The unaz formation: A key unit in the western black sea region, N Turkey

38Citations
Citations of this article
30Readers
Mendeley users who have this article in their library.

Abstract

The Pontide magmatic belt in the Western Pontides, which developed in response to the northward subduction of the northern branches of the Tethys Ocean, consists of two different volcanic successions separated by an Upper Santonian pelagic limestone unit, the Unaz Formation. The first period of volcanism and associated sedimentation started during the Middle Turonian and lasted until the Early Santonian under the control of an extensional tectonic regime, which created horst-graben topography along the southern Black Sea region. The lower volcanic succession, the Dereköy Formation, was deposited mainly within these grabens. This extensional period probably represents the rifting of magmatic arc, giving rise to the opening of the Western Black Sea back-intra-arc basin. The Unaz Formation commonly covers horsts and grabens developed before its deposition. This formation implies sudden subsidence of the region and termination of the volcanism during the Late Santonian. This period was interpreted as the time of the beginning of the oceanic spreading in the Western Black Sea Basin. The second period of magmatism developed on the Unaz Formation was more voluminous and was active during the Campanian. Stratigraphy, contact relationships and regional correlations indicate that the deposition of the Unaz Formation and similar deep marine red pelagic sediments in the Black Sea and Eastern Mediterranean region were probably controlled by local and regional tectonic events and sea level and/or climate changes.

References Powered by Scopus

Tethyan evolution of Turkey: A plate tectonic approach

2979Citations
N/AReaders
Get full text

Geological evolution of the tethys belt from the atlantic to the pamirs since the LIAS

1464Citations
N/AReaders
Get full text

Tethyan sutures of northern Turkey

1126Citations
N/AReaders
Get full text

Cited by Powered by Scopus

Tectonic evolution of the southern margin of Laurasia in the Black Sea region

176Citations
N/AReaders
Get full text

Early Cretaceous sedimentation and orogeny on the active margin of Eurasia: Southern Central Pontides, Turkey

168Citations
N/AReaders
Get full text

The Black Sea basins structure and history: New model based on new deep penetration regional seismic data. Part 2: Tectonic history and paleogeography

157Citations
N/AReaders
Get full text

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Cite

CITATION STYLE

APA

Tüysüz, O., Yilmaz, I. Ö., Švábenická, L., & Kirici, S. (2012). The unaz formation: A key unit in the western black sea region, N Turkey. Turkish Journal of Earth Sciences, 21(6), 1009–1028. https://doi.org/10.3906/yer-1006-30

Readers over time

‘12‘13‘14‘15‘16‘17‘18‘19‘20‘21‘22‘23‘2402468

Readers' Seniority

Tooltip

PhD / Post grad / Masters / Doc 13

68%

Researcher 5

26%

Professor / Associate Prof. 1

5%

Readers' Discipline

Tooltip

Earth and Planetary Sciences 18

82%

Environmental Science 2

9%

Pharmacology, Toxicology and Pharmaceut... 1

5%

Engineering 1

5%

Save time finding and organizing research with Mendeley

Sign up for free
0