Bulletin, 325-329. sayılarU.S. Government Printing Office, 1949 |
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100 sonuçtan 1-5 arası sonuçlar
Sayfa iii
... 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 fossil plants , by David White 24 Extent and ...
... 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 fossil plants , by David White 24 Extent and ...
Sayfa vi
... shale ......... 6. Graphic sections of Fort Smith formation ... .. 7. Graphic sections of Paris shale ............... 8. Map showing structural features of Arkansas coal field .. 9. Diagram of Backbone Ridge fault 10. Diagram of ...
... shale ......... 6. Graphic sections of Fort Smith formation ... .. 7. Graphic sections of Paris shale ............... 8. Map showing structural features of Arkansas coal field .. 9. Diagram of Backbone Ridge fault 10. Diagram of ...
Sayfa 11
... shale , which has been divided as follows : Coal - bearing rocks in Indian Territory . Boggy shale .. Savanna sandstone .. McAlester shale .. Hartshorne sandstone .. Feet . 2,000 1,000 2,000 200 The Hartshorne sandstone , at the base of ...
... shale , which has been divided as follows : Coal - bearing rocks in Indian Territory . Boggy shale .. Savanna sandstone .. McAlester shale .. Hartshorne sandstone .. Feet . 2,000 1,000 2,000 200 The Hartshorne sandstone , at the base of ...
Sayfa 12
... shale and sandstone beds which , though variable in magnitude , have an aggregate thickness not less than . Eastern and lower division , including the coal beds in Coal Hill , Spadra , Ouita , and Shinn basins .. 500 250 These divisions ...
... shale and sandstone beds which , though variable in magnitude , have an aggregate thickness not less than . Eastern and lower division , including the coal beds in Coal Hill , Spadra , Ouita , and Shinn basins .. 500 250 These divisions ...
Sayfa 12
... shales ; only the lower part is present in Arkansas . Sandy shale with thin beds of shaly sandstone . Paris coal bed about 400 feet from top . Sandstone interbedded with shale . Formation yields building stones , flagstones , and brick ...
... shales ; only the lower part is present in Arkansas . Sandy shale with thin beds of shaly sandstone . Paris coal bed about 400 feet from top . Sandstone interbedded with shale . Formation yields building stones , flagstones , and brick ...
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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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