The crustal thickness in the Rhodope Metamorphic Complex area from the perspective of the present-day geological knowledge-Reference-Cited by-同舟云学术

The crustal thickness in the Rhodope Metamorphic Complex area from the perspective of the present-day geological knowledge

Published:2023-12 Issue:3 Volume:84 Page:155-158
ISSN:0007-3938
Container-title:Review of the Bulgarian Geological Society
language:en
Short-container-title:Rev. Bulg. Geol. Soc.

Author:

Georgiev Neven

Abstract

The crustal thickness in the area of the Rhodope Metamorphic Complex decreases from west to east from ~50 km to ~30 km. This regional-scale feature is mostly due to the different rates of extension that the basement rocks experienced in different parts of the complex. In our model, we postulate that the crustal thickness in the area is an effect of the late Eocene zipper-like or hinge-like extensional tectonics that caused a larger amount exhumation of high-grade metamorphic rocks in the eastern parts of the area and lesser one in the west. This zipper-like orogen parallel extension caused a vast tectonic erosion and progressive thinning of the crust from west to east.

Publisher

Bulgarian Geological Society

Subject

General Medicine

Reference9 articles.

1. Bonev, N., P. Marchev, R. Moritz, D. Collings. 2015. Jurassic subduction zone tectonics of the Rhodope Massif in the Thrace region (NE Greece) as revealed by new U–Pb and 40Ar/39Ar geochronology of the Evros ophiolite and high-grade basement rocks. – Gondwana Res., 27, 760–775; https://doi.org/10.1016/j.gr.2014.08.008.

2. Georgiev, N., J. Pleuger, N. Froitzheim, S. Sarov, S. Jahn-Awe, T. J. Nagel. 2010. Separate Eocene–Early Oligocene and Miocene stages of extension and core complex formation in the Western Rhodopes, Mesta Basin, and Pirin Mountains (Bulgaria). – Tectonophys., 487, 59–84; https://doi.org/10.1016/j.tecto.2010.03.009.

3. Georgieva, G., S. Nikolova, 2015. The Moho depth and crustal structure beneath Bulgaria obtained from receiver function analysis. – Proc. Bulg. Acad. Sci., 66, 5, 725–732; https://doi.org/10.7546/CR-2013-66-5-13101331-15.

4. Gorinova, Ts., N. Georgiev, Z. Cherneva, K. Naydenov, V. Grozdev, A. Lazarova. 2019. Kinematics and time of emplacement of the Upper Allochthon of the Rhodope Metamorphic Complex: evidence from the Rila Mountains, Bulgaria. – Int. J. Earth Sci., 108, 2129–2152; https://doi.org/10.1007/s00531-019-01754-2.

5. Jahn-Awe, S., N. Froitzheim, T. J. Nagel, D. Frei, N. Georgiev, J. Pleuger. 2010. Structural and geochronological evidence for Paleogene thrusting in the Western Rhodopes (SW Bulgaria) – Elements for a new tectonic model of the Rhodope Metamorphic Province. – Tectonics, 29; https://doi.org/10.1029/2009TC002558.