Bulletin, 325-329. sayılarU.S. Government Printing Office, 1949 |
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99 sonuçtan 1-5 arası sonuçlar
Sayfa iii
... Hartshorne sandstone 10 10 13 15 Spadra shale ..... Fort Smith formation .. 17 18 Paris shale .. ......... . Savanna formation 20 21 Surficial deposits Paleontology . Conclusions drawn from studies of the fossils .. 23 23 Report on ...
... Hartshorne sandstone 10 10 13 15 Spadra shale ..... Fort Smith formation .. 17 18 Paris shale .. ......... . Savanna formation 20 21 Surficial deposits Paleontology . Conclusions drawn from studies of the fossils .. 23 23 Report on ...
Sayfa iv
... Hartshorne horizon ...... .. Character and distribution Bonanza and Jenny Lind district . 44 44 45 45 45 46 46 47 47 48 49 49 49 50 50 51 Greenwood and Huntington district Location and extent ... 56 56 Character and thickness of the ...
... Hartshorne horizon ...... .. Character and distribution Bonanza and Jenny Lind district . 44 44 45 45 45 46 46 47 47 48 49 49 49 50 50 51 Greenwood and Huntington district Location and extent ... 56 56 Character and thickness of the ...
Sayfa v
... Hartshorne sandstone south of Shinn basin 16 III . A , Exposure of the Hartshorne sandstone near Piney Creek , east of Knoxville ; B , Apparent unconformity in Hartshorne sandstone due to false bedding .. 18 VI Page . PLATE IV . A ...
... Hartshorne sandstone south of Shinn basin 16 III . A , Exposure of the Hartshorne sandstone near Piney Creek , east of Knoxville ; B , Apparent unconformity in Hartshorne sandstone due to false bedding .. 18 VI Page . PLATE IV . A ...
Sayfa vi
... Hartshorne formation .... 5. Graphic sections of Spadra shale ......... 6. Graphic sections of Fort Smith formation ... .. 7. Graphic sections of Paris shale ............... 8. Map showing structural features of Arkansas coal field .. 9 ...
... Hartshorne formation .... 5. Graphic sections of Spadra shale ......... 6. Graphic sections of Fort Smith formation ... .. 7. Graphic sections of Paris shale ............... 8. Map showing structural features of Arkansas coal field .. 9 ...
Sayfa 4
... coal beds occur in or above the horizon of the Hartshorne coal of Indian Territory , the limits of the coal field have been determined by the presence or absence of rocks overlying this horizon . ( See fig . 2. ) 4 THE ARKANSAS COAL FIELD .
... coal beds occur in or above the horizon of the Hartshorne coal of Indian Territory , the limits of the coal field have been determined by the presence or absence of rocks overlying this horizon . ( See fig . 2. ) 4 THE ARKANSAS COAL FIELD .
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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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