The age shows that the Caledonia Mountain Pluton is co-genetic with its host metavolcanic rocks, significantly older than the Mechanic Settlement Pluton, and probably unrelated to the Lower Coverdale ferrogabbro complex.
Cet age revele que le pluton du mont Caledonia est cogenetique avec ses roches metavolcaniques hotes, qui sont infiniment plus agees que le pluton de Mechanic Settlement et qui ne sont probablement pas apparentees au complexe de ferrogabbro de Lower Coverdale.
The work was undertaken mainly to investigate the possibility that the pluton is related to the Lower Coverdale ferrogabbro complex encountered in drill holes in a Carboniferous basin about 20 km north of Caledonia Mountain (Boyle and Stirling 1994; Woods 1995; Ascough 1997) (Fig.
COMPARISON WITH THE LOWER COVERDALE FERROGABBRO COMPLEX
The Lower Coverdale ferrogabbro complex is not exposed at the surface, and has been sampled only from drill core (Boyle and Stirling 1994; Woods 1995, Ascough 1997).
A petrological study of the Lower Coverdale ferrogabbro complex has not been published, but it appears to contain a large component of anorthositic rocks (Boyle and Stirling 1994; Woods 1995; Ascough 1997) that are not present in the Caledonia Mountain Pluton, at least not at the present level of exposure.
However, like the Lower Coverdale ferrogabbro complex, the Caledonia Mountain Pluton may have potential for economic Ti-P-V deposits.