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Evidence for a "Cadomian" ophiolite and magmatic-arc complex in SW Bulgaria

Kounov, A. and Graf, J. and von Quadt, A. and Bernoulli, D. and Burg, J.-P. and Seward, D. and Ivanov, Z. and Fanning, M.. (2012) Evidence for a "Cadomian" ophiolite and magmatic-arc complex in SW Bulgaria. Precambrian Research, 212-213. pp. 275-295.

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Official URL: http://edoc.unibas.ch/58795/

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Abstract

New geochronological and geochemical data from the magmatic rocks of the Kraishte area (SW Bulgaria) reveal the existence of Cadomian arc magmatism intruding an ophiolitic complex. Similar geochemical signatures and crystallization ages of the basic to acidic rocks of the Struma Unit and the Osogovo–Lisets Complex suggest that these rocks were derived from one calc-alkaline magma source. They were parts of a magmatic arc associated during Ediacaran–Early Cambrian (560–540 Ma) times with subduction of the Proterozoic Prototethys Ocean. The geochemical analysis of the coeval calc-alkaline granitic magmatism (577–551 Ma) in the Morava Nappe reveals a trend from a within-plate towards volcanic-arc affinity.
Faculties and Departments:05 Faculty of Science > Departement Umweltwissenschaften > Geologie-Paläontologie > Tektonik (nn)
UniBasel Contributors:Kounov, Alexandre and Bernoulli, Daniel
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Elsevier
ISSN:0301-9268
e-ISSN:1872-7433
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:22 Jan 2018 10:51
Deposited On:22 Jan 2018 10:51

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