Plankton biostratigraphy and magnetostratigraphy of the Santonian-Campanian boundary interval in the Mudurnu-Goynuk Basin, northwestern Turkey

Wolfgring, Erik
Wagreich, Michael
Dinares-Turell, Jaume
Yılmaz, İsmail Ömer
Bohm, Katharina
The Santonian-Campanian boundary interval close to the village of Goynuk in northwestern Turkey (Bolu province) was recorded and examined with respect to nannofossil and foraminiferal biostratigraphy, magnetic polarity and magnetic susceptibility. During the Late Cretaceous, the Mudurnu-Goynuk Basin was located on the Sakarya continent situated in the northwestern Tethyan Realm, north of the Neo-Tethys.


Planktonic foraminiferal biostratigraphy and microfacies analysis of the cenomanian-campanian succession in the Haymana-Polatlı Basin (Ankara, Turkey)
Sarıaslan, Nisan; Altıner, Sevinç; Department of Geological Engineering (2017)
In order to establish the planktonic foraminiferal biostratigraphy of the Cenomanian- Campanian deposits in the Haymana-Polatlı Basin, a stratigraphic section of 93.5 meters was measured and 75 samples were collected. The stratigraphic section starts with limestones containing late Cenomanian rotaliporid and dicarinellid species and continues with early-middle Turonian aged clayey limestones with sporadic shale beds. These units are overlain by red colored Santonian limestones and shales containing abundant...
Upper Cretaceous planktonic foraminiferal biostratigraphy from NW Turkey calibration of the stratigraphic ranges of larger benthonic foraminifera
Altıner, Sevinç (1999-01-01)
Planktonic and larger benthonic foraminifers of the Upper Cretaceous (Santonian-Maastrichtian)-Lower Tertiary (Danian) rock units from north, northwest and central Anatolian fore-are basins have been investigated in order to improve the biostratigraphic resolution of this time interval. Total abundance and diversity of planktonic foraminifers vary from rare (the sequence from the Haymana region) to high (the sequences from the Cide, Caycuma, Hanonu and Yenikonak regions) and preservation is poor to moderate...
Late Cretaceous-Eocene Geological Evolution of the Pontides Based on New Stratigraphic and Palaeontologic Data Between the Black Sea Coast and Bursa (NW Turkey)
Ozcan, Zahide; Okay, Aral; Özcan, Ercan; Hakyemez, Aynur; Altıner, Sevinç (2012-01-01)
The Late Cretaceous-Eocene geological evolution of northwest Turkey between the Black Sea and Bursa was studied through detailed biostratigraphic characterization of eleven stratigraphic sections. The Upper Cretaceous sequence in the region starts with a major marine transgression and lies unconformably on a basement of Palaeozoic and Triassic rocks in the north (Istanbul-type basement) and on metamorphic rocks and Jurassic sedimentary rocks in the south (Sakarya-type basement). Four megasequences have been...
Esmeray-Senlet, Selen; Altıner, Sevinç; Altıner, Demir; Miller, Kenneth G. (2015-05-01)
The Cretaceous-Paleogene (K/Pg) boundary in the Haymana Basin, Central Anatolia, Turkey, was delineated using planktonic foraminiferal biostratigraphy, microfacies analysis, and sequence stratigraphy. An similar to 29 m outcrop consisting of limestone and marl was measured, and four planktonic foraminiferal biozones were identified spanning the boundary. Planktonic foraminiferal extinction across the K/Pg boundary was catastrophic and abrupt. The extinction level is overlain by a unit (Zone P0) showing an i...
A Santonian Campanian boundary locality from North western Turkey
Wolfgring, Eric; Wagreich, Michael; Dinares Turell, Jaume; Yılmaz, İsmail Ömer; Boehm, Katharina (null; 2015-04-17)
A Santonian-Campanian boundary section, close to the village of Göynük in Northwestern Turkey (Bolu province), was recorded and examined in respect to nannofossil and foraminiferal biostratigraphy, magnetic susceptibility, as well as magnetic polarity. During the Late Cretaceous, the Mudurnu-Göynük basin was located in the northern Tethyan Ocean, on the Sakarya continent (between the Intra-Pontide Ocean and northern branch of the Tethys). The section yields reddish hemipelagic to pelagic deposits. The strat...
Citation Formats
E. Wolfgring, M. Wagreich, J. Dinares-Turell, İ. Ö. Yılmaz, and K. Bohm, “Plankton biostratigraphy and magnetostratigraphy of the Santonian-Campanian boundary interval in the Mudurnu-Goynuk Basin, northwestern Turkey,” CRETACEOUS RESEARCH, pp. 296–311, 2018, Accessed: 00, 2020. [Online]. Available: