Guide books of excursions in Canada1-10 . the rocks are fissured and tra-versed by small calcspar veinlets. Large veins, important for their metalliferous contents,chiefly silver-bearing galena, blende and chalcopyrite, occurin the formation, Several of these are now being explored. The range in age of the Hazelton formation has notbeen definitely established. Fossil plants occur in a numberof the shaly bands, and a few shells, usually imperfectlypreserved, have been collected at several points. Theseindicate an age ranging from Jurassic up to Lower Cretace-ous. Collections of fossils, made by
Guide books of excursions in Canada1-10 . the rocks are fissured and tra-versed by small calcspar veinlets. Large veins, important for their metalliferous contents,chiefly silver-bearing galena, blende and chalcopyrite, occurin the formation, Several of these are now being explored. The range in age of the Hazelton formation has notbeen definitely established. Fossil plants occur in a numberof the shaly bands, and a few shells, usually imperfectlypreserved, have been collected at several points. Theseindicate an age ranging from Jurassic up to Lower Cretace-ous. Collections of fossils, made by W. W. Leach from theupper part of the formation and reported on by LawrenceLambe, include the following specimens. Belemnites skidegatensis, Whiteaves. Nerinea maudensis, Whiteaves. Pleuromya papyracea, var. Carlottensis, Whiteaves. Astarte carlottensis, Whiteaves. Trigonia dawsoni, Whiteaves. Inoceramus concentricus, Parkinson. Pecten (entolium) lenticularis, Whiteaves. Pecten carlottensis, Whiteaves. Thracia semiplanata, Whiteaves. c. and brecciasGenersJ section Buikley River from Maze/ton toTelkwa. — by Leach 17 Kitsalas Formation. The Coast Range batholith isbordered on the east along the Skeena river by a wide beltof volcanics associated with some sedimentary rocks,which have been grouped together as the Kitsalas forma-tion. They are repeatedly intruded by granitic dykes andstocks, and in places, are somewhat schistose, but thealteration is nowhere so complete as in the rocks flankingthe batholith on the west. Ordinarily they are greenishto purplish massive rocks spotted with large, rounded, andirregular areas of epidote, and lined along fracture planeswith the same mineral. The formation is made up near the batholith of porphy-rites, tuffs, and coarse fragmentals, welded closely to-gether, and seldom showing traces of bedding or to the east, the volcanics alternate with dark andlight grey, micaceous sedimentaries. The rocks are every-where h
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectgeology, bookyear1913
