Geologische Rundschau

, Volume 81, Issue 3, pp 635–654 | Cite as

Neotectonics of the central parts of the Balkan Peninsula: Basic features and concepts

  • Ivan S. Zagorčev
Article
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Abstract

The neotectonic movements on the Balkan Peninsula occurred after the last intense thrusting (Early Miocene), and after the Early — Middle Miocene planation. They were controlled by extensional collapse of the Late Alpine orogen, and by extension behind the Aegean arc, and were influenced by the complicated vertical and horizontal movements in the Pannonian region. The Stara-planina and Dinarian-Hellenic linear neotectonic morphostructures inherited the Alpine orogenic zones (Balkanides and Dinarides-Hellenides) and bounded the Central-Balkan neotectonic region. The linear morphostructures were tilted towards the Pannonian and Euxinian basins and the North-Aegean trough.

The Central-Balkan neotectonic region has a complicated block structure (horst-and-graben pattern) dominated by the NNW-SSE Struma and Vardar lineaments, the WNW-ESE Sava and Marica lineaments, and the Middle-Mesta and North Anatolian fault zones. The dominating Serbo-Macedonian neotectonic swell was rifted, and subsided along the Struma and Vardar lineaments. The range of the vertical neotectonic displacements reached a maximum of 3–4 km, and even up to 6 km at the edges of the Pannonian and Aegean basins. The general doming of the region was controlled by the isostatic uplift of a thickened crustal lens (Rhodope Massif) in the southern margin of the Eurasian plate. The collapse of the complicated domal structure began along the main (Struma, Vardar and Marica) lineaments in the central parts of the dome, and continued in the Pliocene and Quaternary along a more external contour bounded by the Stara-planina and Dinarian-Hellenic linear morphostructures.

Keywords

Middle Miocene Balkan Peninsula North Anatolian Fault Orogenic Zone Isostatic Uplift 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Zusammenfassung

Die neotektonischen Bewegungen der Balkan-Halbinsel begannen nach den letzten intensiven Überschiebungen (frühes Miozän) und nach der frühbis mittelmiozänen Verebnung. Gesteuert wurden die Bewegungen durch den Dehnungskollaps des spätalpinen Orogens, der Dehnung hinter dem Ägäischen Bogen und den komplizierten vertikalen und horizontalen Bewegungen in der pannonischen Region. Die neotektonische Region des Zentralbalkans liegt zwischen den linearen, neotektonischen Morphostrukturen der Strara-planina und der Dinariden-Helleniden. Sie übernahmen die alpidischen Orogenzonen der Balkaniden und Dinariden-Helleniden und wurden zum Pannonischen-, dem Präkarpatischen- und dem Nordägäischen Trog geneigt.

Die Region zeigt einen komplizierten Blockaufbau (Horst- und Grabenstrukturen), der von den NNW-SSE streichenden Struma- und Vardar-Lineamenten, von den WNW-ESE verlaufenden Sava- und Marica-Lineamenten und der Mittelmesta- und der Nordanatolischen Bruchzone dominiert war. Die Serbo-mazedonische neotektonische Schwelle war von Bruchspaltenbildung und Absenkung parallel der Struma- und Vardar-Lineamente betroffen. Die Höhe der vertikalen Versatzbeträge erreichte ein Maximum von 3–4 km; an den Rändern des Pannonischen und Ägäischen Beckens sogar mit bis zu 6 km. Die allgemeine Aufwölbung der Region wurde durch isostatische Hebung der verdickten Krustenteile (Rhodopisches Massiv) am Südrand der Eurasischen Platte bedingt. Der Kollaps der komplizierten Domstruktur begann in dessen Zentralteil entlang der Hauptlineamente (Struma-, Vardar- und Marica-Lineament) und setzte sich, während des Pliozäns und Quartärs, in den peripheren Bereichen, parallel zu den äußeren Begrenzungen (Balkaniden, Dinariden-Helleniden) der linearen Morphostrukturen, fort.

Résumé

Les mouvements néotectoniques dans la péninsule balkanique ont eu lieu après les derniers charriages d'âge miocène inférieur et la pénéplanation du Miocène inférieur et moyen. Ils ont été régis par l'affaissement extensionnel de l'orogène alpin tardif, par l'extension derrière l'arc égéen et par les mouvements verticaux et horizontaux complexes dans la région panonnienne. La région néotectonique centrebalkanique est située entre les morphostructures néotectoniques linéaires de Stara-Planina et des Dinarides-Hellénides. Celles-ci sont héritées des zones orogéniques alpines des Balkanides et des Dinarides-Hellénides et ont été inclinées vers les bassins panonnien, euxinien et nord-égéen.

La région possède une structure en blocs (horsts et grabens) compliquée, dominée par les linéaments NNW-SSE de Struma et du Vardar, les linéaments WNW-ESE de Sava et de Marica et les zones faillées de Moyenne Mesta et d'Anatolie du nord. La ride néotectonique serbo-macédonienne a subi rifting et subsidence au long des linéaments de Struma et du Vardar. Les déplacements néotectoniques verticaux ont atteint 3 à 4 km au maximum, et même 6 km dans les bordures des bassins panonniens et égéen. Le soulèvement en dôme de la région a été provoqué par la montée isostatique d'une portion épaissie de l'écorce (massif du Rhodope) dans la marge méridionale de la plaque eurasiatique. L'affaissement de cette structure en dôme complexe a commencé le long des linéaments principaux (de Struma, Vardar et Marica) dans les parties centrales du dôme et a continué pendant le Pliocène et le Quaternaire le long d'un contour plus externe limité par les morphostructures néotectoniques linéaires de Stara-Planina et dinarohellénique.

Краткое содержание

Неотектонические дв ижения на Балканском полуострове началис ь после последнего ин тенсивного надвига (ранний миоце н) и ранне-, среднемиоценового п енеплена. Они были обу словлены экстенсивным коллап сом позднеальпийско го орогена, растяжением в тылу Эгейской дуги и сложными верти кальными и горизонтальными дви жениями в Паннонским регионе. Центральноб алканский неотектон ический регион расположен ме жду Старапланинской и Динаро-Эллиническо й линейными неотектоническими м орфоструктурами. Они унаследовали альпий ские Балканиды и Динариды-Эллиниды и о казались наклоненны ми к Паннонскому и Эвкси нскому бассейнам, а также и к Северо-эгей скому трогу. Регион имеет сложное строение в виде горст ов и грабенов с преоблад анием Струмского и Ва рдарского линеаментов в прости рании NNWSSO, Савским и Марицким ли неаментами в простирании WNW-OSO и Средн еместенской и Североанатолийско й зонами разрыва. Сербоско-Македонски й неотектонический в ал был затронут рифтооб разованием и прогиба нием вдоль Струмского и Ва рдарского линеамент ов. Максимальные вертик альные неотектониче ские движания были амплит удой порядка 3–4 км, и достига ли 6 км по краям Паннонского и Эгейск ого бассейнов. Появле ние куполообразных стру ктурных элементов в данном регионе связа но с изостатическим поднятием утолщенно й части Земной коры на южной окраине Еврази йской плиты. Коллапс сложной куполообраз ной структуры произо шел вдоль главных (Струмс ким, Вардарским и Марицкий) линеаменто в в центральной части свода, и продолжался в плиоцене и четвертич ном периоде вдоль более в нешнего контура, ограниченного Стара планинской и ДинароЭ ллинической линейными морфостру ктурами.

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Copyright information

© Ferdinand Enke Verlag Stuttgart 1992

Authors and Affiliations

  • Ivan S. Zagorčev
    • 1
  1. 1.Geological InstituteBulgarian Academy of SciencesSofiaBulgaria

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