...geological age. One of these dikes, 1 2 feet wide, is exposed in the Blue Wing mine at the loo-foot level, where it is observed to cut across the schistosity...being quite numerous in parts of Granville and Person counBulletin, Denison University. Vol. XII, Art. VII. PLATE VIII. FIGURE i— SHAFT NUMBER FIGURE 2—...

...strike of the schistosity to be north 10 to 20 degrees east and an eastward dip of 70 to 80 degrees. i The change in these rocks is clearly the result primarily...workable copper ores. The veins are traced for a mile or inore in length on the surface, and in most cases they are more or less parallel, partially overlapping...

...rocks collected at the various depths are indistinguishable. This is also shown in the dumps •it the mine openings. The microscope reveals, as elsewhere...These dikes are described in the reports of the North Cftrolina Survey as being quite numerous in parts of Granville and Person counties. Faulted and slickensided...

...manifested on a considerable scale. The schists are cut in several places by diabase dikes of later geologic age. One of these dikes, 12 feet wide, is exposed...are described in the reports of the North Carolina geological survey as being numerous in parts of Granville and Person counties. According to Watson...

...manifested on a considerable scale. The schists are cut in several places by diabase dikes of later geologic age. One of these dikes, 12 feet wide, is exposed...are described in the reports of the North Carolina geological survey as being numerous in parts of Granville and Person counties. According to Watson...

...places. One of these dikes, twelve feet wide, is exposed in the Blue Wing mine at the hundred-foot level, where it is observed to cut across the schistosity of the rocks. With but few exceptions thin sections of the rocks show a pronounced schistose structure under the...