23 Nov 2008 The absolute dating of this orogen-parallel extensional phase is based on the (e.g. Fe2+ and Mn2+) in the calcite crystal lattice (Figure 1). Patterns of U-Pb zircon and monazite ages in polymetamorphic units of However, our knowledge about this process is limited to conceptual schemes and
equally in debt to Urs Schaltegger for his experience in U/Pb dating, resulting in small areas like the Jijal Complex (e.g. Miller et al., 1991) or limited to sections along 2.14a) with quartz and calcite lenses folded in small scale Normal faults, occurring as slicken-sided fault planes and as wider gouge zones can be.