131

TRAIL CREEK MINING DIVISION

(36) Lord Roberts Group, near Birchbank
Source of Information. Langley, A. G.: Ann. Rept., Minister of Mines, B.C., 1920, p. 137.

GENERAL DESCRIPTION

The Lord Roberts group of mineral claims are on the divide between
Murphy and Sullivan creeks, 4 miles from Birchbank. According to
Langley “a number of open-cuts and several shallow shafts oer
(expose) a body of magnetite, which varies in grade and apparently follows
the . . . . contact between the Trail granodiorite and . . . .
the Rossland volcanic group . . . . epidote, garnet, and hornblende
(are present) . . . . The best ore is a bluish, massive magnetite and
has a width in several open-cuts of from 4 to 8 feet. . . . Other
phases . . . . include higher percentages of pyrites, pyrrhotite,
and traces of chalcopyrite. . . . There is abundant evidence of
mineralization over the small area exploited by the shallow surface work-
Se) ees

NELSON MINING DIVISION

(37) Near Beasley

Information has been received that a body of magnetite occurs near
Beasley, within a mile of the railway, on claims owned by W. Moore of
Nelson. Very large masses of magnetite, not in place, were noted by
Dawson! on the north bank of Kootenay river below the second fall.
It is possible that these two occurrences of magnetite, as well as that on
the Lord Roberts group of claims (See page 131), are replacement deposits
of the ‘‘contact-metamorphic” type and have formed at or close to the
edge of bodies of the Mesozoic granites, such as are so widely displayed
through Kootenay district.

(38) Pend d’Oreille and Salmon Rivers

In the thick assemblage of sedimentary strata found near the Inter-
national Boundary west from Kootenay Lake valley, Daly? found . . .
“a deposit of magnetic iron ore aggregating 8 feet in thickness, though
interrupted by small lenses of quartzite, . . . . (in) the ridge over-
looking the South fork of the Salmon river just north of the boundary
line. The deposit is interbedded with the slates and quartzites in the
upper part of the great stratified series forming the main mountain range.
The bed is noteworthy because of the apparent purity of the ore. . . .
It was found in its proper place in the stratigraphic series, though with
greatly reduced thickness . . . . on the ridge north of Lost
Gee os oo @ maullesinomili’s 5 oo «

Hematite has been found on Pend d’Oreille river near its junction
with Salmon river. According to Galloway* the country rock is lime-
stone and the chief ore exposures are on Boundary creek. . . . “The
main working is a tunnel 25 feet long, which apparently cuts . . . . a
small body of iron ore . . . . 50 feet (wide but which) does not con-

1 Dawson, G. M.: ‘Report ona Portion of the West Kootanie District, British Columbia”; Geol. Surv., Canada,
Ann. Rept., vol. IV, pp. 65-66 (1891).

2 Daly, R. A.: Geol. Surv., Canada, Sum. Rept. 1903, p. 100.
3 Gallwey J. D.; Ann. Rept., Minister of Mines, B.C., 1915, p. 167.