34 Ophiolites as Problem and Solution in the Evolution of Geological Thinking
Monday, 5 November 2001
1:30 PM - 5:30 PM
OPHIOLITES: EXTENSION IN A CONVERGENT SETTING, WITH PARTICULAR REFERENCE TO THE WESTERN HELLENIC OPHIOLITES
Paper number: 34-5
Program: Technical Sessions
Time: 1:30 PM – 5:30 PM
Authors
Abstract
Subsequent interpretations assume a plate tectonic setting. Like many other ophiolites, the main problems have been the 'root zone' of the ophiolites; the location and dip direction of associated subduction zones; the tectonic setting(s) indicated by their marked variations in composition; the relationship between extension and convergence; how they were emplaced onto a continent; and significance of the metamorphic sole; and the spatial and temporal relations of the Hellenic ophiolites to contiguous ophiolites in Albania and former Yugoslavia. The Hellenic ophiolites are a critical link between the Tethyan ophiolites in the eastern Mediterranean and the Alpine-Apennine ophiolites to the W. Detailed age dating and geochemical analyses will probably give significant insights into how extension has taken place in this particular convergent setting.