DISCLAIMER: This English version is translated from the original French. In case of any discrepancy, the French version shall prevail.
The Tasialuk Suite was introduced by Simard et al. (2013) in the Kuujjuaq area (sheet 24J) to describe porphyraceous felsic intrusions located along the Gabriel Fault.
The composition of Tasialuk Suite rocks varies from tonalitic to granodioritic depending on the amount of centimetric K-feldspar phenocrystals (5-25%) that define the porphyraceous texture. The rock is generally homogeneous, medium grained and grey to pinkish grey. It contains 10-25% ferromagnesian minerals (biotite and, in lesser amount, hornblende) that form clusters with epidote, sphene and magnetite. Rocks are affected by strong to mylonitic foliation probably associated with deformation of the Gabriel Fault.
Thickness and distribution
The Tasialuk Suite consists of three intrusions located in the NW portion of the Baleine Lithotectonic Domain (Lafrance et al., in preparation). These intrusions, which cover a total area of ~38 km2, are 5-20 km long by 0.5-2.5 km wide.
No dating exists, but crosscutting relationships indicate an age younger than 1835 Ma (Kaslac Complex).
Does not apply.