Transactions . BY BORMAY 4 CO., A Typical Example of the Geology of the Zinc-Kegion of North Arkansas. mi: /i\r- i» LEAD-DEPOSITS OF NORTH aim >ve the bedded rinc-or< Sometimes the faults have cutboth Ordovician and Lower Carboniferous rocks, in which cithe ores are found in juxtaposition with Lower Carboniferous


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Keywords: ., bo, bookcentury1800, bookdecade1870, booksubjectmineralindustries