Geology, mineralogy and origin of clay minerals of the Pliocene fluvial-lacustrine deposits in the Cappadocian volcanic province, central Anatolia, Turkey

2006 ◽  
Vol 54 (5) ◽  
pp. 555-570 ◽  
Author(s):  
Ali Gürel ◽  
Selahattin Kadir
Sedimentology ◽  
2020 ◽  
Vol 67 (5) ◽  
pp. 2282-2309
Author(s):  
João Paulo B. Gomes ◽  
Rodrigo B. Bunevich ◽  
Sandra N. Tonietto ◽  
Daisy B. Alves ◽  
Julice F. Santos ◽  
...  

Clay Minerals ◽  
2017 ◽  
Vol 52 (3) ◽  
pp. 351-363
Author(s):  
Ş. Ali Sayin ◽  
Nurdan Yavuz ◽  
Serap Içöz

AbstractThe Çankırı Basin is one of the largest Cenozoic basins in Central Anatolia, Turkey and contains possible economic hydrocarbon and evaporite reserves. Gypsum is the dominant mineral in the evaporite-bearing Pliocene deposits of the Çankırı Basin. In claystones, the abundance of smectite, dolomite, illite/mica and chlorite in association with minor amounts of mixed-layer chlorite-smectite, mica-vermiculite, amphibole, serpentine, quartz and feldspar together indicate an alkaline environment. Minor kaolinite is also present in some clay samples. Smectite is both detrital and authigenic. Palynological analysis revealed the existence of a mixed forest (Pinus, Cathaya, Tsuga, Cedrus, Abies, Quercus, Ulmus, Juglans, Pterocarya, Acer, Carya, Carpinus, Fagus) dominated by Pinus with a widespread herbaceous understory (Poaceae) interspersed sparsely with open areas occupied by Asteraceae. This flora reflects warm-temperate and humid climatic condition. δ13C analyses have shown that the vegetation was dominated by C3 plants.


2014 ◽  
Vol 280 ◽  
pp. 14-29 ◽  
Author(s):  
Elif Varol ◽  
Abidin Temel ◽  
Tekin Yürür ◽  
Alain Gourgaud ◽  
Hervé Bellon

2019 ◽  
Vol 75 (2) ◽  
pp. 268-280 ◽  
Author(s):  
Ünal Akkemik ◽  
Nevriye Neslihan Acarca Bayam

Taxodioxylon Hartig, (emended by Gothan 1905) was widely described from the late Oligocene of the European part of Turkey (Thrace) and the early Miocene of greater Turkey, Anatolia.,C,. was also described from the early Miocene of central Anatolia. The purpose of this paper is to present a more detailed extended history of these two genera up to the late Miocene (Tortonian) with new descriptions from the Galatean Volcanic Province in central Turkey. The wood identification showed the presence of two fossil species;,D,et B,and,(G,.) G,. In conclusion, the swamp and lowland warm-temperate forest composition including,and,in the Galatean Volcanic Province, continued from the early Miocene (Burdigalian) to the late Miocene (Tortonian).


IAWA Journal ◽  
2017 ◽  
Vol 38 (4) ◽  
pp. 561-570 ◽  
Author(s):  
Ünal Akkemik ◽  
Nevriye Neslihan Acarca ◽  
Murat Hatipoglu

ABSTRACTSilicified wood preserved in the Güdül fossil forest site in the Galatian Volcanic Province (GVP) near Ankara in Central Anatolia is described. The material comprises six petrified wood samples that date from early to middle Miocene. The woods have very low rays (2–5 cells high), bordered tracheidal pitting (9–10 μm), pinoid cross-field pits and very thin, unpitted, smooth walls of axial parenchyma and rays. This combination of characters indicates affinity to the fossil-genus Glyptostroboxylon. The presence of this wood genus suggests that the local environment was either riparian or wetland forest.


1987 ◽  
Vol 24 (2) ◽  
pp. 279-290 ◽  
Author(s):  
John P. Szabo

During the Wisconsinan Stage, ice of the Cuyahoga Lobe flowed southward from the Erie Basin through a lowland created by an ancestral Cuyahoga River. The paleovalley of the Cuyahoga River is filled with the pre-Woodfordian tills and lacustrine deposits. The oldest till, the Mogadore Till, overlies proglacial lacustrine deposits. After retreat of Mogadore ice into the Erie Basin, ice readvanced to deposit a previously unnamed till, Northampton Till, over deltaic and lacustrine deposits of Lake Cuyahoga. Northampton ice melted back into the Erie Basin after depositing the core of the Summit County morainic complex. Northampton ice then readvanced over deposits of proglacial Lake Independence and formed the Defiance Moraine. Aside from minor leaching of carbonates and weathering of clay minerals, little evidence of the Farmdalian Substage exists. Woodfordian, Kent, Lavery, and Hiram tills were deposited over pre-Woodfordian deposits.The multiple nature of the pre-Woodfordian tills in the Cuyahoga Lobe is similar to that of the Titusville Till in Pennsylvania and northeastern Ohio. Northampton Till is distinctive in having a significantly different matrix texture and carbonate content from either the Mogadore or the Kent Till. Organic debris suitable for dating from pre-Woodfordian deposits is rare because of glacial erosion and drainage changes. Lack of radiocarbon dates continues to complicate the interpretation of the Pre-Woodfordian stratigraphy.Durant l'épisode wisconsinien, la glace du lobe de Cuyahoga s'écoulait vers le sud à partir du bassin Érié en traversant une plaine créée par l'ancien lit de la rivière Cuyahoga. La paléovallée de la rivière Cuyahoga est comblée de tills et de dépôts lacustres. Le till le plus ancien, Mogadore, recouvre les dépôts lacustres proglaciaires. La régression du glacier de Mogadore fut suivie d'une progression qui édifia un till, jadis sans nom, mais ultérieurement appelé le till Northampton, lequel recouvre les dépôts deltaïques et lacustres du lac Cuyahoga. Le front du glacier de Northampton recula dans le bassin Érié après y avoir déposé la partie centrale du complexe morainique de Summit County. Ensuite, le glacier de Northampton réavança et recouvrit les dépôts du lac proglaciaire Independence et y déposa la moraine Defiance. À part un lessivage mineur des carbonates et une légère altération des minéraux argileux, il y a peu d'indice de l'exitence du sous-épisode farmdalien. Les tills du Woodfordien, Kent, Lavery et Hiram furent ont été mis en place par-dessus les dépôts pré-woodfordiens.


Sign in / Sign up

Export Citation Format

Share Document