Türkiye Jeoloji Bülteni

Abstract: The gravity anomaly in the Amik Plain, Hatay, Turkey, is similar tothose in the Rift Valleys of Africa. The tectonic situation around the AmikPlain is also similar to those around the Rift Valleys. Thus, it is very likelythat the Amik Plain is the continuation of the Rift Valleys. A theory suggested by G. F. S. HILLS to explain the development of the rift valleys ismodified and applied to this area, and the possible structure under thesedimentary cover is given. 

Abstract: L`Institut des Recherches Minières (M. T. A.) m΄avait chargé durantl΄été 1947 de faire des levés géologiques pour la carte au 1:100.000 ème dansla région de Hakkâri, en collaboration du géologue Hayri Uysal ). Nous yavons travaillé pendant trois mois et levé presque 3500 km2 de terrainsrépartis sur deux feuilles topographiques, ce qui a exigé vu le relief et lesdifficultés de vivre un effort considérable de notre part.En 1937 la région a été l`objet d΄étude de J. H. MAXSON qui y restaqu`un temps très court, soit du 6 au 12 Juillet de cette année. Ce géologuedécouragé par les difficultés des conditions locales ainsi que par la mort dedeux mulets faisant partie de sa caravane d`éxpédition n`a pu que suivreun itinéraire allant de Çal à Gevar, passant par les vallées du Han deresi, etdu Oramar deresi. Il conclue dans son rapport en faisant une comparaisonavec la région de Mardin.

Abstract: In the framework of the Carboniferous investigationscarried out by the M.T.A.E. in the Zonguldak coal basin since 1946,some reports ,and publications were issued, dealing vith Carboniferous ,and with the Cretaceous cover thereof. A summary of these observations is contained in this article, in which special attention is paid to theexpected depth of the Carboniferous which is expressed in a contourmap, which shows the influence of the tectonics since the beginning ofthe Cretaceous sedimentation in the surface of the Carboniferous. Thetectonical structure of the Carboniferous is broadly outlined in the text.

Abstract: The geological history of Egypt is a very complex but most fascinatingstory which starts at least 1000 million years ago in the Pre-Cambrian. Inorder to give the complete history it would be necessary to discuss both themacro-stratigraphical ,and the micro-paleontological conditions in Egypt.However, in view of the limited time available, I shall have to restrict myselfto the macrostratigraphy only ,and in particular to the lithological aspectsof Egyptian stratigraphy.

Abstract: Unter den hauptsaechlich der Karbon-und Kreideformation angehörenden Sedimenten des Beckens von Zonguldak (s. Fig.l) spielen diePsammite eine wichtige Rolle. Öfters finden sich mit diesen auch Psephitevor. Beide Gesteinserten enthalten sozusagen keine Fossilien, sodass dieBestimmung der Schichten nur lithologisch möglich ist. Da bis jetzt eineausführliche mikroskopiche Untersuchung dieser Gesteine fehlte, unternahmen wir eine derartige Untersuchung mit Zuziehung anderer Gesteinsarten dieses Gebietes. Die dabei erzielten Hauptergebnisse werden untenzusammengefasst. Die Ergebnisse einer systematischen Untersuchung derin diesen Psammiten vorkommenden Schwermineralien werden spaeterveröffentlicht.

Abstract: Les opinions sur l΄origine de la <> se trouvant àl΄ Ouest et au Nort d΄Istanbul, diffèrent suivant les auteurs. D`après W.PENCK (1), la Série de Thrace est une formation continentale d`âge Dévonien inférieur-Dévonien supérieur et ne contient que des traces de tiges deplantes. W. PAECKELMANN (2) qui a fait des études détaillées dans cetterégione certain autres géologues la considèrent comme une formation d`âgeDévonien supérieur et même en partie Dévonien moyen En outre, d`aprèsPAECKELMANN, l΄origine de cette série est marine.

Abstract: The detailed results of my investigations on the Upper Devonian Corals, Stromatoporoids and Bryozoa from South Anatolia are to be publishedlater. The object of the present paper is to deal with mainly new speeles tomake them available. The specimens described ,and figured are preserved inthe Museum of the M.T.A. Institute, Ankara.

Abstract: A rich collection of fossils consisting of the remains of mammals, wasfound, by Dr. G. OTKUN in 1942 in verry hard red clay beds between Akgedik ,and Bayır villages in North-Western part of the Vilayet of Muğla, inWestern Anatolia.The collection of 1942 represents only a half of the material from thislocality. One half, at least, of the fossiliferous deposits of NW Muğla are stilluntouched ,and will be excavated in the coming years.The collection submitted to my examination contains skulls, upper ,andlower jaws with teeth, some fragment of the larger limb-bones, small bonesof the feet ,and a few horns. The fossil remains are generally well-preserved,although partly broken eiher in anterior / posterior prts. They represent atleast the following three orders.

Abstract: Les formations néogènes des environs de Kayseri ont été observéespar de nombreux auteurs qui ont voyagé dans cette région. Parmi eux E.CHAPUT (1), F BARTSH (2) et F. BAYKAL (3) surtout, les ont fait connaitre; d’après leurs observations le terrain Néogène est formé de laves etde tufs volcaniques, de calcaires et de marnes lacustres, de conglomérats etde sables.

Abstract: Az tanınmış bir bilim olan Jeolojinin öğrencisi jeolog daha da az tanınmış bir meslek adamıdır. Aşağıdaki satırlar esas faaliyetinin ne olduğunu, mesaisini nasıl ve niçin yaptığını, mesleğin nasıl bir istikbali olduğunu, herkese, açıklamak için yazılmıştır. Jeolog arzın teşekkülünü, yapısını, tarihçesini, hayat eserlerini ve faydalı malzemelerini inceler. Jeoloji bilimi oldukça yenidir; ancak 18inci yüzyılın sonuna doğrudur ki özgür bir bilim olabilmiştir ve henüz inkişafının başlangıcındadır. Tasvir safhasını aşmış ise de kemmî bir bilim olarak hiç işlenmemiş gibidir. Yeryüzünde daha varlıklarından bile şüphe edilmeyen meselâ petrol hazneleri vardır ki yüzey ve yapı jeologlarının mesailerini beklemektedirler. Daha jeolojisi yapılmamış, kömürlü tabakaları ölçülmemiş araziler vardır. Madenlerin yalnız kolay keşfedilebilenleri bulunmuştur. Daha uzun seneler için iş bulmakta üzüntü çekmeyecek bir meslek adamı jeologtur. Böyle bir mazhariyet daha ziyade jeolojinin olduğu kadar yardımcı bilimlerin de malûmlarını öğrenecek, kendi bilim sınırlarını hep genişletecek, muhayyelenin de payı bulunduğu müşahedeye müstenid nuhakemeler yapacak, laboratuvarda olduğu kadar topluluklardan uzakta ve tabiyatla basbaşa yapılmasını bilecek kimseler içindir.

Abstract: Türkiye`nin 1949 yılı jeoloji biblografyası.