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" The quartz grains of the granite remain as sand mixed through a clayey matrix. This quartz sand is almost everywhere to be seen at the immediate surface, from which the clays have been washed by rains. Where Carolina gneiss and granite are intimately... "
Contributions to Economic Geology, 1907 - Page 279
1908
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Proceedings of the Good Roads Institute, Held at the ..., Volumes 1-15

Good Roads Institute, Chapel Hill, N.C. - Roads - 1897
...hornblende. The quartz grains of the granite remain as sand mixed through a clayey matrix. Where the Carolina gneiss and granite are intimately associated,...there results a sandy soil, characteristic of granite, containing scattered through it pebbles of iron ore, characteristic of the Carolina gneiss. The relative...
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Proceedings of the Good Roads Institute, Held at the ..., Volumes 16-25

Good Roads Institute, Chapel Hill, N.C. - Roads - 1908
...small fragments of the original rock, such as tufts of cyanite impregnated with hematite or llmonite, Iron-stained garnets, or pieces of hematite. On more...the quantity of pegmatite or of granite in the rock formation increases. These features of the soils are especially marked on the broad, flat ridges characterizing...
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Journal of the Elisha Mitchell Scientific Society, Volumes 24-26

Elisha Mitchell Scientific Society (Chapel Hill, N.C.) - Natural history - 1908
...purplish color. Granite and its various phases, on partial disintegration and decomposition, yields light sandy soils. On more complete decomposition...are scattered pebbles of hematite and ferruginous oyanite, characteristic of the Carolina gneiss. The relative importance of pebbles in such soils decreases...
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Transactions of the American Institute of Mining, Metallurgical ..., Volume 40

Mineral industries - 1910
...quantity of ferro-magnesian minerals, as hiotite or hornblende, in the original rock. The quartz-grains of the granite remain as sand mixed through a clayey...as the quantity of pegmatite or of granite in the rock-formations increases. These features of the soils are especially marked on the broad, flat ridges...
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Mining and Metallurgy: Published Monthly by the American ..., Issues 25-36

Mineral industries - 1909
...quantity of ferro-magnesian minerals, as biotite or hornblende, in the original rock. The quartz-grains of the granite remain as sand mixed through a clayey...as the quantity of pegmatite or of granite in the rock-formations increases.' These features of the soils are especially marked on the broad, flat ridges...
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Mining and Metallurgy, Volumes 25-30

Mineral industries - 1909
...quantity of ferro-magnesian minerals, as biotite or hornblende, in the original rock. The quartz-grains of the granite remain as sand mixed through a clayey...as the quantity of pegmatite or of granite in the rock-formations increases. These features of the soils are especially marked on the broad, flat ridges...
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Mining and Engineering World, Volume 28

Mineral industries - 1908
...hornblende. The quartz grains of the granite remain as sand mixed through a clayey matrix. Where the Carolina gneiss and granite are intimately associated,...pegmatization has been extensive in a body of Carolina gneiss, tljere results a sandy soil, characteristic of granite, containing scattered through it pebbles of...
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