. The copper-bearing rocks of lake Superior / by Roland Duer Irving. Geology; Geology; Copper ores; Copper ores. Ijio pori'.iyr'ic >iUB 'Ziu largo and abundant, and mauh e.^i«n. The feldspars are also uuasually large, aro both ortboclase aud oligoclase, *>« &^ v«a"^|> ^.WsAJV â OKsi;oS^os'4««'^o Occuning abundai merates; in gre Jes; and again, (0 coarse gabbj tth sides of Lai isent a plainly, ;initic ap-^-^ '"⢠aud stria and quite ients. Quartz grained and more stro:. Please note that these images are extracted from scanned page images that may have been digitally
. The copper-bearing rocks of lake Superior / by Roland Duer Irving. Geology; Geology; Copper ores; Copper ores. Ijio pori'.iyr'ic >iUB 'Ziu largo and abundant, and mauh e.^i«n. The feldspars are also uuasually large, aro both ortboclase aud oligoclase, *>« &^ v«a"^|> ^.WsAJV â OKsi;oS^os'4««'^o Occuning abundai merates; in gre Jes; and again, (0 coarse gabbj tth sides of Lai isent a plainly, ;initic ap-^-^ '"⢠aud stria and quite ients. Quartz grained and more stro:. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Irving, Roland Duer, 1847-1888. Washington, Govt. Print. Off.
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License: Licensed
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectgeology, bookyear1883
