103

Kiskatinaw River

Williams and Bocock (1932) have recorded the following section of the
Smoky group on Kiskatinaw River, about 3 miles above its mouth:

Thickness
Feet
Shaletblackl keane k Meee eed ah REE RR albre Let * sue 20
Sandstone; shale, arenaceous..............000ecececesecceeee 10
Shalevidankyeneyaborblackesemr meen seas an es 90

Dunvegan formation

Clay ironstone concretions and selenite crystals occur in these basal beds
of the Smoky group.

Tuskoola and Wartenbe Mountains

About 800 feet of sandstone and shale of the Smoky group have been
described by Williams and Bocock (1932) on Tuskoola Mountain. These
authors list the diagnostic Watinoceras cf. coloradoense Henderson and
Inoceramus labiatus Schlotheim from the upper 675 feet of this section.
They also have suggested that “1,000 feet or so of mixed sandstones and
shales belong to the Smoky River” on Wartenbe (Table) Mountain.

Pouce Coupé River

In Pouce Coupé River Valley, at the eastern border and east of the
region under consideration in this report, the lower part of the Smoky group
has been described by Warren and Stelck (1940). They acknowledge that
it is difficult to draw a boundary between the Dunvegan and the Smoky,
but do place it at the top of what they call the Doe Creek sandstone. The
Pouce Coupé sandstone member, about 100 feet stratigraphically above the
Doe Creek sandstone, is included in the Smoky. This sandstone and the
overlying shales contain the Dunveganoceras fauna, and, not far above it,
the Turonian fauna, with Watinoceras and other genera, appears.

Crickmay (1944) has described the Smoky group in the vicinity of
Pouce Coupé. He states that it ‘‘overlies the Dunvegan with obvious con-
formity. It consists mainly of shale with a few prominent beds of sand-
stone. One of these, 22 feet thick, lies 270 to 285 feet above the base of
the formation in the Pouce Coupé section”’.

Near Pouce Coupé, Gleddie (1949) estimates a thickness of 1,550 feet
of the Kaskapau and a thickness of 650 feet of the Wapiabiformation. In
the same area he assumes a thickness of 100 feet of the Bighorn or ‘Car-
dium’ formation. He includes the Doe Creek and Pouce Coupé sandstones
in the lower part of the Kaskapau.

It is probable that sediments of the Smoky group underlie a large area
on the Plains, east of the Alaska Highway, that is, east of outcrops of the
Dunvegan formation. Very little is known, or at least very little has been
published, on the geology of this part of northeastern British Columbia.

KOTANEELEE FORMATION
Liard River Valley

The Kotaneelee formation consists of 500 to 1,000 feet of marine shale,
sandstone, and rare conglomerate. It lies between the Fort Nelson forma-
tion below and an unnamed group of non-marine sandstones and shales,

60920—8