sediments deposited during the Pliyo-Quaternary period consist of brownish, claret coloured, coarse detrital conglomerates, sandstones and mudstones intercalated of aluvial fan deposits, yellowish brown coloured pebbly sandstones, claystones-siltstones with slump structures of deltaic deposits and whitish grey coloured clayey limestones, marls and travertines of lacustrine deposits. In this study, 8 lithofacies units have been described and interpreted. Maymundağı fault "Çardak fault" which is NE-SW trending fault in the south of the study area presents vertical displacement and this fault is one of the significant structural components representing Neotectonic period of the SW Anatolia. The white, massive and compact, locally cracked and fractured travertines were precipitated depending on the thermal water which is up to the surface from syntetic and antitetic faults of the Maymundağı fault. Moreover, the young faults occurring parallel to main fault which bounded graben cut off ancient Quaternary alluvial fan and lateral and vertical developing of the new fans controlled by them till nowadays.

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Depositional system and palaeoclimatic interpretations of Middle to Late Pleistocene travertines: Kocabaş, Denizli, south‐west Turkey

Abstract: INTRODUCTION

Cited by 48 publications

References 55 publications

Tectonics, hydrothermalism, and paleoclimate recorded by Quaternary travertines and their spatio-temporal distribution in the Albegna basin, central Italy: Insights on Tyrrhenian margin neotectonics

Tectonics, hydrothermalism, and paleoclimate recorded by Quaternary travertines and their spatio-temporal distribution in the Albegna basin, central Italy: Insights on Tyrrhenian margin neotectonics

What do we really know about early diagenesis of non-marine carbonates?

Acıgöl Grabeni Kuzeyindeki Pliyo-Kuvaterner Yaşlı Karasal Çökellerin Fasiyes Özellikleri ve Bölgenin Paleoortamsal Gelişimi, GB-Türkiye

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