A Reconnaissance of Parts of Northwestern New Mexico and Northern Arizona |
Common terms and phrases
aluminum tablet stamped anticline Arizona basal Batesville Batesville quadrangle beds bench mark bowlder calcareous Carboniferous chert Chonetes coal Coconino Coconino sandstone conglomerate convexity corner costæ Cretaceous cross-bedded deposits dorsal valve Edmondia fauna Fayetteville feet thick figs FIGURE fossils front of station Gallup Geological Girty Goniatites Grand Canyon granite gravel Horizon and locality.-Moorefield Idaho station Kaibab limestone ledge Lingulidiscina locality.-Moorefield shale loess Louis Louis limestone lower MAINE CENTRAL RAILROAD massive miles north miles south Mississippi Montpelier Moorefield Moorefield shale northeast outcrop Park City formation Pennsylvanian phosphate Plate plateau Productus railroad red sandstone Redwall limestone region Rept River road rocks sand sandy shale shale shell southeast southwest species specimens Spergen Spring Creek Spring Creek stations strata striæ Supai surface Survey Thomas Fork Tonto group top of rail Triassic U. S. Geol unconformity upper Valley ventral valve view in outline Wingate sandstone Zuni
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Page 59 - ... thickness of over forty feet which near the top contain bands of flags or sandstone impregnated with iron. Usually one of these layers at least is fossiliferous and has been termed the Gasteropod zone. Among the fossils so far identified in this bed are the following : Ostrea translucida, Exogyra 1 Farther to the westward this band reposes on the Dakota Sandstone or may perhaps be said to form a part of it.