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the margin of Laurussia shortly after its forma-
tion, at
c.
377 Ma. This first interpretation will be
discussed in the next chapters in the light to the
new data obtained in the other members of the
Upper Ophiolitic Units.
Purrido Ophiolite
The Purrido Ophiolite is located in the western
part of the Cabo Ortegal Complex (Fig. 3) and
consists of
c.
300 m of monotonous amphibolites
and garnet-bearing amphibolites formed after
gabbros. Unlike the Careón Ophiolite, well pre-
served metaigneous types have not been found,
but the characteristic amphibolitic types show
similar compositions and mineral assemblages
in both ophiolites. Therefore, they are considered
31
3. GEOLOGICAL FRAMEWORK
Fig. 10.
(
a
) Geological map and cross section of the northern sector of the Malpica–Tui Complex, showing the internal
structure of the Basal Units. (
b
) Idealized reconstruction of the internal structure of the Basal Units across the Órdenes and
Malpica–Tui complexes during advanced stages of their exhumation (D2). The names of significant structures and gneissic
massifs are indicated. Based in Díez Fernández (2011) and Díez Fernández
et al.
(2011).