Arc Magmatism as a Window to Plate Kinematics and Subduction Polarity: Taking the Eastern Pontides Belt , NE region w:st="on">Turkey region>
详细信息
- 责任者：Yener Eyuboglu (Department of Geological Engineering ; Gumushane University ; 29000 Gumushane ; Turkey) ; M.Santosh
- 刊名：Geoscience Frontiers
- 出版年：2011
- 卷期：2(1)
- 页码：p.49-56
- 分类号：0300
- issnNo：ISSN1674-9871
- isbnNo：CN11-5920/P
摘要
The Eastern Pontides orogenic belt in the Black Sea region of Turkey offers a critical window to plate kinematics and subduction polarity during the closure of the Paleotethys. In this paper, the authors provide a brief synthesis on recent information from this belt. The authors infer a southward subduction for the origin of the Eastern Pontides orogenic belt and its associated Late Mesozoic-Cenozoic niagmatism based on clear spatial and temporal variations in Late Cretaceous and Cenozoic arc magmatism, together with the existence of a prominent south-dipping reverse fault system along the entire southern coast of the Black Sea. The model is at variance with some recent proposals favoring a northward subduction polarity, and illustrates the importance of arc magmatism in evaluating the geodynamic milieu associated with convergent margin processes.