<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>The proto-Alpine Cenerian orogen (Ediacaran-Ordovician) and the Cadomian orogen (Ediacaran-Cambrian), remnants of which are exposed in the central European Variscides, should be defined as two distinct and spatially separated coastal orogens within the Avalonian-Cadomian belt. The Cadomian orogen originally lay in front of the Sahara metacraton. It underwent a change from an active to a passive margin setting during the Cambrian. The Cenerian orogen, represented by intra-Alpine rocks, was located farther east near the Arabian Nubian Shield, from where it inherited a characteristic Tonian/Stenian detrital zircon signal. Subduction persisted in the Cenerian Orogen until the Ordovician. The Cadomian orogen was akin to Andean type whereas the Cenerian orogen was more akin to Alaskan type. This paper explores why the two orogens have such different characteristics and tectonic evolutions despite their probable proximity in the Avalonian-Cadomian belt. One explanation could be that they were at nearly right-angles to each other due to a strong concave bending of the northern Gondwana margin ahead of the Arabian-Nubian Shield.</p>
</abstract>

The proto-Alpine Cenerian orogen (Ediacaran-Ordovician) and the Cadomian orogen (Ediacaran-Cambrian), remnants of which are exposed in the central European Variscides, should be defined as two distinct and spatially separated coastal orogens within the Avalonian-Cadomian belt. The Cadomian orogen originally lay in front of the Sahara metacraton. It underwent a change from an active to a passive margin setting during the Cambrian. The Cenerian orogen, represented by intra-Alpine rocks, was located farther east near the Arabian Nubian Shield, from where it inherited a characteristic Tonian/Stenian detrital zircon signal. Subduction persisted in the Cenerian Orogen until the Ordovician. The Cadomian orogen was akin to Andean type whereas the Cenerian orogen was more akin to Alaskan type. This paper explores why the two orogens have such different characteristics and tectonic evolutions despite their probable proximity in the Avalonian-Cadomian belt. One explanation could be that they were at nearly right-angles to each other due to a strong concave bending of the northern Gondwana margin ahead of the Arabian-Nubian Shield.

The role of the proto-Alpine Cenerian Orogen in the Avalonian- Cadomian belt

Department of Chemistry and Physics of Materials

Austrian Journal of Earth Sciences

This work is licensed under the Creative Commons Attribution 4.0 International License.

{"article-title":"The role of the proto-Alpine Cenerian Orogen in the Avalonian- Cadomian belt"}

The proto-Alpine Cenerian orogen (Ediacaran-Ordovician) and the Cadomian orogen (Ediacaran-Cambrian), remnants of which are exposed in the central European...

The role of the proto-Alpine Cenerian Orogen in the Avalonian- Cadomian belt

Publié en ligne: 16 mai 2023

Pages: 109 - 115

Reçu: 16 févr. 2023

Accepté: 21 avr. 2023

DOI: https://doi.org/10.17738/ajes.2023.0005

Mots clés
Avalonian Cadomian belt, Cadomian Orogen, Cenerian Orogen, Alps, Ordovician

© 2023 Fritz Finger et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

The role of the proto-Alpine Cenerian Orogen in the Avalonian- Cadomian belt

Publié en ligne: 16 mai 2023

Pages: 109 - 115

Reçu: 16 févr. 2023

Accepté: 21 avr. 2023

DOI: https://doi.org/10.17738/ajes.2023.0005

Mots clésAvalonian Cadomian belt, Cadomian Orogen, Cenerian Orogen, Alps, Ordovician

© 2023 Fritz Finger et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Mots clés
Avalonian Cadomian belt, Cadomian Orogen, Cenerian Orogen, Alps, Ordovician