COMPLEX INCLUSION TRAILS
3
3
44
5
5
1+2
muestra 8
truncaciones
Truncaciones ortogonales en granates del domo de Chester, Vermont, EE.UU.Hayward -JMG 1992
N. Hayward, JMG - 1992
Pseudo S-C fabric
Aerden, 2004
Incluion trails witness a succession of 4 deformation phases
Aerden, Tectonics 1998
Montagne Noire
Montagne Noire, FranceAerden, 1998
How would these microstructures have been interpreted 30 years ago?How would you interpret them after the course?
Metodo de Hayward (1991) y Bell et al. (1995) para determinar FIA
N
STRIKE
1 or more horizontal thin sections 6 vertical thin sections
1 LAMINA HORIZONTAL 2 LAMINAS VERTICALES
PLANO DE MEJOR AJUSTE CALCULADO
(orientación de la foliación interna)
El metodo “FITPITCH” (Aerden, 2003)
ajuste a 1 solo plano
Aerden, JSG - 2003
Ajuste a 2 planos
FIA calculado
Ajuste a 3 planos
subvertical FIA
subhoriz. FIA
090
N
vertical and horizontal preferred orientations of inclusion trails: some examples in next slides
Mount Isa Inlier, NE-Australia(subv. FIA were deliberately left out)
Aerden et al., 2013 - Nevado Filabride Complex, SE Spain
pitch of inclusion trail truncations measured in vertical thin sections