Transactions . >« I N»..H MS tiif (itt\;\ <Am»» KmrKHuniiiiii; a cliuti- mi tlir Moiitn-al HivrrTaking in |»ro-|NcturaiikHn StMiHV rnik |Mir1a|{i by i(. Hurt,. ^^ITH TIIK PnoSVKClOH IN Xl ;. A prosp<ct shaft. Maple pro-fMctors Ior^c. (low^ stone oven. Oru-ima, Xipissin^.A rlay oven. Montn-al 0. Scenes oti |)()rtages, riiiiaKaiiii. /V/ In/ H. K. IJorr. The Silver Fields of Xipissing—Hore Glo (i) Exti-usives. (1) Dark coloured basic rocks—basalts—mostly with composition and texture of altereddiabases. (2) Light coloured siliceous
Transactions . >« I N»..H MS tiif (itt\;\ <Am»» KmrKHuniiiiii; a cliuti- mi tlir Moiitn-al HivrrTaking in |»ro-|NcturaiikHn StMiHV rnik |Mir1a|{i by i(. Hurt,. ^^ITH TIIK PnoSVKClOH IN Xl ;. A prosp<ct shaft. Maple pro-fMctors Ior^c. (low^ stone oven. Oru-ima, Xipissin^.A rlay oven. Montn-al 0. Scenes oti |)()rtages, riiiiaKaiiii. /V/ In/ H. K. IJorr. The Silver Fields of Xipissing—Hore Glo (i) Exti-usives. (1) Dark coloured basic rocks—basalts—mostly with composition and texture of altereddiabases. (2) Light coloured siliceous rocks—felsite por-phyries—mostly quartz porphyries which have beenaltered to sericite schists,(ii) Intnisives. (1) Basic rocks, mostly diabase andgabbro, some lamproph\Tes. (2) Siliceous rocks, mostly quartz porpliNTies andporphy rites,(iii) Sediments. (1) The iron formation, chert, jaspi-lite, carbonates, slates and green schists. (2) Fragmental volcanic rocks—a grey felsite ag-glomerate. III.—Structure of the Silver Deposits. In all the silver mines in Xipissing the ore bodies occur fillings. The veins are remarkably narrow, generally undersix inches i
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Keywords: ., book, bookcentury1800, booksubjectmineralindustries, bookyear1895
