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3. GEOLOGICAL FRAMEWORK
Fig. 6.
Idealized stratigraphic columns summarizing the main sedimentological features observed in the
(a)
Lower and
(b)
Upper sequences of the Malpica-Tui Complex.
(c)
Trace element tectonic setting diagrams (Bathia and Crook, 1986) for
the metagreywackes and albite-bearing schists and paragneisses from the Lower Sequence of the Malpica-Tui Unit (Fuen-
labrada et al., 2012). Tectonic settings: A) oceanic island arcs, B) continental island arcs, C) active continental margins, D)
passive margins.
(d)
TDM model ages (DePaolo, 1981) of the metasedimentary rocks of the Basal Units (Fuenlabrada
et
al.
, 2012). Triangles and circles show
H
Nd values at 560 and 500 Ma, which are the reference ages for the deposition of the
Lower and Upper sequences, respectively. Data for comparative model ages from different regions taken from Linnemann
and Romer (2002).