(Tables, page 14 and 15) Chemical composition of manganese nodules embedded in the grey shales of the Pasquia Hills, Saskatchewan

The basal few hundred feet of grey shales from the Ruling Mountain formation in the Pasquia Hills, Saskatchewan contain nodular concretions rich in iron and manganese. The nodules are resistant to erosion and are abundant in stream beds thereby providing a ready guide to prospecting for their outcrops. The manganiferous horizon is exposed on the Wakei, Whitepoplar and Bainbridge rivers and in several of the canyons on the north slope of the hills as far west as the Man River. The nodules occur in layers as long as 20 to 30 feet and never greater than one nodule thick. In dividual concretions are egg-shaped or disk-shaped with a thickness a one 1 to 6 inches and equivalent diameters although rare specimen are 20 inches in diameter. Being light grey to greenish grey they are often covered by athin (5mm or less) black or light brown skin. The Pasquia nodules are similar geologically and mineralogically to a vast deposit of manganese nodules which occurs near Chamberlain, South Dakota.