. Transactions . at Wallerfangen and St. Avoid,near Saar Louis. (C. Simon.) Fig. 81.—Cross-section of 81. H, hanging-wall; F, foot-wall. Fig. 82.—Cross-section of the Mechernich deposits, showingirregular faulting of the Knoten sandstone beds. Fig. 83.—Cross-section of the Vesuvius mine, Freihung, , Keuper clay ; h, variegated sandstone; c, ore-beds; d, engine-shaft. Fig. 84.—Section of a tree-stem, replaced with galena, fromFreihung. Fig. 85. Calamine veinlets in the limestone at Raibl; a, lime-stone. Fig. 86.—Cellular calamine of Raibl. Fig. 87.—Section through the Laurium district,
. Transactions . at Wallerfangen and St. Avoid,near Saar Louis. (C. Simon.) Fig. 81.—Cross-section of 81. H, hanging-wall; F, foot-wall. Fig. 82.—Cross-section of the Mechernich deposits, showingirregular faulting of the Knoten sandstone beds. Fig. 83.—Cross-section of the Vesuvius mine, Freihung, , Keuper clay ; h, variegated sandstone; c, ore-beds; d, engine-shaft. Fig. 84.—Section of a tree-stem, replaced with galena, fromFreihung. Fig. 85. Calamine veinlets in the limestone at Raibl; a, lime-stone. Fig. 86.—Cellular calamine of Raibl. Fig. 87.—Section through the Laurium district, Greece; a, lime-stone ; 6, schist; c, Hilarion shaft. Fig. 88.—Section through the Laurium district; a, limestone ; h,schist; cZ, porphyry dikes. (A. Huot.) Fig. 89.—Limonite-deposit in West Cumberland ; a, millstonegrist; 6, mountain limestone; c, Silurian schist. Hematite in place.(J. D. Kendall). Fig. 90.—jBo/meismers-deposit of Wochein, Carniola; a, lime-stone ; h, iron-ore. (A. v. Morlot.). IlradUl/ ^ Riatea, Engra, N. T, 3G8 THE GENESIS OF ORE-DEPOSITS. Description of Figures. Fig. 91.—Tin-vein in Cornwall, with pseudoraorphs of cassiter-ite after feldspar in the granite country-roek. (C. Le Neve Foster.) Fig. 92.—Tin-vein in Cornwall, showing capel or alteredkillas country-rock. (C. Le Neve Foster.) Fig. 93.—Impregnation of the granite with tin-ore at East WhealLovell, Cornwall. (C. Le Neve Foster.) Fig. 94.—Specimens of ore from the Kongens mine at Eoras,Norway. (Th. Kjerulf.) Fig. 95.—Specimen of ore from the Mug mine, Trondhjem, Nor-way ; a, pyrrhotite; b, mica; c, quartz; d, chalcopyrite. () Fig. 96.—Polished section of ore from Amraeberg, Sweden. Fig. 97.—Ditto, showing leaf-silver in fissures in zinc-blende. FiG. 98.—Section through the Copper Falls mine, Lake Superior ;a, trap ; 6, ash-bed at depth of 80 feet; c, amygdaloid ; d, sand-stone at depth of 420 feet. Fig. 99.—Nagynyerges vein at Kisbanya, Transylvania. Fig
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Keywords: ., bo, bookcentury1800, bookdecade1870, booksubjectmineralindustries
