Bulletin, 325-329. sayılarU.S. Government Printing Office, 1949 |
Kitabın içinden
100 sonuçtan 1-5 arası sonuçlar
Sayfa 168
... east and southeast , ( c ) from the south and southwest , ( d ) from the west and northwest - and then all tests were classified according to the prevailing direction of the wind for that day , and the individual tests falling in each ...
... east and southeast , ( c ) from the south and southwest , ( d ) from the west and northwest - and then all tests were classified according to the prevailing direction of the wind for that day , and the individual tests falling in each ...
Sayfa 7
... east to Greenwood and thence south past Montreal and Midland to Hart- ford , affording transportation to a large number of small mines ; and the extreme southern part of the field is reached by the Waldron branch of the Kansas City ...
... east to Greenwood and thence south past Montreal and Midland to Hart- ford , affording transportation to a large number of small mines ; and the extreme southern part of the field is reached by the Waldron branch of the Kansas City ...
Sayfa 10
... east and west.a These ridges rise to a nearly uniform height , suggesting an old base- level erosion plain which has ... eastern end near Hot Springs . From this description it will be seen that Arkansas Valley , in which these coal ...
... east and west.a These ridges rise to a nearly uniform height , suggesting an old base- level erosion plain which has ... eastern end near Hot Springs . From this description it will be seen that Arkansas Valley , in which these coal ...
Sayfa 16
... east of Burma , the Hartshorne formation contains only 15 feet of hard rock , and the sandstone which overlies it at ... eastern limits of the field in Arkansas . It is not probable that any one coal bed is con- tinuous through this ...
... east of Burma , the Hartshorne formation contains only 15 feet of hard rock , and the sandstone which overlies it at ... eastern limits of the field in Arkansas . It is not probable that any one coal bed is con- tinuous through this ...
Sayfa 27
... east of Caulks- ville , Ark . , in sec . 3 , T. 7 N. , R. 17 W. Annularia sp . Sphenophyllum emarginatum . Sphenophyllum majus . Eremopteris spinosa . Neuropteris cf. missouriensis ?. Neuropteris scheuchzeri . Linopteris münsteri ...
... east of Caulks- ville , Ark . , in sec . 3 , T. 7 N. , R. 17 W. Annularia sp . Sphenophyllum emarginatum . Sphenophyllum majus . Eremopteris spinosa . Neuropteris cf. missouriensis ?. Neuropteris scheuchzeri . Linopteris münsteri ...
Diğer baskılar - Tümünü görüntüle
Sık kullanılan terimler ve kelime öbekleri
Alaska Arkansas auriferous average basin beach beam bed rock bench Bendeleben Mountains boiler efficiency bowlders Cape Nome carbon cent Chickaloon chloritic clay clinker coal bed coal field coastal plain Collier combustion-chamber temperature creek bed curve deposits district ditch Drill hole dry coal east efficiency 72 fault feet thick formation Fort Smith fossils furnace Geological Survey geology granite gravel greenstone Gulch Hartshorne hydrogen inches Kigluaik Kigluaik Mountains Kougarok limestone lower Matanuska Matanuska River material miles mineral mining Mountains mouth Neuropteris Niukluk River Nome group Norton Bay Norton Bay regions Number of tests Ophir Creek outcrop pay streak placer gold Port Clarence pound of combustible pounds of dry probably quartz ratio reconnaissance reported River sample sand sandstone schist Seward Peninsula shaft Shale Shale roof shows slope Spadra stream surface tion tributary U. S. Geol upper valley veins
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