Türkiye Jeoloji Bülteni
Türkiye Jeoloji Bülteni

Türkiye Jeoloji Bülteni

1988 ŞUBAT Cilt 31 Sayı 1
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Depositional Properties of the Coal-Bearing Tertiary Sediments and Investigation of Their Geophysical Signatures, Around Çatalca-Istanbul
Ahmet Ercan Fuzuli Yağmurlu Bektaş Uz
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Abstract: The Oligocene sediments occuring around of Çatalca are divided in two different rockunits, i.e., sandstone-conglomerate and marl. The pre-Tertiary basement rocks are gneiss, micaschists,marble and quarzite which are representatives of the Istranca metamorphic massif.The sandstone-conglomerate unit is composed of poorly consolidated sandstone, mudstone andconglomerates as channel deposits. Local existance of coaled plant fossils and local intersupplementarycoals are observed in the sandstone section. Sedimentological and textural properties of the sandstone conglomerate unit indicate that such unit possibly deposited in alluvial environment. Lignite occurance,observed with varying dimensions which possible deposited in flood-plainmarshes of fluvial environment.The marl unit consists of mainly clayey limestone, calceraous shale, mudstone and claystone whichshow cyclic and ordered lamination. Clastic horizons which are composed of well sorted quartz-arenitsituate in many levels in marl section. Major rock components of the marl unit, indicate a lagoonal typeshallow depositionaî environment. In addition to textural properties and lateral stratigraphic variationsof quartz-arenites, represent the existance of a beach type clastic shore plains.

  • Çatalca

  • Tertiary

  • sandstone

  • micaschists

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  • Aslaner, M., 1966, Tozakh-Poyralı linyitleri ve Pınarhisar civarının jeolojisi: MTA Derg. 66, 126-143,

  • Doust, H. ve Arıkan, V., 1974, The Geology of the Thrace Basin: Türkiye 2. Petrol Kongresi, tebliğler, 119-136.

  • Folk, R.L, 1968, Petrology of sedimentary rocks: Hemphill`s Austin, 170 pp.

  • Gökçen, N., 1973, Pınarhisar Formasyonunun yaşı ve ortam şartlarında görülen yanal değişmeler (kuzey, kuzeydoğu Trakya): Cumhuriyetin 50. yılı Yerbilimleri Kongresi, tebliğler, 128-143.

  • Keskin, C, 1971, Pınarhisar alanının jeolojisi: Türkiye Jeoloji Kur. Bült, XIV-1, 31-85.

  • Keskin, C, 1974, Kuzey Ergene havzasının stratigrafisi: Türkiye 2. Petrol Kongresi, tebliğler, 137-163.

  • Ketin, t., 1983, Türkiye jeolojisine genel bir bakış: ÎTÜ yayım 595 sayfa.

  • Nakoman, E., 1966, Etude palynologique des formations Tertiaires du Bassin de Thrace. Applications stratigraphiques: These de FUniv. de Lüle.

  • Parejas, E., 1939, Trakya linyitlerinin jeolojik etüdü: MTA Rap. (yayınlanmamış), no. 981, Ankara

  • Pekmezciler, S., 1957, Saray çevresindeki 56/34 sayılı ruhsat sahasına ait fen raporu: MTA Rap, no. 2610 (yayınlanmamış), Ankara.

  • Petrofahric Features in Shear Zones: Dimensional Fabric Orientation and Grain Shape Analyses
    İhsan Seymen
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    Abstract: In the shear zones, which are developed by ductile behaviour of crystalline rocks, the grainshape analyses were carried out and the rose diagrams of dimensional grain orientation were also produced. The geometrical variations of the shapes of the rock-forming minerals and their dimensionalpreferred orientation are related to the tectonic history of the shear zones and in agreement to theresults derived from petrofabric analyses. In spite f)i these, it can be concluded that the statistical results, obtained from the grain shape analyses, do not reflect properly the absolute amount of natural deformation and the range of strain variation within the shear belts. 

  • crystal

  • deformation

  • shear zones

  • tectonic

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  • Flinn, D., 1965, On the symmetry principle in the deformation ellipsoid, Geol. Mag., 102, 36-45.

  • Grocott, J., 1979, Shape fabrics and superimposed simple shear strain in a Precambrian shear belt, W. Greenland, J. GeoL Soc. London, 136,471-488.

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  • Ramsay, J.G. ve Graham, R.H., 1970, Strain variation in shear belts, Can. J. Eartn ScL, 7, 786-813.

  • Ramsay, J.G. ve Allison, I., 1979, Structural analysis of shear zones in an Alpinised Hercynian Granite, Schweiz Miner. Petrog. Mitt., 59, 251-279.

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  • Sander, B., 1950, Einführung in die Gefügekunde der Geologischen Körper, II., Springer Verlag, Viyana, 409 s.

  • Seymen, î., 1970, Petrofabric study of shear zone, unpublished JVLSc. Thesis, Univ. of London, Londra, 40 s.

  • Simpson, C, 1980, Oblique girdle orientation patterns of quartz c-axes from a shear zone in the basement core of the Maggia Nappe, Ticino, Switzerland, J. Struct. Geol, 2, 243-247.

  • Simpson, C, 1983a, Strain and shape-fabric variations associated with ductile shear zones, J. Struct, Geol., 5, 61-72.

  • Simpson, C, 1983b, Displacement and strain patterns from naturally occurring shear zone terminations, J. Struct. Geol., 5, 497-506.

  • Tickell, F.G., 1947, The Examination of Fragmental Rocks, Calif. Stanford Univ. Press, 3rd eds., Palo Alto, 127 s.

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  • Watts, MJ. ve Williams, G.D., 1983, Strain geometry, microstructure and mineral chemistry in metagabbro shear zones: A study of softening mechanisms during progressive mylonitization, J. Struct. Geol., 5, 507-517.

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  • Mineralogy, Petrography and Geochemistry of Gabbios from Northeast of Kaman Region (Kırşehir)
    A. Piril Önen Coşkun Unan
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    Abstract: In this study, mineralogy, petrography and geochemistry of gabbros, from Northeast ofKaman Region (Kırşehir), were investigated. Gabbros generally consist of plagioclase, hornblende, augiteand rarely olivine. Chlorite, tremolite, calcite, quartz, albite, epidote and biotite are observed as alterationminerals. The accessory minerals are magnetite, ilmenite, hematite and pyrite as opaque minerals, andalso sphene and apatite. Generally, rocks are defined as hornblende-gabbro or fine grained-gabbro. According to chemical analyses results, gabbros are crystallized from subalkaline tholeiitic type of magmaand these gabbros may represent a member of an ophiolitic sequence. 

  • gabbro

  • mineralogy

  • petrography

  • alteration

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  • Buchardt, W. S., 1954, Geology of Central Anatolia: M.T.A., Rapor no. 2675.

  • Coleman, R.G., 1977, Ophiolites: Springer-Verlag, Berlin, Heidelberg, 42-43.

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  • Yoder, H.S., 1979, The evolution of the igneous rocks: Princeton University Press, 588s.

  • On the Presence of Siderolites Denticulatus Douvillein Elmalı Region (Antalya, South-West Turkey)
    İbrahim Engin Meriç
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    Abstract: The genus Siderolites of the family Calcarinidae is widely observed within the Maastrichtianaged shallow-marine sedimentary sequences of Anatolia. However, as is known, the only species foundin the Maastrichtian is Siderolites calcitrapoides Lamarck. The species Siderolites denticulatus Douvillewhich is known in the Maastrichtian age sediments of Europa is determined for the first time.

  • Siderolites calcitrapoides

  • Elmalı

  • Antalya

  • Turkey

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  • Liassic Volcanics in Akhisar (Manisa) Region and Distribution of Early Mesozoic Volcanism Around the Aegean Sea
    Necati Akdeniz Tuncay Ercan
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    Abstract: Volcanic rocks of Lower Jurassic age, which crop out in the southeast of Akhisar, haverecently been identified. They are intercalated with marine deposits, with characterize a shallowwater enviroment. Greenish compact meta-volcanics are petrographically rhyolitic. Major elementanalyses indicate that they are calc-alkaline in character.Distribution and the localitions of the Triassic and Jurassic volcanics which crop out in West Anatolia, Aegean islands and the mainland Greece are summarized on the map. Triassic volcanics aremainly spilitic and basaltic. Differentiated products are subordinate. Jurassic volcanics consist of spilitic, basaltic, andesitic and dasitic rocks.Their petrochemical character and mode of occurance are discussed in order to understand therelation between the feodynamic evolution of the region and the genesis of the volcanism during theEarly Mesozoic.On consideration of the data, the products of Triassic-Jurassic volcanism seem to be related torifting and subduction processes. 

  • volcanism

  • West Anatolia

  • Triassic

  • subduction

  • andesitic

  • basaltic

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  • Gökdeniz, S., 1983, Batı Toroslardaki Triyas yaşlı yeşil tüfitli serilerin jeotektonik anlamı: 37 Türkiye Jeoloji Bilimsel ve Teknik Kurultayı Bildiri Özetleri Kitabı, 14.

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  • Sideris, C, 1967, The volcanites of Tzumerka: Prakt, Akd. Ath., 42, 103-114.

  • Sideris, C. ve Skounakis, S., 1985, Early Mesozoic evaporites, volcanites, normal faulting and the existence of a trough axial rift in the Greek mainland: Geologica Balcanica, 15, 70-75.

  • Smith, A.G., Hynes, A.J., Menzies, M., Nisbet, E.G., Price, I., Welland, MJ. ve Ferriere, J., 1975, The stratigraphy ofthe Orthis mountains eastern central Greece; a deformed Mesozoic continental margin sequence: Eel. Geol. Helv., 68/3, 463-481.

  • Şenel, M., Serdaroğlu, M., Kengîl, R., Ünverdi, M. ve Gözler, M.Z., 1983, Teke Toroslan güneydo ğusunun jeolojisi: MTA Deı`g., 95/96, 13-42.

  • Şengör, A.M.C., Yılmaz, Y. ve Ketin, I., 1980, Rem nants of a Pre-Late Jurassic ocean in nort hern Turkey; Fragments of Permian-Triassic Paleo-Tethys: Geol. Soc. Amer. Bull., 91/1, 599-609.

  • Şengör, A.M.C. ve Yılmaz, Y., 1981, Tethyan evolution of Turkey; A plate tectonic approach: Tectonophysics, 75, 181-241.

  • Tokel, S., Liyas volkanitlerinin Kuzey Anadolu`daki dağılımı, Jeokimyası ve Kuzey Tetis ada yays sistemi evriminin açıklanmasmdaki önemi: 37. Türkiye Jeoloji Bilimsel va Teknik Kurultayı Bildiri Özetleri Kitabı, 42-44.

  • Verriez, J.J., 1976, Sur les formations volcaniques basiques d`Atalanti (Locride-Greece): Bull. Soc Geol. France, 18/2, 293-298.

  • Yılmaz, P.O., Maxwell, J.C. ve Muchlberger, W.R., 1981, Antalya kopleksinin yapısal evrimi ve Doğu Akdenizdeki yeri: Hacettepe Yerbilimleri, 7, 119-127.

  • Yılmaz, Y., Tüysüz, O., Gözübol, A.M. ve Yiğitbaş, E., 1981, Abant (Bolu)-Dokurcun (Sakarya) ara^ smdaki Kuzey Anadolu Fay zonunun kuzey ve güneyinde kalan tektonik birliklerin jeo« löi-k evrimi: İstanbul Yerbilimleri Derg., 2, 239-261.

  • Zanettin, B., 1984, Proposed new chemical classification of volcanic rocks: Episodes, 7/4, 19-20.

  • The Paleontology and Biogeography of the Pironaean (Rudist) Species from the Central-East-Southeast Anatolia and Kocaeli Peninsula
    Sacit Özer
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    Abstract: In this paper, the paleontologic study and the biogeography öf the species Pironaea tima.censis, P. corrugata, P. praeslavonica, P. polystyla and P. anatolica from the various localities of Tur*key, have been given.

  • paleontologi

  • biogeography

  • Kocaeli

  • Turkey

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  • Milovanovic, B., Sladic-Trifunovic, M. ve Grubic, A., 1972, Proprietes taxonomiques et morpholo, giques especes du genre Rudistique: Ann, Geol. Pen. Balk, 37, 1, 95-96, Beograde.

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  • Üzer, S, 1983, Les formations â Rudistes du Seiionien Superieur d`Anatolie Centrale (Turquie): Trav. Lab. Stratigraphie et de Pale^o^cologie, Univ. de Province-Marseille, Nouvelle S^rie, 1, 32 s, Marseille.

  • Özer, S, 1985 a, Kahta-Adıyaman dolayı Besni formasyonundaki Rudistlerin stratigrafik önemi : T.J.K. Kurultayı 1985, Bildiri Özleri, 46, An« kara.

  • Özer, S, 1985 b, îç Anadolu Bölgesi Rudist paleontolojisi ve paleobiyocoğrafyası, Doktora Tezi, 183 s. (yayınlanmamış), îzmir.

  • Özsayar, T, Pelin, S. ve Gedikoğlu, A., 1981, Doğu Pontidler`de Kretase: Karadeniz Tekn. Üniv. Yer Bil. Derg, 1, 2, 65-115, Trabzon.

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  • Seymen, I. ve Aydın, Y., 1980, Hekimhan-Hasançelebi çevresinin stratigrafik gelişimi ve Mesozoyiîç yaşlı bir magmatik yayın jeotektonik evrimi : 34. Türkiye Jeoloji Bilim, ve Teknik Ku rul., Bildiri Özetleri, 74, Ankara.

  • Sladic-Trifunovic, M., 1967, Sur les Pironaea de 1`île de Brâc: Univ. Beograd, Recueil Trav. Fac. Mines GeoL, 9-10, 283-291.

  • Sladic-Trifunovic, M., 1978, Pironaea branisîavi, a new pironaean species from the Maestrichtien sediments of the Vrbovac reef, loc. Ba* cevica, Eastern Serbia: Ann. GeoL Pen, Balk., XLII, 401412, Belgrade.

  • Sladic-Trifunovic, M., 1983, Paleontological characteristics and biostratigraphic significance of Pseudopolyconites: Ann. GeoL Pen. Balk., XLVII, 309 s.

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  • Woodward, S.P., 1855, On the structur and affinities of the Hippuritidae: Quart. Journ. GeoL Soc London, 11, 40 s.

  • Van Andel, T.H., 1976, An electid overwiev Plate Tectonics : Paleogeography and Paleoceanography; Gray, J. ve Boucot, A., ed., Historical biogeography, Plate Tectonics and the changing environment da : Biology Colloquim, 35 th., Oregon State Univ. press, 9-25.

  • Yalçın, N., 1977, Geology of the Narince-Gerger area (Adıyaman province) and its petroleum possibilities : tst. Üniv. Fen Fak. Mecm., B, 41, 1-4, 57-82, Istanbul.

  • Yalçm, N., 1980, Karasu-Hatay Grabeni kuzey kesiminin jeolojisi ve hidrokarbon olanaklarının araştırılması: Türkiye Beşinci Petrol Kong., 31-40, Ankara.

  • Geochemistry and Genetic Interpretation of Alkaline Rocks in the Bayındır-Akpınar (Kaman) Area
    Hasan Bayhan
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    Abstract: In the present study, the genetic interpretation of the alkaline rocks around BayındırAkpınar (Kaman) region within the Kırşehir Massif, are tried to be explained by determining their pet*rographical and geochemical properties. The alkaline rocks in the study area show a succession as syenitoids and volcanits. Syenitoids have quartz syenite and feldspathoidal syenite composition. Feldspathoidal syenites (miaskite, sodalite syenite and foyaite) are of miaskiftie character in terms of their minera*logic and chemical properties Volcanits are of phonolite and tephritic phonolite types.Basing on their petrographical and geochemical properties, the rock associations in concern are formed from different magmas derived from different source meterials, but not from the fractional crystallization of a single magma. 

  • Feldspathoid

  • volcanic

  • geochemical

  • petrographic

  • Armbrustmaeher, T.J., ve Hedge, C.E., 1982, Genetic implication of minor-element and Sr-isotope geochemistry of alkaline rock complexes in the Wet Mountains, Area, Fremont and Custer Cauntieş, Colqradp: Contr. Min. Petr., 79, :` ` 424435

  • Ataman, G., 1972, Ankara`nın güneydoğusundaki granitik-granodiyoritik kütlelerden Cefalik Dağın radyometrik yaşı hakkırilia ön çalışma: Hacettepe Fen ve Müh. Bil. Dergisi, 2/1, 4449.

  • Ayan, M., 1963, Contribution e Tetude petrographique et geologique de la region situee an NordEst de Kaman, MTA yayını, 115, Ankara 332s,

  • Bailey, D.K., 1979, Origin of alkaline magmas as a result of anatexis: Melting in the deep crust. In: Sorensen, H. (Ed), the alkaline rocks, John Wiley and Sons, New York, 436442.

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  • Chappel, B.W., ve White, A.J.R., 1974, Two contrasting granite types Pasific Geology, 8, 173-174.

  • Erkan, Y., 1975, Orta Anadolu Masifinin güneybatı* smda (Kırşehir Bölgesinde) etkili rejyonal metamorfizmanın petrolojik incelenmesi: Hacettepe Üniv. Müh. Fak. Jeoloji Müh. Böl., Doçentlik Tezi, Ankara, 147s.

  • Erkan, Y., 1976a, Kırşehir Çevresindeki rejyonal me* tamorfik bölgede saptanan izogradlar ve bunların petrografik yorumlan: Yerbilimleri, 2/1, 23-54.

  • Erkan, Y., 1976b, Orta Anadolu Masif indeki karbonat lı kayaçlarda plajiyoklas bileşimi ile met^ morfizma arasındaki ilişkilerin incelenmesi: Yerbilimleri, 2/2, 107-111.

  • Erkan, Y., 1977, Orta Anadolu Masifinin güneybatısında Kırşehir bölgesinde etkili rejyonal me* tamorfizma ile amfibol minerallerinin bileşimi arasındaki ilişkiler: Yerbilimleri, 3/1, 41-46.

  • Harris, P.G., 1979, Origin of alkaline magmas as a result of anatexis: Anatexis and other proceses within the mantle. In: Sorenson, H. (Ed), the alkaline rocks, John Wiley and Sons, New York, 427436.

  • Ketin, I., 1963, 1/500 000 ölçekli Türkiye Jeoloji Hari tası, Kayseri Paftası: MTA Yayınlan, Ankara, 83s.

  • Kogarko, L.N., 1979, Role of volatiles, in: Sorenson, H. (Ed), the alkaline rocks, John Wiley, New York, 474-487.

  • Kogarko, L.N., Ryabchikov, ID., ve Sorenson, H., 1979, Liquid fractionation. In: Sorenson, EL (Ed), the alkaline rocks, John Wiley and Sons, New York, 488-500.

  • Oktay, F., 1981, Savcıhbüyükoba (Kaman) çevresinde Orta Anadolu Masifi tortul örtüsünün jeolo. jisi ve sedimantolojisi: İTÜ, Maden Fak., Doçentlik Tezi, İstanbul 175s.

  • Seymenr rKamân (Kırşehir) dolayında Kırşehir Masifinin metamorfizması: Türkiye Jeol. Kur. .35. Bilimsel ve Teknik Kurultayı; İç Anadolu`nun Jeolojisi Simpözyuttıu, An. kara, 1245.

  • Seymen, 1., 1981b, Kaman (Kırşehir) dolayında Kırşehir Masifinin Stratigrafisi ve metamorfizm ması: Türkiye Jeol. Kur, Bul*., 24/2, 744.

  • Seymen, I`., 1983,^maHâğ (Kaman-Kırşehir) çevresinde Kaman Grubunun ve onunla sınırdaş - oluşukların- karşılaştırmalı tektonik Özellik leri: Türkiye Jeo. Kıut^BüK;, 26/2, 89-98.

  • Seymen, 1., 1984, Kırşehir Masifi metamorfitlerinin - Jeolojik evrimi: ^Türkiye Jeol. Kur., Ketin Simpozyumu, Ankam, 133-148.

  • Shaw, D.M., 1968, A review of K-Rb fractionation trends by covariance analysis: Geochim. Cosmochim. Acta, 32, 573-601.

  • Sorenson, H., 1979, Origin of alkaline rocks. A Summary and retrospect. In: Sorenson, H. (Ed), the alkaline rocks, John Wiley and Sons, New York, 535-539.

  • Streckeisen, A., ve Le Maitre, R.W., 1979, A chemical approximation to to the modal QAPF classi* fication of the igneous rocks: NJb. Miner. Abh., 136, 169-206.

  • White, A.J.R., ve Chappell, B.W., 1977, Ultrametamorp-` hism and granitoid genesis: Tectonophysics, 43, 7-22.

  • Yaman, S., 1984, Bayındır (Kaman) florit filonlarmm termooptik analizi: Yerbilimleri, 11, 23-30.

  • Yaman, S., 1985, Bayındır (Kaman) florit filonlarında nadir toprak elementlerin jeokimyası: Jeo. Müh. Dergisi, 25, 3944.

  • Permian and Carboniferous of Demirözü and Their Significance in the Regional Structure
    Necati Akdeniz
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    Abstract: The «Permo carboniferrious of Demirözü» crops out north of Demirözü, about 35 kilometers west of Bayburt (Gümüşhane The .succession, Upper Gartroniferous-Lower Permian in age, is prominent for its coal lenses. The;"areap,"where this unit is exposed, is Characterised by E-W trending nu*merous thrust sheets dipping söûtn & The Carboniferous and the Permian are well exposed in two thrustsheets located south of «Bayîburt-Plain», fhe Carboniferous consists of. conglomerate, sandstone, orthoquartzite, carbonaceous shale and limestone arid ite base is not exposed in the northern slice. It is ona rnetomorphic basement. and grades iritö Permian consisting of conglomerate, sandstone, quartzite,siltstone and limestone. The Palaeozic is covered by the.overlapping Liassic consisting of conglomerate, sandtone, sandy &mestone and dolomitic limestone. J)pgger and Malm are represented by micrite with local chert intercalations. These grade in Lower Cretaceous units consisting of intercalated sandstones and calcarenitesthat are tectonically overlain by a` völcanö-şedinıentary sequence of Liassic-Upper Jurassic (?) age. Inthe third slice, the volcano-sedimentary" secjuence is unconformably underlain by metamorphic rocks.This volcano-sedimentary sequeabo  at the base, of conglomerates and plant bearing sandsto*nes. It grades in Upper .Jurassic cower Cretaceous limestones in the uppermost section.The metamorphic rocks and 4he overlying Per mo-Carboniferous are allochthonous in the investigated area. The thrust sheets comprising" slices of Upper Cretaceous sediments and ophiolites are presetved in front of north moving thrust sheets that are mutually covered by Eocene, suggesting the move*ments to. have occurred in the Upper* Çfeiade.ous-Eocene interval.

  • tectonic

  • Permian

  • sandstone

  • Gümüşhane

  • metamorphic roks

  • Ağar, Ü., 1977, Demirözü (Bayburt) ve Köse (Kelkit) bölgesinin jeolojisi : Doktora Tezi, IÜFF, Mayıs 1975; KTÜ Matbaası, 1977, 59 s., Trabzon.

  • Ktein, I., 1951, Über die Geologie der Gegend von Bayburt, In Nordest Anatolien: Rev. Fac, Sci. Univ. İstanbul, B, 16, 113-127.

  • Korkmaz, S. ve Baki, Z., 1984, Demirözü (Bayburt) güneyinin stratigrafisi : TMMOB Jeoloji Mü hendisleri Odası 10. Yıl Kurultay Bildirisi.

  • Şengör, A.M.C., Yılmaz, Y. ve Ketin, 1., 1980, Remnants of a prelate Jurassic ocean in northern Tur* key : fragments of Permian-Triassic Paleo Tethys: Geol. Soc. Amer. Bull., 91 (part IX 499-609.

  • Şengör, A.M.C., ve Yılmaz, t, 1983, Türkiye`de Tetis`in evrimi : Levlıa tektoniği açısından bir yaklaşım : TJK Yer Bilimleri Özel Dizisi, 1, 75 s

  • Tokel, S., 1981, Plaka tektoniğinde magmatifc yerleşimler ve jeo-kimya : Türkiye`den örnekler: Yer Yuvarı ve İnsan, 6, 34, 53-65.

  • Cyclic Deposition and Lithofacies Changes in the Braided Stream Deposits of Paleocene in Northern Ankara Region
    Nizamettin Kazanci Yaşar Ergün Gökten
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    Abstract: Meandering and braided stream deposits of the Paleocene, which are widespreaded towardsthe west, are exposed in northern Ankara region particularly a tthe vicinities of Lezgi, Orhaniye andKınık villages. The braided stream deposits, approximately 250m, which occur at the bottom of Paleocene continental units, are made of many individual channel-fills and gravelly channel bars superimposedeach other. Lithofacies analyses dependyon Miall (1977)`s definitions showed that the braided streamsediments had been accumulated under tectonic control as both transition and allocyclic sequences,From the base to top, the allocyclicity order is; Donjek type sequences -* Platte type sequences —»Donjek type and Scott type sequences. That cyclicity represents that intensive epirogenic/tectonic movements effected in Ankara region during the Plaleocene time.

  • stream

  • epirogenic

  • Ankara

  • Paleocene

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  • A Possible Ancient Carbonate-Storm Deposite in Carboniferous Succesion of Naltaş (Saimbeyli, MW-Adana/Turkey)
    Baki Erdoğan Varol Yavuz Oran
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    Abstract: The alternating deposition of resedimented muds tone, bioclastic packgrainstone and fi*nely grain quarz sandstone have been formed as cyclic sediments during storm stages in the Carboniferous succession of Naltaş area. High energy conditions effective during the storm gave rise to laterallmovement of the carbonate sediments and erosion of sea bottom from opening shore to nearshor. Innerstructure of the storm deposite, «Tenıpestite» that may be misinterpreted as türbidite beds, shows fi*ning upward sequence, of which lower and middle part have been characterized by coarse grain skele^tal pack-wackestone with essentially paralel oriantation of the biogenic contituents, whereas the upperpart composed of paralel or cross-laminated silt-mud stone. The last produce, mudstone include rich orga*nic material would be originated from plant, possible source sea grass eroded from sea floor. The stormdeposites were covered with thick carbonate mud as autochtonous sedimentation during post-stormperiods. 

  • mudstone

  • Naltaş

  • carbonate

  • erosion bottom

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