Metamorphism and Tectonic Evolution of Metamorphic Belts

A special issue of Geosciences (ISSN 2076-3263).

Deadline for manuscript submissions: 31 December 2024 | Viewed by 1277

Special Issue Editors


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Guest Editor
Department of Geology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
Interests: crustal deformation; tectonics; neotectonics; geodynamics; structural geology; active tectonics; geological mapping; regional geology; sedimentary basins; geology
School of Mineral Resources Engineering, Technical University of Crete, 73100 Chania, Greece
Interests: active tectonics; crustal deformation; GNSS analysis; seismotectonics; tectonic geomorphology; structural geology; geological mapping
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Department Applied Geosciences and Geophysics, Petroleum Geology, Montanuniversität Leoben, Leoben, Austria
Interests: geology; paleontology; paleoclimatology; sequence stratigraphy; basin analysis; regional geology; teectonics; geodynamics; geological mapping; geology
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Guest Editor Assistant
Department of Geology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
Interests: structural geology; geological mapping; field geology; geology; teaching Earth; sciences rocks; tectonics; analog modeling; geodynamics

Special Issue Information

Dear Colleagues,

The study of metamorphism and the tectonic evolution of metamorphic belts provides critical insights into the dynamic processes shaping the Earth's crust (compression vs. extension). By analyzing metamorphic rocks and their formation conditions, geologists can reconstruct the history of plate movements, the nature of past environments at great depths and the mechanisms driving the Earth's tectonic activities. This knowledge is fundamental to our understanding of the planet's geological past, present and future. We call for research contributions studying these closely related processes of metamorphism and structural evolution of metamorphic belts produced either during plate convergence, nappe stacking and crustal thickening or plate divergence, crustal thinning and the exhumation of deep crustal rocks.  As an example, we referred to the Himalayan Metamorphic Belt, The Alps, Dinnarides and Hellenides orogenic belts or the Franciscan complex in California.

Dr. Adamantios A. Kilias
Dr. Ilias Lazos
Prof. Dr. Hans-Jürgen Gawlick
Guest Editors

Dr. Emmanouil Katrivanos
Guest Editor Assistant

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Keywords

  • compression
  • extension
  • nappe stacking
  • crustal exhumation
  • orogeny
  • subduction
  • obduction
  • metamorphism
  • migmatites

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Published Papers (1 paper)

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Research

26 pages, 35034 KiB  
Article
Strain Analysis and Kinematics of Deformation of the Tectonic Nappe Pile in Olympos-Ossa Mountainous Area: Implication for the Exhumation History of the HP/LT Ampelakia Unit and the Olympos-Ossa Tectonic Window (Eastern Thessaly, Central Greece)
by Ioannis Vrontzos, Emmanouil Katrivanos, Ilias Lazos, Lambrini Papadopoulou and Adamantios Kilias
Geosciences 2024, 14(7), 179; https://doi.org/10.3390/geosciences14070179 - 28 Jun 2024
Viewed by 703
Abstract
This paper focuses on the structural and finite strain analysis of the Pelagonian nappe, the HP/LT Ampelakia unit, and the Olympos-Ossa unit in the Olympos-Ossa mountainous area in order to better understand the exhumation history of the Ampelakia unit and the underlain Olympos-Ossa [...] Read more.
This paper focuses on the structural and finite strain analysis of the Pelagonian nappe, the HP/LT Ampelakia unit, and the Olympos-Ossa unit in the Olympos-Ossa mountainous area in order to better understand the exhumation history of the Ampelakia unit and the underlain Olympos-Ossa unit. Two main stages of Tertiary deformation were revealed, related to nappe stacking and exhumation processes. During the Paleocene–Eocene crustal subduction, HP/LT metamorphism, compression, and nappe stacking were developed progressively. This D1 stage was terminated with the final SW-ward emplacement of the Ampelakia and Pelagonian nappe on the Olympos-Ossa unit during the Eocene–Early Oligocene. The next stage of deformation, D2, was developed during the Oligocene–Miocene following the orogenic nappes stacking. D2 was considered an extensional event, related to metamorphic isothermal decompression, nappes tectonic denudation, crustal uplift, and final exhumation of the Ampelakia unit and the Olympos-Ossa unit as a tectonic window. The calculated finite strain ellipsoids indicate a main flattening type strain geometry and middle strain intensity, increasing along the nappe contacts. The quartz C-axes diagrams also reveal a flattening type of deformation and non-coaxial flow towards the southwest and northeast at the western and eastern flanks of Olympos-Ossa Mountain, respectively. The calculated Wk vorticity number ranges from 0.23 to 0.93. Full article
(This article belongs to the Special Issue Metamorphism and Tectonic Evolution of Metamorphic Belts)
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Planned Papers

The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.

Title: Thick-skinned triangle zones: An example from pro- and retro-wedges of the western and central Greater Caucasus orogen
Authors: Victor Alania
Affiliation: Institute of Geophysics, I. Javakhishvili Tbilisi State University, Tbilisi, Georgia
Abstract: The Greater Caucasus is one of the best field laboratories to investigate mechanisms of collision-driven far-field double wedge orogen formed by the ongoing collision between the Arabian and Eurasian plates. Within pro-and retro-wedges of the western and central GC orogen, we identify thick-skinned triangle zones where the external side of the triangle involves the foreland basement in the deformation. Our new 2D seismic data from the frontal part of the pro-wedge of Greater Caucasus (Dzirula-Imereti Uplift Zone) have revealed the presence of a crustal-scale triangle zone. The formation of the Dzirula-Imereti Uplift Zone is complicated by the interaction between several detachments from the mid-crustal detachment to the uppermost detachments along the lower and upper Jurassic shales. The structure of the retro-wedge of the Greater Caucasus is very complex as evidenced by 2D seismic sections presented in previous studies (e.g. Sobornov, 2021). The structural styles presented along the Kuban and Terek foreland basins, evidence an evolution of complex geometries like passive-roof duplexes, passive-roof thrust, active-roof duplexes, and growth fault-related folds. Triangle zones in the pro- and retro-wedge of the Greater Caucasus are interpreted as multiple fault-bend fold wedges models and are a good example of the wedge-dominated thick-skinned triangle zone.

Title: Polymetamorphic evolution of Parvenets complex, Bulgaria - U-Th-Pb monazite and zircon geochronology
Authors: Milena Georgieva1*, Valerie Bosse2, Zlatka Cherneva1, Tzvetomila Vladinova3
Affiliation: 1 Sofia University “St. Kliment Ohridski”, Tsar Osvoboditel Blv, 1504 Sofia, Bulgaria; 2 Université Clermont Auvergne (UCA) - Clermont Ferrand – France, Campus universitaire des Cézeaux - 6 av. Blaise Pascal; 3 Geological Institute, Bulgarian Academy of Sciences, Acad.G. Bonchev str., 1113, Sofia Bulgaria

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