 ... down in some cases. The partial concentration of monazite in the top layer of soil is caused by the washing away of the clay and other light decomposition products of the rock. The supply of monazite in the stream gravels in favorable areas is often...  Contributions to Economic Geology, 1907 - Seite 2801908Vollansicht - Über dieses Buch
 | 1908 - 916 Seiten
...gentle slopes below a steeper hillside it may contain a quantity of monazite to a depth of several feet. The partial concentration of monazite in the top layer...replenished by the wash from the hillside soils during heavv rains. This occurs especially where the hills have any considerable slope and the land is cultivated.... | |
 | United States. Bureau of Mines - 1908 - 906 Seiten
...gentle slopes below a steeper hillside it may contain a quantity of monazite to a depth of several feet. The partial concentration of monazite in the top layer...replenished by the wash from the hillside soils during heavy rains. This occurs especially where the hills have any considerable slope and the land is cultivated.... | |
 | 1909 - 852 Seiten
...collected on the gentle slopes below a steeper hill-side, several feet can be sluiced down in some cases. The partial concentration of monazite in the top layer...caused by the washing away of the clay and other light decomposition-products of the rock. The supply of monazite in the stream-gravels in favorable areas... | |
 | North Carolina. Division of Mineral Resources - 1915 - 390 Seiten
...gentle slopes below a steeper hillside, it has been found profitable to sluice down in some cases. The partial concentration of monazite in the top layer...by the wash from the hillside soils during rains, especially where the hills have any considerable slope and the land is cultivated. Under such conditions... | |
 | North Carolina. Department of Conservation and Development - 1916 - 376 Seiten
...gentle slopes below a steeper hillside, it has been found profitable to sluice down in some cases. The partial concentration of monazite in the top layer...by the wash from the hillside soils during rains, especially where the hills have any considerable slope and the land is cultivated. Under such conditions... | |
 | 1916 - 134 Seiten
...gentle slopes below a steeper hillside, it has been found profitable to sluice down in some cases. The partial concentration of monazite in the top layer...by the wash from the hillside soils during rains, especially where the hills have any considerable slope and the land is cultivated. Under such conditions... | |
 | 1909 - 1234 Seiten
...collected on the gentle slopes below a steeper hill-side, several feet can be sluiced down in some cases. The partial concentration of monazite in the top layer of soil is caused by the washiug away of the clay and other light decomposition-products of the rock. The supply of monazite... | |
 | Elisha Mitchell Scientific Society (Chapel Hill, N.C.) - 1908 - 186 Seiten
...collected on the gentle slopes below a steeper hillside several feet can be sluiced down in some cases. The partial concentration of monazite in the top layer...replenished by the wash from the hillside soils during rains ; especially where the hills have any considerable slope and the land is cultivated. Under such conditions... | |
 | 1909 - 806 Seiten
...collected on the gentle slopes below a steeper hillside, several feet can be sluiced down in some cases. The partial concentration of monazite in the top layer...by the wash from the hillside soils during rains, especially where the hills have any considerable slope and the land is cultivated. Under such conditions... | |
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