Proceedings of the American Philosophical Society Held at Philadelphia for Promoting Useful Knowledge, Том 24American Philosophical Society, 1887 |
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Страница 67
... exposures along this road in descending the mountain are practically continuous , yet it will be found difficult to determine accu- rately the place of the fault , so closely do the shales resemble each other and so nearly exact is the ...
... exposures along this road in descending the mountain are practically continuous , yet it will be found difficult to determine accu- rately the place of the fault , so closely do the shales resemble each other and so nearly exact is the ...
Страница 68
... exposures along the railroad that an anticlinal exists in the Peak hills , the low ridge directly north from Pulaski . The limits assigned to the several groups within this area are largely conjectu- ral . The structure of Pulaski ...
... exposures along the railroad that an anticlinal exists in the Peak hills , the low ridge directly north from Pulaski . The limits assigned to the several groups within this area are largely conjectu- ral . The structure of Pulaski ...
Страница 69
... exposures cease . The structure may be regarded as representing two anticlinals with irregular crests , separated by a well - defined synclinal , whose axis is somewhat more than two miles south from Belspring station . The northerly ...
... exposures cease . The structure may be regarded as representing two anticlinals with irregular crests , separated by a well - defined synclinal , whose axis is somewhat more than two miles south from Belspring station . The northerly ...
Страница 80
... Exposures in Wythe , Pulaski and Roanoke show that the Vespertine beds reached far into the area now known as the " Great Valley , " fragmentary patches still remaining at a distance of barely twelve miles from the Archæan , while exposures ...
... Exposures in Wythe , Pulaski and Roanoke show that the Vespertine beds reached far into the area now known as the " Great Valley , " fragmentary patches still remaining at a distance of barely twelve miles from the Archæan , while exposures ...
Страница 82
... exposures occur in the interval along the railroad . Almost continuous exposures on the Newport and Christiansburg road show the space to be filled with gray to yellowish flags and sandstones with few shales . At all localities the beds ...
... exposures occur in the interval along the railroad . Almost continuous exposures on the Newport and Christiansburg road show the space to be filled with gray to yellowish flags and sandstones with few shales . At all localities the beds ...
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Чести термини и фразе
AMER American Philosophical Society angle anticlinal arithmetic beds Belodon Bland county body bones border Brinton brown Brushy mountain cassiterite character Chemung coal color Cope crystals decimal degrees dermal diameter digits distinct division dorsal Draper ectal exposures fairies fault feet femur foot genera genus Giles county horns inches incisors inferior Knox limestones labials latter length less limestone Little Walker lorica lower Mallophaga Max Meadows maxillæ Medina miles mimetite molars muscle Nahuatl natural nearly nerve octonary orbit Oreodon origin Philadelphia PHILOS plate posterior premolar present PROC Prof Pulaski ridge river road rock sandstone scale Sciences selenodont shales side Société species specimens standard subcaudals superior surface synclinal thickness tion Toltecs transverse tribes Tula unit upper valley variation ventrals Vespertine Walker mountain weights and measures Wolf Creek Wythe Wythe county XXIV
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