Creek. Another was seen in slate on the top of the ridge
north of Philippon Creek. Several were seen along Alice
Shea Creek where they intrude both slate and serpentine.

Structure. Apart from areas of intrusive rocks, the
other two, serpentine and sediments, are in belts trending
north-westward. The serpentine is flanked by sediments. Al-
though there are local small variations, the general strike
of the sediments is north-westward. The dips at the head of
Wheaton Creek are moderate (40 to 50 degrees north-eastward),
but elsewhere the sediments dip fairly steeply (60 to 80 de-
grees) either to the north-east or south-west. In attempting
to work out the general structure of the sediments no strati-
graphic horizon was found that could be traced from place to
place, as both the limestone and volcanic members are discon-
tinuous and the general succession is not defined clearly
enough to be of much value. The structure-section (see Fig 3)
is the result of strike and dip observations and, therefore,
must be regarded as provisional. It is believed that an anti- ,
clinal axis lies to the north-east of the north-eastern ser-
pentine-sedimentary contact, and a synclinal axis to the north-
east of the south-western contact. Drag-folds with a closure
of not more than 10 feet were seen in the slate on the limbs
of, whe folds:

Peridotite, now altered to serpentine, intrudes the fold-
ed sediments. To the west of Wheaton Creek the serpentine
contact cuts directly across the strike of the sediments.
Elsewhere however, it is conformable not only along the strike
of the sediments, but apparently part of the way down the dip.
Even along the margins of small sedimentary areas within the
serpentine the attitude of the margins is similar to that of
the bedding of the sediments, though undoubtedly, the sedi-
ments must be bottomed at depth. Tongues of serpentine in-
trude limestone on top of the ridge west of Alice Shea Creek.
Apparently the peridotite was intruded along the axis of and
to the north-east of a syncline in the slate. The slate does
not appear to have been disturbed during the process. Sedi-
mentary areas within the serpentine are erosion remnants of a
once continuous, folded sedimentary cover.

Unconsolidated Sediments. Unconsolidated material is
widespread in the area around Wheaton Creek, although there
are few exposures where the nature of the material may be seen.
Most of it is Pleistocene, either glacial or fluvio-glacial.
Some Recent deposits are derived from the reworking of glacial
material by post-glacial streams,

The most widespread, is a veneer of blue-grey boulder -clay

See