 |
 |
Dear all, I agree with Tim and Brett 101 %. I was studied the main foliations and lineation of the Cabo Ortegal (A HP-HT allocthonous Complex of the NW Spain) that mainly, always show a clear intersection lineation between compositional layers and mylonitic foliation. During many years people, I said more: intelligent geologist identified this intersection lineation as stretching lineation misunderstand all, and subsequently based in this fact they made a amazing exhumations models of the Cabo Ortegal during the Variscan Orogen….. On the other hand, if we are front to a real and clear stretching lineation parallel to one strait axis fold (not a sheath fold), we don’t need forget that we can develop a fold by buckling or bending, where the principal stretching direction (s3) could be normal principal shortening direction (s1) and if quantitatively s3 >s1 the linear or plane-linear fabric resultant, may present a stretching lineation parallel to the axis fold. Thanks for your attention. Francisco J. Fernández Dpto de Geología Área de Geodinámica Universidad de Oviedo C/Arias de Velasco SN 33005 Oviedo. Spain ========================================== Hasta la vista babes ========================================== http://www.geol.uniovi.es/Users/FJFdez.html phone: 34-985103150 FAX 34-985103103 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%