Table 14. Table of formations for the Barkerville Terrane

/ PALEOZOIC =|: LOWER PERMIAN | SUGAR Grey crinoidal limestone
limestone (0-10 m)
Unconformable on Hardscrabble Mountain; not in contact with
Island Mountain
ISLAND MOUNTAIN AMPHIBOLITE — Amphibolite, tuff and siliceous mylonite
(< 150 m)
UPPER PALEOZOIC Fault contact on Eaglesnest; not in contact with Hardscrabble
Mountain
HARDSCRABBLE MOUNTAIN Black siltite, argillite and muddy granule conglomerate
(= 150 m?)
ER, eps eee ee a Unconformity?
BRALCO Grey limestone, locally pelletal, commonly marble, includes
(< 100 m) undifferentiated phyllite
| Conformable with Downey; not in contact with Eaglesnest
EAGLESNEST
| (= 150 m) Grey and olive micaceous feldspathic poorly sorted quartzite
| and phyllite
[ Lateral equivalents?
PALEOZOIC DOWNEY Olive-grey micaceous feldspathic poorly sorted quartzite and
(= 150 m) phyllite, marble, metabasaltic volcaniclastics
Conformity
wn
S | AGNES _ Light grey conglomerate in part with calcareous matrix
| = | (<60m)
| S Lateral equivalents
| = GOOSE PEAK Light grey poorly sorted quartzite, phyllite, minor black siltite
= (<250 m)
fe Conformity?
HARVEYS RIDGE Black micaceous poorly sorted quartzite, siltite and phyllite;
(= 300 m) minor muddy conglomerate, limestone and basaltic
metavolcaniclastics
(e Unconformity?
| KEITHLEY Light grey quartzite; olive micaceous poorly sorted quartzite,
(<300 m) Siltite and phyllite
Conformity?
HADRYNIAN KEE KHAN Marble, olive phyllite, sandy marble
(=<75 m)
| PRECAMBRIAN Conformity
| TREGILLUS Olive-grey micaceous poorly sorted feldspathic quartzite and
| (>400 m) phyllite, conglomerate
ae Lateral equivalents?
RAMOS Olive micaceous poorly sorted feldspathic quartzite and
(> 300 m) phyllite, black siltite and phyllite, amphibolite, marble, minor
: basaltic and felsic volcaniclastics
‘epreiencacgi; vemeean = * 3 Not in contact
HADRYNIAN | TOM Olive-grey micaceous poorly sorted feldspathic quartzite,
OR (=175 m) phyllite and schist; quartzose mylonite
PALEOZOIC |
| The thickness of units is approximate and may vary substantially from the given estimates.

them in the Cariboo Mountains. They essentially rede-
fined the Cariboo Group providing reference sections in
the Cariboo Mountains. The Cariboo Group of Yanks
Peak and of Cariboo Mountains are two different se-
quences, and it is proposed that the Cariboo Group be
defined by the reference sections in the Cariboo Moun-
tains as presented by Campbell et al. (1973) and that the

50

sequence at Yanks Peak be called the Snowshoe Group.

Igneous intrusions of the terrane consist mainly of
diorite and gabbro sills with less quartz porphyry rhyolite.

All rocks have been regionally metamorphosed to low
and middle greenschist facies.