The N anaimo Co al Field

SEVERAL basins of the Nanaimo series, a group of coal-bearing sedimentary rocks of Upper Cretaceous age, underlie parts of Vancouver island and the adjacent gulf islands. One, the Nanaimo basin, occurs on the southern half of the west shore of the gulf of Georgia. About fifty square miles at the north end of this basin are known to be underlain by productive coal seams, this area being known as the Nanaimo coal field. Coal has been mined from two horizons- that of the Wellington seam, fairly low in the series, and that of the Newcastle and Douglas seams, about the middle of the series.
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