Bulletin, Ausgaben 16-17

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Seite 126 - Minerals and gives description of the Tantalum Lamp; gives brief description of Peat Deposits; the manufacture of Sand-lime Brick; Operations of Concentrating Plant in Black Sand Investigations; gives Laws Relating to Mines, Coal Mines, Mining, Mineral Interest in Land, Phosphate Rock, Marl Beds.
Seite 76 - Deposits in North Carolina, by Joseph Hyde Pratt, 1900. 8°, 29 pp., 2 maps. Postage 2 cents. 4. The Mining Industry in North Carolina During 1900, by Joseph Hyde Pratt, 1901. 8°, 36 pp., and map.
Seite 88 - Eoanoke, where these have cut down and left high steep bluffs, exposing a number of geologic formations. -. \ Coastal Plain Region. — This region represents the most recent geologic •'formations composed of gravels, sands, clays and marls arranged in nearly horizontal layers with the finer material nearer the coast. Along its eastern borders this region contains the sounds and bays, the sand dunes and ridges, the swamps and marshes, and other characteristics of a seashore region. Further inland...
Seite 17 - SHADE TREES FOR NORTH CAROLINA. By WW ASHE. INTRODUCTION. Shade trees should be regarded as a necessity on the streets of the cities and towns of North Carolina. They lessen the heat and glare of the long hot summer days without checking the cooling southern breezes, and filter from the air a large portion of the dust which rises from the streets and roads. Nor must their aesthetic qualities be overlooked. Towns fortunate enough to have shaded parks and streets bordered with neatly kept rows of trees...
Seite 88 - ... Piedmont plateau, extending westward from the coastal plain to the mountains, is about 125 miles wide and has an average elevation approximating 800 feet. Crossing this Piedmont plateau obliquely is a series of geologic formations which are, in their general trend, parallel to the mountains and the seashore. The most eastern of these formations is a narrow belt of Triassic sandstone and shales which has a maximum width of about 15 miles, and extends from Oxford, in Granville County, southward...
Seite 88 - ... and has an average elevation approximating 900 feet. Crossing this Piedmont plateau obliquely are a series of geologic formations which are in general parallel to the mountains and seashore. The most eastern of these formations is a narrow belt of Triassic sandstone and shales which has a maximum width of about 15 miles, and extends from Oxford in Granville County across the State through portions of Wake, Durham, Chatham, Moore, Montgomery, Richmond and Anson counties. On the northeast of this...
Seite 91 - In this region, as in the Piedmont plateau, the rocks are decayed to a considerable extent and thus have produced deep soils which vary in character according to the rocks from which they have been derived.
Seite 91 - ... age which are greatly folded and turned on their edges. On the western and eastern borders of this mountain region, approximately along the line of the Blue Ridge and Great Smokies, there are two narrow belts of younger sedimentary rocks, consisting of limestones, shales, and conglomerates, and their metamorphosed equivalents, marbles, quartzites, and slates of Cambrian age. The sedimentary rocks have been formed from sand, gravel, and mud which have been...
Seite 91 - INTBODUCTION. 13 schists which cross through Person, Orange, Randolph, Montgomery, Stanly, and Union counties and has a general width of from 20 to 40 miles. Just west of this there is an area of granites, between which and the mountain region are gneisses, probably Archean. Near the western boundary of the Piedmont plateau region is the second of the two sandstone belts which is much more limited in area than the one to the east and extends from the Virginia line across portions of Rockingham and...
Seite 88 - Further inland it is gently undulating and has more of the upland and less of the marsh and towards its western boundary the swamps disappear almost entirely, the upland predominates and the surface becomes more undulating and even hilly in places. The soils toward the east are composed of fine sand and silt, while nearer the western border of the region they contain a larger proportion of coarse sand or gravel mingled with clay. The extent of this region is from...

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