Journal
JOURNAL OF MAPS
Volume 19, Issue 1, Pages -Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/17445647.2023.2277387
Keywords
Mykonos Detachment; brittle-ductile deformation; North Cycladic Detachment System; Aegean rift; Cyclades
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This study presents the geological conditions in the northeastern sector of Mykonos Island, including igneous, metamorphic and siliciclastic sequences, and discusses the structural characteristics and deformation patterns of the detachment systems in the region.
We present the 1:8000 scale geological map of the northeastern sector of Mykonos Island, where an igneous, metamorphic and siliciclastic sequence is cut by the North Cycladic Detachment System (NCDS), and brittly-ductily deformed during the emplacement of the Mykonos Granite. We describe the architecture of the (ductile) Livada and (brittle) Mykonos Detachments pertaining to the NCDS. Geological mapping was functional to (i) the description of along and across strike geometrical variations of the detachments and (ii) the analysis of the deformation and strain partitioning within the deformed rocks. We show that deformation localisation differs along dip and strike for the Mykonos Detachment, which accommodated deformation both through thick and localised fault zones. Also, the ductile fabric of the Livada Detachment is characterised by a strong strain localisation, which generally decreases from eastwards. Moreover, the geological map shows that the detachments orientation allowed the local elision of the original tectono-stratigraphy.
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