WRU

Wolverine Complex

me The rocks of the Wolverine complex have been named
from their widespread occurrence in Wolverine Mountains in
the northeast part of the map-area. Elsewhere a small area
‘of these rocks is exposed at the head of the south fork of
Boulder Creck. The complex consists of quartzites; quartzose,
micaceous, garnetiferous, and chloritic schists; erystalline
limestones; granite gneisses; and pegmatites. Quartzites,
schists, and limestones predominate along the western, front
of the Wolverine Range and quartzites and micaceous schists
at the hoad of the south fork of Boulder Creek; gneisses and
pegmatites are the principal rocks in the centre of the range.
The castern front was not examined. The schists and quartzites
represent metamorphosed argillites and greywackes, and have a
well-devcloved fracture cleavage. The gneisses are composed
of (quartz, ‘feldspe .1r, mica, and garnct in varying proportions.
They ‘are probably for the most part granitized sedimentary
rocks, but the possibility of an igneous origin for some cannot
be excluded. in part this alteration may have been the result
of heat and pressure only, but most of the gneisscs appear to
have been formed in situ by the progressive injection of granitic
material and the gradual replacement of the injected rock. The
pegmatites are coarse-greined rocks consisting of muscovite,
quartz, Peldspar, and a little garnct. They form bodies of
irregular size and shape, but in the main are tabular and about
conformable with the foliated schists and gneisses. Few of them
exceed 100 feet in thickness.

‘ Rie 5 : 1
The Wolverine rocks were first Gxamined by McConnell

1 Rie
ae Surv.., Canada, Ann. Rept., vol. VIL, 1894, pt.'C) p. 353
1896). Batty :

in 1893. He reported that they resembled the Shuswap series of
southern ‘British Columbia, which at that time was regarded as
of Archaean age and not unlike the Grenville serics. of eastern
Canada. In 1927 Dolma age™ examined a similar scries of schists

2 tol : ‘ ;
Geol Sunve wiCanadam Sum hapten (mp sua Dano TO2ON i.

ee

and gneisses along Pinlay River, north of the Manson. Creck area.
He states that the age of tho sorics is not known, but is presum-
ably Precambrian. Kerr? acccpted McConnell's Precambrian age

——

° Geol. Surv., Canada, Sum. Rept. 1933, pt. A, p. 11 (1934).

for the rocks in the Wolverine Range. More recent investigations*

ne

*one Shuswap Rocks of Southern British Columbia; Proc. Sixth

Pace Sci. Congress, 1939, pp. 259-272 (1940).

of the Shuswap rocks of southern British Columbia by scveral
geologists working independently have indicatcd.that they are a
metamorphic complcox; that their transformation is attributed to
processes connected with Mesozoic batholithic intrusions; and