Mineral resources . and the more characteristicpresence of altered massive quartzites in the Girilambone Group; neverthe-less, although these points of variation exist, it has been considered advis-able to provisonally classify both groups as belonging to the same greatperiod of sedimentation. The Ballast and Weltie Series (Silurian). General Character and Distribution. Cherts, conglomerates, sandstones, shales, and claystones are included inthe series of this name, and the arrangement is approximately Canbelego Series forms a long central mass flanked both east and west * That
Mineral resources . and the more characteristicpresence of altered massive quartzites in the Girilambone Group; neverthe-less, although these points of variation exist, it has been considered advis-able to provisonally classify both groups as belonging to the same greatperiod of sedimentation. The Ballast and Weltie Series (Silurian). General Character and Distribution. Cherts, conglomerates, sandstones, shales, and claystones are included inthe series of this name, and the arrangement is approximately Canbelego Series forms a long central mass flanked both east and west * That is, of the sheared and distorted conglomerates, the augen sandstones, often schistose andarkose, the purple, red, and yellow slates, the schistose .and puckered sandstones characteristically cross-bedded, the phyilites and the massive altered quartzites of Girilambone, Canbelego and Cobar. tThe Mining Geology of the Kanowna Main Reef Line, by T. Blatcbiord, , and J. T. Jutson,pp. 19-22, with figures. Plate (a) Weathering along tiny joints in radiolarian chert from Ballast ISeries, Canbelego shaded portions represent replacements of grey chert by reddish iron oxide.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectminesandmineralresou
