Türkiye Jeoloji Bülteni

Abstract: In folgenden Zeilen werden die magmatischen Erscheinungen in derTürkei hauptsächlich nach dem Ort und dem Wesen der Tätigkeit behandelt, wobei noch die chemisch-mineralogische Zusammensetzung und diechronologische Entwicklung verschiedener magmatischer Körper in Betracht gezogen werden. Die magmatische Aktivität wurde damit in dreiGruppen wie Plutonismus, Submarinvulkanismus und Oberflächenvulkanismus eingeteilt, und jede von diesen nach ihrer Zusammensetzung undzeitlicher Folge einzeln beschrieben. Als Beispiele werden nur solche Einheiten vorgenommen, deren Intrusionszeit wohl definiert ist.

Abstract: In the geologic literature ,and on the published maps of Turkey theterm flysch is frequently applied to a great variety of deposits of Cretaceous ,and Tertiary age. Since most of the geologic work has been carried out by European-trained geologists, this is not surprising,It is, however, somewhat baffling to the American geologists ,and acertain reluctance on their part to use the term can be observed. Thishas also its good reasons, as will be pointed out later.There is no doubt that the usage of the term flysch has been confusing in the past and its application abused, which has led many earneststudents of the problem to advocate complete abandoning of the term.However, not only are we still facing its application in the publications of all areas with alpine-type geology, we also feel that the termflysch has a definite value in those areas, if properly defined ,and understood.The purpose of this talk, therefore, is to take a critical look at thedefinition ,and usage of the term flysch ,and to cite a few examples of itsusefulness,Since the term molasse is usually connected with the term flysch ,and since there seems to exist some confusion in the differentation ofthe two, the following discussion is pertaining to both terms. 

Abstract: This article deals only with «the orogenic phases of the Ankara Region». The author tried to compile all available geological data relatedto the same subject from various sources and to give a brief summary ofdifferent observations together with the author`s personal views. Manyof these observations have not been published, but some of them werepartly discussed at the yearly meeting of the Turkish Geological Society,in February 1959, in order to contribute some information to Prof. Dr.İ. KETİN, who later published a paper on «the orogenic evolution ofTurkey» (İ. KETİN, 1959).

Abstract: This study was made to supply irrigation water tothe Himmetdede area. For this purpose, the stratigraphical, lithological,structural position and underground water possibilities were investigated, and then some bore-holes were recommended. 

Abstract: In the Carboniferous ,and Permian rocks from Turkey, which wehave been studying for some time, we have quite often observed somemicroproblematic foraminifera about which, so far as we know, no papers have been published. Although some of these forms phylogenetically can be assigned to some family ,and genera, we feel that not enoughinvestigation ,and study has been made to give them a more definite systematic position ,and therefore, for the time being, we prefer to acceptthem as Microprohlematica.Among those in samples from lower ,and particularly middle Permian rocks, two forms, one being comparative with the Vermiporella ,and the other with a microforaminifera / a primitive Algae, are quiteoften observed.Until recently, excepting a few old publlcations, there were no papers available concerning these forms. Lately however, we have beenable to make more certain identification of the large collection of fossilAlgae in our possession, benefiting from a series of publications put outduring the recent years by G. F. Elliott of the Iraq Petroleum Company. Today`s talk is going to be about these Algae which are offten observed in the samples from Permian rocks in Turkey

Abstract: The material described in this paper was collected from the Carboniferous borings carried out by the M. T. A. Institute in the Amasra CoalBasin. As a result of these palynological investigations (in WestplialianD-C) one new pollen genus and four species with one new specimen ofmegaspore were discovered:

1 - Biharisporites perfectus n. sp.

2 - Foveolatipollenites ergönüli n. sp.

3 - Zonalosporites labiatus n. sp.

4 - İbrahimipollenites macroreticulatus n. sp.

5 - Crassiletipollenites heteroornatus n. gen., n. sp.

They are individually and stratigraphically described below.  

Abstract: In this paper is investigated the content of the plant micro fossils (sporeand pollen grains) in the Upper Carboniferous coals in consequence ofthese palynological studies two new genera and six species were found, thatare described and stratıgraphıcally evaluated here.The coal samples for this study were collected from the borings carriedout by the M.T.A. Institute in the Amasra Carboniferous Basin and a fewcoal samples were obtained from the Beycuma-Kabalaklar Carboniferousoutcrops, that were dragged by tectonical forces and locally imbricated overthe upper Cretaceous strata.

Abstract: The area in question is situated within the limits of the Province ofKocaeli (İzmit), between the railway stations of Tuzla and Gebze (theWorks site actually lying along the shores of the Gulf of İzmit, at theeastern extremity of the Marmara Basin). This site comprises some ofthe grounds originally owned by the Florists Institute of the Ministry ofAgriculture, as well as some state property to the east of the said Institute, and amounts to some 5 km2.The site is delimited to the north: by the İstanbul-İzmit Highwayand by Ismail`s stable; to the east: by the Kanço Tepe Hill and the ridgeforming its prolongation; to the south: by the Marmara Sea and the Etibank Transformer Station; to the west: partly by the Marmara Sea andpartly by the Federal Trucks Company grounds.The Haydarpaşa-İzmit railway running almost parallel with the İstanbul-İzmit newly constructed highway pass through the site groundsand thus constitute excellent means of transportation for the works tobe. The site can thus be easily reached both by land through the aforesaid ways as well as by motor-boat by sea.