ANKARA CİVARINDA BULUNAN BİRKAÇ PERMİEN KALKER ALGIN ETÜDÜ

1953 yılı yazında Ankara bölgesi Hasanoğlan civarı jeolojik çalışmalarımız neticesi (U. Bilgütay, M.T.A. Rapor No. 2617, 1957) belirtilmiş olup, paleontolojik etüdlerimiz bilhassa Hasanoğlan-Karacadere Permien kalkerleri üzerine teksif edilmiştir. Bu kalkerler içerisinde gayet bol Fusulinidae cinsleri ile kalker alg fosilleri tesbit etmiştik. Etüd sahamız dahilinde fosilli Permien yalnız Hasanoğlan köyünün kuzeydoğusuna isabet eden Karacadere mevkiinde görülmektedir. Fakat Fusulinidae'li kalkerler NNE da İdris dağı eteklerinde ve SSW da Odabaşı köyü Beypınarı mevkiinde de tarafımızdan görülmüştür (Şekil 1). Bu yazımızda Karacadere Fusulinidae'li kalkerlerinin ihtiva ettiği esmer alg (Rhodophyceae) lerden bir cins ile, yeşil alg (Cfılorophyceae) lerden iki, ve mavi alg (Cyanophyceae) lerden bir cinsten ibaret olan kalker alg fosillerinden bahsedilecektir. Alglerle beraber bulunan Foraminiferaların kısmı âzamisini aşağıda görüleceği gibi büyük Fusulinidae'li teşkil etmektedir. Bu Foraminiferaların etüdü S. Erk tarafından yapılmış olup, Üst Karbonifer-Permien olarak yaşlandırılmıştır.

Anahtar Kelimeler:

ANKARA CİVARI, BİRKAÇ PERMİEN KALKER, ALGIN ETÜDÜ

SOME PERMIAN CALCAREOUS ALGAE FROM THE VICINITY OF ANKARA

During the summer of 1953 a geological field study was made in the Ankara region in the vicinity of Hasanoğlan village (U. Bilgütay, M.T.A. Report No. 2617, 1957). The author has particularly concentrated her paleontological study on the Permian limestones of the HasanoğlanKaracadere area where she was able to identify in these limestones some rather abundant Fusulinidae species as well as calcareous algal fossils. In the area studied fossiliferous Permian formations were observed only in Karacadere locality NE of Hasanoğlan village. However, limestones containing Fusulinidae were seen by the author to the NNE on the slopes of the İdris Dağı and to the SSW near Odabaşı village in the locality named Beypınarı (Fig. 1). This paper describes the calcareous algal fossils consisting of one species of brown algae (Rhodophyceae), two of green algae (Chlorophyceae) and one species of blue algae (Cyanophyceae), all collected from the Karacadere locality in the Fusulinidae - bearing limestones. As will be seen below, the majority of the Foraminifera found together with the algae are represented by large Fusulinidae. These Foraminifera were studied by S. Erk, who attributed them -to the Upper Carboniferous-Permian age.

Keywords:

SOME PERMIAN CALCAREOUS, ALGAE FROM, THE VICINITY OF ANKARA,

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ELLIOTT, F. G. (1956) : Further record of fossil calcareous algae from the Middle East. Micropaleontology, vol. 2, No. 4, pp. 327-334, pl. 1-2. GARWOOD, E. J. (1912) : The Lower Carboniferous succession in the North-West of England. Quart. Journ. Geol. Soc. London, vol. 68, p. 449, London.
(1913) : On the important part played by calcareous algae at certain geological horizons, with special reference to the Paleozoic rocks. Geol. Mag., dec. V, vol X, pp. 440-446, 490-498, 545 553, London. —(1931) : The Tuedian beds of Northern Cumberland and Roxburghshire East of the Liddel Water (Palaeontological Notes; Algae) Quart Journ. Geol. Soc. London, vol. 87. pp. 97-159 (138-140) pl. XIII-XIV, London.
(1931) : Important additions to our knowledge of the fossil calcareous algae since 1913, with special reference to the Precambrian and Palaeozoic rocks. Quart. Journ. Geol. Soc. London, vol. 87, pp. LXXIV-CVIII, London. and GOODYEAR, E. (1924) : The Lower Carboniferous succession in the Settle District and along the line of the Craven faults. Quart. Journ. Geol. Soc. London, vol. 80, pp. 184-273, London.
JOHNSON, J. H. (1945) : Calcareous algae of the upper Leadville limestone near Glenwnod springs, Colorado. Bull. Geol. Soc. America, vol. 56, pp. 829-847, pl. 1-5. (1946) : Lime secreting algae from the Pennsylvanian and Permian of Kansas. Bull. Geol. Soc. America, vol. 57, pp. 1087-1120, pls. 1-10.
(1952) : Ordovician rock-building algae. Quart. Colo. School of Mines, vol. 47, No. 2, pp. 29-56, pls. 1-3.
(1957) : Maclurites and Girvanella in the Gordon river limestone (Ordovician) of Tasmania. Journ. Pal., vol. 31, No. 3, pp. 632-640, pl. 73 74.
KONISHI, K. (1956) : Anatolipora, a new Dasycladacean genus, and its algal associates from the Lower Carboniferous of Japan. Quart. Colo. School of Mines, vol. 51, No. 4, pp. 109-127.
LEBSACK, W. (1952) : Organic limestones of the Middle and Lower Pennsylvanian of Kansas. Quart. Colo. School of Mines, vol. 47, No. 2, pp. 57-94.
LE MAITRE, (1930) : Observations sur les Algues et les Foraminiferes des calcaires devoniens Ann. Soc. Geol. du Nord, vol. 55, pp. 42-50, pl. III, fig. 5. 12-15, Lille.
PIA, J. (1920) : Siphoneae verticillatae vom Karbon bis zur Kreide. Zool-Botan. Gesell. in Wien. Band XI, Heft 2.
(1932) : Algenkalkknollen aus dem Russischen Devon. Bull. Akad. Science de I'URSS., serie VII, No. 1, pp. 1345-1360.
(1933) : Die Girvanellen des Englischen Kohlenkalkes. Akad. Wissenschaften in Wien, Jahrgang 70, pp. 94-97.
(1927) : Die Wichtigsten Kalkalgen des Jungpalaozoikums und ihre geologische Bedeutung. C. R. 2e Congres Carbonifere Heerlen, 1935, pp. 765.856, pl. 85-97.
YABE, H. (1912) : Ueber einige gesteinbildende Kalkalgen von Japan und China. Science Reports Tohoku Imper. Univ. Sendai, Japan. II. series, vol. 1, No. 1, pp. 1-8.
and TOYAMA, S. (1928) : On some rock-forming algae from the younger Mesozoic of Japan. Science Reports Tohoku Imper. Univ. Sendai, Japan. II. series, vol. 12, pp. 141-152, pls. XVIII-XXIII.
WETHERED, E. (1890) : On the occurrence of the genus Girvanella in oolitic rocks, and remarks on oolitic structure. Quart. Journ. Geol. Soc. London, vol. 46, pp. 270-283.