The distribution of Gondwana-derived terranes in the Early Palaeozoic

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Version: Final published version
Serval ID
serval:BIB_6A7C0CB747D1
Type
Inproceedings: an article in a conference proceedings.
Collection
Publications
Institution
Title
The distribution of Gondwana-derived terranes in the Early Palaeozoic
Title of the conference
Ordovician of the world
Author(s)
Stampfli G.M., von Raumer J., Wilhem C.
Publisher
Instituto Geológico y Minero de España
Organization
11th International Symposium on the Ordovician System
Address
Alcalá de Henares, Madrid
ISBN
978-84-7840-857-3
Publication state
Published
Issued date
2011
Editor
Gutiérrez-Marco J.C., Rábano I., García-Bellido D.
Volume
14
Series
Cuadernos del Museo Geominero
Pages
567-574
Language
english
Abstract
The present day Variscan basement areas of Europe have been recognized as generally derived from Gondwana, based on fauna, facies and detrital zircons distributions. These areas represent only a portion of Europe (Iberia, France, Central Europe), but it is obvious that similar Variscan basements are present in the whole Alpine and Mediterranean areas too, up to the Caucasus. In tracing these terranes back to their possible position around Gondwana, it became obvious that they could not all be positioned north of Africa, as generally shown on reconstructions. We developed the concept of a ribbon like Galatian superterrane that comprised most of these “European” Variscan elements. In Ordovician times, this superterrane extended from the north of South America to South China (located in continuity to Africa).
Along such a length, the geodynamic evolution was not the same, but presents strong similarities. Geodynamic scenarios for the whole Paleozoic have been developed for the different segments, thus allowing us to re-distribute the subterranes in a coherent way. The diachronous openings of the Rheic s.l. ocean, then of the Paleotethys, represent the main reconstruction guidelines, together with major magmatic activity distribution in space and time.
Keywords
Plate tectonics, Paleozoic, Variscan, Gondwana
Create date
20/12/2017 17:34
Last modification date
20/08/2019 14:25
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