. Report of the geological survey of North Carolina. Vol. I. Physical geography, resumé, economical geology . f—^taSuffiijJtt. 240 &EOLOGY OF NORTH CAROLINA- GuiLDFOKD Ok?] Belt, S(.ltiiekn ;)Kiiu^. Otttm- The mode of occnrrence of the ore in leds is illustrated by Dr. L. bymeans of the following ideal diagram : ECONOMICAL GEOLOGY. 241 The beds were deposited like the rest of the rocks in water ; depositedin the same age witii the rocks wliicli hold them; are in fact rock-de-posits highly charged with, iron ; and thej differ from the rest of the rocksonly in this respect: that
. Report of the geological survey of North Carolina. Vol. I. Physical geography, resumé, economical geology . f—^taSuffiijJtt. 240 &EOLOGY OF NORTH CAROLINA- GuiLDFOKD Ok?] Belt, S(.ltiiekn ;)Kiiu^. Otttm- The mode of occnrrence of the ore in leds is illustrated by Dr. L. bymeans of the following ideal diagram : ECONOMICAL GEOLOGY. 241 The beds were deposited like the rest of the rocks in water ; depositedin the same age witii the rocks wliicli hold them; are in fact rock-de-posits highly charged with, iron ; and thej differ from the rest of the rocksonly in this respect: that they are more highly charged loith iron. Infact all onr primary (magnetic and other) iron ore beds obey this } are merely certain strata consisting more or less completely of per-oxide of iron, with more or less intermixture of sand and rand, whichwhen crystalized, fall into the sha])e of felspar, hornblende, mica, quartz,&c., &c. The belt of outcrop of ore-bearing rocks has a uniform breadth ofseveral hundred yards, and I believe a uniform dip towards the northwest,or north-northwest. The map, however, shows another ore helt^ running parallel with theformer and at a distanc
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectgeology, bookyear1875
