95

Three coal seams are exposed on the east bank of Skeena River 2 to 3 miles above the mouth of Shegunia River. The writer did not examine these seams, but according to Leach! they are, respectively, 2, 2-1, and 5-1 feet thick. Analyses of the two largest seams gave the following results:

— Meats |) CORE 1 ich Per cent Per cent Per cent Per cent AeilefootiseamMennencn an teres te 1-42 18-76 58-20 21-62 OE-LOOLISCATING etree aerate ears 1-18 20-63 57-27 20-92

Seaton Coal Area? (40)

References: Ann. Repts., Minister of Mines, B.C.: 1916, pp. 121-122; 1921, pp. 161-162. Geol. Surv., Canada: Sum. Rept. 1910, pp. 99-100; Mem. 69, pp. 179-181.

Outcropping along Bulkley River near Seaton (a flag station on the Canadian National Railway 20 miles southeast of Hazelton) is a series of gently dipping sediments containing Upper Cretaceous or Tertiary plant remains. These sediments consist of greywacke, shale, and con- glomerate, and contain seams of bituminous coal. They strike northwest and dip 30 degrees to the northeast.

This coalfield was developed by the Wright Coal Company in 1916 and the Bulkley Valley Coal Mines Syndicate in 1927. Since 1927 there has been no development work.

The seams that have been developed all occur on the west bank of Bulkley River. The main seam, known as No. 1, occurs about 400 yards south of Seaton. It was opened up by a 275-foot drift from the river level and a 30-foot inclined shaft sunk from a point above the drift. The shaft breaks through into the drift 100 feet from the portal. As the workings are now caved the writer was unable to examine this seam. It is reported to be 4% feet wide, split by bands of shale. Lay? gives

the following analysis on a sample from this seam: As received

Per cent IVEOISUUITE RNP iter one tein UP huneencrbaetsy 2A Nort Ab. twtr oR. Wolaittleymiattersenrwre Si vou cya Ce AGO toeedn oan relma ixedycaTbOnbea wate te cro Laces eee Bel INES SHAE AA : 43-8

Four hundred yards downstream another seam (No. 2) is exposed. {t is 17 inches wide, and a drift follows it for 15 feet. According to Lay4, a sample of clean coal gave the following analysis:

As received

Per cent IUIGHIS[NEHED 5.5.6.4) [AOS Al sca i Bae mR rat eget PU Lae U1 anki LM 1) Wolatiletmiatten tier clei, ae cserne cya tier OU. oe ee a OIRO JDibaval Goin ovonig ayy tere ies esate ses aL, = aw, Hapnca amn GIUV Re ey ele WldS( 9) PASH erenarsieie te Hest: tas HN eRROe TNS 16-0

1 Geol. Surv., Canada, Sum. Rept. 1909, p. 67.

2 Examined by J. E. Armstrong.

3 Ann. Rept., Minister of Mines, B.C., 1927, p. 161. 4 Op. cit., p. 161.

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